HP L65500 manual Troubleshoot print-quality issues, General advice, Banding

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7 Troubleshoot print-quality issues

Print-quality issues

General advice

When you have any print-quality problem:

●To achieve the best performance from your printer, use only genuine HP supplies and accessories, whose reliability and performance have been thoroughly tested to give trouble-free performance and best-quality prints. For details of recommended substrates, see the User's guide.

●Check that the substrate type selected in the HP Internal Print Server is the same as the substrate type loaded into the printer.

CAUTION: If you have the wrong substrate type selected, you could experience poor print quality and incorrect colors, and perhaps even damage to the printheads.

●Check that your substrate has been color-calibrated.

●Check that you are using the correct ICC profile for your substrate and print mode.

●Check that you are using the most appropriate print-quality settings for your purposes (see the User's guide).

●Check that the environmental conditions (temperature, humidity) are in the recommended range (see the User's guide).

●Check that the printheads have been aligned.

●Check whether there are any outstanding printer alerts.

●Avoid touching the substrate while printing is in progress.

Banding

Banding means that your printed image suffers from added horizontal lines as shown (the color of the lines may vary).

34 Chapter 7 Troubleshoot print-quality issues

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Contents HP Designjet L65500 Printer Trademarks Table of contents Software maintenance Front-panel error messages When you need help Enww Safety precautions General safety guidelinesFire hazard Label Explanation Identifies the main earth terminal Emergency stop buttons Check printer status Printer statusPrinter alerts Printer calibration Align the printheadsSubstrate-advance compensation Troubleshoot printhead alignmentColor calibration Color calibration Ink restrictions Color profilesHardware maintenance Maintain the ink cartridgesMaintain the printheads Maintain the substratesClean the carriage cover Check the printheadsClean the carriage rails Hardware maintenance Clean the exterior of the printer Clean the ink depositsClean the line sensor and aerosol inlets Clean the main roller Clean the substrate edge holdersClean the pinch wheels Clean the platenClean the printheads Clean the substrate-advance sensorClean the temperature sensors Maintain the printhead primers Replace the carriage oiler foams Hardware maintenance Replace the line sensor box Replace the printhead cleaning roll and aerosol filters Replace the printhead cleaning rollReplace the printhead cleaning roll and aerosol filters Replace the aerosol filters Move the printer Printer maintenance kits Cleaning kitSoftware maintenance Maintain the HP Internal Print ServerUpdate the firmware Substrate cannot be loaded successfully Troubleshoot substrate issuesSubstrate has jammed Substrate is not attached to the input core Substrate sticks to the platen Ink is still wet when the substrate emergesThere are ink marks on the substrate General advice Troubleshoot print-quality issuesBanding Banding Colors are misaligned Colors are misaligned verticallyPrint is grainy Colors are misaligned horizontallyPrint is smudged Substrate is not flatEdges of objects are rough or blurred Colors look washed outColors are inaccurate Troubleshoot ink cartridge and printhead issues Cannot insert an ink cartridgeCannot insert a printhead Front panel recommends replacing or reseating a printheadPrinthead has overheated Incorrect printhead cleaning roll errorsPrinthead has damaged the substrate Troubleshoot other issues Printer does not printPrinter seems slow HP Internal Print Server cannot detect the printerPrint job files have not been properly deleted Upgrade the HP Internal Print ServerColor calibration fails Front-panel error messages Front-panel errors2Numerical error codes Icon, then Carriage beam position Carriage system recovery Correctly inflated. The substrate will be unloaded When you need help DocumentationHP Proactive Support HP Customer CareHP Customer Care Centers Service information Preset creation flowchart Index Enww