JW220-UM-251 - Graphtec

9. TROUBLESHOOTING9.3 Printing OperationsSymptom Verification item SolutionThe printer monitor displays “TheReplace the print head.black or the color print head hasreached the end of its life”.The printer monitor displays “Noprint head”.(1) Is the print head installedsecurely?No: Install the print headsecurely.Yes: Replace the print head.Or, replace the carriage unit.The printer monitor displays “Auto (1) Are you using th correct No: Use the correct paper.alignment failed”.paper?Try the alignment operationonce again.Yes: Verify item (2).(2) Does the sensor on the No: Replace the carriage unit.carriage unit light when it isaligning the print head?The printer monitor displays (1) Are the print heads installed No: Install the print heads“Black or color print head error”. securely?securely.Yes: Replace the print head(s).Or, replace the carriage unit.Dot are missing.(1) Does the print head containenough ink?No: Replace the printhead.Yes: Verify item (2).(2) Are there any foreign bodies Yes:Perform head cleaning fromon the print head?the print monitor.No: Verify item (3).(3) Are there any foreign bodies Yes: Clean the wiper.on the wiper?No: Replace the printhead.Vertical print line shift(s).(Direction of paper feed)(1) Did you perform Autoalignment from the printmonitor?No: Perform Auto alignment fromthe print monitor.Yes: Verify item (2).(2) Is the print head installedsecurely?No: Install the print headsecurely.Yes: Verify item (3).(3) Is the print line shifted onlyon the black or color printYes: Replace the print head.No: Verify item (3).head?(4) Is the print line shifted onboth print heads?Yes: Check the Y slider parts(Belt, Pulley, Motor).Replace the necessarypart(s).Vertical white lines appear in the (1) Are there any scratches or Yes:Clean the encoder strip orprinting.Feed directionstains on the encoder strip? replace it.JW220-UM-251-93709-4