Zebra Technologies R402 manual Print Quality Problems, No print on the label

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Print Quality Problems

No print on the label.

■You must use the correct media for the method of printing you require. When printing without a ribbon, you must use direct thermal media. When using ribbon, you must use thermal transfer media. The printer's ribbon sensor detects motion of the supply spindle.

■Is the media loaded correctly? Follow the instructions in “Loading the Media” on page 9.

The printed image does not look right.

■The print head is dirty. Clean the print head according to the instructions on page 41.

■The print head is under temperature.

■Adjust the print darkness and/or print speed. Refer to the six-flash sequence in “Feed Button Modes” on page 52, or the ^PR and ~SD commands in the ZPL II Programming Guide.

■The media being used is incompatible with the printer. Be sure to use the recommended media for your application, and always use Zebra-approved labels and tags.

There are long tracks of missing print (blank vertical lines) on several labels.

■The print head is dirty. Clean the print head according to the instructions on page 41.

■The print head elements are damaged. Replace the print head (see “Replacing the Print Head” on page 40).

The ribbon sensor settings did not print.

■The printer is set for direct thermal printing; use the ^XA^MTT^XZ command to reset the printer for thermal transfer printing and calibrate again.

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Contents R402 Users GuidePage Proprietary Statement Page Contents Operation & Options Appendix 980389-001 Rev. a Introduction HelloWhat’s in the Box? Inspecting the Printer Opening the printerInspecting the Printer Closing the printer Reporting Damage Getting Started Modes of PrintingAttaching Power Supply Loading Roll Media Placing the Roll in the Media CompartmentAdjusting the Guides Using the Optional Media Adapter Plates Install the Ribbon Supply Roll Install the Take-Up CoreLoading Ribbon Attach and Tighten the Ribbon Auto Calibration Feed Button Power SwitchOperator Controls Status LightPrinting a Test Label Hooking Up the Printer and Computer Parallel Interface RequirementsInterface Cable Requirements Adjusting the Print Speed Adjusting the Print WidthAdjusting the Print Darkness Communicating with the PrinterOperation & Options Thermal PrintingReplacing Supplies Adding a New Transfer RibbonReplacing a Partially Used Transfer Ribbon Printing in Peel-Mode Printing on Fan-Fold Media Rfid Guidelines Supported Transponders Texas Instruments Tag-it Transponders Philips ICode Transponders Philips ICode BlocksInside Technologies Picotag Transponders Inside Technologies Picotag 2KISO-15693 Transponders ZPL II Commands for Rfid WT Write TagRT Read Tag RT Read Tag RS Rfid Setup RI Rfid Get Tag Unique ID Sample of Rfid Programming WT6FDZebraFS FO100,100A0n,60FN0FS Page Maintenance CleaningLubrication Parts List DescriptionPage Replacing the Print Head RemovalCleaning the Print Head Page Printer is not receiving power TroubleshootingResolutions Printer is on and in an idle statePrinter is receiving data Printer has failed its power on self test PostThere is a shortage of memory Either the media or ribbon is outPrint head is under temperature Print head is over temperatureFlash memory is not programmed No print on the label Print Quality ProblemsRibbon sensor settings did not print Printed image does not look rightLabel format was sent to, but not recognized by, the printer Void messages are printed across media Rfid SymptomsRfid tags generally not programmed Nothing is printedManual Calibration Troubleshooting Tests Printing a Configuration LabelRecalibration Resetting the Factory Default Values Communications DiagnosticsPower Off Mode Communications Diagnostics Mode Feed Button ModesPhysical Specifications AppendixMedia Specifications Font/Code Specifications Options Parallel Interface Technical Information Page Index Cable calibrationQuality problems Voltage Write tag command Page