HP 1050c Service Manual - Page 74

HP No.80 Ink Supplies Troubleshooting NOTE Carriage Interconnect Wiper When you order the Carriage Assembly, the Carriage Interconnect Wiper will come with it. All the instructions needed to use the Carriage Interconnect Wiper will be packaged with the part. 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 printhead carriage. Included with the HP DesignJet Printer, is a Carriage Interconnect Wiper. 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 printhead carriage and the printhead. If the front panel displays the message "Reseat" or possibly "Failed" next to the offending printhead, try cleaning the flex circuits of the carriage and the Printheads. NOTE Do not touch, wipe or attempt to clean the printhead nozzles. This can damage the printhead and reduce print quality. 3-18 HP DesignJets 1050C and 1055CM Printers Service Manual