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Clean the electrical connections on a printhead
It is possible that the printer will not recognize a printhead after it has been installed. This can happen when
ink builds up on the electrical connections between the printhead and the printhead carriage. Under these
circumstances, HP recommends that you clean the electrical connections on the printhead. However, routine
cleaning of the connections when no problems are apparent is not recommended.
Use an absorbent lint-free cloth, slightly dampened with isopropyl alcohol, to clean the electrical
interconnects on both the printhead carriage and the printhead if the Reseat or Replace message persists
next to the printhead on the front-panel display.
1. Open the printhead carriage latch and extract the printhead that is causing the problem, as indicated on
the front panel. See
Remove a printhead on page 62.
2. Cover your finger with the cloth and insert it into the printhead slot at the back.
CAUTION: If the carriage remains in the central part of the printer for more than 7 minutes, it
attempts to return to its home position to the right.
3. Rub the cloth against the electrical contacts with a light force along the entire depth of the flex
connector. Try to avoid picking up any ink deposit that may have accumulated on the bottom surface of
the slot.
4. Take special care to clean all contacts thoroughly, including the ones at the lowest point of the
connector.
68 Chapter 5 Handle the ink system ENWW