Lexmark C910 5055-01x manual

5055-01X C910 Color Printer Lex mark and L e xmark with diamond design ar e tradema rks of Lex mark Internati onal, Inc. , register ed i n the United States and/ or other count ri es. • T able o f Content s •I n d e x • Safety an d Not ices • T radem ark s •S t a r t D i a g n o s t i c s • Manuals Men u Ser v ice .bk Page i Thur sda y,[...]

Edi ti on : N ove mb er 20 01 The foll owi ng para grap h d oes n ot app ly to a ny coun tr y w he re such pr ovision s a re incon sis te nt wit h lo ca l l aw : LEXM ARK INTER N A TIONA L, INC. PRO V ID ES THIS PUBLIC A TION “AS IS” WI TH OUT W A RRAN TY OF A NY KI ND , EIT HER EXPR ESS OR IMPLIED , I NCLUDING, BUT NO T LI MITED TO , THE IMPLI[...]

iii 5055-01x Contents Safe ty Info rmatio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Gen era l Inf orm at ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Main tenance A pproa [...]

iv Ser v ice M anual 5055-0 1x Dia gno st ic I n fo r m at io n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Adjustmen ts and Procedures Following Parts Replacem ent . . . . 2 - 1 Sta rt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 Initi al C h ec k . . . . . . . .[...]

v 5055-01x Repair Inf ormation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Service Preca utions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Handlin g Printed Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 A dj u st m e n t s . . . . . . . . . . . . . . . . . . .[...]

vi Ser v ice M anual 5055-0 1x Registration Frame, Registration Clutch Removal . . . . . . . . . . .4-29 Transfer Bel t Remov al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30 Belt Up/Down Detec tion Sen sor Rem oval . . . . . . . . . . . . . . . . . . 4-34 Sensor B oard Rem oval . . . . . . . . . . . . . . . . . . . . . . .[...]

vii 5055-01x Duplex Pressure Roller and Solenoid Remov al . . . . . . . . . . . . . 4 -73 Duplex Feed Rol ler And Solenoid Removal . . . . . . . . . . . . . . . . 4-73 Duplex Side Fence Mo tor Assembly / Side Fence Removal . . . 4 - 7 4 Duplex Paper Carrying M otor Removal . . . . . . . . . . . . . . . . . . . 4 -75 HCPF Co vers Removal . . . . . .[...]

vi ii Ser vice M anual 5055-0 1x Par ts Cata log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 How to Use T his Parts Cat a log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Asse mbly 1: Covers 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2 Asse mbly 2: Covers 2 . .[...]

Saf ety Inf ormation ix 5055-01x S a fe t y I n fo r m a t i o n Sa fety No tic e • This product is designed, teste d an d ap pro v ed to meet strict global safety stan dards with the u se of spe cific Lexmark component s. The safety features of som e p ar ts m ay not alwa y s be obvious. Le xma rk is not responsible f or the use of other replac [...]

x Ser vice M anual 5055-0 1x No rme di sicu rezza • Il prodotto è stato progettato , testato e approv ato in conformi t à a s ev er i standa rd di sicurezza e p er l ’ ut i lizzo con componen ti Lexmark specifici. Le caratter istiche di sicurezza di alcune par ti non sempre sono di immed iata comprensio ne. Lexmark non è responsabile per l ?[...]

Saf ety Inf ormation xi 5055-01x Pa utas d e S e gu r ida d • Este producto se ha dise ñ ado, verificado y aprobado para cumpli r los m á s estrict os est á n dares d e s egurida d gl obal usando los comp onentes espec í ficos de Lexmark. Puede que las caracter í sticas de segur idad de alg unas p iezas n o sean siempr e e vide ntes. Le xmar[...]

xi i Service M anu a l 5055-0 1x Info rma ció de S egu retat • Aquest p roducte es t à disseny at , comprova t i aprov at per tal d'acompli r les estrictes norm es de se guretat globals amb la utili lit z aci ó d e c ompone nts espec í fics de Le xm ar k. Les caract er í stiques de s egu retat d'algunes pec es po t ser que no sempr[...]

S a fe ty In fo r m a ti on xiii 5055-01x Ser v ice .bk Page x iii Thu rsda y, Oc t ober 4, 2001 12: 20 PM[...]

xi v Ser v ice Manual 5055-0 1x Ser v ice .bk Page x iv Thur sda y, Oct ob er 4, 2001 12 :20 PM[...]

General Infor mation 1-1 5055-01x 1. Ge n e r a l In form a tio n Ma i nt e na nc e Ap proa ch The diagn ostic informat ion in this m anual le ads you t o the correct field rep laceable un it (FR U) or par t. U se the error c ode char ts , sym ptom inde x, and s er vi ce checks to det er mine the s ymptom a nd repair the f ailure. The remov als in [...]

1-2 Service M anual 5055-0 1x • Pr int a Demo page. • If ad ditional paper s ources a re in stalled, pr int a Dem o page from each of these, (if po ssible ). Note: F ailure to p rint from an a dditional tra y or f eeder ma y imply one or more pins are bent in the mating conn ector . Return P ar ts Enginee rin g period ically analyzes returned p[...]

General Infor mation 1-3 5055-01x Serial Number Open th e front door , the ser ial number is located as shown. The ser ial number is also on the menu settings page you can print f rom the T es ts Menu. Ser vi ce .b k Pa g e 3 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

1-4 Service M anual 5055-0 1x Ab bre viat ions ASIC Appl ication-Specific Int egrated Circuit CSU Customer Setup DRAM Dyna mic Random Access Memor y EPROM Erasable Progr am m able Read-Only Memor y EP Ele ctrophotographic Proces s ESD Ele ctrostatic Discharge FR U Field Rep laceable Unit HVPS High V oltage P ower Sup ply LA N Loc al A r ea Net w or[...]

General Infor mation 1-5 5055-01x Pr ocesses and Con figurati o n In this printer , the toner of f o ur colors (magent a, cyan, yellow and blac k) melts a nd d eposits on pape r , dots which record c olor i mage informat ion. This prin ting process is called the el ectropho tograph y pr oc es s. Elec trop hotog raph y Pro cess In the el ectrophotog[...]

1-6 Service M anual 5055-0 1x De velop ment Unit T on er f or ms the electrostatic image on the photosen sitive drum dur ing e xpos ure. The single c omponent, non-magnet ic toner a nd the lusterless color toner are weat h er-resistant, and f a de little under ultrav i olet ra ys. This i s helpful in saving documents. T on er in t he hopper is agit[...]

General Infor mation 1-7 5055-01x Cleaning Unit T oner remaining on t he p hotosens itiv e dr um followi ng transf e r , is scraped aw ay with the cleaning bl ade, and collected in the recov er y bag as waste tone r . Res idual toner o n t he photosensitive medi um is remov ed by the e raser . Paper Fe e di n g / Fu s i ng The ma in unit drive is c[...]

1-8 Service M anual 5055-0 1x Drive S ystem Driv e 1, com posed of a 100 dc mo tor and gear unit, f e eds the registration paper from the paper f eeder and dri ves the belt un it, photodev elop er / t oner car t ri dge, fusing unit, and f ace-up deliv e r y unit. T he motor rot ates by t he ON signal fro m the pr inter c ontroller/ motor drive un i[...]

General Infor mation 1-9 5055-01x Paper Fe e di n g The paper feeder i s a two-wa y syst em compos ed of the multi-paper feeder (100 sheets maximum) and a n i ntegrated 55 0 shee t tray) . Opt ionally , the expansion pap er feeders (55 0 shee ts) can be increased to f our la yers . A high capacity paper feeding system (3,000 sheet s) may be used. C[...]

1-1 0 Ser vice M anual 5055-0 1x Mult i-Purpose F eeding The multi-paper f ee d solenoid tur ns on by the signal from the pr inter controller . Th e m ulti-pur pose f eed roll interconnect ed with t he d rive 1 through the spr ing clutch, rotates and picks the paper in t he multi- pur po se f eeder . Ser v ice .bk Page 1 0 Thur sday, Octob er 4, 20[...]

General Inf or m at ion 1-1 1 5055-01x Registration Unit Medi a tem porarily sto ps (registration) when adj usting t he paper leading ed ge p arallel with that o f the image, or when adju sting t he timing with the b l ack i m age. The upper and lower registr at ion rolls are arr ang ed in parallel wi t h the photosens itive drum for bl ack imaging[...]

1-1 2 Ser vice M anual 5055-0 1x Sepa r ati on Un it The transf er belt and paper are separated with t h e belt dr ive rol l by separation fing ers. Ser v ice .bk Page 1 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

General Inf or m at ion 1-1 3 5055-01x Fuser Unit By a pplying heat and p ressure, the im age is melted and fus ed to the paper. The u pper an d lower rollers are heat ed and p ressure-fitted. A heat er is positioned in the roller tube and a therm istor and therm ostat remain in contact wit h the o utside of th e tube. Separation finge rs are attac[...]

1-1 4 Ser vice M anual 5055-0 1x Deli very After completing the fusing process, paper is d ischarged from the printe r . The deliver y sensor detec ts the paper condition and the FU/FD deflector s witc hes betw een the f ace-up and f ace-down paper deliv e r y . The paper from the fuser pulls do wn the sen sing lev er turn ing on t he deliv er y se[...]

General Inf or m at ion 1-1 5 5055-01x Belt Unit After passing through th e registration u nit, paper is e lectrostat ically fed b y the transfer belt through the positivel y charged feed rol l at the inlet of the belt unit and f ed b y the running bel t. The belt runs at the same s peed as the photosens itive drum causing the image on the C, M, Y [...]

1-1 6 Ser vice M anual 5055-0 1x Belt Up/Do wn In monochrome pri nting, switching to colo r pri nting is not required. T o av oid unneces sar y wear of th e photose nsitiv e dr um b y the cleaning blade, t his operation is stopped with the elect romagnet ic clutch in drive 1. The transf er belt is lo wered so as not to touch the photosensitive drum[...]

General Inf or m at ion 1-1 7 5055-01x Duplex Unit A duplex unit can be optiona lly installed in t h e main unit, allowing two-sided pri nting. Select ing Paper feed ing , R egi st rati on , T r ansfer , Se paratio n , Fus in g , or Face -D own pa per dis char gi ng with the pulse motor in the dupl e x unit, f eeding is stopp ed bef ore th e paper [...]

1-1 8 Ser vice M anual 5055-0 1x Pri nti ng Mode Usually print ing is perf or m ed in nor mal mode, OHP m ode, thi ck paper mode, and envelope/postcard mode. The mod e is s wi tched by a command from the interface cont roller . OHP Mo de OHP mode is used f or improving color printing on transparencie s. With an o verhead projector (OHP), light t ra[...]

General Inf or m at ion 1-1 9 5055-01x En velope / P ostcar d Mode Env el ope / post card mode i s us ed t o imp rov e prin ting q uality o n thick paper of small width. In this mode, t he fusing temperature is set higher than us ua l and tra nsf er v oltag e is swit che d acc ording to the temperature. Operat ion Mo de Operation m ode s suc h a s [...]

1-2 0 Ser vice M anual 5055-0 1x Clea ring P aper Jams 200 P ap er Jam <x> Pa ges Jamm ed (Check Areas A-F) A 200 P aper Jam mess age indicates that pap er is jamm ed. T he displa y alte r nates between 200 P aper Jam <x> P ages J a mm ed and Check A rea s A-F . If there is a p aper j am whe n you tur n the pr inter on , the second line[...]

General Inf or m at ion 1-2 1 5055-01x Check Area C Jams that cause a Chec k A rea C message re quire opening the duplex jam access door . If y o u are pr inting on small paper , the foll owi ng steps m ay not clear t he jam. S ee “ Removing Small Size P a per Fr om the D uple x Uni t ” on page 1- 2 2 . 1. Open the dupl ex jam acce ss door on t[...]

1-2 2 Ser vice M anual 5055-0 1x Removing Small Size P a per From the Duplex Unit When pr inting on both sides of A5 or other small siz e paper , you ma y need t o par tially remove t h e duplex un it to clear the jam. 1. T urn of f the pr inter . 2. Open t he d uple x unit doo r . 3. Loo se n t he t w o scr e ws . 4. Pul l out the d uple x unit fa[...]

General Inf or m at ion 1-2 3 5055-01x Check Area F 1. Pull the high capacity f e eder aw ay from the printer . 2. Op en the jam access door on the top optional dra wer . 3. Remov e any jams. 4. Close t he jam access d oor . 5. Slide the high capacity feeder until t he f eeder locks to t he docking fr am e. When the f eede r is in t he correct posi[...]

1-2 4 Ser vice M anual 5055-0 1x 249 P ap er Jam Check T ray <x> A 249 P aper Jam Check T ra y <x> me ssage in dicates a jam has occurred i n the high capacity feeder . 1. Open t he top cov er . 2. R emove the jam. 3. C lose the top cover . 4. Press Go . Ser v ice .bk Page 2 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

General Inf or m at ion 1-2 5 5055-01x High Capa city P ape r Feeder (HCPF) Paper Feed an d S eparatio n Mech anism The high capacity pap er f eeder con sists of a tra y a nd p aper transfer . The paper feed and separation mechanism uses a friction roller separation and paper f eed system with a no n-contact magnet type main tenanc e-free torque li[...]

1-2 6 Ser vice M anual 5055-0 1x Regi strat ion O pera tion When the paper f eed m otor rotates, the transfer ro ller is dr iven with rela y gears. The re verse r o ller shaft rotates the gears on the pape r f eed clutch in the direction of the arro w an d stops b y the friction f orce of the paper f eed roller . Ser v ice .bk Page 2 6 Thur sday, O[...]

General Inf or m at ion 1-2 7 5055-01x T ray Up/Down Mechanism The dr iving f orce of the tr a y motor transmits to the tray dr iving pulley through the gears. M oving the tra y mov es up and dow n through the tra y dri ving belt. After the paper loads, and t he top cov er is set, the pickup solenoid tur ns on to lower the call rol ler. When the tr[...]

1-2 8 Ser vice M anual 5055-0 1x When t he down button is pressed, the tra y motor rev e rses to mov e the tr a y down. During the down motion of the tra y , as the top surface of pap er passes the pap er le v el sensor , the tray moto r stops. T he tra y mov es down by about 500 sheets. The down sensor detects the tray lowe r li mi t pos itio n. S[...]

General Inf or m at ion 1-2 9 5055-01x T r ay Up Condition T ra y up m otion stops whe n t he: • Up sensor is OFF (not shielded) • P ower c o rd is connected and the joint SW is ON • Up sensor is ON (shielded) during printing • T op cover is closed, or when up s ensor i s ON T r ay Do wn Conditi on T ra y down motion stops when the: • P a[...]

1-3 0 Ser vice M anual 5055-0 1x Size Detecti on M echanism The pap er size c an be switched between A4 an d letter (11 in ches) by c h anging the side f ence pos ition. The pap er size sens or 2 dete cts the fixing scre w 2 at the A4 position. The pap er size sens or 1 dete cts the fixing scre w 1 at the letter position. T ra y up motion stops whe[...]

General Inf or m at ion 1-3 1 5055-01x Residual P ap er Detection M echanism The residual paper quantity in the tra y is detected with f ou r photo inte rrupters. The q uant ity of pa ges remaini ng in the s heet feeder , d isp lays in t he followin g i ncre men ts: • Near end, a bout 80 sheet s • About 3 00 s heets • About 1 ,000 shee ts •[...]

1-3 2 Ser vice M anual 5055-0 1x P aper End De tec tio n A reflection type sensor is provided on t he top sta y to detect the paper to p surface an d the paper end. Ser v ice .bk Page 3 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

General Inf or m at ion 1-3 3 5055-01x Mainten ance Mo de DIP S witch Speci fications The DIP s wi tches on the high capa city paper f eed board hav e the foll owi ng functions: • Functio n s witching and initial setting of the st andard machine or optiona l machi ne. • Maintenance switch (test mo d e selection) is v alid without connecting to [...]

1-3 4 Ser vice M anual 5055-0 1x • T est paper f e ed operation. 1. T ur n on the docking safety switch with a non -metallic ob ject. The interface cab le with the printer controller board need not be con nected. 2. C lose the top cov er or manually acti vate the co ver s witch. 3. L oad paper . 4. Wait until t he paper tra y stops and the pickup[...]

General Inf or m at ion 1-3 5 5055-01x High Capa city P aper F eed Se nso r / Swi tc h T est The condition of ea ch sensor can b e c heck ed from the lighting of LEDs on the high capac ity paper f eed board. When each sensor operates with the power s u pplied, the associated LED lights. T o perf or m the test: Interrup t the photointerrupter sensor[...]

1-3 6 Ser vice M anual 5055-0 1x Ser v ice .bk Page 3 6 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Diagnost ic Inf ormat ion 2-1 5055-01x 2. Diagn ost ic Inf o rmation The diagn os tic inf or mation in this c ha pter leads you to t he f ail ing par t . Before y ou replace an entire assembly , deter mi ne if just the defectiv e par t i s av ai lab l e in the par t s cat alog. Us e the error cod e tables, sy m ptom table, s e r v ice checks and th[...]

2-2 Service M anual 5055-0 1x Printer Contro ll e r Board/ Prin ter Contr ol EPROM (U5) If you replace the pr inter controller board, remove EPROM (U5) and install it on the new board. A lso check the printhead alig nme nt. If you change the EPROM, the f ollo wing items must be checked and adjusted in the diagnostic mode. • LED Pri nthe ad Light [...]

Diagnost ic Inf ormat ion 2-3 5055-01x Start Initial Ch eck Before you star t troubleshooting, check the f ollowing: Installation En vironment • The power supp ly line v oltage is plus o r minus 10% of the rated line voltage. • The machin e is securely installed on a le v e l surface in a well- ventilated place. • The room tempe rature is bet[...]

2-4 Service M anual 5055-0 1x Pri nt er Me ss ag es The printer displays t hree types of mess ages: ser v ice me ssages, status messages, and attend ance messages . Service m essages indicate a probl e m that requires a ser vice technicia n. S tatus messag es provide inf o rmat ion abou t th e current s tate of the pr inter , requiring no action. A[...]

Diagnost ic Inf ormat ion 2-5 5055-01x 911 - P aper Ex it Moto r Erro r 912 - H igh Cap acity P aper Feed Moto r Err or Ste p Questi ons / Actions Ye s N o 1 Is conn ector CN4 on the pri nte r controll er board secur ely connec ted? Replace the paper exit motor and go to step 2. Plu g the con nector in securely . 2 Did rep lac ement of the paper ex[...]

2-6 Service M anual 5055-0 1x 91 7 - RIP F an Err or 918 - M ain Unit F an Err or 919 - P ow er Su pp ly Fan Er ror 917 Se r v i ce F a n E rro r Step Questions / Actions Y e s No 1 Is co nnector J5 o n the RIP board conn ected properl y? Go to step 2. Properly connect J5. 2 Is 24 V dc pre sent between pins 1 and 3 of connect or J5 on the RIP board[...]

Diagnost ic Inf ormat ion 2-7 5055-01x 920 - Fu ser E r r or - Fuse r Hea ter T rou ble 923 - U pper Fu ser Th er mistor Open E r ror 92x Serv ice Fu s er E rro r Step Questions / Actions Ye s N o 1 Replace the fuser . Di d th i s fix th e prob lem? Prob lem s olv ed. Return the f user , replac e the po wer supply 2 and go to step 2 . 2 Did r eplac[...]

2-8 Service M anual 5055-0 1x 924 - L ower Fuser T hermisto r Open Err or 925 - H igh Pr essure Con tr o ller Err or Step Questions / Actions Ye s N o 1 Is co nnector CN44 on the printer contr oller boar d connect ed properl y? Disc onnect CN44 and turn the printer on. Go to step 2. Plug the connec t or i n secu rely . 2 Is e rror 924 displ ay ed? [...]

Diagnost ic Inf ormat ion 2-9 5055-01x 926(K ), 927(C), 928(Y), 929 (M) - T oner Sen sor Err or 92x Serv ice T one r Se ns or Step Questions / Actions Ye s N o 1 Is the ton e r c artridge th e c or re c t ty p e for the prin ter ? Go to step 2 . Recommend the customer repl ace the c ar t ridge wi th the c orrect type. 2 Is the ton e r c artridge en[...]

2-1 0 Ser vice M anual 5055-0 1x 930 - Y ello w Printh ead Err or 93 1 - Ma genta Prin thead E rro r 932 - C y an Prin thead E rro r 930 Se r v i ce Prin t hea d E rro r Ste p Questi ons / Actions Ye s N o 1 I s fuse 5 on the printhe ad control board o pen? Repla ce the print head c ontrol board , cabl es , and LE D pr inthead. Replace th e printhe[...]

Diagnostic Inf or m ation 2-1 1 5055-01x 933 - B lack Printhe ad Er ror 934 - C olor Drum Sens or Err or Step Questions / Actions Ye s N o 1 I s fuse 4 on the printhe ad cont rol board open? Replace th e printhe ad control board, cab les , and LED printhead . Replace t he printh ead contr oller b oard. 934 Se rvice Dr u m Se ns or Ste p Qu est ion [...]

2-1 2 Ser vice M anual 5055-0 1x 93 5 - Blac k Dr um Senso r Err or 936 - 9 39 Cas sette E r r or Step Q uestions / Actions Ye s N o 1 Is c onnecto r CN27 connect ed properly? Go to step 2. Plug t he connec tor in se curely . 2 Clean th e bl ack drum sensor LED . Di d th i s fix th e prob lem? Prob lem s olv ed. Replace th e bl ack drum sensor . Go[...]

Diagnostic Inf or m ation 2-1 3 5055-01x 940 - H igh Cap acity P aper Feed Sens or Err or 941 - H igh Cap acity P aper Feed T ra y Err or 942 - D u plex E rror Step Questions / Actions Ye s N o 1 I s co nnector CN40 on the printer contro ller bo ard connect ed prop erly? Go t o “ Hi gh Capacity P aper Feed (HCPF) Service Chec k ” on page 2-57 .[...]

2-1 4 Ser vice M anual 5055-0 1x 94 5 - Engin e Flash Erro r Reflash the engine code. 946 - P rinter / P rin th ead Contr oller Boar d Co mmun ication Err or 945 Se r v i ce Eng i ne Fl as h 946 Se r v i ce Communi cation Step Q uestions / Actions Ye s N o 1 Replace the print head con trol ler board. Di d thi s fix t he prob lem? Problem solved. Re[...]

Diagnostic Inf or m ation 2-1 5 5055-01x 948 - Mac hine ID Erro r 952 - N V RAM Chip Fa ilure Replace the pr inter c ontroller bo ard. 954 - NVRAM CRC F ailure Replace the RI P boa rd. 955 - Code CRC Replace the RI P boa rd. 948 Se rvice Machine ID Ste p Qu est ion s / Actions Ye s N o 1 T urn the pr int er of f and w ait 30 seconds. T urn t he pri[...]

2-1 6 Ser vice M anual 5055-0 1x 95 6 - Pr ocessor F ailure Replace the RIP board. 957 - AS IC F ailure Replace the RIP board. 958 - NAND F ailure Replace the RIP board. 960 - RAM Slot 1 Bad Replace RAM Card or the RIP boa rd. 961 - RAM Slot 2 Bad Replace RAM Card or the RIP boa rd. 962 - RAM Slot 3 Bad Replace RAM Card or the RIP boa rd. 96 4 - Em[...]

Diagnostic Inf or m ation 2-1 7 5055-01x 970 - S tandar d Ne twor k Err or 975 - U nrecogn izable Ne twor k P ort Software error . 976 - U nreco verable S oftware E rro r in Netw ork P ort Soft ware err or . T o to the “ O ptions Ser vice Check ” on pag e 2-7 7 and refer to the net work card op tion section. 978 - Bad Chec k sum While Pr ogra m[...]

2-1 8 Ser vice M anual 5055-0 1x 980 - F ace-Up/Do wn Switc hing Err or 980 Se r v i ce Swi tch E rro r Ch ec k Area B Step Questions / Actions Ye s N o 1 Is t he l i nkage betwee n the FU /F D def le c to r and t he FU defl ector soleno id opera ting properl y? Go to step 2. Replace the f ace-u p exit a sse m bly . 2 Is t here continui ty on the F[...]

Diagnostic Inf or m ation 2-1 9 5055-01x 981 - B elt Up/Do wn Senso r Err or 981 Se rvice Swi tch Err or Ste p Questions / Actions Ye s N o 1 Are connect ors CN409 a nd CN407 o n the senso r board connec ted prop erly? Go to step 2. Plug th e connec tors in secu rely . 2 Are connect ors CN26 an d CN29 on t he pri nter cont roller boa rd connec ted [...]

2-2 0 Ser vice M anual 5055-0 1x 98 2 - Sensor Contr o ll er Erro r 5 T est the sensor . While act uating the senso r , does the v oltag e fluc tu ate betwee n 0V and +5 V betwee n pins 8 and 10 of connect or CN29 on the printer contr oller boar d? Repla ce the belt u p/ do wn cl utch. Go to step 6. Replace t he bel t up/ down s ensor . 6 Did r epl[...]

Diagnostic Inf or m ation 2-2 1 5055-01x 983 - B lack Gear Senso r Erro r 984 - Y ellow G ear Senso r Erro r 983 Se rvice Gear S ensor Ste p Qu est ion s / Actions Ye s N o 1 Is connect or CN20 on t he pri nter cont roller boa rd connec ted pr operly? Go to step 2. Plug the connect or in secur ely . 2 Clean t he gear senso r . Does this fix the pr [...]

2-2 2 Ser vice M anual 5055-0 1x 985 - T ransf er Belt Ther m istor E rror 98 6 - T ranspar ency ( OHP) S ensor Er ror 985 Se r v i ce The r mis tor E rro r Ste p Questions / Actions Ye s N o 1 Are conne ctors CN407 a nd CN408 on the sens or board connec ted pr operly? Go to step 2. Plug the connector in secu rely . 2 Is conn ector CN29 on t he pri[...]

Diagnostic Inf or m ation 2-2 3 5055-01x 992 - T empera ture/Hu midity S enso r Err or 993 CPU Err o r Replace the pr inter c ontroller bo ard. 2 T est the sensor . Whil e actu ating t he senso r , doe s the v oltage fluct uate betw een 0V and +5 betw een pins 2 and 3 of conne ctor CN7 of t he pr in te r cont roller boa rd? Re pl ace t he p r i n t[...]

2-2 4 Ser vice M anual 5055-0 1x 99 4 - Densit y Sens or Err o r Step Questions / Actions Ye s N o 1 Are c onnector s CN406 and CN407 on the sensor board connect ed properl y? Go to step 2. Plug the c onnector in secu rely . 2 Is co nnector CN29 on the printer contr oller boar d connect ed properl y? Repla ce t he densit y senso r . Go to step 3. P[...]

Diagnostic Inf or m ation 2-2 5 5055-01x Atte ndance Mess ages g Mes sage Meaning Action Ac tivati n g Me nu Changes The pri n te r is ac tivati n g changes made to the printer sett ings. W ai t f or the message to cl ea r. Bin < x> Ful l The s pecif ied bin is ful l. Remov e t he paper from the bi n. Busy The p rinter is b usy r eceiving, pr[...]

2-2 6 Ser vice M anual 5055-0 1x Close Si de Door The print er si de door is open . Close the printer side do or . If th e error can not be reset, go to “ Map 1 - F alse “ Side Door Open ” Mes sage ” on page 2-43 . Close T op Door The print er to p door i s open. Close th e printer top door and fron t door . If the erro r cannot be r eset g[...]

Diagnostic Inf or m ation 2-2 7 5055-01x Disk Corrupte d Ref orm at? Th e printer has a ttempted a disk reco very process and cannot repa ir the disk. • Press Go to r eformat t he disk and de lete all f iles curr ently stor ed on the disk . • Press Stop to clear the mess age wit hou t ref or matting the di sk. Disk R eco v e ry x/5 yyy% Th e pr[...]

2-2 8 Ser vice M anual 5055-0 1x Held Jo bs M a y be Lost The prin ter mem or y i s too f ull . • Press Go to c le ar th e messag e. T he printer frees me mor y by deleting the oldest job and conti nues del eti ng jobs unt il ther e is enough m emory . • Press Stop to cl ear t h e messag e without deleting jobs . • Press Me nu t o ope n the J[...]

Diagnostic Inf or m ation 2-2 9 5055-01x Load <x > The p r inter i s trying to f eed paper from a source i t det ects is empt y . Load pa per of the si ze and type reque sted i n the secon d line of the dis pla y in the s pecified tra y . Press Menu to ope n the Job Men u and can cel the curr ent job . • If Load (T ra y) cannot be res e t, [...]

2-3 0 Ser vice M anual 5055-0 1x Network <x>, <y > An network inte rf ace i s the acti ve communi cati on li nk , where < x> repr esents t he acti ve link and <y> rep resents the c hannel. W ait f or the messag e to clear . No Jobs F ou nd, Retry? The PIN number enter ed is not assoc iated with an y confi dential j ob . • [...]

Diagnostic Inf or m ation 2-3 1 5055-01x Printing Fo nt List Th e printer is process i ng o r print ing a l ist of all av ailab le f onts f or the speci f ied printer lang uage. W ai t f or the message to cl ea r. Printing Job Account ing Stat The p rinter i s pr ocessin g or print i ng all job accoun ting stat istics stored on th e hard disk . W a[...]

2-3 2 Ser vice M anual 5055-0 1x Ready Hex The printer i s in He x T race mode and is read y to rec ei ve and proces s print jo bs • Send a job to print. All data i s print ed in hexa decimal . Control string s are pri nte d, not ex ecut ed. • T urn the p rinter of f an d then on to e xit He x T race mo de . Remov e P aper <specif i ed bin&g[...]

Diagnostic Inf or m ation 2-3 3 5055-01x T ray < x > E mp t y T he sp e c ifi e d t ray is ou t o f paper . Load paper in t he tray and tr y t o cl ear the m es sag e. If the mess age cannot be re se t, go to “ Map 4 - F alse “ T ray ( X) Low/Empty ” Mes sage ” on pa g e 2-45 . T ray <x > Low The sp e c i fi e d t ray is low of [...]

2-3 4 Ser vice M anual 5055-0 1x 30 Coating Rol l Mi ss in g The oil coating ro ll is either missi ng or installed inc o rre ct ly . Correc tly inst all the oil coati ng rol l. I f the messa ge cannot be r eset, go to “ Map 5 - Fal se “ 30 Oil Coatin g Roll Mis si ng ” Messa ge ” on page 2-46 . 30 <colo r > Print Unit Miss ing One or [...]

Diagnostic Inf or m ation 2-3 5 5055-01x 37 Insuf ficient De f r ag Me mory Th e printer cannot defr agment flas h memory . • De le te font s, ma c ro s, and ot her d ata in printer memor y . • Inst all addit io nal printer memor y . 37 Insuf ficient Memor y T he p r inte r mem or y is full a n d cannot cont inue processin g curr ent jobs . •[...]

2-3 6 Ser vice M anual 5055-0 1x 40 T ra y <x> Size Sens e Error The high capa city she et f eeder d etects an erro r in the siz e sensi ng mecha nism. • T urn off the printer and be sur e that all the hi gh capacit y f eeder connect ors ar e instal led properl y . • Check the h igh c apacity fe eder siz e sens or and go to “ Map 8 - F [...]

Diagnostic Inf or m ation 2-3 7 5055-01x 53 Unf ormatted Flash Th e printer detec ts unf ormatted flash memory . • Press Go to cl ear the mess age and con tinu e print i ng. • Fo r mat t he flas h mem o ry . If the e r ror re ma i ns, t h e fl as h memor y may be def ecti ve . 54 Serial Opti on <x> Er ror T he pr i nt e r h as de t ec t e[...]

2-3 8 Ser vice M anual 5055-0 1x 56 Para llel Por t <x> Disab led 56 Std Pa rallel Por t D is a ble d Data has been sen t to the printe r throug h a di sabled paral lel port. • Press Go to c le ar th e messag e. • Mak e sure t he P ara llel Buff er menu item in t he Paralle l M e nu is s et to Di sabl ed. 56 USB P ort <x> Disab led [...]

Diagnostic Inf or m ation 2-3 9 5055-01x 62 Disk Ful l Insu fficie nt memory on the hard di sk. • Press Go to clear the mess age and con tinu e print i ng. • De le te fonts, ma c ro s, and ot her data st ored on the har d disk . 63 Unf ormatted Disk Th e printer detects an unf ormatted hard disk. • Press Go to clear the mess age and con tinu [...]

2-4 0 Ser vice M anual 5055-0 1x 81 Engin e Code CRC Fai l ure Microcode in the engine fl ash code m odule has f ail ed a system chec k. Press Go to clear t he mess age and di scard the code. Retran sm it the microc ode data from the host comput er . 84 All Photo De vs Exhausted All of the phot ode vel oper s hav e re ached en d of lif e. Replace a[...]

Diagnostic Inf or m ation 2-4 1 5055-01x 84 Color Photo Dev s Exhaust ed The c olor photode veloper s hav e reac hed end of lif e . Repla ce the colo r phot odev elop ers (C yan, Mag enta a nd Y ellow ) a t th e same time. If pr in t qu a li ty is st ill accep tabl e and you do not w ant to replace the phot odev elop ers, pr ess Go to cl ear the me[...]

2-4 2 Ser vice M anual 5055-0 1x 88 <color> To n e r E m p t y The print er has cea sed operat ing beca use the specif i ed toner cartridge is empty . Inst all a new toner cartridge and go to “ Map 7 - Fal se “ 88 <Color> T o ner Low/T o ner Empty ” M essage ” on page 2-47 . 88 <color> To n e r L o w The print er has det e[...]

Diagnostic Inf or m ation 2-4 3 5055-01x Mainten ance Ana l ysis Pr ocedur es (MAP S) Ma p 1 - Fa l se “ Side Do or Op en ” Messa ge Ma p 2 - Fa l se “ Clos e T op Do or ” Me ssage Step Questions / Actions Y es No 1 Cl ose the side ( turn gui de) door . Does the message rese t? Prob lem sol ved. Go to st ep 2. 2 Di sconne ct CN30 from the p[...]

2-4 4 Ser vice M anual 5055-0 1x Map 3 - F alse “ C l ose T ra y (X) T op Cov er ” Message Step Questions / Act ions Y es No 1 Re mo v e the rear co ver on the high capaci ty p aper f eeder and observ e LED 9 on the HCPF card whil e actuati ng the cov er open m icr o-s wi tch. Does the LE D go on and off , while openi ng and closi ng th e door [...]

Diagnostic Inf or m ation 2-4 5 5055-01x Ma p 4 - Fa l se “ T ra y (X ) Lo w/Emp ty ” M essage Step Questions / Actions Y e s No 1 Is t he “ Tr a y X L o w ” m essag e present ? G o to s t ep 2. Go t o ste p 5. 2 Is the pape r r emaini ng actuat or insi de th e casse tte dra wer b indin g, or oper ating incor rectly? Go to step 3 . Repair o[...]

2-4 6 Ser vice M anual 5055-0 1x Map 5 - F alse “ 30 Oil Coati n g Roll Missin g ” Messa ge Map 6 - F alse “ < Color > Print Unit Mis sing ” Messa ge Step Questions / Actions Y e s No 1 Is t he OCR p roperly i nstalle d? Go to step 2 . Properly install the OCR. 2 Is t he OCR c ontact at the rear of t he f user da m aged or brok en? Re[...]

Diagnostic Inf or m ation 2-4 7 5055-01x Ma p 7 - Fa l se “ 88 <Co lor> T o ner Lo w/T one r Empty ” Mess age Step Questions / Actions Y es No 1 Ensu re th at the encoder locat ed at the rear of the tone r set is cl ean an d free o f di r t or paper dust . Is the encoder wheel cl ean and fr ee of dir t or paper dust ? Go to step 2. Clean [...]

2-4 8 Ser vice M anual 5055-0 1x Map 8 - F alse “ 40 T ray (X) Size Sensor E rro r ” Messa ge Map 9 - F alse “ 41 Open Bin 1 Exit T ra y ” Messa ge Step Q uestions / Ac tions Y es No 1 On the high capa city pape r fe eder , ar e the paper size adjust ing scr ews pr esent on the upper portion of the side fe nce and fully sc rewe d int o the [...]

Diagnostic Inf or m ation 2-4 9 5055-01x Map 10 - Unreco verab le “ Chec k T ra y (X) or Dupl ex Connect ion ” Me ssage Step Questions / Actions Y es No 1 Is the pr ob lem with a spec if i c paper tr a y or the duple x unit? Go to step 2. Go to step 8. 2 Is the pr ob lem with tra y 1? Go to step 3. Go to step 6. 3 Are c onnector s CN 35 and CN3[...]

2-5 0 Ser vice M anual 5055-0 1x 7 Exchange the e xpansi on f eeder con trol board f or the prob lem tra y with one abo ve or bel ow . Does th e sym pto m f oll ow t he exch anged card? Repla ce the def ec t ive e xpansio n f eeder con trol car d . Replace th e upper a nd lo wer expan sion paper f eed dra wer connecti ng cabl e assemb lies . 8 Are [...]

Diagnostic Inf or m ation 2-5 1 5055-01x Ma p 1 1 - Paper S iz e Map Step Questions / Actions Y es No 1 Do the paper siz e sens or actua tors on the paper oper ation tr ay oper ate corr ectly , as y ou sl ide the paper l ocation pla te? Go to step 2 . Replace par ts as necessary . 2 Do the siz e sensor le ve rs oper ate co rrectly ? G o t o step 3 [...]

2-5 2 Ser vice M anual 5055-0 1x Symp to m T a ble Symptom Act ion Y ou c annot pri nt col or. M ake sure the Color Correction men u item i s not set to Blac k & White . Mak e sur e the col or print uni ts are complet ely instal led in t he print er . Go to th e “ T ransf er Belt Up/ Down Servi ce Chec k ” on page 2-68 . T ra n s pa r e nc [...]

Diagnostic Inf or m ation 2-5 3 5055-01x Fu s er fa ilure . Go to the “ 920 - Fuser Er r or - Fuser Heate r T roub le ” on pa ge 2-7 . No paper pic k-up fro m multi purpose tra y . Go to th e “ P a per Carry ing Serv ice Chec k ” on page 2-58 . No paper pic k-up from u pper or low e r casset tes. Go to th e “ P a per Carry ing Serv ice Ch[...]

2-5 4 Ser vice M anual 5055-0 1x Eve nly s paced marks o n the paper , or a singl e mark in the same plac e on e very page . Go t o th e “ Marks on P a pe r Servi ce Ch ec k ” on page 2-66 . P oor fus ing. Go to the “ 920 - Fuser Err or - Fuser Heater T ro ubl e ” on page 2-7 . T oner scatte r on fro nt or ba ck o f paper . Check the fo llo[...]

Diagnostic Inf or m ation 2-5 5 5055-01x Se r vi ce C hecks Drive 1 DC Motor Se rvice Check Drive 2 Steppe r Motor Ser vice C hec k FRU Action 1 • DC Motor • Driv e Unit 1 • Printer Cont rol ler Board If t he motor do es not at tempt to turn and yo u rec eiv e a 910 error code , repl ace th e driv e r 1 dc motor . Be sure the toner and phot o[...]

2-5 6 Ser vice M anual 5055-0 1x Duple x Serv ice Chec k Expa n s io n Pap er Fee d S er v ic e C h e ck I f yo u ha v e a “ 200 P ape r Jam T ra y (X) ” error code, check the option connection cable f or proper connection to the printer or other paper f eed er . FRU Actio n 1 Feed Rolle r Belts Chec k f or wear or damage to the f eed roller be[...]

Diagnostic Inf or m ation 2-5 7 5055-01x Face - Dow n St a cker F u ll S er vi c e Che ck High Capacity P aper F eed (HC PF) Serv ice Chec k FRU Action 1 S ta cke r F u ll Detect ion L ev er Check the st ack er f ull det ection le ver for damag e. 2 • Stack er Full Detection Sensor • Printer Cont rol ler Board Check f or a volt age fluctua tion[...]

2-5 8 Ser vice M anual 5055-0 1x Oper ator P anel Service Chec k When you replace the PC dr um uni t, all three colo r uni ts must be replaced at the sam e tim e . P aper Carrying Servic e Chec k P ap er ha s not exite d or i s sto pp ed in th e hi gh cap a ci t y pa per feeder (Area F , 249). FRU Actio n 1 • Opera tor P anel • Opera tor P anel[...]

Diagnostic Inf or m ation 2-5 9 5055-01x Paper is being p icked up a nd carrie d to the registrati on roller (Areas C , E, 240, 24x). FRU Action 1 • Pa per S iz e Guide • Side Lo cation Plates Be sure the paper cas sette has the si ze gui des and the si de locator lo cks are wo rki ng pro perly . Replac e parts as ne cessary . 2 • P ap er Fee[...]

2-6 0 Ser vice M anual 5055-0 1x P ap er has sto pped at the registration r oller or has not reached the fuser (Area s C, E, 2 40, 24x ). P ap er has exi ted the registrati on roller and entered the fuser (Areas A and B). FRU Actio n 1 • Re gi st ra ti on Roll er Cl utc h • Re gi st ra ti on Ro ller • T ransf er Be lt Unit • Re ar Pape r Fe[...]

Diagnostic Inf or m ation 2-6 1 5055-01x Paper has entered the fuser and e xi ted the printer (Area B). FRU Action 1 Fuser Rem o ve an y toner b uildup and repl ac e any worn or damag ed parts. 2 • Fuser Exi t Lower Roller • Ex it Gu ide • FU/FD Flap Solenoi d • Exit Flap Clutch Le ver • Gears • Fuser Exi t Upper Rol ler Be sure the ex [...]

2-6 2 Ser vice M anual 5055-0 1x P aper ha s e nter ed t h e dupl ex unit (Ar ea D) . FRU Actio n 1 Feed Rolle rs Belts Check f or wear or damage to f e ed roll ers and belts . 2 Duplex Uni t Be sure t he duple x unit is prope rly install ed and th at all conn ections are co rrect . 3 • Duple x Stoppe r Motor • Side F ence Steppe r Motor Be sur[...]

Diagnostic Inf or m ation 2-6 3 5055-01x P aper Exit, FU/FD S er vice Chec k P aper T ra y Missing Service Ch eck FRU Action 1 FU/FD Sensor Actuat or If the paper is not e xiting to the bac k paper f ace-up tr ay or t he f ace-d own tra y , chec k the sensor f or proper oper ation by checki ng fo r Check f or a flu ctuation of betw een 0V and +5 V [...]

2-6 4 Ser vice M anual 5055-0 1x Pho todeve loper Mi ssing Service C hec k When you replace the photodev eloper unit, all three c olor units must be replaced at the same time. FRU Actio n 1 Photodev elop er Check f or dir t or da mag e to t he sen sing cont acts on rear . Clean or replace the photo de ve loper drum unit if neces sar y . 2 Sub- fr a[...]

Diagnostic Inf or m ation 2-6 5 5055-01x P o wer Supply Service Check FRU Action 1 V oltage Be sure the s w i tch is on and the pow er cord is firmly pl ugged i nto the print er. Be s ure t he cor rect vol tage is present at the outlet . 2 P o wer Cord Check th e pow er cord f o r conti nui ty . 3 • Fuse • Switch • P o w er Suppl y 1 The pow [...]

2-6 6 Ser vice M anual 5055-0 1x Mark s on P aper Service Ch eck If you h av e ev enly spaced m arks o n t he paper, measure the distance between the mar ks and locate the symptom below . Check the assem bly f or dirt or damage a nd cle an as neces sar y . Run a test print to v er ify the problem has been corrected. The indicated assemblies are r e[...]

Diagnostic Inf or m ation 2-6 7 5055-01x Fuser Part Lo cations mm Fr om Paper Center Thermist or Hot Roll -6 Thermist or BUR 0 TCO Hot Roll 66 TCO BUR 101 Detac t Fingers Hot Rol l 113.5/ 75/37.5/0/ - 37.5/-75/ -113.5 Detac t Fingers BU R 134/9 0/45/0/- 45/-90/- 134 Exit Ro ll er s 96/37. 5/-37.5/ -96 Star Rollers 127/60/ 15/-15/- 60/-127 Ser v ice[...]

2-6 8 Ser vice M anual 5055-0 1x T r ansf er Belt Up/Down Service Chec k FRU Actio n 1 Bel t Up/Do wn Sensors Belt Up/Dow n Actuato r Check the tran sfe r b elt up /do wn senso r . Be sure that connect or CN29 is fi r mly connec ted t o the pri nter contro ller board . Replace the sens or or the actuat or if nec essary . Check fo r a fluct uati on [...]

Diagnostic Inf or m ation 2-6 9 5055-01x I mage Qual ity T r o ubles hoo tin g Print Qu ality Pr oblems Probl em Action Print is too li ght, or pri nt ed images or ch aract ers h av e v oids or dr opouts . Be su r e you ’ re usin g recommend ed paper or oth er media. Use media fr om a ne w pac kage . Be sure y ou hav e selec ted the cor rec t P a[...]

2-7 0 Ser vice M anual 5055-0 1x Colored lin es, st rea ks, or smudg es appea r on the printed page, or print appear s blu rr ed or unclear . Replace the phot ode vel oper s. If the prob lem only occ urs when printing b lack , you can replace j ust the b lac k photoc onductor and fus er coating rol l . If the prob lem occu rs when printing one of t[...]

Diagnostic Inf or m ation 2-7 1 5055-01x Light lines or s treaks ap pear on the prin ted page. Clean the LEDs. Mak e sure t he aff ec ted photod ev el oper is com pl etely inst alled in th e print er . Remo v e t he af fe cte d phot odev elop er and gent ly shake it ba c k an d f ort h to dist ribut e the t oner e v enly . Reinsert the print unit a[...]

2-7 2 Ser vice M anual 5055-0 1x T oner adheres t o the back of the page. Rem o ve the fuser oil rol l and wipe it wi th a dry , li nt-fre e cloth, and c lean the tra nsf er belt. If the re still is a pro b lem, go to “ P eri odic D irt ” on pa g e 2-76 . Qualit y of pri nt ed trans par encies is i nadequate. Be sure y ou ’ r e using th e rec[...]

Diagnostic Inf or m ation 2-7 3 5055-01x No Image Po ssi b le C au s e Act ion Moist P aper Be sure th e printer is not in a dam p env ironment and the paper is not c urled or wa vy d ue t o mois ture . If ne cessar y i nf or m th e custom er about corr ect s t orag e. LE D Pr inthead Be su re th e LED print head ca ble is secur ely c onnected t o [...]

2-7 4 Ser vice M anual 5055-0 1x Blac k Line Blac k Print Possible Cause Action Photode veloper Drum Clean any d ir t fr om the drum surf ace. Replace it if i t is scr atched. Fuse r De t ach Pa wl Fuse r Rol ler Surf ace Fuser Thermis tor Surf ace Remo v e any toner b uildup . Replac e th e fus er . LED Printhead Clean the LED printhead. Print a b[...]

Diagnostic Inf or m ation 2-7 5 5055-01x Missing Co lors Po ssi b le C au s e Act ion T oner Car t ridge Uni t Be su re th e tone r car tridge a nd the PC drum unit ar e prope rly seated. Be sur e t he conta cts on t he p rint un it are cl ean. Be sure the print uni t i s inst alled in t he cor rect posit ion. Run a pr in t te s t. If the pro bl em[...]

2-7 6 Ser vice M anual 5055-0 1x Un e ven Pr int ing P eriodic Dirt Wh ite Spots Possible Cause Action Photoco nductor Drum Check for condensat i on or di r t on th e photoco nductor drum. LED Printhead Clean an y dir t off the e x posed surf ace of the LED printhea d. Also c h eck t h e lo c a t in g pi ns of the printh ead. T ransf er Belt Unit B[...]

Diagnostic Inf or m ation 2-7 7 5055-01x Options S er vice Chec k Ser v ice Tip: Wh en you hav e a probl em with an y of the options installed in the options slots on the interconnect board, s witch the non operating option to one of t h e other option slots to isolate the failu re. Serial P o rt Ser vice Check Run t he “ Serial Wrap T es ts ” [...]

2-7 8 Ser vice M anual 5055-0 1x Har d Disk Op tion Ser vice Tip: The 5055-01x pri nters suppor t one hard disk option. Be sure o nly o ne 3 .2 GB or la rger on e ha rd disk option is i nstalled. Be sure the fix ed disk and the fix ed disk board are correctly installed. Run the “ Quick Di sk T est ” on pa ge 3- 17 f rom th e De vice T est on th[...]

Diagnost ic Aids 3-1 5055-01x 3. Diagn ostic Aids Note: Whe n trouble shoo ting, or prior t o making any ad justment t o pr int quality , alwa ys be sure of th e f ollowing: • The p rinter is i nstalled on a lev el r igid surf ace. • The OP Cs a re nev er e xchanged. Do not ex cha nge a blac k O PC f o r a color OPC, as they ha ve diff erent su[...]

3-2 Service M anual 5055-0 1x Using the Operat or P anel The ope rator panel on your prin ter has a 2-li ne by 16 -character liquid cr ystal displa y (LCD), fiv e buttons , and one indicator light. The light i n dicates whether the printer power i s on and whether the pr in ter is id l e o r b usy pr oces si ng a j o b . Indi cat or Lig ht Use the [...]

Diagnost ic Aids 3-3 5055-01x Operator Pan el Bu ttons Button Funct i on Go Press Go to: • Exit printer menus and r eturn the p r inter to the ready stat e. • Clear certain messages f rom the displa y . If y ou ’ v e change d printer setti ngs from the ope rator panel menus , press Go bef ore yo u send a job to print. Menu > and <Men u [...]

3-4 Service M anual 5055-0 1x Pri nti ng the Menu Setti ngs 1. F rom the printer operator panel, press Me nu to en ter t h e m e nu s. 2. C ontinue to press and release Menu until you s ee TESTS MENU . 3. Press Se l e ct . TESTS MENU is displa yed on the first l in e, and Print Menus i s on the s econd line . 4. Press Se l e ct a gain to pr int t h[...]

Diagnost ic Aids 3-5 5055-01x JOB MENU Re s e t P r in te r Cancel F ax Confide ntial Job Held J ob SETUP MENU Printer Langua ge Printer Usage Po w e r S a v e r Resou rce Sav e Downlo ad T arget Print Timeout A ut o C onti n ue W ait Timeout Jam R ec ove r y P age Prot ect Displ a y Language Alarm Control Job Account ing Job Acct Li mit PCL EMUL M[...]

3-6 Service M anual 5055-0 1x Di ag no st ic Mo de T o acces s the diagnostics prin ter settings and operations: 1. T urn of f the pr inter . 2. Press and hold Go an d Return . 3. T ur n on the pr inter . Release the butt on s after t h e Perf orming Sel f T est message displays . Sett ing Prin ter Ali gn men t The A lignme nt m enu is form atted s[...]

Diagnost ic Aids 3-7 5055-01x must print the Alignm ent T est page. F ro m the Alignm ent screen con taining each of the alignment values, p re ss Go . This button serves a s a ho t ke y to t he al ignment (X= sxxx* Y= sxxx* T= sxx x*) test page. While the p age prin ts the P ower i ndicator blinks and th e foll owi ng mess age displays: No b u tto[...]

3-8 Service M anual 5055-0 1x Pri nt T ests Input Source P rint T e sts The Diagnostic Input Source Prin t T est s may be used to v er ify that the printe r can pri nt on m edia from the installed input sourc es, which are avai l able within the P r int T ests menu. Chos e from foll owi ng: • Singl e (pr ints the Print T est page once). • C ont[...]

Diagnost ic Aids 3-9 5055-01x Note: <in put source> represent s the input source selected for t h e Pr int T est. O ne of t he foll owi ng sources is di splay ed: T r a y 1, MP Feeder , Sta ndard Bin (F ace-Down), or O utput Bin 1 . The value of the <me dia width> field is displa yed when the n arrow media sensor deter mine s the m edia[...]

3-1 0 Ser vice M anual 5055-0 1x Har dware T ests LCD Hard ware T est The LCD Hardware T est causes the printer to continually ex ec ute the LC D di spla y test. T o cance l the test, press Return or Stop . Button T e st The Bu tton T est is used t o verify the ope ration of each button on t he operator panel. When Button T es t is selected, the f [...]

Diagnostic Aids 3-1 1 5055-01x DR A M Me mor y T e s t The DRA M M emor y T est is used to check the validity of DRAM (both standard and optiona l). P atter n s of data are written t o DRAM verifying each bit in memor y can be set and read correctly . When this test is selected from the ope rator p anel, the pri nter beg ins testing DRA M memo r y [...]

3-1 2 Ser vice M anual 5055-0 1x ROM Me m o r y Tes t The ROM Memor y T est is used to c heck the validity of the RI P code and f onts. When this test is selected from the operator panel, the printer beg ins testing ROM m em or y and the fol lowing screen disp la ys. Te r m i n o l o g y : P:###### repres ents the number of times the memor y te st [...]

Diagnostic Aids 3-1 3 5055-01x Pa r allel W r ap T est The Par a llel Wrap T est checks the operation of each paralle l signal, using a wrap plug. T o perform the wr a p test, f ollow these steps: • Disconne ct the parallel i nterface cable, and install the paral l el wrap plug. • Sel ect HA RD W ARE TESTS from the Di agnostics M enu. • Sel e[...]

3-1 4 Ser vice M anual 5055-0 1x If the test f ail s, the F ail Count increments by one and one of the f ollowing f ai lure messages disp la ys f o r approx imately three seconds: Sync Busy Error , By t e Interrupt Reque st Error , Strobe Interrupt Request Error , Init F all Error , Init Busy Error , I nit R ise Error , Host Busy Err o r , RAM Data[...]

Diagnostic Aids 3-1 5 5055-01x Serial W rap T ests The Se rial W rap T e st is used to c heck the e ac h signal of t he ser ial por t hardware, using a wr ap plug. T o perform the wrap t e st, f o llow these step s: • Disconne ct the serial interf ace cable, and install the serial wrap plug. • Sel ect HA RD W ARE TESTS from the Di agnostics M e[...]

3-1 6 Ser vice M anual 5055-0 1x Once the maximum pass count or f ail count is reached, the test stops and final test results displa y: Receive St at us Interrup t Error , Status Error , Receive Data I nterrupt Error , T ransmit Data I nterrupt Error , T ransmit Empty Er ror , Threshold Error , Rece iv e Data Ready E rror , Br eak Interrupt Error ,[...]

Diagnostic Aids 3-1 7 5055-01x De vice T ests Qu ic k D isk T est The Qui c k Disk T es t performs a n on-destr uctive read/wr ite on one bloc k per track on the disk. The fol lowing message displ a ys while the test i s runnin g : The P ower in dicator b l inks while the test is in progress. If the test is success ful, the following mes sage displ[...]

3-1 8 Ser vice M anual 5055-0 1x Di sk T e st /Cl ea n The Disk T est/Clean T est causes the disk to be f ormat ted, destro ying all data on the di s k and sh ould not be attempted on a good disk. This te st should o nly be used when t he disk contains unusable dat a. Note: This can be an extremely leng th y test de pendin g on the disk size, and l[...]

Diagnostic Aids 3-1 9 5055-01x Flas h T est The Fla sh T e st writes and reads data to the f lash device , destroying all data, leaving t he flash unformat ted. The ser vicer must ref or m at the flash u sing the Form at F lash menu operat ion. T o r un this t est, select Flash T est from the DEVICE TES TS menu. The f ollowing mes sage dis pl ays w[...]

3-2 0 Ser vice M anual 5055-0 1x Dia gnostics - Prin ter Setu p Defaults The f ollowing printer settings are used to determ ine whether U.S or non-U. S . factory def a ults should be used: • = U . S . * • = Non U .S . Ligh t Q ua n tity • Cy a n • Mage nta • Y e llow • Blac k Range = 0 to 45 If you replace one or more of the printheads,[...]

Diagnostic Aids 3-2 1 5055-01x Pa r S Str o be Ad j Note: This mess age disp la ys only if the pr inter is con fused with th e standard parallel por t. Par 1 St r o be Ad j Note: Th is message displays only if a par allel por t is a vailable through the PCL slot 1. Au to C o l or A dj • = On * • = OFF Reset Ca libration Press Select t o reset. [...]

3-2 2 Ser vice M anual 5055-0 1x Vie win g and Re sett ing th e Drum Counte rs The drum coun ters increment when a page is printed . The drum counter for a par ticular p lane increments (if that c olor is pr inted), by 1 f or Letter , A 4, A5, B5 and en velopes, and b y 1.2 f or Le gal and B4. It increments by 2 f or 11 x 17 and A3. Th e count ers [...]

Diagnostic Aids 3-2 3 5055-01x Setting the P age Count The page count can be changed th rough the Diagnostic menus. This menu is used by the ser vi ce r to reset the Page Count whene ver the engine board, c ontain ing NVRAM mem or y , is replaced. Whe n Pa ge Count is selected from the PRINTE R SETUP menu, the current page co unt display s as fol l[...]

3-2 4 Ser vice M anual 5055-0 1x Sett ing Conf ig ur a t io n ID The Configuration ID is used to communicate character istics of the printer that canno t be deter min ed by t he hardware sensors. The Configuration ID is originally set whe n the printer is manuf actured , b ut must be reset whene ver t he engine board, con taining NVRAM memo r y , i[...]

Diagnostic Aids 3-2 5 5055-01x Diag nostic s - Er ro r Log Vie wing th e Err or Log The Error Log provides a hi s tor y of printer errors, containi ng the 12 most recent errors that ha ve occurred on the printer . The most recen t error dis p lays in position 1, and the oldest error display s in pos ition 12. If f ewer t han 12 errors ha ve o ccurr[...]

3-2 6 Ser vice M anual 5055-0 1x Cle arin g the E rror Log T o clear the error log, sel ect Cle ar Log f rom t he E RROR LOG menu. The printer displays the foll owing message: Sel ect Ye s to clear t he log , as the empty log messa ge displays as fo l l o w s : Sel ect No , Retu rn or Stop to e xit the Clear Log m enu. Ma in te na n ce Menu Exiting[...]

Repair I nf or mat ion 4- 1 5055-01x 4. R e p a ir In fo r m a ti on Service Pr ecautions Obs er ve the f ollowing precautions whenev er y o u ser vice t he printer : • Be sure to unplug the printer from the outlet bef ore attempt ing to ser vi ce t he prin ter . • T o reassembl e the printer , re verse t he order of disassem bly unless otherwi[...]

4-2 Service M anual 5055-0 1x Ha nd lin g P rin te d C irc uit Boa rds The f ollowing precautions must be obser ved when handling circuit boards with metal o xide semicon ductor integrated circuits. T ranspor tation/Storage: • D uring transpor t ation or when i n st orage , new circuit boards must not be indiscrimin ately removed fr o m their pro[...]

Repair I nf or mat ion 4- 3 5055-01x Adju stmen ts High Capa city P aper F eed Tim ing B elt A djustm ent 1. Secure the brack et with t he screw , as shown. 2. Attach the spr ing and washer to the br a ck e t with the screw . 3. Adjust the screw to 6mm +/ - 1mm. 4. Tighten the screw c om pl etely . 5. Adjust t he timing b elt on the rear in the sam[...]

4-4 Service M anual 5055-0 1x Remov als Co ver , T op Remov al 1. R emove the operator pan el. 2. R emov e fiv e screws from the b ottom, th e four screws from the back side, and t he scre w from the l eft side. Oper ator P anel Remo v al 1. Open t he top unit and remove the toner car tridge s and phot oconduct or dr um un its. 2. R emove the opera[...]

Repair I nf or mat ion 4- 5 5055-01x Cov e r , Fron t Re m oval 1. Remov e t he four hi nge sc rews from the front c over . 2. Remov e the fr ont cover Ser vi ce .b k Pa g e 5 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

4-6 Service M anual 5055-0 1x Co ver , Fr ont L eft 1. Open t he front cov e r and remove the cas sette. 2. Remove the left front co ver b y removing the three scre ws. Co ver , Rear Remo val 1. Open t he top unit. 2. R emove the three screws from the rear c over , and remov e the cov er . Ser vi ce .b k Pa g e 6 T hu r sd ay, O c tob er 4, 20 01 1[...]

Repair I nf or mat ion 4- 7 5055-01x Cover , Solenoid Remo val 1. Remov e t he screw from the solenoid co ver . 2. Remov e the sol enoid cov er . Cover , Left S ide Remo val 1. Remov e the u pper cassette, front cov er , pa per exit tra y , an d duplex unit. 2. Remov e the f iv e screws from the left si de cov er , and remov e the co ver . Ser vi c[...]

4-8 Service M anual 5055-0 1x Co ver , Rig ht Side Remo val 1. Open t he top unit and remove the front cov er and upper cassett e. 2. R emov e the sev en s crews from t he right side c ov er together w ith the turn gui de, and rem ov e the cov er . 3. W hen inst alling the ri ght side cov er , inser t the turn gui de shaft into the bear ing. Ser vi[...]

Repair I nf or mat ion 4- 9 5055-01x Cover , RIP Board Rem oval 1. Loosen the eight scre ws and remove t he RIP co ver b y sliding upward. 2. Remov e t he three har nesses and one flat cable of the RIP board conne ctor . 3. Remov e the t wo scre ws from the parallel por t connec tor and the screw from t he USB conne ctor . 4. Remov e t he eight scr[...]

4-1 0 Ser vice M anual 5055-0 1x T r ay , P aper Exit Rem ov al 1. U nlatch the hinge at t he back side, then unlatch the h inge on the front side. 2. R emove the pape r e x it tra y . Ser v ice .bk Page 1 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-1 1 5055-01x RIP Box Rem o val 1. Remov e the five screws from the R IP b ox . 2. Slightly lift and rem ov e the RIP box. Electronic Bo x Remo val 1. Op en the top u nit and rem ov e the b ack cov er , f ront c ov e r , cassette, turn gui des and r ight side cover . 2. Remov e t he screws from the electronic bo x. 3. Disconn[...]

4-1 2 Ser vice M anual 5055-0 1x LED Printhead Remova l 1. Open t he top unit, remov e the top cov er , toner car trid ges and phot oconduct or dr um un its. Note: Remove the transf er belt, or sprea d a cloth o r pap er ov er the transf er belt to protect it from damage. 2. R emove the screw from the pri nthead holder , a nd remove the holder . 3.[...]

Repair Inf or m ation 4-1 3 5055-01x 5. Remov e t he f our co nnecto rs from LED printhead . 6. Remov e t he two scre ws from the ground wires . W hen replacin g the LED printhead , replace the corresponding EEPR OM shi pped wi th the printhead, on the pr inthead controller board. Place the pr inter in Diagnostic Mode , input the pr inthead light q[...]

4-1 4 Ser vice M anual 5055-0 1x Era ser Remo val 1. R emov e the approp riate pri ntheads. Spread a cloth o r pap er over the transf e r belt to protect i t from damage. 2. R emove the two screws from HSP holder , and remo ve the holder . 3. R emove the top c over . 4. D isconnect the connecto r (see arrow). 5. R emove the eraser . Ser v ice .bk P[...]

Repair Inf or m ation 4-1 5 5055-01x Pri nthe ad Co ntr oll er B oard R emo val 1. Remov e t he top cov er . 2. Remov e the 2 0 p rinthead cont roller board conne ctors. 3. Remov e the 10 screws from the pri nthead cont roller board, and remov e th e board. Note: Whe n replacing the board, be sure to return the f our EEPR OMs on the f or mer boa rd[...]

4-1 6 Ser vice M anual 5055-0 1x Up per F an R emo v al 1. Open t he top unit and remove the toner car tridge s and phot oconduct or dr um un its, top cover , a nd face-down gu ide as se mb ly . 2. R emove the f our screws an d the five screws from the upper b ra cket , a nd r em ove th e b ra cke t. 3. R emove the two screws from the lef t fan, a [...]

Repair Inf or m ation 4-1 7 5055-01x M ul t i - Pur p o s e F eed e r T ray R em ova l 1. Op en the top u nit and rem ov e the f ront cover , ca ssette feeder , tur n guides and rig ht side cov er . 2. Open t he multi-pur pos e f eeder and s lide it toward the magne t in the direction of the arrow , removing it fr o m the printer. Ser v ice .bk Pag[...]

4-1 8 Ser vice M anual 5055-0 1x Pa p e r Fee d Roll e r R emoval 1 . R e mo ve th e fr o nt c over. 2. R emove the m anual paper f eed t ra y . 3. R emove the ri ght side cov er and turn guide. 4. R emove the uppe r cassette. 5. R elease the clutch and until the paper f eed roller scre w is visible. T ur n the paper f eed roller , and remove the s[...]

Repair Inf or m ation 4-1 9 5055-01x P aper P resent S ensor Remo va l 1. Open t he pape r f eed cover and pul l out the d uplex unit ha lfwa y . 2. Unclip the paper present sensor from the mounting. 3. Disconne ct the connector and remove the s ensor. Ser v ice .bk Page 1 9 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-2 0 Ser vice M anual 5055-0 1x P aper Fe ed Frame Remo val 1. Open t he top unit and remove the RIP board cov er , RIP board, R IP box, and electronic b o x. Open th e tur n guide and paper feed co ver and pull out the dupl ex unit halfw ay . 2. R emove the belt unit . 3. D isconnect the connect or and remove t he three screws, and the screw from[...]

Repair Inf or m ation 4-2 1 5055-01x Casset te Guide R emov al 1. Remov e t he paper f eed frame. 2. Remov e the fr ont cover , cassette, tur n guide, ri ght side cov er and pap er feed frame. 3. Remov e t he screws from the cassette guide, and remov e the guide. Ser v ice .bk Page 2 1 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-2 2 Ser vice M anual 5055-0 1x T emper ature /Hum idit y Sens or R emo val P a per Fe ed So lenoid Remo val 1. Open t he top unit and remov e the RIP cov er , RIP board, RIP box, and electronic bo x. 2. R emove the sc rew f rom the temperature/humi dity sensor , and remove the sensor . 3. R emove the two screws from the paper f eed soleno id brac[...]

Repair Inf or m ation 4-2 3 5055-01x Gear Co ver Re mov al Multi-P urpose Fee der Roll Remo v al M ul t i - Pur p o s e F eed e r Cl u tc h Re m o val OHP Detect io n Sensor (Upp er) Remo va l 1. Op en the top unit, and remov e the upper cassette, front cov er , multi-pur pos e feeder , righ t side cov er , and tur n guide. 2. Remov e t he two scre[...]

4-2 4 Ser vice M anual 5055-0 1x 6. R emov e the sc rew from the OHP dete ction sensor (upper). 7. T ur n the bear ing stopper of the multi-pur pose feeder roll f orward 1/4 tur n an d rem ov e upward. 8. R emove the C-clip and remove t he multi-pur pose feeder clutch. Note: After rea ssembling t h e compon ents, coat the cont act areas of the mult[...]

Repair Inf or m ation 4-2 5 5055-01x Fann i ng P a d R em oval 1. Op en the top u nit and rem ov e the u pper cas sette, front cov er , tur n guide, multi-pur pose feeder , right side cover , and multi- pur pos e feeder roll. 2. Release c lips at 4 po sitions an d remove the fanning p ad. Ser v ice .bk Page 2 5 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-2 6 Ser vice M anual 5055-0 1x Reg ist ration Senso r Re mo va l 1. Open t he top unit and remove the upper cas sette, front c over , tur n guid e, multi-purpos e feeder , right side co ver , and multi- pur pos e feeder fr am e. 2. D isconnect the connector of t he registrat ion sensor and remov e the sensor. Ser v ice .bk Page 2 6 Thur sday, Oct[...]

Repair Inf or m ation 4-2 7 5055-01x Multi-P urpose Fee der P aper P resen t Sens or Rem ov al 1. Op en the top u nit and rem ov e the u pper cas sette, front cov er , tur n guide, multi-pur pose feeder , right side cover , turn guide, and mu lti-pur pose feeder frame. 2. Disconne ct the conn ector and rem ov e the multi-purp ose feeder paper pres [...]

4-2 8 Ser vice M anual 5055-0 1x P aper Carrying F rame Remo v al P aper Carryin g Roller (Upper ) Remo va l P aper Carrying Clutch Remov al OH P De tec t i on Sens or (L ow er ) Rem oval 1. Open t he top unit and remove the upper cas sette, front c over , tur n guid e, multi-purpos e feeder , right side co ver , turn guide, OHP de tection s ensor [...]

Repair Inf or m ation 4-2 9 5055-01x Re g ist ra t ion Fr a me , Re gi s t ra t ion C lut ch R em oval 1. Op en the top unit, open the turn guide, open the paper f ee d cov er and pull out the duplex unit halfwa y . 2. Remov e t he two scre ws from the registration frame. 3. Remov e t he registration clutch. Note: Whe n i nstalling, set the clip of[...]

4-3 0 Ser vice M anual 5055-0 1x T r ansf er Belt Remo val T o replace the transf er belt bef ore the Lif e Warn in g or Ex haust ed messag es appear, open the supplies menu on the operator panel and select R eplace S upplies, sel ect Belt, an d select Replace Now . If th e 80 T ran sfe r Belt Life W a rning or Exhaus ted mes sage appears on the di[...]

Repair Inf or m ation 4-3 1 5055-01x 3. Loosen the thumbscrews as shown. Ser v ice .bk Page 3 1 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-3 2 Ser vice M anual 5055-0 1x 4. Lift and remove the transf e r belt cov er . 5. Loos en the thum bscrews as shown. Ser v ice .bk Page 3 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-3 3 5055-01x 6. Pull the transf er belt out. 7. After replacing t he transfer belt a nd removing the four ship ping spacers, tigh ten the t ransfer belt thum bscrews and rei nstall the transfer belt cov er . 8. Close th e top u nit and rotate the loc king le v er to the ri ght, close the front cov er. 9. T ur n the printe r [...]

4-3 4 Ser vice M anual 5055-0 1x Belt Up/Do wn Detection S ensor Remo v al 1. Open t he top unit and remove the waste toner bottle and belt uni t. 2. R emove the belt up/ down detection sensor from the moun ting board. 3. R emove the connect or from the belt u p/down det ection sensor. Ser v ice .bk Page 3 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-3 5 5055-01x Se nsor Bo ar d Rem ov al 1. Remov e t he transf er belt unit. 2. Remov e t he f our co nnecto rs. 3. Remov e t he three screws f rom the waste toner fu ll sensor board . Ser v ice .bk Page 3 5 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-3 6 Ser vice M anual 5055-0 1x De nsi ty Sen s or Rem oval Sepa r at ion Fi n g ers R emoval Sen sor Clean er Remo v al 1. Open t he top unit and remove the belt unit. 2. R emove the th ree screws from the sensor br acket. 3. R emove t he har ness band and rem ov e the t wo screws from the dens ity sensor from the sensor brack et. 4. R emov e the[...]

Repair Inf or m ation 4-3 7 5055-01x P rin te r Co nt roll e r Re moval 1. Open t he top u nit and remove the RIP cover , RIP board, RIP box, and el ectronic box. 2. Remov e the con nec tors and the ei ght s crews from t he printe r controller . Note: Whe n replacing the board, install the EPROM (U5) o f the forme r board to the ne w board . Also ,[...]

4-3 8 Ser vice M anual 5055-0 1x High V oltage P owe r Supply Boar d (HVU) Rem ov al 1. Open t he top unit and remov e the RIP cov er , RIP board, RIP box, electronic box, a nd p rinter controller board. 2. R emov e the five screws from t he pr inter controller board b ra cket . 3. R emov e the connec tors and rem ov e the 1 2 scr ews . 4. R emove [...]

Repair Inf or m ation 4-3 9 5055-01x R S u b Fr am e Rem oval T on e r Re ma in in g S e ns or Re mov a l Dr um G ea r Se nsor R e moval 1. Open the top unit, and remov e the RIP cov er , RIP board, RIP box, ele ctronic box, pr inter controller , prin ter controller brac ket, and hig h voltage power s upply boa rd. 2. Remov e the two scre ws f rom [...]

4-4 0 Ser vice M anual 5055-0 1x Sub F r a me F1 , Su b F ra m e F 2 Re m oval 1. Open t he top unit. 2. R emove the two screws from the sub fr am es F1 and F2. Note: Spread a paper or cloth ov e r the belt to protect t he belt. Set the sub frame F t o t he position of the f ollowing colors depending on presence of upper detection button. • Mage [...]

Repair Inf or m ation 4-4 1 5055-01x Drive Gear Unit S ensor Assemb ly Rem ov al 1. Open t he top u nit and remove the g ear cov er , RIP cover , RIP board , RIP bo x, electronic box , prin ter controller , and high vol t age power supply board. 2. Remov e t he screw fr o m the drive gear unit sens or ass em bly . 3. Remov e t he two scre ws of the[...]

4-4 2 Ser vice M anual 5055-0 1x Belt Up/Do wn Clutch Remo val 1. Open t he top unit and remov e the RIP cov er , RIP board, RIP box, and electr o nic bo x. Remove the pri nte r controller . Remove the pr inter controller brack et and the high vo ltage power supply board. 2. R emov e the C-clip from the be lt up/down clu tch, an d remove the clutc [...]

Repair Inf or m ation 4-4 3 5055-01x P o wer Supply 1 Remov al 1. Open t he top u nit and remove the RIP cover , RIP board, RIP box, and electroni c bo x. Rem ov e the casset te, left f ront cov er , and back co ver . Remov e the left side cov er . 2. Remov e the i nsulation sheet con nector , t wo ground wires, fiv e scre ws , two scre w s wit h w[...]

4-4 4 Ser vice M anual 5055-0 1x P ow e r Su pp ly 2 R e m oval 1. Open t he top unit and remov e the RIP cov er , RIP board, RIP box, and electronic bo x. 2. D isconnec t the connecto r and remov e the sev en scre w s from P ower Supply 2, and rem ov e the p ower supply . Ser v ice .bk Page 4 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-4 5 5055-01x Drive Motor Assembly Re m ov al 1. Open t he top u nit and remove the RIP cover , RIP board, RIP box, and el ectronic box. 2. Remov e the u pper cassette, le ft front cover , a nd b ack cov er . 3. Remov e t he tur n guid e. 4. Open t he pape r f eed cover and rem ov e the d uplex unit. 5. Remov e the si de l ef[...]

4-4 6 Ser vice M anual 5055-0 1x P ower Switc h Remo val 1. R emove the uppe r cassette, left f ront cover , paper f ee d cov er , and lef t side cov er . 2. U nlock the pow er s w itch and pull out the power switch. 3. R emove e ach ter m inal connected to the power switch. Note: When connec ting, be careful to connect the connectors correct ly . [...]

Repair Inf or m ation 4-4 7 5055-01x Connector , Duplex Unit Remov al 1. Op en the top u nit and rem ov e the u pper cas sette, left f ront cov er , pa per feed c ov er , left s ide c o v e r , RI P cover , R IP b oard, RIP box, and the electronic b o x. Remove the turn gu ide and open the paper f eed co ver and remov e the duple x unit. Remov e th[...]

4-4 8 Ser vice M anual 5055-0 1x Pa p e r Siz e Se ns or Boa rd A ss em bly Re moval 1. Open t he top unit and remov e the RIP cov er , RIP board, RIP box, and electro nic bo x. R emove the upper cassette, front cov er B, and back cov e r . Open the tur n guid e and paper f eed c ov er and re move the duplex unit. Remov e the left s i de cover an d[...]

Repair Inf or m ation 4-4 9 5055-01x Main Unit F an Remo v al 1. Remov e t he left side cov er , the solenoid cov er , and the rear co ver . 2. Remove t he two scre ws from the main unit fan br a cket . 3. Remov e t he f an. Ser v ice .bk Page 4 9 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-5 0 Ser vice M anual 5055-0 1x Main Drive Unit Remov al 1. Open t he top unit and remove the gear cover , upper cassette, left front cov er , paper f eed cov er , RIP cov er , RIP board, RIP box, electro nic box, and rea r cover . 2. Open t he tur n guide and pa per feed cov er and remov e the duplex unit. 3. R emov e the left side c ov er , powe[...]

Repair Inf or m ation 4-5 1 5055-01x 12. Remove the two screws of the fuser c o nnec tor cable a ssem bly from the fuser connector plate. Note: Not e the dir ection, w hen insta lling . 13. After removing the tw o screws on t he bracket that attache s the rear side and paper e xit side of the machine, r e move the five screws, and four screws from [...]

4-5 2 Ser vice M anual 5055-0 1x 14. R emove the bear ing fro m the belt up/down s witching shaf t and remove the belt u p/down s wi tching sha ft. 15. R emov e the sc rew from the clut ch stopper. The c lutch stopp er is attached to the ground plate with two screws. Ser v ice .bk Page 5 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-5 3 5055-01x 16. Remove the five screws on the righ t side. 17. Remove the sc rew and the scre w from th e drive unit, and remov e th e unit. 18. Remove the two screws and the screw f rom the belt up/down clutch bo x and rem ov e the belt up/do wn clutch. 19. Remove the scr ew from the drum gear sensor and remove t he sensor[...]

4-5 4 Ser vice M anual 5055-0 1x F ace-U p Pa per Exit A ssem bly Remo val F ace-U p /Down (Flapper Detectio n) Senso r Remo val F ace-Up/Do wn Solen oid Remo va l P aper Deliv ery Se nsor Remo val P aper E xit T ra y Switch R emo val 1. Open t he top unit and remove the upper cas sette. Open the duplex cov er and remov e the duplex unit. 2. R emov[...]

Repair Inf or m ation 4-5 5 5055-01x Face - D ow n G ui d e A ss em bl y R em oval P aper Exit Mo tor & Full Sen sor Remov al 1. Open t he top u nit and rem ov e the toner c ar tri dges, photocond uctor drum units, an d up per cov er . 2. Remov e t he top cov er . 3. Disconne ct the connector and remove the five scre ws and two snap band s from[...]

4-5 6 Ser vice M anual 5055-0 1x 5. R emove the two screws of the m oto r from the f ace-down guide assemb ly . Remo ve the assemb ly . Note: When the motor is installed, press the motor 45 degrees in an upward direction wh en viewing from the rear . 6. R emove the face-down paper del i ver y full sensor from the f ace- down guide assembly . Ser v [...]

Repair Inf or m ation 4-5 7 5055-01x T u rn Guide Co ver Sensor Remov al 1. Op en the top u nit and rem ov e the u pper cas sette, front cov er , multi-pur pos e feeder , righ t side cov er , and tur n guide. 2. Remov e the two scre ws from turn gu ide sensor , and rem ov e the sensor . 3. Remov e t he ter m inal. Ser v ice .bk Page 5 7 Thur sday, [...]

4-5 8 Ser vice M anual 5055-0 1x Right Slide Rail Remov al 1. R emove the uppe r cassette. 2. R emove the screw from bo th left and r ight s lide rails. Fr ont C over Op en Switch Actuat or Remo val 1. Open t he front cov er . 2. R emov e the two screws from the front cover open switch actuat or. Ser v ice .bk Page 5 8 Thur sday, Octob er 4, 2001 1[...]

Repair Inf or m ation 4-5 9 5055-01x Loc k Handle Assemb ly Rem ov al 1. Op en the top u nit. 2. T ur n the plastic l atch on the front and rear sides by 90 de grees. 3. Remov e the l ock handle assem bly . Ser v ice .bk Page 5 9 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-6 0 Ser vice M anual 5055-0 1x T op Unit Remov al 1. Open t he top unit and remove the top cov e r and f ace -down guide ass em bly . 2. R emove the screws an d remove the top uni t. Ser v ice .bk Page 6 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-6 1 5055-01x Stay Arm Remo val 1. Open t he top u nit and rem ov e the face-down pa per gu ide assemb ly . 2. Remov e the yellow an d black sub frame. 3. Remove t he screw and the s crew from the right stoppe r , and remov e th e stopper . 4. Remov e the sc rew from the l eft stopper, and remove the stopper . 5. Remov e t he[...]

4-6 2 Ser vice M anual 5055-0 1x Fus er Re moval 1. Open t he top unit. 2. Pushi ng the front and back loc k, hold the handl e, raise and remove the fuser . Ser v ice .bk Page 6 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-6 3 5055-01x Op tion s Re mov al s E xp a ns i o n Pa pe r F e ed e r Re moval 1. Remov e t he cassette. 2. Remov e t he two scre ws from the front cov er , removing the co ver . 3. Remov e t he two scre ws from left side cov er , and remov e the co ver . 4. Remov e the two screws from r ight side cover A, and remove the co [...]

4-6 4 Ser vice M anual 5055-0 1x 9. R emov e the sc rew from pa per the detec tion cover , and remove the cover . 10. R emove the pape r detection sens or . 11. R emov e the high capaci ty f eeder guid e. T he cover i s hinged in pl ac e . 12. R emov e t h e scre w from the paper f eed roller assembly N5 from 4 po sitions, and remove the rol ler . [...]

Repair Inf or m ation 4-6 5 5055-01x 13. Remove the sc rew from the ge ar cover , a nd rem ov e the cov er . 14. Remove the two screws from the paper carry ing roller , and remov e the roller . 15. Remove the con nector and remov e the two screws from the dr ive mot or , and remove t h e motor . Ser v ice .bk Page 6 5 Thur sday, Octob er 4, 2001 12[...]

4-6 6 Ser vice M anual 5055-0 1x 16. R emov e the six s crews from the dr ive assembly , a nd re mov e the assem bly . 17. R emov e the two screws fr om the paper remaining det ection board, and remove the b oard. 18. R emove the f our scr ews from t he so lenoid ass embly , an d remove the as sembly . Ser v ice .bk Page 6 6 Thur sday, Octob er 4, [...]

Repair Inf or m ation 4-6 7 5055-01x 19. Remove the two b eari ngs f rom t he turn gui de. The cov er is hinged in place. 20. Remove the scr ew from the pa per feed frame f user p late, and remov e th e plate. Ser v ice .bk Page 6 7 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-6 8 Ser vice M anual 5055-0 1x 21. R emov e the two screws from the fuser frame assembly , and remove the as sembly . 22. R emove the th ree screws from the cassette guide assembly , and re move the as sembly . Ser v ice .bk Page 6 8 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-6 9 5055-01x 23. Remove the si x screws from the s e cond dr ive board assembly , and rem ov e the ass embly . 24. Remove the two screws from the paper size detection board, and rem ov e the bo ard. 25. Remove the scr ew from the size de tection lev er spring, and remov e th e spring. 26. Remove the two screws from the conne[...]

4-7 0 Ser vice M anual 5055-0 1x 28. R emov e the two screws from the lower dr awer connector (female), and rem ov e the con nector . Ser v ice .bk Page 7 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Repair Inf or m ation 4-7 1 5055-01x Duplex Unit Separation Remov al 1. Remov e the t humbsc rews , C-clips, and s crews as shown from both sides. 2. Remov e the connec tors and s eparate the duplex frame from the duplex unit. Ser v ice .bk Page 7 1 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-7 2 Ser vice M anual 5055-0 1x Duplex Unit Re m ov al 1. R emov e the four screws from the interface board, an d rem ov e the board. 2. R emove the two scre w s from the duple x connect or , and remov e the connect or . Duplex T imin g Belt Remov al 1. R emove the three C-clips from the three timing gears and re mo ve the timin g b elts . 2. R em[...]

Repair Inf or m ation 4-7 3 5055-01x Duple x Pressure Roller and Solenoid Rem ova l 1. Remov e the tw o screws s ecuring t he pressure rol l solenoid assemb ly . Duplex Fe ed Roller And Solenoid Remov al 1. Remov e the tw o screws securin g the f eed roll sole noid assemb ly . 2. Remov e the p ressure roll er and spr ings. 3. Remov e t he f eed rol[...]

4-7 4 Ser vice M anual 5055-0 1x Dup l ex Si de Fe n c e M ot o r As s em bly / Si de Fe n c e Remov a l 1. R emove the three screws and remov e the side f en ce motor as se mb ly . 2. R emove the fro nt and rear side f ences. Note: When inst allin g, spread th e front and rear side f ences to the sides and install. Ser v ice .bk Page 7 4 Thur sday[...]

Repair Inf or m ation 4-7 5 5055-01x Du pl ex Pape r C a r r yi n g M o t o r R emoval 1. Remov e the g ear cover . 2. Remov e the sc rews from the dup lex paper carr ying m otor and re mov e the mot or . Ser v ice .bk Page 7 5 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-7 6 Ser vice M anual 5055-0 1x HCPF Covers Re m ov al 1. R emove the two screws from the driv e cover , and remov e the cov er . 2 . R e mo ve th e fr o nt c over. 3. R emove the two screws from the right co ver , and remo ve the cov er . 4. R emove the top c over . 5. R emove the rear cove r. 6. R emov e the f our screws from the t ransfer co v [...]

Repair Inf or m ation 4-7 7 5055-01x HCPF Call Roller , Pap er Feed Roller , R ev erse Roller Remov al 1. Op en the top cover on the tra y . 2. Remov e the two screws from the t ransf er cov er , and re mov e the co ver . 3. Remov e the retain ing rings on t he rollers , and re move the rollers. Ser v ice .bk Page 7 7 Thur sday, Octob er 4, 2001 12[...]

4-7 8 Ser vice M anual 5055-0 1x HC PF Pi ck up Soleno id Remo va l 1. R emov e the f our screws from the t ransfer co v er , and remo ve t h e cov er . 2. R emove the two screws from the driv e cover , and remov e the cov er . 3. R emove the screw from the clamp p late, an d remove the p late. 4. R emov e the connec tor a nd the two screws from t [...]

Repair Inf or m ation 4-7 9 5055-01x HCP F Pape r End Se nso r R emova l HCPF Pap er Size Sen sors (1, 2) Remov al 1. Cov e r the paper le v e l sensor with your hand and pres s the down butt on. The t ra y mov es down. Lower t h e tra y until the down se nsor tur ns on . 2. Remov e the fr ont cover and t ransf er cov e r . 3. Remov e t he two scre[...]

4-8 0 Ser vice M anual 5055-0 1x Notes: • T o pre v en t dam age to the stay , hol d the st ay when removing t he se ns or s. • Be sure the side regist ration i s not shifted, which may occur with the dismount ing and m ounting of th e locking sta y . If it i s shifted, relocate the sta y to ward the front or rear t o adjust. 8 . R emo ve t he [...]

Repair Inf or m ation 4-8 1 5055-01x HCPF T ra y Motor Rem o val 1. Remov e t he rear co ver and the drive co ver . 2. Remov e t he two scre ws of the tra y motor , and remov e the mot or . Ser v ice .bk Page 8 1 Thur sday, Octob er 4, 2001 12 :20 PM[...]

4-8 2 Ser vice M anual 5055-0 1x HCP F P aper Le vel S ens or Rem ov al 1. R emov e the f our screws from the t ransfer co v er , and remo ve t h e cov er . 2. R emove the two screws from the sensor , and remove the c ov er. 3. R emove the connec t or and screw f rom paper lev el sensor , and remove the sensor . Ser v ice .bk Page 8 2 Thur sday, Oc[...]

Repair Inf or m ation 4-8 3 5055-01x HCPF P ower Suppl y Remov al 1. Mov e the pa per tray upward. 2. Disconne ct the pow e r cord. 3. Remov e the fr ont cover . 4. Remove t he two scre ws from the power supply cov er , and remov e the cov er . 5. Remov e the f our scre ws from the power supply u nit and remove the unit. 6. Remov e t he two scre ws[...]

4-8 4 Ser vice M anual 5055-0 1x Ser v ice .bk Page 8 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Location s 5-1 5055-01x 5. Locations Co vers D iagram Ser vi ce .b k Pa g e 1 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

5-2 Service M anual 5055-0 1x M ajor P arts Diag ram Ser vi ce .b k Pa g e 2 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Location s 5-3 5055-01x Part Part 1 Dev el opment Rol l 16 Pap er Out Det ect ion Le v er 2 Supply Roll 17 P aper Out Detect ion Sensor 3 Doctor Blade 18 Duple x Unit 4 Agitator 19 T ran sf er Sheet 5 Absorption Roll 20 T ran sf er Belt 6 Registr ati on Upper Roll 21 Bel t Driv e Roll er 7 Registr ation Lower Roll 22 P aper Deliv er y Detect ion Le[...]

5-4 Service M anual 5055-0 1x Printer Cont r oller Board Ser vi ce .b k Pa g e 4 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Location s 5-5 5055-01x Printhead Cont roller Boar d Ser vi ce .b k Pa g e 5 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

5-6 Service M anual 5055-0 1x RIP Board Ser vi ce .b k Pa g e 6 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Location s 5-7 5055-01x P o wer Sour ce Unit 1 B oar d P o wer Sour ce Unit 2 B oar d Ser vi ce .b k Pa g e 7 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

5-8 Service M anual 5055-0 1x High V oltage P owe r Supply Boar d Ser vi ce .b k Pa g e 8 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Location s 5-9 5055-01x Se nsor B oa r d E xpa ns io n Pape r F e ed er C o nt roll er Boa rd Ser vi ce .b k Pa g e 9 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

5-1 0 Ser vice M anual 5055-0 1x Duplex Un it Contr oller Board Mo t or D r iv e B o a rd Size Se n s or Board Ser v ice .bk Page 1 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Locations 5-1 1 5055-01x High Capa city P aper F eed (H CPF) Ser v ice .bk Page 1 1 Thur sday, Octob er 4, 2001 12 :20 PM[...]

5-1 2 Ser vice M anual 5055-0 1x Hig h Capacit y P aper Feed Co nfigu ration Ser v ice .bk Page 1 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Locations 5-1 3 5055-01x E l ect ri ca l Par ts Layou t Ser v ice .bk Page 1 3 Thur sday, Octob er 4, 2001 12 :20 PM[...]

5-1 4 Ser vice M anual 5055-0 1x Drivin g P ar ts Lay out Ser v ice .bk Page 1 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Locations 5-1 5 5055-01x S en sor an d S wit ch Lo c at io ns Ser v ice .bk Page 1 5 Thur sday, Octob er 4, 2001 12 :20 PM[...]

5-1 6 Ser vice M anual 5055-0 1x Ser v ice .bk Page 1 6 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Locations 5-1 7 5055-01x Co mp on ent Lo c at io ns Ser v ice .bk Page 1 7 Thur sday, Octob er 4, 2001 12 :20 PM[...]

5-1 8 Ser vice M anual 5055-0 1x Number Componen t 1 Printhead Control ler Board 2 Operator P anel 3R I P B o x 4 Motor Driver Boar d 5P o w e r S w i t c h 6 Printer Control l er Board 7 High V oltage Uni t (HVU) 8 Upper Left F an 9 Main Drive Motor 10 Upper Rig ht F an 11 P o wer Suppl y F an 12 T emperat ur e/Humi dity Sen sor 13 P aper Rem aini[...]

Pre ventive Maintenance 6-1 5055-01x 6. Preventive M ainte nance Mainten ance Kit When nearing the end -of-lif e of the fuser or transf er belt, the f ollowi ng messag e appears on the pr inter dis pla y , indicating t hat it ’ s tim e to replace the fuser unit and/or transf er belt unit: 80 Be l t Life W arn in g and/ or 8 0 F us er L if e War n[...]

6-2 Service M anual 5055-0 1x P erio d ic Mainten ance This tabl e lists the par ts to be per iodically cleaned by the ser vicer . Lub ricant s and Clea ner s Part Name Method P a per Fe ed Unit: • P ape r Feed Roller • MPF Ro ll Remo ve any d ust or d ir t, and wipe the s urf ace li ghtly wi th a dry cloth. If it is sti l l dir ty , cle an wit[...]

Pa r t s C a t a l o g 7- 1 5055-01x 7. P ar ts C atalog How to Use T his P ar ts Catalo g • SIMIL AR ASSE MBLIE S: If tw o asse mb lies co n ta i n a m ajorit y o f identical par ts, they are shown on the same list. Comm on par t s are shown b y one index n u mbe r . Parts peculiar to one or t he other of th e assem blies are li sted separately [...]

7-2 Service M anual 5055-0 1x Ass embly 1: Co vers 1 Ser vi ce .b k Pa g e 2 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Pa r t s C a t a l o g 7- 3 5055-01x Asm- Index Par t Number Unit s Descrip t ion 1 - 1 12G736 0 1 Board, Operat or P anel 2 56P9736 1 Cab l e, Oper ator Pan el 3 56P9555 1 Hous ing , Upper Operator Pane l 4 56P9556 1 Hous i ng, Lower Operator P anel 5 56P9539 1 Co v er , T op 6 56P9533 1 Co v er Assemb ly , Righ t Si de 7 56P9534 1 Magnet, Right S[...]

7-4 Service M anual 5055-0 1x Ass embly 2: Co vers 2 Ser vi ce .b k Pa g e 4 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Pa r t s C a t a l o g 7- 5 5055-01x Asm- Index Par t Number Unit s Descrip t ion 2 - 1 56P9557 1 Exit Ass embly , F ace- Up 2 56P9558 2 Scre w , Stopper 3 11G02 43 2 I nterrupter , Photo 4 56P9564 1 Cabl e, F ace-Up Sensor 5 56P9559 1 Roller , P aper Ex it 6 56P9561 1 Deflecto r , F ace-Up 7 56P9502 1 Switch, P a per Exit T ray 8 56P9565 1 Cable, [...]

7-6 Service M anual 5055-0 1x Ass embly 3: Co vers 3 Ser vi ce .b k Pa g e 6 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Pa r t s C a t a l o g 7- 7 5055-01x Asm- Index Par t Number Unit s Descrip t ion 3 - 1 56P9566 1 Guide Assembl y , F ace-Do wn 2 56P9572 1 Spring, F ace- D own Pa per Full 3 56P9573 1 Lev er, F ace- Down P aper Full 4 56P9574 1 Roller , F ace-Do wn Upper F eed 5 11G01 35 8 Rol ler , F ace-Do wn Pinch 6 56P9568 8 Spring, F ace- D own Pi nch Roller [...]

7-8 Service M anual 5055-0 1x Ass embly 4: Co vers 4 Ser vi ce .b k Pa g e 8 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

Pa r t s C a t a l o g 7- 9 5055-01x Asm- Index Par t Number Unit s Descrip t ion 4 - 1 56P9584 1 Guide Assembly , T ur n Ser vi ce .b k Pa g e 9 T hu r sd ay, O c tob er 4, 20 01 12 :20 P M[...]

7-1 0 Ser vice M anual 5055-0 1x Ass embly 5: Co vers 5 Ser v ice .bk Page 1 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-1 1 5055-01x Asm- Index Par t Number Unit s Descrip t ion 5 - 1 56P9587 1 Fee der Assem bly , Mult i-Pur pose 2 56P9589 1 Extende r , MPF 3 56P9588 1 Cov er , MPF 4 56P9590 1 Spring, MPF 5 11G0118 1 Pinion, MPF 6 11G0117 1 Rack, MPF 7 11G0120 1 Spring, F eeder L ock Ser v ice .bk Page 1 1 Thur sday, Octob er 4, 2001 12 :20 [...]

7-1 2 Ser vice M anual 5055-0 1x Assembl y 6: Upper Unit Ser v ice .bk Page 1 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-1 3 5055-01x Asm- Index Par t Number Unit s Descrip t ion 6 - 1 56P9591 1 F rame, Upper 2 56P9620 1 Board, Pri nthead Cont roller 3 56P9638 6 Holder , Cable 4 56P9600 2 Cabl e Assemb ly , K13 5 56P9601 2 Cabl e Assemb ly , K24 6 56P9602 6 Cabl e Assemb ly , CL13 7 56P9603 6 Cabl e Assemb ly , CL24 8 56P9716 1 Cable A ssemb [...]

7-1 4 Ser vice M anual 5055-0 1x Assembly 6: Upper Unit (Con tinued) Ser v ice .bk Page 1 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-1 5 5055-01x Asm- Index Par t Number Unit s Descrip t ion 6 - 35 56P9599 4 Printh ead, LED 36 56P9610 4 Rail, Right Si de 37 56P9593 4 Holder , Rear Pr int head 38 56P9619 1 Brac k et, Rear Upper 39 56P9622 1 F an, Up per Right 40 56P9623 1 F an, Up per Left 41 56P9621 1 Brac k et, F an Holder NS 56P9629 1 F rame, Lin k NS [...]

7-1 6 Ser vice M anual 5055-0 1x Assembl y 7: Base 1 Ser v ice .bk Page 1 6 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-1 7 5055-01x Asm- Index Par t Number Unit s Descrip t ion 7 - 1 56P9664 1 F rame, P aper F eed 2 56P9503 4 Foo t, Rubber 3 56P9512 1 Roller Assembl y , P aper Car r ying 4 56P9511 1 Roller Assembl y , P aper F eed 5 11G02 43 1 I nterrupter , Photo 6 56P9665 1 Sensor , P aper Feed 7 56P9507 1 Act uator , P aper F eed Sensor [...]

7-1 8 Ser vice M anual 5055-0 1x Ass embly 7: Base 1 (Cont inued) Ser v ice .bk Page 1 8 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-1 9 5055-01x Asm- Index Par t Number Unit s Descrip t ion 35 56P96 58 1 Sens or Asse m bl y , K T oner Remaini ng 36 56P9646 1 F rame, Sub 37 56P9657 1 Sens or Assembl y , Y T oner Remaining 38 56P9656 1 Sens or Assembl y , C T oner Remaini ng 39 56P9655 1 Sens or Assembl y , M T oner Remai ni ng 40 56P9661 1 Rod, L ock 41 [...]

7-2 0 Ser vice M anual 5055-0 1x Assembl y 8: Base 2 Ser v ice .bk Page 2 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-2 1 5055-01x Asm- Index Par t Number Unit s Descrip t ion 8 - 1 56P9666 1 Suppor t Asse m bly , Upper Unit 2 56P9667 4 Pi n, Uppe r Unit Suppor t 3 56P9668 1 Handle Assembl y , Lo ck 4 56P9669 1 Handle , Loc k 5 56P9673 1 Cov er , El ectr onic 6 56P9670 1 Shroud, Cable 7 56P9672 1 Guide , Cab le 8 56P9671 1 Guide , Cab le S[...]

7-22 Se r vice Man ual 5055-0 1x Assem bly 9: B ase 3[...]

Pa r t s C a t a l o g 7-2 3 5055-01x Asm- Index Par t Number Unit s Descrip t ion 9 - 1 56P9688 1 F rame Assem bly , MPF 2 56P9689 1 Clutch, MPF 3 56P9690 1 Actuator , M PF 4 11G02 43 1 I nterrupter , Photo 5 56P9691 1 Actuat or, Resi st 6 11G02 19 1 I nterrupter , Photo 7 56P9899 1 Sensor , Up per T ransparenc y 8 11G0283 1 Pa d, F r aming 9 56P9[...]

7-2 4 Ser vice M anual 5055-0 1x Ass embl y 10: Electr ical Ser v ice .bk Page 2 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-2 5 5055-01x Asm- Index Par t Number Unit s Descrip t ion 10 - 1 56P9705 1 Cable Assem b ly , Feed er 2 56P9704 1 Cab le Assemb ly , Pa per Remaini ng Sensor 3 56P9700 1 Solenoid Assemb ly , P aper F eed 4 11G02 43 1 I nterrupter , Photo 5 56P9702 1 Cab le, Bel t Up/Down Sens or 6 56P9701 1 Board, Sensor 7 56P9703 1 Cab le [...]

7-2 6 Ser vice M anual 5055-0 1x Ass embly 10: E lectric al (Cont inued) Ser v ice .bk Page 2 6 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-2 7 5055-01x Asm- Index Par t Number Unit s Descrip t ion 10 -28 56P97 14 1 Board, High V oltag e P o we r Supply 29 56P9727 1 Cab le Assemb ly , Printer Control l er P ower 2 30 56P9726 1 Cab le Assemb ly , Printer Control l er P ower 1 31 56P9724 1 P ower Supply , 120 V (2) 31 56P9725 1 P ower Supply , 230 V (2) 32 56P971[...]

7-2 8 Ser vice M anual 5055-0 1x As se m bly 11 : I/ F C on t roll e r Ser v ice .bk Page 2 8 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-2 9 5055-01x Asm- Index Par t Number Unit s Descrip t ion 11 - 1 56P9749 1 Cable Assem b ly , P ower RIP 2 56P9916 1 Card, Riser 3 56P9897 1 Board, RI P Control ler 4 56P9750 1 F an, RIP 5 56P9745 1 Box , RI P 6 56P9719 1 Cable Asse mbly , 80 Pin RIP Printer Cont r oller 7 56P9736 1 Cab le, O per ator P a nel 8 56P9746 1 Co[...]

7-3 0 Ser vice M anual 5055-0 1x As se m bly 11 : I/ F C on t roll e r ( Co nt i nue d ) Ser v ice .bk Page 3 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-3 1 5055-01x Asm- Index Par t Number Unit s Descrip t ion NS 56P9926 1 Softw are, Op tra Forms NS 56P9927 1 Softw are, Op tra Forms Di rector NS 56P9928 1 DIMM, Le xmark Forms 4MB Flash NS 56P9929 1 DIMM, Le xmark Forms 8MB Flash NS 56P9930 1 DIMM, Le xmark Forms 16MB Flas h NS 56P9932 1 Hard Disk, Le xmark F or ms 5+ GB Se[...]

7-3 2 Ser vice M anual 5055-0 1x As se m bly 12 : Fu se r U ni t Ser v ice .bk Page 3 2 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-3 3 5055-01x Asm- Index Par t Number Unit s Descrip t ion 12 - 1 56P9751 1 Fuser , 120 V 1 56P9752 1 Fuser , 23 0 V Ser v ice .bk Page 3 3 Thur sday, Octob er 4, 2001 12 :20 PM[...]

7-3 4 Ser vice M anual 5055-0 1x Ass embl y 13: Casset te Ser v ice .bk Page 3 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-3 5 5055-01x Asm- Index Par t Number Unit s Descrip t ion 13 - 1 56P9500 1 Cassette , Pa per Fe ed 2 56P9761 1 Pa wl, Rear 3 56P9754 1 Pl ate , Right Rear Loc ati on 4 56P9755 1 Spring, L ocation Pl ate 5 56P9753 1 Plate, Left Re ar Loc ation 6 56P9763 2 Spring, A Push Up 7 56P9764 2 Spring, B Push Up 8 56P9757 1 Locator , [...]

7-3 6 Ser vice M anual 5055-0 1x Ass embl y 14: E xpans ion Fee der 1 Ser v ice .bk Page 3 6 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-3 7 5055-01x Asm- Index Par t Number Unit s Descrip t ion 14 - 1 56P9780 4 Guide, Wir e 2 56P9773 1 Gear , Feed er E 3 56P9771 1 Gear , Feed er C 4 11G0422 2 G ear , Feed er B 5 56P9772 1 Gear , Feed er D 6 11G0423 1 G ear , Feed er A 7 56P9770 1 Co ver , Right Side C 8 56P9769 1 Co ver , Right Side B 9 56P9767 1 Co ver , R[...]

7-3 8 Ser vice M anual 5055-0 1x Ass embl y 15: E xpans ion Fee der 2 Ser v ice .bk Page 3 8 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-3 9 5055-01x Asm- Index Par t Number Unit s Descrip t ion 15 - 1 56P9796 1 Roller Asse mb l y , Carrying 2 56P9514 2 Roller , Noise Reduction 3 56P9513 2 Bushing , Carr ying 4 56P9509 2 Bushing , Metal 5 56P9790 4 Roller , P aper Ca rr ying 6 56P9792 4 Holder , Roller 7 56P9791 4 Spring, P aper Carrying 8 56P9794 1 Spring, [...]

7-4 0 Ser vice M anual 5055-0 1x Assembl y 16: Duplex Unit 1 Ser v ice .bk Page 4 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-4 1 5055-01x Asm- Index Par t Number Unit s Descrip t ion 16 - 1 56P9798 1 Duple x Assemb ly 2 56P9804 1 Board, Dup le x Interf ace 3 56P9799 1 F rame, Duplex 4 56P9800 2 Scre w , Duple x M ounting 5 56P9803 1 Motor , Dup le x Stepp i ng 6 56P9525 1 Interrupter , Photo 7 56P9806 1 Cab le Assemb ly , Pa per Detect io n NS 56[...]

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Pa r t s C a t a l o g 7-4 3 5055-01x Asm- Index Par t Number Unit s Descrip t ion 17 - 1 56P9825 1 Plate , P aper R e-F eed Dra wer 2 56P9827 1 Guide , Rear Side 3 56P9826 1 Guide , F ront Side 4 56P9830 1 Solenoid Assemb ly , P aper Re -f eed 5 56P9814 8 Bearing, Rele ase 6 56P9816 2 Spring, Re- feed Rolle r 7 56P9813 4 Roll, Rele ase 8 56P9525 1[...]

7-4 4 Ser vice M anual 5055-0 1x Assembl y 18: High Capacity P aper Feed 1 Ser v ice .bk Page 4 4 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-4 5 5055-01x Asm- Index Par t Number Unit s Descrip t ion 18 - 1 56P9838 1 Catch, Door 2 56P9835 1 Magnet, Latch 3 56P9837 1 Cov er , Upper 4 56P9834 1 Cov er , Upper Rear 5 56P9843 1 Cov er , Lo wer Rear 6 56P9839 1 Cov er , Right 7 56P9833 1 Cov er , Fr ont 8 56P9836 1 Fen ce, End 9 56P9940 1 Ring, Sna p 10 56P9841 1 Cov [...]

7-4 6 Ser vice M anual 5055-0 1x Assembl y 19: High Capacity P aper Feed 2 Ser v ice .bk Page 4 6 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-4 7 5055-01x Asm- Index Par t Number Unit s Descrip t ion 19 - 1 56P9846 1 Solenoi d Assembl y , P aper Pic kup 2 56P9848 1 Clutch, P aper Fe ed 3 56P9844 1 Motor Asse mb l y , T ransport 4 56P9941 1 Arm , Pick -up 5 56P9501 1 Spring, Pr essure 6 56P9528 1 Interrupter , Photo 7 56P9849 1 Roller , Man ual F eed Pic kup 8 56P[...]

7-4 8 Ser vice M anual 5055-0 1x Assembl y 20: High Capacity P aper Feed 3 Ser v ice .bk Page 4 8 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-4 9 5055-01x Asm- Index Par t Number Unit s Descrip t ion 20 - 1 56P9854 1 Sens or Asse m bl y , Photo 2 56P9855 1 Interrupter , Photo 3 56P9529 1 Caster , HCPF 4 56P9856 1 Spring, T ension 5 56P9857 1 Switch, Micro 6 56P9530 1 Switch, Push 7 56P9859 1 Connect or , Inl et 8 56P9858 1 Connect or , I/F 9 56P9853 3 Scre w , Sh[...]

7-5 0 Ser vice M anual 5055-0 1x Assembl y 21: High Capacity P aper Feed 4 Ser v ice .bk Page 5 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]

Pa r t s C a t a l o g 7-5 1 5055-01x Asm- Index Par t Number Unit s Descrip t ion 21 - 1 56P9541 1 Sensor , Resisto r 2 56P9875 1 Cabl e Assemb ly , Saf ety Swi tch 3 56P9865 1 Cable A ssemb ly , HCPF Motor 4 56P9871 1 Cabl e Assemb ly , I/F 5 56P9866 1 Cabl e Assem b ly , Pa per Fee d Sensor 6 56P9880 1 Cabl e, Up/Down Switch 7 56P9879 1 Cabl e, [...]

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Pa r t s C a t a l o g 7-5 3 5055-01x Asm- Index Par t Number Unit s Descrip t ion 22 - 1 56P9883 2 Spring, Press ure 2 56P95 28 4 In terrupter , Phot o 3 56P98 88 1 Br ack et, Rear Idler 4 56P98 84 2 Bel t, Timing 5 56P98 86 1 Gear , Drive 6 56P98 85 2 Pul ley , Timing 7 56P98 82 1 Moto r , HCPF DC 8 56P98 87 1 Br ack et, F ront Id ler Ser v ice .[...]

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Pa r t s C a t a l o g 7-5 5 5055-01x Asm- Index Par t Number Unit s Descrip t ion 23 - 1 56P9892 1 Plate, Upper Si de Fence 2 56P98 93 2 Knob 3 56P98 91 2 Knob , T ra y 4 56P98 90 2 Pl ate, P aper Ad hesion 5 56P99 15 1 F ence Assemb ly , F ront Side 6 56P98 94 1 F ence Assemb ly , Rear Side 7 56P95 28 2 In terrupter , Phot o 8 56P98 89 1 P ad, F [...]

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Index I- 1 5055-01x Ind ex A Abbrevi ations 1-4 Adjust m ents 2-1 Attenda nce Messages 2-25 C Clearing th e Error Log 3- 26 Componen t Loca tions 5-16 Connector s cov e rs d i ag r a m 5- 1 duple x unit contro ller board 5-10 exten sion paper feed er controll er board 5-9 high vo ltage power suppl y board 5-8 major part s dia gram 5- 2 motor dri ve[...]

I-2 Ser vice Manual 5055-0 1x 7 - False "88 Toner Low/ ton er Empty" Message 2-47 8 - False "40 Tray ( X ) Siz e Sensor Error " Message 2- 48 9 - False "41 Open Bin 1 Exi t Tra y" Mess age 2- 48 Menu Overview 3-4 Menu Setting s 3-4 O Operat or Menu Disabled 3- 4 Operat or Panel Button s 3-3 P Part s Catalog 7- 1 base 1[...]

Index I- 3 5055-01x HCPF call roll er , paper feed rol l er, rev erse rol ler 4-77 cove rs 4-7 6 paper end sens or 4-7 9 paper lev el sensor 4-82 paper siz e sensors ( 1, 2) 4-79 pickup sol enoid 4-78 power s upply 4-83 tra y m oto r 4-81 high capac ity p aper fee der (HCPF) 4-76 high vo ltage power suppl y board 4-38 LED prin the ad 4-12 lock hand[...]

I-4 Ser vice Manual 5055-0 1x T Test 3-1 0 Tests butto n 3-10 device 3-17 disk te st/clean 3-18 DRAM memory 3-11 fla sh 3-19 hardwar e 3-10 input sourc e print 3-8 LCD hardware 3-10 paral lel wrap 3-13 print 3-8 print qual ity pages 3-9 quick di sk 3-1 7 ROM me mory 3-12 s er i al w r ap 3-15 Theory belt unit 1-15 belt up/down 1-16 casset te paper [...]

Index I- 5 5055-01x Pa rt N um be r s 11D0328 7-27 11D0329 7-27 11D0330 7-27 11D0331 7-27 11D0332 7-27 11D0333 7-27 11D0334 7-27 11D0335 7-27 11D0336 7-27 11D0337 7-27 11G0117 7-11 11G0118 7-11, 7-35 11G0120 7-11, 7-35 11G0135 7-7 11G0219 7 - 7, 7- 23 , 7-3 9 11G0243 7 - 5, 7- 17 , 7-2 3 , 7- 25 11G0283 7-23 11G0284 7-35 11G0291 7-39 11G0297 7-39 1[...]

I-6 Ser vice Manual 5055-0 1x 56P9549 7- 3 56P9550 7- 3 56P9551 7- 3 56P9554 7- 3 56P9555 7- 3 56P9556 7- 3 56P9557 7- 5 56P9558 7- 5 56P9559 7- 5 56P9560 7- 5 56P9561 7- 5 56P9562 7- 5 56P9563 7- 5 56P9564 7- 5 56P9565 7- 5 56P9566 7- 7 56P9567 7- 7 56P9568 7- 7 56P9569 7- 7 56P9570 7- 7 56P9571 7- 7 56P9572 7- 7 56P9573 7- 7 56P9574 7- 7 56P9575 [...]

Index I- 7 5055-01x 56P9655 7-19 56P9656 7-19 56P9657 7-19 56P9658 7-19 56P9659 7-17 56P9660 7-17 56P9661 7-19 56P9662 7-19 56P9663 7-17 56P9664 7-17 56P9665 7-17 56P9666 7-21 56P9667 7-21 56P9668 7-21 56P9669 7-21 56P9670 7-21 56P9671 7-21 56P9672 7-21 56P9673 7-21 56P9674 7-23 56P9675 7-23 56P9676 7-23 56P9677 7-23 56P9678 7-23 56P9679 7-23 56P96[...]

I-8 Ser vice Manual 5055-0 1x 56P9754 7- 35 56P9755 7- 35 56P9756 7- 35 56P9757 7- 35 56P9758 7- 35 56P9759 7- 35 56P9760 7- 35 56P9761 7- 35 56P9762 7- 35 56P9763 7- 35 56P9764 7- 35 56P9765 7- 37 56P9766 7- 37 56P9767 7- 37 56P9768 7- 37 56P9769 7- 37 56P9770 7- 37 56P9771 7- 37 56P9772 7- 37 56P9773 7- 37 56P9774 7- 37 56P9775 7- 37 56P9776 7- 3[...]

Index I- 9 5055-01x 56P9850 7-47 56P9851 7-47 56P9852 7-47 56P9853 7-49 56P9854 7-49 56P9855 7-49 56P9856 7-49 56P9857 7-49 56P9858 7-49 56P9859 7-49 56P9861 7-51 56P9862 7-51 56P9863 7-51 56P9864 7-51 56P9865 7-51 56P9866 7-51 56P9867 7-51 56P9868 7-51 56P9869 7-51 56P9870 7-51 56P9871 7-51 56P9872 7-51 56P9873 7-51 56P9874 7-51 56P9875 7-51 56P98[...]

I-10 Ser v ice Manua l 5055-0 1x Ser v ice .bk Page 1 0 Thur sday, Octob er 4, 2001 12 :20 PM[...]