HP 1055CM manual Carriage Assembly is faulty, Front panel displays Ready/Replace Draft Normal Best

HP No.80 Ink Supplies Troubleshooting

Front panel displays Ready/Replace
Draft		Normal	Best
Print Quality is		Print Quality is maintained but the printer changes the	Printer will try to
Affected		printing process to compensate for an ageing	compensate for an
		printhead. Subsequently the printer will print slower.	ageing printhead
Speed not affected	Speed is affected		Speed not affected
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:
		Warning! Printhead
		quality degrading select
		YES to replace failing
		printheads
		YES (Replace)
		NO (Continue)
		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:

1Reseat the printhead.

2Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper ⇒ Page 3-18.

3If 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.

3-14 HP DesignJets 1050C and 1055CM Printers Service Manual