Zebra Technologies TLP 3844-Z Printer has failed its power on self test Post, Print head is open

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3.The printer has failed its power on self test (POST).

■If this error occurs right after you turn on the printer, contact an authorized reseller for assistance.

There is a shortage of memory.

■If this error occurs after you have been printing, turn the printer power off and on. Then, resume printing.

4.The printer is receiving data.

■As soon as all of the data has been received, the status LED will turn green; then, the printer will automatically resume operation.

5.Either the media or ribbon is out.

■Load a roll of media, following the instructions in “Loading the Media” on page 9. Then, press the feed button to resume printing.

■Load a roll of ribbon, following the instructions in “Loading the Ribbon” on page 11. Then, press the feed button to resume printing.

The print head is open.

■Close the top cover. Then, press the feed button to resume printing.

6.The printer is paused.

■Press the feed button to resume printing.

36	980441-001 Rev. A

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Contents Users Guide Thermal Printers980441-001 Rev. a Proprietary Statement Battery Shock HazardMedia and Ribbon Static DischargeContents Operation & Options Universal Serial Bus USB Connector 980441-001 Rev. a Introduction HelloWhat’s 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 Loading Ribbon Install the Ribbon Supply RollInstall the Take-Up Core Attach and Tighten the Ribbon Auto Calibration Power Switch Operator ControlsFeed Button Status LightPrinting a Test Printout 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 Iitm CommunicationsSC Command Defaulting the Serial ParametersAdjusting the Print Speed Adjusting the Print WidthAdjusting the Print Darkness Operation & Options Thermal PrintingReplacing a Partially Used Transfer Ribbon Replacing SuppliesAdding a New Transfer Ribbon Printing in Peel-Mode Printing on Fan-Fold Media Using the Cutter Option 980441-001 Rev. a Maintenance CleaningMedia Path Considerations Cleaning Card ConsiderationsPrint Head Considerations Lubrication Platen ConsiderationsRemoval AssemblyReplacing the Platen Replacing the Print Head Thermal-Transfer TLP Model RemovalAssembly 980441-001 Rev. a Troubleshooting ResolutionsPrinter is not receiving power Printer is on and in an idle statePrinter has failed its power on self test Post There is a shortage of memoryPrinter is receiving data Either the media or ribbon is outFlash memory is not programmed Print head is under temperaturePrint head is over temperature Print Quality Problems Ribbon sensor settings did not printNo print on the label Printed image does not look rightLabel format was sent to, but not recognized by, the printer Manual Calibration Recalibration Troubleshooting TestsPrinting a Configuration Label Resetting the Factory Default Values Communications DiagnosticsPower Off Mode Communications Diagnostics Mode Feed Button Modes980441-001 Rev. a Specifications Physical SpecificationsPrinting Specifications AppendixMedia Specifications Ribbon Specifications for TLP modelFont/Code Specifications Zebra Programming Language ZPLAgency Approvals OptionsUniversal Serial Bus USB Connector InterfacesParallel Interface Pin No DescriptionLooking into the Printer’s RJ-45 Modular Connector ZebraNet PrintServer II for Ethernet NetworksSerial RS-232 Connector Connecting the Printer to a DTE Device 980441-001 Rev. a Index Cable calibrationQuality problems Voltage Page