HP 1055CMHP - Manual (Page 70)

HP No.80 Ink Supplies Troubleshooting
3-14
HP DesignJets 1050C and 1055CM Printers Service Manual
Replace Printhead The front panel displays a warning, meaning that the printhead has
quite a few nozzles operating incorrectly. There is a risk that media
could be wasted. The printer will stop at the beginning of every print
job and the front panel will display:
Press the
↓
or
↑
down key to select YES or NO. Press the Enter
key. If you select YES the print job will be cancelled and a
replacement will be started. If you say NO, the printer will continue
printing. Next time you print, the same message will appear until
you select YES (Replace).
Failed This message generally indicates that the printhead must be
replaced. This situation must be corrected before the printer will
operate. However, this problem may be corrected as follows:
1 Reseat the printhead.
2 Clean the Carriage and Printhead flex circuits using the Carriage
Interconnect Wiper
⇒
Page 3-18
.
3 If after reseating and cleaning the printhead, the failed message
disappears but then reappears later, replace the printhead.
NOTE If all 4 Printheads have the Status "Failed", it is possible that the
Carriage Assembly is faulty.
Front panel displays Ready/Replace
Draft Normal Best
Print Quality is
Affected Print Quality is maintained but the printer changes the
printing process to compensate for an ageing
printhead. Subsequently the printer will print slower. Printer will try to
compensate for an
ageing printhead
Speed not affected Speed is affected Speed not affected
Warning! Printhead
quality degrading select
YES to replace failing
printheads
YES (Replace)
NO (Continue)