Zebra Technologies GC420t manual Adjusting the Print Width, Adjusting the Print Quality

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Adjusting the Print Width

Replacing a Partially Used Transfer Ribbon

To remove used transfer ribbon, perform the following steps.

1.Cut the ribbon from the take-up roll.

2.Remove the take-up roll and discard used ribbon.

3.Remove the supply roll and tape the end of any fresh ribbon to prevent it from unwrapping. When reinstalling a partially used supply roll, tape the cut end onto the empty take-up roll.

Adjusting the Print Width

Print width must be set when:

•You are using the printer for the first time.

•There is a change in media width.

Print width may be set by:

•The Windows printer driver or application software such as ZebraDesigner™.

•The five-flash sequence in Feed Button Modes on page 76.

•Controlling printer operations with ZPL programming; refer to the Print Width (^PW) command (consult your ZPL Programming Guide).

•Controlling printer operations with EPL Page Mode programming, refer to the Set Label Width (q) command (consult your EPL Programmer’s Guide).

Adjusting the Print Quality

Print quality is influenced by the heat (density) setting of the printhead, the print speed, and the media in use. Experiment with these settings to find the optimal mix for your application. Print quality can be set with the Zebra Setup Utility’s ‘Configure Print Quality’ routine.

Note • Media manufactures may have specific recommendations for speed settings for your printer and the media. Some media types have lower maximum speeds than your printer’s maximum speed.

The relative darkness (or density) setting can be controlled by:

•The six-flash sequence in Feed Button Modes on page 76. This will overwrite any ZPL and EPL programmed darkness/density settings.

•The Set Darkness (~SD) ZPL command (consult your ZPL Programming Guide).

•The Density (D) EPL command (consult your EPL Programmer’s Guide).

If you find that the print speed needs to be adjusted, use:

•The Windows printer driver or application software such as ZebraDesigner™.

•The Print Rate (^PR) command (consult your ZPL Programming Guide).

•The Speed Select (S) command (consult your EPL Programmer’s Guide).

P1052686-001

GC420t™ User Guide

5/22/2012

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Contents Zebra GC420t P1052686-001 GC420t User Guide 22/2012 Iii FCC Compliance Statement Contents About This DocumentWho Should Use This Document How This Document Is OrganizedContacts Mail Back Technical LibraryDocument Conventions Icons UsedContents Print Operations Appendix Dimensions P1052686-001 GC420t User Guide 22/2012 Introduction GC420t Thermal Printers What’s in the Box? Unpack and Inspect the PrinterYour Printer Opening the printerPrinter Features Operator Controls Power Switch Feed Button Status LightClosing the printer Contents Getting StartedAttaching Power Loading Roll Media Preparing MediaPlacing the Roll in the Media Compartment Loading Roll Media Guides Loading Transfer Ribbon Loading Transfer Ribbon Loading Transfer Ribbon Loading Transfer Ribbon Printing a Test Printer Configuration Label Pre-install Windows Printer Drivers Universal Serial Bus USB Device Communications Serial Port and Windows operating systemsConnecting your Printer to a Computer Interface Cable RequirementsUSB Interface Requirements Serial Communications AutobaudEPL Y Command Parallel Port Testing Communications by Printing After Your Printer is ConnectedAfter Your Printer is Connected Print Operations Long Term Printer In-activity or Storage Determining Printer ConfigurationThermal Printing Modes of Printing Print Media TypesTypes of Media Roll and Fanfold Media Determining Thermal Media Types Replacing SuppliesAdding a New Transfer Ribbon Adjusting the Print Quality Adjusting the Print WidthReplacing a Partially Used Transfer Ribbon Media Sensing Ribbon Overview When to Use RibbonCoated Side of Ribbon Ribbon Test with Adhesive Ribbon Scratch TestPrinting on Fan-Fold Media Printing on Fan-Fold Media Printing with Externally Mounted Roll Media Externally Mounted Roll Media ConsiderationsFonts and Your Printer Localizing the Printer with Code PagesIdentifying Fonts in Your Printer ZPL FontsStand Alone Printing Sending Files to the Printer Print Meter Printer Options Label Dispenser Option XA MMP XZLabel Dispenser Option Label Dispenser Option Zebra KDU Printer Accessory KDU Plus Printer Accessory ZBI 2.0 Zebra Basic Interpreter ZBI 2.0 Zebra Basic Interpreter Maintenance Cleaning See Cleaning the Printhead onCleaning the Printhead Media Path Considerations Sensor Cleaning Platen Cleaning and Replacement Maintenance Other Printer Maintenance Replacing the Printhead Maintenance Unplug both bundles of printhead wires from their connectors Maintenance Troubleshooting Status Light Descriptions Status Light Error Resolutions Ribbon is out Printhead is over temperatureMedia is out Printhead is openNo print on the label Print Quality ProblemsPrinted image does not look right Print Quality Problems Is the printer in pause mode? If so, press the Feed button Manual Calibration Printing a Configuration Label Troubleshooting TestsRecalibration Resetting the Factory Default Values Communications DiagnosticsCommunications Diagnostics Feed Button Modes Flash Sequence ActionPower On Modes Feed Button Modes Appendix Interface Wiring Universal Serial Bus USB Interface Parallel Interface HostConnecting the Printer to a DCE Device Serial Port InterfaceAppendix Dimensions External GC420t Printer Dimensions Optional Label Dispenser External GC420t Printer Dimensions Appendix ZPL Configuration Managing the ZPL Printer Configuration ZPL Printer Configuration FormatZPL Configuration Status to Command Cross-reference Configuration Label PrintoutDefault 65536k.......B only displays this if installed Printer Memory Management and Related Status Reports ZPL Programming for Memory Management~WC Printer Memory Management and Related Status Reports