Ink Supplies Troubleshooting

If you have cleaned the printheads using the Clean printheads procedure from the front panel and are still experiencing image quality problems, you can try cleaning the printhead nozzles manually using the following

procedure.

This is a delicate process and may damage the printhead. Do not touch the electrical connections on the backside of the printhead.

You must remove the printhead (see Changing a Printhead on page 1-47) 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.

HP Designjet T Series — Service Manual

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