HP OFFICEJET 4500 - Manual (Page 93)

To clean the ink cartridge contacts
1. Turn on the device and open the ink cartridge door.
The print carriage moves to the far right side of the device.
2. Wait until the print carriage is idle and silent, and then unplug the power cord from
the back of the device.
NOTE: Depending how long the HP All-in-One is unplugged, the date and time
might be erased. You might need to reset the date and time later, when you plug
the power cord back in.
3. Lightly press down on the ink cartridge to release it, and then pull it toward you, out
of the slot.
4. Inspect the ink cartridge contacts for ink and debris buildup.
5. Dip a clean foam rubber swab or lint-free cloth into distilled water, and squeeze any
excess water from it.
6. Hold the ink cartridge by its sides.
7. Clean only the copper-colored contacts. Allow the ink cartridges to dry for
approximately ten minutes.
1 Copper-colored contacts
2 Ink nozzles (do not clean)
8. Slide the ink cartridge back into the slot. Push the ink cartridge forward until it clicks
into place.
9. Repeat if necessary for the other ink cartridge.
10. Gently close the ink cartridge door and plug the power cord into the back of the device.
Clean the area around the ink nozzles
If the device is used in a dusty environment, a small amount of debris might accumulate
inside the device. This debris can include dust, hair, carpet, or clothing fibers. When
debris gets on the ink cartridges, it can cause ink streaks and smudges on printed pages.
Ink streaking can be corrected by cleaning around the ink nozzles as described here.
Clean the area around the ink nozzles 89