HP designjet l65500 Manuale Di Servizio
Tr
ou
bles
hooting
Troubleshooting
89
• Ink System LED Interface Board LEDs ..............................................................................................182
Troubleshoot problems without system error codes................................................................................ 182
• Printer turns on (beeps) ................................................................................................................182
Troubleshoot ink cartridge and printhead issues................................................................................... 183
• Cannot insert a printhead.............................................................................................................183
• The Front Panel recommends replacing or reseating a printhead ........................................................183
• A printhead has overheated .........................................................................................................183
• A printhead has damaged the substrate .........................................................................................184
• Incorrect printhead cleaning roll errors ...........................................................................................184
• How to check the Ink Delivery System.............................................................................................184
• How to check if the primer is working ............................................................................................192
Troubleshooting air leakage in the spindle...........................................................................................194
• How to know where the air leakage is coming from? .......................................................................195
• What to do depending of the air leakage: .....................................................................................195
• If the leakage is coming from the air valve:.....................................................................................197
How to check the capping station...................................................................................................... 197
How to check the media path ........................................................................................................... 199
How to check the Scan Axis movement of the Carriage .........................................................................212
How to check the Printhead Cleaning Roller is functioning correctly.........................................................213
What to do before replacing a printhead ........................................................................................... 221
What to do if the Scan Beam movement is locked and it cannot be moved ............................................. 225
What to do in case of a 'slow IPS PC' or 'IPS being disconnected’? ....................................................... 226
Cannot access from the RIP PC a shared directory on the IPS PC............................................................ 227
Additional troubleshooting of wrinkles on the substrate while printing..................................................... 227
Introduction to Image Quality............................................................................................................ 232
• About service prints and image quality ......................................................................................... 232
• The best image quality................................................................................................................ 232
Printhead Alignment ........................................................................................................................ 233
• Automatic printhead alignment .................................................................................................... 233
• Manual printhead alignment........................................................................................................ 233
• Troubleshooting printhead alignment ............................................................................................ 233
User prints and image quality calibrations .......................................................................................... 234
• Printhead alignment diagnostic print ............................................................................................ 234
• Color calibration diagnostic print ................................................................................................ 237
• Printhead health plot.................................................................................................................. 238
Print a Service Print......................................................................................................................... 239
Read a Service Print ....................................................................................................................... 240
• Substrate expansion plot ............................................................................................................ 240
• Pen to Pen Alignment along the scan axis (scan axis encoder strip) .................................................. 240
• Bidirectional alignment along the scan axis + PRS diagnostics......................................................... 242
• Printhead nozzle health plot ....................................................................................................... 245
Resolving Image Quality Problems.................................................................................................... 248
• Malfunctioning nozzles v.s. malfunctioning drop detector ............................................................... 248
• Further information on Image Quality Issues.................................................................................. 248
3.4 How to view/extract and interpret the service plot...................................................... 249
Viewing the service plot through the IPS.............................................................................................. 249
Extracting the service plot................................................................................................................. 249
Interpreting the Service plot .............................................................................................................. 251
How to extract key files to be used in case you require support from HP.................................................. 262
3.5 How to turn on the trace files of the IPS ...................................................................... 264