Zebra Technologies Desktop Printer 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. You must use direct thermal media.

■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 31.

■The print head is under temperature.

■Adjust the print darkness and/or print speed. Use the S and D commands in the programming guide.

■The media being used is incompatible with the printer. Be sure to use the recommended media for your application, and always use manufacturer-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 31.

■The print head elements are damaged. Replace the print head (see “Replacing the Print Head” on page 32).

The print head is under temperature.

■Continue printing while the print head reaches the correct operating temperature.

36	980483-001A

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Contents Zebra LP 2844 TM 980483-001A Proprietary Statement Shock Hazard Contents Operation & Options 980483-001A Vii 980483-001A Introduction HelloWhats in the Box? Inspecting the Printer Opening the printerInspecting the Printer Closing the printer Related Documentation Reporting DamageGetting Started Modes of PrintingAttaching Power Supply Loading Roll Media Placing the Roll in the Media CompartmentAdjusting the Guides Power Switch Operator ControlsFeed Button Status LightMedia Length Sensing Hooking Up the Printer and Computer Interface Cable RequirementsUSB Interface Requirements Parallel Interface RequirementsEthernet Interface Requirements Serial Interface RequirementsCommunicating with the Printer Universal Serial Bus USB CommunicationsParallel Communications Internal ZebraNet PrintServer II CommunicationsCommand Serial CommunicationsAdjusting the Print Width Adjusting the Print Quality980483-001A Operation & Options Thermal PrintingReplacing Supplies Printing in Peel-Mode Printing on Fan-Fold Media Using the Cutter Option 980483-001A Maintenance CleaningMedia Path Considerations Cleaning Card ConsiderationsPrint Head Considerations Lubrication Platen ConsiderationsRemoval AssemblyReplacing the Platen Replacing the Print Head Direct-Thermal LP Model RemovalAssembly 980483-001A Troubleshooting What the Status Light is Telling YouPrinter Operation Media Handling Print Quality Problems Print head is under temperatureNo print on the label Printed image does not look rightLabel format was sent to, but not recognized by, the printer Manual Calibration Resetting the Factory Default Values Communications DiagnosticsFeed Button Modes Printer Condition Feed Button ActionInterfaces Universal Serial Bus USB ConnectorAppendix Parallel Interface HostLooking into the Printer’s RJ-45 Modular Connector ZebraNet PrintServer II Internal Ethernet PrintServerSerial RS-232 Connector