User ManualTable of ContentsAbout This Document5Who Should Use This Document6How This Document Is Organized6Contacts7Document Conventions8Contents9Introduction13GC420t™ Thermal Printers14What’s in the Box?15Unpack and Inspect the Printer15Your Printer16Printer Features17Operator Controls18Getting Started21Attaching Power22Loading Roll Media23Preparing Media23Placing the Roll in the Media Compartment24Loading Transfer Ribbon27Printing a Test (Printer Configuration) Label31Pre-install Windows® Printer Drivers32Connecting your Printer to a Computer34Interface Cable Requirements34After Your Printer is Connected39Print Operations41Determining Printer Configuration42Long Term Printer In-activity or Storage42Thermal Printing42Modes of Printing43Print Media Types43Determining Thermal Media Types45Replacing Supplies45Adding a New Transfer Ribbon45Replacing a Partially Used Transfer Ribbon46Adjusting the Print Width46Adjusting the Print Quality46Media Sensing47Ribbon Overview48When to Use Ribbon48Coated Side of Ribbon48Printing on Fan-Fold Media50Printing with Externally Mounted Roll Media52Fonts and Your Printer53Localizing the Printer with Code Pages53Identifying Fonts in Your Printer54Stand Alone Printing55Sending Files to the Printer56Print Meter56Printer Options57Label Dispenser Option58Zebra® KDU — Printer Accessory61KDU Plus™ — Printer Accessory62ZBI 2.0™ — Zebra Basic Interpreter63Maintenance65Cleaning66Cleaning the Printhead67Media Path Considerations68Platen Cleaning and Replacement70Other Printer Maintenance72Replacing the Printhead73Troubleshooting77Status Light Descriptions78Status Light Error Resolutions79Print Quality Problems81Manual Calibration84Troubleshooting Tests85Printing a Configuration Label85Recalibration85Resetting the Factory Default Values86Communications Diagnostics86Feed Button Modes88Appendix: Interface Wiring91Universal Serial Bus (USB) Interface92Parallel Interface93Serial Port Interface94Appendix: Dimensions95External GC420t™ Printer Dimensions96Appendix: ZPL Configuration99Managing the ZPL Printer Configuration100ZPL Configuration Status to Command Cross-reference101Printer Memory Management and Related Status Reports104ZPL Programming for Memory Management104Size: 4.6 MBPages: 106Language: EnglishOpen manual