HP B8C95AA Bedienungsanleitung PDF herunterladen (Seite 58)

100

101

Troubleshooting

1-54 HP Designjet T Series — Service Manual

4 Clean the electrical connections on the backside of the printhead with a lint

free cloth. You can carefully use a mild rubbing alcohol if moisture is needed

to remove residue. Do not use water. You can use the Flex Contacts Cleaning

Tool.

This is a delicate process and may damage the printhead. Do not touch the

nozzles on the bott

om side of the printhead, especially not with any alcohol.

5 Reinsert the printhead.

6 Check the front panel display message. If the problem remains, try a new

printhead

Maintaining and Cleaning the Printheads

Clean the printheads

As long as the printer is kept turned on, an automatic cleaning is performed

perio

dically. This ensures there is fresh ink in the nozzles and prevents

nozzle clogs, which ensures color accuracy.

If you have not already done so, please refer to Horizontal lines across the

image (

banding) and The Image Diagnostics Print before proceeding.

To clean the printheads, press the Menu key to return to the main menu and

sele

ct the Image Quality Maintenance menu icon, then Clean printheads. If

you have gone through the Image Quality Diagnostic print process, you

know which colors are failing. Select to the pair of printheads which contain

the failing colors. If you are not sure which colors to clean, you can also

select to clean all printheads.

Cleaning all printheads takes about nine minutes. Cleaning a single pair of

intheads tak

es about six minutes. Cleaning all printheads uses more ink

than cleaning a single pair.

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