Lexmark C925 Forms and Bar Code Card Technical Reference Guide - Page 163

Symbology 2of5 Industrial Code 39 Code 39 Extended MSI MSI +CHK10 MSI +CHK10 +CHK10 MSI +CHK11 +CHK10 Typeface 24650T 24670T 24680T 24760T 24761T 24762T 24763T Max characters 388 339 339 454 453 452 452 Note: If bar code image corruption occurs when excessive amounts of data are encoded, then the amount of encoded data should be reduced, or the user should change to a more capable bar code symbology. 4-State postal widths The BCE creates 4-State postal images that may not be exactly the same as HP BDP or the LXK BCC. The number of bars and spaces are the same, the proper ascenders and descenders are used, and the bar code scans correctly with a verifier. A change in the BCE to address this minor difference may be implemented in a later version. Note: Exact size compatibility of certain 4-State bar code image sizes with previous Lexmark bar code options is not assured. However, the proper order and placement of the bars and spaces is the same, and the bar code will also scan correctly. If the bar code image is too wide and does not fit within the available space, then users should either resize their form to allow placement of current and previous bar code images, or slightly reduce the size of the image using the available PCL or PostScript controls. If the datastream controls are adjusted for a smaller width, then the corresponding image should be smaller on both current and previous bar code products, and the image should fit within the available space. HRT widths and heights The BCE uses the FreeType font renderer with custom SuchyMIPS-generated fonts to produce the HRT (human-readable text) on bar codes. In certain cases, the HRT may be larger or smaller, or may not be positioned horizontally or vertically exactly as on the HP BDP or the LXK BCC. However, the HRT should be readable, legible, and approximately the same as the target platforms. Deviations 160