HP 600 - Manual (Page 61)

Care and maintenance 53
Maintain the print cartridge
4. Reinstall the cartridge and close the cover and panel.
If you spend a long time cleaning the cartridge, the cartridge carrier may
have moved back to the original position. If so, press Access Cartridge again
to move the carrier to the install position.
5. Press Start.
6. Press 1 for new cartridge or 2 for the old one.
Clean the cartridge carrier contacts
Before cleaning these parts, there should be no scheduled job such as delayed
fax, send polling, or faxes received into memory.
CAUTION: Once you have unplugged the power cord from the machine, all
data in memory will be lost.
1. Press Access Cartridge.
2. Open the control panel and cartridge compartment cover and remove the
cartridge. See Replace the print cartridge on page 48.
3. Remove the print cartridge.
4. Unplug the power cord from the electrical outlet of the rear of the machine.
WARNING! Shock Hazard. Be sure to unplug the power cord before
proceeding.
5. Clean the cartridge carrier contacts with clean and cotton swab.
6. Plug in the power cord and reinstall the cartridge.