Hand Held Products IT4710 manuale d’uso

™ Quick Check 2D Print Quality Assessment Applies to the following products: IT4410, IT4710, IT4600, IT4800, IT4X80 User’s Guide[...]

Disclaimer Hand Held Products, Inc. d/b/a HHP (“HHP”) reserves the right to make changes in specifications and other information contained in this document without prior notice, and the reader should in all ca ses consult HHP to determine whether any such changes have been made. The info rmation in this publication does not represent a commitme[...]

i Chapter 1 - Introduction User Operation ...................................................................... 1-1 Reading Techniques.............................................................. 1-1 Symbology/Parameter Specifics ........................................... 1-2 2D PQA Reporting .....................................................[...]

ii Symbology .................................................................... 1-19 Useful Row Height ....................................................... 1-19 X-dimension ................................................................. 1-20 Chapter 2 - Quick*View Quick*View Demonstration Software Instructions .............. 2-1 Setting Up t[...]

1 - 1 1 Introduction Two-dimensional Print Quality Assessment (2D PQA), a feature of HHP's image readers, identifies a successfully read symbol and also reports graded mea- surement parameters obtained from the symbol. 2D PQA is not "true" verification in the traditional sense of the word; however it can easily and inexpensively prov[...]

1 - 2 • The hand-held imager has a view finder that projects a bright aiming beam that corresponds to the imager’s horiz ontal field of view. The aiming beam should be centered over the bar code and positioned horizontally over the code (no tilt, skew, or rotation). If th e symbol surface is shiny, the reader may have to be held several degree [...]

1 - 3 2D PQA Reporting Full Report HHP's 2D PQA reporting can be enabled in two different modes: Full Report or Screening. If you are using Quick*View, you can enable Full Report, a listing of all of a sym- bol's identifying informatio n, measurements, and corresponding grades, by typ- ing the following menu command: 2D_PQA1 or by scannin[...]

1 - 4 If your imager is in keyboard wedge mode, enable Screening by scanning the following bar codes. You can exit both Full Report and Scr eening modes by either typing the menu command, 2D_PQA0, if you are using Quic k*View, or by scanning the following bar code: Identifying Symbol Content To identify content or "format" aspects of a sy[...]

1 - 5 While the details are explained belo w, this general format includes: • the encoded data (the usual ou tput message) in the first line. • a banner " >>> PQA from HHP <<<" id entifying the start of the 2D PQA report. • the symbology, its featur es, and approximate size. • graded print quality paramete rs in [...]

1 - 6 {5} [A] < Row Height = 3.1 X {6} [A] < Useful Row Height = 2.5 X (82% Row) {7} [A] < Data Safety Margin = 100% (0 Erasures & 0 Errors) {8} [B] < Edge Accuracy = 59% {9} [C] < Print Growth = -43% of X where: {1} is always the Encoded Message, the usual data output. In this case "This is a representative PDF417 symbol&qu[...]

1 - 7 D if Useful Height >= 1.0 X, else Fo t h e r w i s e In Screening modes, this parameter is reported as "Useful Row Height is Too Short (1.5X)" when that is the case. {7} lists the Data Safety Margin , which is the ratio of the unused error correc- tion words to the recommend ed (!) number of such wo rds. Data Safety Mar- gin can [...]

1 - 8 In rare instances where neither a valid Start nor Stop pattern is measurable, yet the symbol is somehow read, lines {8} a nd {9} are replaced by a message to that effect. The message is either: "[F] < Start/Stop Decode Fails" in a Full Report or "Start/Stop Characters are Bad" in a Screening mode. In Screening modes, it[...]

1 - 9 A if Row Height >= 1.5 X, Fo t h e r w i s e . {6} lists the Data Safety Margin . Because MicroPDF's er ror correction level is fixed, this parameter is just the "Unused Error Correction" and always between 0 and 100%. {7} lists the Edge Accuracy measured in multiple scans through the Row Address Patterns. {8} lists the Prin[...]

1 - 10 Note: The reported X-dimension is appro ximate and based upon use of the IT4410LR at 4.7 in (12 cm) (see "Re ading Techniques" on page 1-1). If you use different image engines, the X-dimension will vary. If you hold the reader closer than 4.7 in (12 cm), it will have the effe ct of reporting a larger than true X-dimension. Conver s[...]

1 - 11 {7} [A] < Data Saf ety Margin = 100% {8} [A] < Horizontal Pri nt Growth = +10% of X {9} [A] < Vertical Print Growth = +12% of X {1} is the Encoded Message . {2} is the Banner heading. {3} identifies the Symbology (DATA MATRIX) and lists the symbol's ECC and size. {4} lists the numbers of Data and Check W or ds , as well as the [...]

1 - 12 {3} QR CODE: Model 2 Vers ion 3 (29 x 29 modules) {4} Mask Pattern Reference #3, Error Correction Level "M" {5} Data Field: 44 data & 26 che cks in 1 block(s) of GF(256) {6} X roughly = 0.025" {7} [A] < Data Safety Margin = 100% {8} [A] < Horizontal Print Growth = +20% of X {9} [A] < Vertical Print Growth = +17% o[...]

1 - 13 {4} X roughly = 0.043" {5} [A] < Data Saf ety Margin = 100% {6} [A] < Horizontal Pri nt Growth = +2% of X {7} [A] < Vertical Print Growth = -1% of X {1} is the Encoded Message . {2} is the Banner heading. {3} identifies the Symbology (MAXICODE) and lists the symbol's Mode. {4} presents an approximate X-dimension . Note: Th[...]

1 - 14 {7} [A] (Ok) < Bar Widths = 0.022 in. {8} [A] (Ok) < Inte r-Bar Gaps = 0.023 in. {1} is the Encoded Message . {2} is the Banner heading. {3} identifies the Symbology , (POSTNET or PLANET Code), and lists also the symbol's size and allowed range of measured width. {4} lists the Bar Sequence , "1" representing a tall bar a[...]

1 - 15 4-S tate Codes The Full Report from a typical scan look s like the following (line numbers have been added in curly brackets): {1} B15AJ6T {2} >>> PQA from HHP <<< {3} 4-STATE(British): 34 Bars, nominally from 38.5 to 42.3 mm. in Width {4} Bar Sequence: ADHTATDAH DDAADADAADTHTADHHDATHTADH {5} [A] (Ok) < "Tall" [...]

1 - 16 Note: For the Canadian and Australian 4-State symbologies only, any bar error that has invoked their error co rrection triggers an additional PQA parameter line: "[F] < One or more Bars are in Error!" in a Full Report or "One or more Bars are in Error!" in a Screening mode. Parameter Interpretation A verage Bar/Gap W i[...]

1 - 17 Bar Sequence Bar Sequence is the bar hei ght pattern within a height modulated, multi-state, postal-type symbology. In a 2-state symbol, a "1" represents a tall or full height bar and a "0" represents a shor t or half height bar. In a 4-state symbol, "A" rep- resents the ascending bars, "D" the descend[...]

1 - 18 Encoded Message The encoded message is the information (alpha, numeric, and/or control char- acters) or message contained within the bar code symbol and output as part of the decoding process. Th is information precedes th e calculated PQA parame- ters. This information must be manually compared to the characters that should be encoded. Erro[...]

1 - 19 Module Errors Module Errors are individual errors with in fixed pattern/data areas. Although often benign, Module Errors in the fixed regions of a symbol can signal a fault that, in some instances, will prevent pr oper decoding. They can generally be corrected by using a larger X-dimension and/or cleaning up the print process to eliminate st[...]

1 - 20 height, giving more leeway to symbols printed with above minimum row heights (e.g., 4.0 X). A poor grade here is correc ted by either stretc hing the symbol ver- tically or correcting the print conditio n (e.g., turning down the thermal burn set- ting or adjusting inking) that causes rows to interfere. X-dimension The X-dimension is an appr [...]

2 - 1 2 Quick*View Quick*V iew Demonstration Software Instructions Quick*View is a Microsoft Windows ® program that displays decoded symbol messages and captures images (for inst ance, ID photographs) from the imager. Bar code information and images are displayed in the Quick*View window. Note: For additional information about Qu ick*View, please [...]

2 - 2 8. Double click on the Quickview.exe file. Follow the screen prompts to install the Quick*View program. 9. To start Quick*View, from the Start Menu click on Programs , Quick*View , Quick*View . Note: If you wish, you can create a shortc ut to the Quick*View executable on your desktop. T emporary Quick*V iew Configuration For a quick download [...]

2 - 3 Using the Quick*V iew Software Upon startup, the Quick*View splash screen appears for approximately three seconds. Quick*View will then attemp t to establish communications with the Imager. If Communication Cannot Be Established This message appears if communication cannot be established: Quick*View defaults to com 1 as the comm unications po[...]

2 - 4 Scan Data W indow Once successful communication has been established, you c an scan codes and display the bar code data in a window. Select View - Scan Data Window . As you scan bar codes, the data appears in the Serial Scan Data Window. You can alter the font in this window by using the Font button, or clear all data in the window with the C[...]

3 - 1 3 Customer Suppor t Obtaining Factory Service HHP provides service for all its products through service centers throughout the world. To obtain warranty or non-warr anty service, return the unit to HHP (postage paid) with a copy of the dated purchase record atta ched. Contact the appropriate location below to obtain a Return Material Authoriz[...]

3 - 2 T echnical Assistance If you need assistance installing or tro ubleshooting your imager, please call your Distributor or the nearest HHP technical support office: North America/Canada: Telephone: (315) 685-2476, Option 4 (8 a.m. to 6 p.m. EST) or in the U.S. (800) 782-4263 Fax number: (315) 685-4960 E-mail: support@ HHP .com Europe, Middle Ea[...]

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QC2DPQA-UG Rev B[...]