Troubleshooting
1-54 HP Designjet T Series — Service Manual
You must remove the printhead (see Changing a Printhead on page 1-46)
and using a cotton swab and a little de-ionized, distilled water, or Carriage
Interconnect Wiper clean the bottom of the printhead until the residue is
removed.
Flex Contacts Cleaning Tool
The Flex Contacts Cleaning Tool is part of the Maintenance Tool Kit which
can be ordered using Part Number Q5669-60690. All the instructions
needed to use the Flex Contacts Cleaning Tool will be packaged with the kit.
Whenever you replace the Printhead, check the empty slots to see if they
need cleaning. In extreme circumstances, when a Printhead is inserted, it is
possible that the Printer will not recognize it due to the build-up of ink on the
electrical connection between the Printhead and the Carriage Assembly.
Included with the printer is a Flex Contacts Cleaning Tool. This tool is
provided in a separate package. It also contains replacement sponges and
an instruction sheet. This tool should be used for cleaning the electrical
interconnects of both the Carriage Assembly and the Printhead.
If the front panel displays the message “Reseat” or “Replace” next to the
offending printhead, try cleaning the flex circuits of the Carriage and the
Printheads using the Carriage Interconnect Wiper.
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