OKI Microline 491 manuale d’uso

User’s Guide 593 4840 1[...]

2 Microline 490/ 49 1 User’s Guide P/N 59348401 Revision 1.1 June 2006 Every effort has been made to ensure that the information in this document is complete, accurate, and up-to-date. Oki Data assumes no responsibility for the results of errors beyond its control. Oki Data also cannot guarantee that changes in software and equipment made by othe[...]

3 Safety Y our Oki printer has been carefully designed to gi ve you year s of safe, reliable performance. As with all electrical equipment, there are a few basic precautions you should take to avoid hurting yourself or damaging the printer: • Carefully read all setup and operating instructions. Be sure to save all documents for future reference. [...]

4 Microline 490/ 49 1 User’s Guide • Unplug the printer before you clean it. Use only a damp cloth. Do not use liquid or aerosol cleaners. • T o pr otect your printer from ov erheating, mak e sure no openings on the printer are blocked. Do not put the printer on or near a heat source, such as a radiator or heat register . If you put the print[...]

5 Safety ............................................................................ 3 Chapter 1: Introduction ............................................. 7 Printer Features ............................................................................... 7 Chapter 2: Helpful Hints ........................................... 8 Saving Money: F orms[...]

6 Microline 490/ 49 1 User’s Guide Chapter 4: Menu Mode ............................................ 26 Menu Mode Keys ....................................................................... 26 Entering and Exiting Menu Mode ............................................. 27 Resetting the Menu to the Factory Defaults .............................. [...]

7 Chapt er 1: Introduction Oki Data on the Internet The Oki Data W eb Sites provide the most current information av ailable on your printer . On-line documents are available for viewing and downloading via Oki Data’ s W eb Sites. Y ou may reach Oki Data via the Internet at: • www.okidata.com • my .okidata.com Printer Features • Super reliab[...]

8 Chapt er 2: Helpful Hints Saving Time Internet Support Oki Data provides support via the Internet: • www .okidata.com is the main web site, the gatew ay to Oki Data’ s products and services. • http://my .okidata.com is a powerful area of Oki Data’ s web site designed to help you personalize the information and service you get from Oki Dat[...]

Helpful Hints 9 Operation Tips T op of Form (T OF) T op of Form (TOF) sets the print start position. The factory default is 1" from the top. The T op of Form can be changed in increments of 1/180", either for a single print job or set to a new default. The ov erall amount of adjustment is limited to avoid paper jams. The first line prints[...]

10 Note: F or rear feed, the paper lever must be forwar d. Chapt er 3: Using Y our Print er Parts Identification: Rear Feed (Continuous Forms) Note: The serial number of your printer is on a label on the back, beside “S/N.” Sheet Guide Paper Lever On-Of f Switch Platen Knob Control Panel Acoustic Cover Access Cover[...]

Using Your Printer 11 P ar ts Identification: T op Feed (Single Sheets) Paper Guides Sheet Guide Paper Lever On-Of f Switch Platen Knob Control Panel Acoustic Cover (open) Note: F or single-sheet printing, the paper le ver must be in the middle position.[...]

12 Microline 490/ 491 User’s Guide T op of Form (T OF) Important! If you turn the platen knob when the printer is on, the T op of F orm misaligns. Always shut the printer off bef ore turning the platen knob! Note: The factory default setting for the T op of F orm (wher e the printing should be gin) is 1" down fr om the top of the page. T op [...]

Using Your Printer 13 Determining if F orms T ear-Off is Off or On There are two ways to determine the status of the Forms T ear -Off men u setting: • Print the Menu. • Use the TEAR key . T o print the Menu: 1 Make sure paper is loaded. 2 Hold SHIFT (2), then press SEL (1) to enter the Menu Mode. 3 Press P ARK (4) to print the menu. 4 Look for [...]

14 Microline 490/ 491 User’s Guide Setting T op of Form (T OF): Forms T ear- Off OFF (Default Setting) Important! If you turn the platen knob when the printer is on, the T op of F orm misaligns. Always turn the printer off bef ore turning the platen knob! Note: The f irst line prints at the r ed line (1) of the plastic paper shield on the printhe[...]

Using Your Printer 15 Setting T op of Form (T OF): Forms T ear- Off Set to ON Important! If you turn the platen knob when the printer is on, the T op of F orm misaligns. Always turn the printer off bef ore turning the platen knob! Note: The f irst line prints at the r ed line (1) of the plastic paper shield on the printhead. W ith pa per loaded and[...]

16 Microline 490/ 491 User’s Guide T emporarily Chang ing the T op of F orm P osition Important Do not use the platen knob to change the T op of F orm. If you turn the platen knob when the printer is turned on, the T op of F orm misaligns. Always turn the printer off bef ore turning the platen knob! T o move the T op of Form position lo w er for [...]

Using Your Printer 17 F orms T ear-Off Feature Note: This featur e is normally turned off. T o use F orms T ear-Of f, you must enter the menu and c hange the setting to the desir ed time interval (see next page). The Forms T ear-Of f f e ature allows a printed continuous forms page to be torn of f without wasting paper or adjusting the printer . It[...]

18 Microline 490/ 491 User’s Guide Chang ing the F orms T ear-Off Setting Note: The default setting for F orms T ear-Of f is OFF . T o c hange the F orms T ear-Of f setting: 1 Press SHIFT (2) + SEL (1). 2 Press GROUP (3) repeatedly until the Rear Feed or Bottom Feed group shows in the first column of the printed line, depending on which paper fee[...]

Using Your Printer 19 Changing Paper Paths Continuous Forms to Single Sheets 1 T ear of f any printed pages, then press P ARK . 2 Raise the sheet guide (1) to the single-sheet feed position. 3 Pivot the wire feed guide into the sheet guide. 4 Move the paper lever (1) to the middle position marked “TOP . ” 5 Adjust the paper guides (1) for the s[...]

20 Microline 490/ 491 User’s Guide Single Sheets to Continuous Forms 1 Press FF/LO AD to remove the single-sheet paper . 2 Lower the sheet guide into the continuous-forms position. 3 Swing the wire feed guide ov er onto the pull-up roller . 4 Move the paper lever to the appropriate position. • Rear feed: • Bottom feed: 5 If necessary , load c[...]

Using Your Printer 21 T o adjust the gap, open the access cover and mo ve the blue lever (1) to the recommended setting from the table. Setting Media 1 Regular paper 2 2-part form (with carbon) 3 3-part form (with carbon) 4 4-part form (with carbon) 5 Envelopes or extra thick paper Note: When the head gap is set to 2, 3, 4 or 5, the printer automat[...]

22 Microline 490/ 491 User’s Guide Print Quality Important! Front panel settings for print quality and character pitch are normally overridden by software commands. Press PRINT QU ALITY (1) to select: L Q: Letter Quality [L Q light on] • Highest quality , slo west speed • Choice of 7 typefaces Utility [UTILIT Y light on] • Medium quality , [...]

Using Your Printer 23 T ypefaces: L Q Mode Important! Front panel settings for print quality and typeface are normally overridden by software commands. T o select the typeface you wish to use, press PRINT QU ALITY (1) until the appropriate front panel lights are on: T ypeface Lights on Courier LQ and COURIER Gothic LQ and GOTHIC Orator LQ and ORA T[...]

24 Microline 490/ 491 User’s Guide Charact er Pitch Important! Front panel settings for character pitch are normally overridden by software commands. Character pitch determines how many characters will print on each line. Y ou can choose a specific fix ed width for each character of from 10 to 20 characters per inc h (CPI). The higher cpi setting[...]

Using Your Printer 25 Printer Reset Clearing some error conditions requires that you reset (reinitialize) the printer . T o do this: 1 Press and release SEL (1) to take the printer of f-line. The SEL light goes out. 2 Press and hold SHIFT (2), then press RESET / CHARACTER PITCH . Important! Pressing SHIFT + RESET reinitializes the printer , but doe[...]

26 Chapt er 4: Menu Mode GROUP Key Prints the next Group in the Menu. W ith the SHIFT ke y , prints the previous Group. ITEM Key Prints the next Item in the Group. W ith the SHIFT key , prints the previous Item in the Group. SET Key Prints the next setting for an Item. W ith the SHIFT key , prints the previous setting for an Item. P RINT Key Prints[...]

Menu Mode 27 Entering and Exiting Menu Mode T o enter or exit the Menu Mode, hold SHIFT while pressing SEL . Resetting the Menu to the Factory Defaults Note: Please print the curr ent Menu Mode settings befor e you r eset or change them. This is the only way to have a r ecor d of the settings. T o reset the Menu to the standard settings (factor y d[...]

28 Microline 490/ 491 User’s Guide Chang ing the Menu Settings Note: Please print the curr ent Menu Mode settings befor e you r eset or change them. This is the only way to have a r ecor d of the settings. 1 Press and hold SHIFT , then press SEL to enter the Menu Mode. 2 Use the GROUP , ITEM and SET keys to make your changes: a Press GROUP until [...]

Menu Mode 29 Menu Settings T able For a complete e xplanation of each menu item, see “Explanations of Menu Items” later in this chapter . The table below shows the items which may appear in the menu. Settings which are engaged at the factory (defaults) are set in bold italic . Some groups or entries will only appear when a specific emulation is[...]

30 Microline 490/ 491 User’s Guide Menu Settings T able (Continued) Group Item Settings (Defaults are set in bold italic) Rear Feed Line Spacing 6 LPI , 8 LPI Form T ear -Off Off , 500 ms, 1 sec, 2 sec Skip Over Perforation No , Y es Page Width (wide model) 13.6" , 8" Page Length 11" , 11-2/3", 12", 14", 17", 5&[...]

Menu Mode 31 Menu Settings T able (Continued) Group Item Settings (Defaults are set in bold italic) T op F eed Line Spacing 6 LPI , 8 LPI Form T ear-Of f* Off , 500 ms, 1 sec, 2 sec Bottom Margin V alid , Inv alid Page Width (wide model) 8" , 13.6" Page Length 11" , 11-2/3", 12", 14", 17", 5", 3", 3.25&q[...]

32 Microline 490/ 491 User’s Guide Menu Settings T able (Continued) Group Item Settings (Defaults are set in bold italic) Setup (cont.) Operator Panel Function Full Operation , Limited Operation Reset Inhibit No , Y es Print Suppress Effecti ve No, Ye s Auto LF No , Y es Auto CR* No , Y es CSF Bin Select† Bin 1 , Bin 2 SI Select Pitch (10 cpi)*[...]

Menu Mode 33 Menu Settings T able (Continued) Group Item Settings (Defaults are set in bold italic) Parallel I/F I-Prime Buff er Print , Buffer Clear , In valid Pin 18 +5V , Open Auto Feed XT* In valid , V alid Bi-Direction Enable , Disable Serial IF† Parity None , Odd, Even Serial Data 7/8 Bits 8 Bits , 7 Bits Protocol Ready/Busy , X/On / X/Off [...]

34 Microline 490/ 491 User’s Guide Menu Settings T able (Continued) Group Item Settings (Defaults are set in bold italic) CSF Bin 1* Line Spacing 6 LPI , 8 LPI Bottom Margin V alid , Inv alid Page W idth (Wide model) 8" , 13.6" Page Length 11" , 11-2/3", 12", 14", 17", 5", 3.5", 4", 5.5", 6&q[...]

Menu Mode 35 Explanations of Menu Items These explanations are in alphabetical sequence to make it easier to look them up. Some items only appear when optional accessories are installed; others appear in several groups in the menu. Auto CR, Default =No IBM Only . If you want the printer to automatically add a carriage return when a Line Feed is rec[...]

36 Microline 490/ 491 User’s Guide Busy Line, Default = SSD- Appears only when the optional Serial Interface is installed. If Ready/Busy protocol (factory default) is selected, you can choose which line your system monitors for a busy signal: • SSD -9V , select SSD- • SSD +9V , select SSD+ • DTR -9V , select DTR • R TS -9V , select R TS B[...]

Menu Mode 37 DTR Signal, Default = Ready on Power Up Appears only when the optional Serial Interface is installed. Change to Ready on Select if the DTR signal is required when the printer is selected (leave as Ready on Power Up if the DTR signal is required when the printer is turned on). Emulation Mode, Default = Epson L Q Selects the printer comm[...]

38 Microline 490/ 491 User’s Guide Operator Panel F unction, Default = Full Operation Change to Limited Operation to deactivate the PRINT QUALITY and CHARACTER PITCH buttons, so that these features can only be controlled through your software. This pre vents these from being changed from the control panel when several people are using the printer[...]

Menu Mode 39 Power Save Time, Default = 5 min Sets the interval the printer waits for more data before it goes into the power save mode. Power Saving must be set to enable (the factory default) for this to be ef fective. Power Saving, Default = Enable Change to Disable if you wish to prevent the printer from entering the Power Save mode after the s[...]

40 Microline 490/ 491 User’s Guide Serial Data 7 /8 Bits, Default = 8 Bits Appears only if the optional Serial Interface is installed. Change to 7 Bits if you systems uses a 7-bit data format. SI Select Pitch 10 cpi, Default = 1 7 .1 cpi IBM emulation only . Sets the pitch to be engaged when the printer control panel is set for 10 cpi and the SI [...]

41 1 Make sure the printer is turned OFF . 2 Open the access cover and center the printhead. Chapt er 5: Maint enance Replacing the Ribbon Car tridge Important! Make sure you have the correct replacement ribbon for the your printer . The wrong rib bon will not print when installed in your printer . Ribbon Cartridge Handling • Leave unused ribbon [...]

42 Microline 490/ 491 User’s Guide CAUTION! The printhead may be HO T! 3 Swing the used ribbon cartridge up off the printhead, lift it out, and discard it. 4 Unpack the new ribbon cartridge and install it. Important! Do not remove the ribbon shield (1) from the ribbon! 5 T urn the take-up knob in the direction of the arro w to take up any ribbon [...]

Maintenance 43 Loading Paper Rear Feed Note: If you have any paper in the paper path, r emove it befor e installing rear feed paper . Lock Lever Upper T ractor Cov er Pins Loading Rear Feed P aper from the Back of the Printer Note: These instructions assume you have r eady access to the back of the printer . If you do not, skip down to “Loading R[...]

44 Microline 490/ 491 User’s Guide 3 Grasp the sheet guide. Lift it slightly , then slide it back. 4 Pivot the sheet guide forward and gently rest it against the roller assembly . Careful! If you push the sheet guide too hard against the roller assembly , it may dislodge it. If it does, be sure to reseat the roller assembly before continuing.[...]

Maintenance 45 6 Open the lock levers (1) and move the right tractor ( as viewed from the back of the printer ) to the reference mark (2) matching the width of the paper you are loading. Then close the lock lever on the right tractor: Note: The movement of the right tr actor is limited to ensur e that the paper cover s the paper sensor . 7 Open the[...]

46 Microline 490/ 491 User’s Guide 8 Place continuous forms paper on the first two pins of either tractor . Important! Y ou must k eep the number of paper holes engaged on either pin the same. If you don’ t the paper will sk ew and jam. 9 Close the right tractor cov er . 10 Adjust the left tractor until the holes in the paper are centered on th[...]

Maintenance 47 11 Lower the sheet guide and slide it toward the front of the printer until the marks align. 12 Place the wire guide (“1” in the illustration for the step abov e) in the sheet guide on the pull-up roller assembly . 13 Press FF/LOAD . Note: The factory default setting for the T op of F orm (wher e the printing should be gin) is 1&[...]

48 Microline 490/ 491 User’s Guide Loading Rear Feed Paper from the Front of the Printer Note: These instructions assume you do not have r eady access to the back of the printer . If you do, go back to “Loading Rear F eed P aper fr om the Rear of the Printer” earlier in this chapter . Lock Lever Upper T ractor Cov er Pins 1 Make sure the pape[...]

Maintenance 49 Note: The movement of the left tractor ( as viewed from the front of the printer ) is r estricted to ensur e that the paper covers the paper out sensor . 5 Y ou will find reference marks (1 in illustration belo w) on the printer for the two most common paper sizes: ML490: ML491: 6 Move the left tractor to the position to match your p[...]

50 Microline 490/ 491 User’s Guide 8 Adjust the position of the right tractor to center the holes in the paper on the pins. Then, close its tractor cover and push back the lock lev er . Do not stretch the paper . Note: If the paper is too loose or too tight it can cause jams. 9 Reinstall the sheet guide.[...]

Maintenance 51 10 Place the wire guide (1) in the sheet guide on the pull-up roller assembly . 11 Press FF/LOAD . Note: The factory default setting for the T op of F orm (wher e the printing should be gin) is 1" down fr om the top of the page . T o change the setting , see “T op of F orm (TOF)” in Chapter 3.[...]

52 Microline 490/ 491 User’s Guide 3 Open the acoustic cover (1) and raise the sheet guide to the single-sheet position. Pivot the wire feed guide (2) up into the sheet guide. T op Feed (Single Sheets) Note: If you have continuous form paper in the path, pr ess P ARK to r emove it befor e loading single sheets. 1 Make sure the printer is on and d[...]

Maintenance 53 4 Adjust the paper feed guides (1) for the width of the paper , then place a sheet of paper in the separator . The paper will feed into the printer . Important! If the paper does not feed in, remove it. Check the paper lever position. Mak e sure the ALARM light is on: if it is flashing, hold the SHIFT key and press the CHARACTER PITC[...]

54 Microline 490/ 491 User’s Guide Clearing P aper Jams Rear-Feed P aper Jams 1 T urn of f the printer . 2 Use the platen knob to back the paper all the way out of the printer . CAUTION! Make sure the printer is turned of f before you open the access cover . 3 Open the access cover (1) and remove the pull-up roller assembly (2). Remove an y torn [...]

Maintenance 55 Bits of Paper Stuck in the Paper Path 1 T urn of f the printer . 2 Use the platen knob to back the paper all the way out of the printer . CAUTION! Make sur e the printer is turned off before you open the access cover . 3 Open the access cover (1) and remove the pull up roller assembly (2). Then grasp the tabs (3) on the sheet guide ([...]

56 Microline 490/ 491 User’s Guide 4 Remov e any torn pieces of paper . 5 Fold some continuous-form paper over three times to make a page four sheets thick. Then, load it on the tractors and close and lock the covers. 6 Use the platen knob to draw the quadruple-thick page around the platen. This brings out jammed pieces of paper . 7 Remov e the p[...]

Maintenance 57 Single-Sheet Paper Jams 1 T urn off the printer . 2 Use the platen knob to back the paper out. 3 Open the access cover (1) and remove the pull-up roller assembly (2). 4 Remove any torn pieces from around the carriage. 5 Reinstall the pull-up roller assembly and close the access cover .[...]

58 Microline 490/ 491 User’s Guide Cleaning the Housing Y ou should clean the printer housing ev ery six months (or after about 300 hours of operation). CAUTION! Never use strong solvents or strong detergents on the cabinet—they could damage the housing. 1 T urn of f the printer . 2 Use the platen knob to back the paper out of the printer . CAU[...]

59 Chapt er 6: T roubleshooting General Information Here are some general things to check before proceeding with detailed troubleshooting. • Is the printer plugged in and turned on? • Are the connections (power and interface) secure? • Is the product being operated under the proper ambient conditions? • Does the paper being used meet the sp[...]

60 Microline 490/ 491 User’s Guide Problems / Solutions Problem My wor d pr ocessor files do not print the way I have the menu and fr ont panel set. Solution Remember: • Settings in your software application can override settings in your printer dri ver . • Y our printer dri ver settings can ov erride any settings from the printer menu or pri[...]

Troubleshooting 61 Problem The printer does not print when the computer sends data. Solutions 1 Is the SEL light on? If not, press the SEL ke y . 2 Check that the interface cable is securely connected to both the printer and the computer . 3 If you have the optional serial interface board installed, check to be sure that it is firmly seated in the [...]

62 Microline 490/ 491 User’s Guide Problem Ink smears on the paper when I print narr ow columns. Solution This may be caused by excessive printhead travel from the centering position. Enter the Menu and set the Centering Position to MODE 1. See “Using Y our Printer, Men u Mode. ” For the wide-carriage printer , if MODE 1 doesn't work, tr[...]

Troubleshooting 63 Problem Ther e ar e dots missing in my printouts. Solution The head gap may not be set correctly . T ry moving the headgap lev er to a lower setting. If that doesn’t help, the printhead may be damaged; call for service. Problem The ALARM light is flashing. Solution T r y turning the printer of f and then back on again. If the l[...]

64 Microline 490/ 491 User’s Guide Problem The printer needs paper . The ALARM is not on. I can’t load paper . Solution 1 Press and release the SEL key . 2 Press and hold the SHIFT key and press the RESET / CHARA CTER PITCH key . 3 The ALARM light comes on and you can now load paper . Problem Continuous-form paper sticks to the sheet guide. Sol[...]

65 Appendix A: P ar ts & Accessories Purchasing Parts & Accessories Before you purchase, know your printer model number (see the front of the unit) and have the correct part number and description of the item. Item descriptions and part numbers are provided in this section. • Consult the dealer where your purchased your printer . • Loca[...]

66 Microline 490/ 491 User’s Guide Replacement Parts Item Part Number Both Models Ribbon Cartridge ( ) ------------------------------- 42377801 Platen Knob ( ) ------------------------------------- 51902220 Power Cord ( ) ------------------------------------- 56631801 Model ML490 Printhead ( ) ---------------------------------------- 42124201 Acc[...]

Accessories 67 Accessories Option Part Number Model ML490 Pull T ractor, T op-Mount ( ) ----------------------- 70030501 Push T ractor , Bottom-Mount ( ) ----------------- 70030701 Roll Paper Stand ( ) ------------------------------- 70023301 Model ML491 Pull T ractor, T op-Mount ( ) ----------------------- 70030601 Push T ractor , Bottom-Mount ( )[...]

68 Appendix B: Print er Control Codes This section lists the most commonly used printer control codes. Y ou will find a comprehensi ve listing of the control codes (English only), on your Printer CD. T o access it: 1 Place the CD in your CD-ROM drive and wait for it to AutoPlay . 2 Select your printer model, then click Continue . 3 Click Documentat[...]

Control Codes 69 Epson L Q Commands (Continued) Epson Command ASC II Decimal Character Style Normal ESC q 0 27 113 48 Outline ESC q 1 27 113 49 Shadow ESC q 2 27 113 50 Outline with Shadow ESC q 3 27 113 51 Delete D E L 127 Double Height On ESC w 1 27 119 49 or ESC US 0 or 27 31 48 Double Height Of f ESC w 0 27 119 48 or ESC US 1 or 27 31 49 Double[...]

70 Microline 490/ 491 User’s Guide Epson L Q Commands (Continued) Epson Command ASC II Decimal Line Feed, Execute w/ Carriage Return L F 10 n/180" (n = 0 to 255) ESC J n 27 74 n n/360" (n = 0 to 255) ESC ] n 27 93 n Reverse, n/180" (n = 0 to 255) ESC j n 27 106 n Line Spacing, Set n/360" (n = 0 to 255) ESC + n 27 43 n or ESC [[...]

Control Codes 71 Epson L Q Commands (Continued) Epson Command ASC II Decimal Print Speed Half-Speed On ESC s 1 27 115 49 Half-Speed Off ESC s 0 27 115 48 Print Suppress Mode On D C3 19 Print Suppress Mode Off DC1 1 7 Proportional Spacing On ESC p 1 27 112 49 Proportional Spacing Off ESC p 0 27 112 48 Skip Over Perforation ON ESC N n 27 78 n (n = 1 [...]

72 Microline 490/ 491 User’s Guide IBM Proprinter X24e / XL24e and I BM X24e AGM / XL2 4e A GM Commands IB M Command AS CI I Decimal Backspace BS 8 Cancel CAN 24 Carriage Return CR 13 Character Pitch, Select 10 cpi DC2 18 12 cpi ESC : 27 58 15 cpi ESC g 27 103 Condensed Print ESC SI, or SI 27 15, or 15 Character Style Normal ESC q 0 27 113 48 Out[...]

Control Codes 73 IBM Commands (continued) IBM Command ASC II Decimal Print One Character from IBM Set III (n = 0 to 255) ESC ^ n 27 94 n Italic Printing On ESC % G 27 37 71 Italic Printing Of f ESC % H 27 37 72 Line Feed, Execute w/ Carriage Return LF 10 n/180" A GM only (n = 1 to 255) ESC J n 27 74 n n/216" PPR only (n = 0 to 255) ESC J [...]

74 Microline 490/ 491 User’s Guide IBM Commands (Continued) IBM Command ASC II Decimal Paper Out Sensor Off ESC 8 27 56 Paper Out Sensor On ESC 9 27 57 Print Quality / Font Select LQ Roman ESC k 0 27 107 48 Select LQ Swiss ESC k 1 27 107 49 Select LQ Courier ESC k 2 27 107 50 Select LQ Prestige ESC k 3 27 107 51 Select LQ Orator ESC k 7 27 107 55[...]

75 Appendix C: Specifications Note: Specifications ar e subject to change without notice . Print Method Impact dot matrix Printhead 24 pins, 0.20 mm (0.0079") diameter , with thermal protection Interfaces Standar d : Centronics parallel, IEEE-1284 compliant USB 1.1 Optional : RS-232C Serial Ethernet Print Servers: 6120i 10/100 Base-TX Internal[...]

76 Microline 490/ 491 User’s Guide Emulations (co-resident) • Epson LQ • IBM Proprinter X24e / XL24e • IBM X24e A GM / XL24e A GM Print Speed Mode Pi tc h Speed High Speed Draft (HSD) 10 cpi* 420 cps† Utility 10 cpi 315 cps 12 cpi 378 cps 15 cpi 472 cps 17.1 cpi 269 cps 20 cpi 315 cps Letter Quality (LQ) 10 cpi 105 cps 12 cpi 126 cps 15 c[...]

Specifications 77 Resident Fonts Print Quality Available Fonts Letter Quality Courier , Gothic, Or a tor , Prestige, Roman, Swiss, Swiss Bold Utility Gothic Bar Codes • Code 39 • UPC A, UPC E • EAN 8, EAN 13 • Interleaved 2 of 5 • Code 128 • Postnet Resident T ypefaces Mode/Font Size: Style LQ Courier 10 & 12 cpi: Normal, Superscrip[...]

78 Microline 490/ 491 User’s Guide P aper Specifications: M L490 Single (Cut) Sheets Feed: T op Only W eight: 14 to 24 lb. US Bond (52.6 to 90 g/m 2 ) W idth Range: 7.2" to 8.5" (183 to 216 mm) Single-part, continuous forms Feed: Rear, Bottom* W eight: 12 to 24 lb. US Bond (45 to 90 g/m 2 ) W idth Range: 3" to 10" (76 to 254 m[...]

Specifications 79 P aper Specifications: M L49 1 Single (Cut) Sheet Feed: T op Only W eight: 14 to 24 lb. US Bond (52.6 to 90 g/m 2 ) W idth Range: 7.2" to 14.3" (182.8 to 363.2 mm) Single-part, continuous forms Feed: Rear, Bottom* W eight: 12 to 24 lb. US Bond (45 to 90 g/m 2 ) W idth Range: 3" to 16" (76.2 to 406.4 mm) Carbonl[...]

80 Microline 490/ 491 User’s Guide Environmental Requirements T emperature Operating: 41 to 95°F (5 to 36°C) Storage: 14 to 122°F (-10 to 50°C) Humidity Operating: 20 to 80% RH Storage: 5 to 95% RH Electrical Requirements • 120 volts ac, (+6%, -15%) 50 or 60 Hz (±2%) 78 W T ypical, 10 W idle • 230 ac, (+15%, -14 %) 50 or 60 Hz (±2%) 78 [...]

81 Appendix D: Installation Location • Place your printer on a firm, solid surface. • Allow enough space around the printer to easily access the platen knob and the various paper feed paths. • Make sure a suitable grounded power outlet is available nearby . Unpack • If any items are missing, contact your dealer immediately . • Keep your p[...]

82 Microline 490/ 491 User’s Guide 1 Remove any packing tape, then grasp the tabs (1) at either end of the access cover and pivot it toward the front of the printer as far as it will go. 2 Remove the printhead shipping restraint. 3 Remove the shipping restraint from the pull-up roller assembly (1).[...]

Installation 83 4 Use the tabs (1) to lift and remove the sheet guide, then remove the shipping restraint. 5 Reinstall the sheet guide: insert the clips on either side of the separator into the notches marked with a triangle, then press down to secure the separator in place.[...]

84 Microline 490/ 491 User’s Guide CAUTION! The printhead may be HO T! 3 Unpack the new ribbon cartridge and install it on the printhead. Important! Do not remove the ribbon shield (1) from the ribbon! 4 T urn the take-up knob (1) in the direction of the molded-in arrow to take up any ribbon slack. 5 Close the access cover and turn the printer on[...]

Installation 85 P ower Connection 1 Make sure both the printer and the computer ar e OFF . 2 Plug the power cord into the back of the printer , then into a grounded outlet. 3 T urn on the printer . Computer Connections P arallel (LPT): I EEE 1 2 84 • Requires bidirectional cable, max. length 6 ft. (1.8 m), not supplied. • Printer has 36-pin soc[...]

86 Microline 490/ 491 User’s Guide USB: Specification 1.1 Compliant • Requires USB 1.1 cable, maximum length 19.7 ft. (5 m), not supplied. • Printer has USB “B” receptacle. 1 Make sure the printer and computer are both turned off . 2 Attach a suitable USB cable to the printer . Then attach the cable to your computer . 3 T urn the computer[...]

Installation 87 T esting the Printer • Font Sample T est • Rolling ASCII T est • Hexadecimal Dump Mode F ont Sample T est Important! W ide car r ia g e Model ML491: If you are using 8.5" paper to run the tests, make sure the paper width selection in the printer menu is set to 8.5 inches. Otherwise, printing on the platen may damage the p[...]

88 Microline 490/ 491 User’s Guide Rolling AS CI I T est Important! W ide car r ia g e Model ML491: If you are using 8.5" paper to run the tests, make sure the paper width selection in the printer menu is set to 8.5 inches. Otherwise, printing on the platen may damage the printer . See Chapter 4: Menu Mode for more information. The Rolling A[...]

Installation 89 Hexadecimal Dump Mode When the printer is placed in the Hexadecimal Dump Mode, all data received, including text and printer commands, is printed in both hexadecimal and ASCII format. For example, the following line of BASIC code LPRINT CHR$ (27);”0”;CHR$ (30);”This is an example of a hexadecimal dump.” would print like this[...]

90 Microline 490/ 491 User’s Guide Loading the OKI Driver Parallel Interface 1 Insert the CD into your CD-R OM drive. Note: If the CD does not A utoPlay , click Start → Run → Br owse, then bro wse to your CD-ROM drive , double-click Install.exe and click OK. 2 Select your printer model. 3 When the Menu Installer window appears, click the Prin[...]

91 A Accessories ............................................. 67 Alignment problems ................................. 9 ASCII T est .............................................. 8 8 Auto Carriage return ............................... 3 5 Auto LF (Line Feed) ........................ 32, 35 Auto Select .............................................[...]

92 Microline 490/ 491 User’s Guide F Factory defaults, menu mode ................. 27 Font Sample T est .................................... 8 7 Fonts Embedded Printer Commands ........... 61 Resident ............................................. 77 Selecting ............................................ 39 Forms T ear -Off .......................[...]

Index 93 O Operator Panel Function ......................... 64 Options, purchasing ................................ 65 Orator font .............................................. 77 P Page Length Rear Feed ........................................... 30 T op Feed ............................................ 31 Page W idth ...........................[...]

94 Microline 490/ 491 User’s Guide Resolution (Graphics) ............................. 76 Ribbon Cartridge Replacement Part No. ........................ 66 Replacing ........................................... 41 Ribbon Shield ........................... 42, 62, 84 Roll Paper Stand ..................................... 67 RS-232C Serial Interface[...]