HP Officejet Pro 8000 - A811 - Manual (Page 49)

6. Wipe the electrical contacts on the printhead but do not touch the nozzles.
NOTE: The electrical contacts are small copper-color squares, grouped on
one face of the printhead.
The nozzles are on a different face of the printhead. Ink is visible on the
nozzles.
CAUTION: Touching the nozzles can cause permanent nozzle damage.
CAUTION: Ink can permanently mark clothing.
7. After cleaning, place the printhead on a sheet of paper or paper towel. Make sure
the nozzles are facing up and are not in contact with the paper.
8. Clean the electrical contacts in the printhead slot inside the printer with a clean,
dry, soft and lint-free cloth.
9. Plug in the power cord and turn on the printer. The control panel should indicate
that the printhead is missing.
10. Insert the printhead into its color-coded slot (the label on the printhead must match
the label on the printhead latch). Press down firmly on the printhead to ensure
proper contact.
11. Where necessary, repeat the steps for the remaining printheads.
Solve print quality problems 45