HP 9600 Series - Manual (Page 31)

3-7 ENWW
To clean the print cartridges manually
Poor contact between the print cartridges and print cartridge cradles may also affect the
quality of the printout. When this occurs, try cleaning the electrical contacts on the print
cartridges and print cartridge cradles:
1 Remove the print cartridge from the printer (see “Installing or replacing the print
cartridges” ).
2 Clean the electrical contacts on the print cartridge cradle with a dry cotton swab.
3 Carefully clean the electrical contacts on the print cartridge with a soft, dry, lint-free cloth.
4 Reinstall the print cartridge.
To prevent damage to the electrical contacts, you should wipe the contacts only once. Do not
wipe the ink nozzles on the print cartridge.