Chapter 8

7.Clean only the copper-colored contacts. Allow the print cartridges to dry for approximately ten minutes.

Solve a problem

1Copper-colored contacts

2Ink nozzles (do not clean)

8.Hold the print cartridge with the HP logo on top, and insert the print cartridge back into the slot. Make sure you push the print cartridge in firmly until it snaps into place.

9.Repeat if necessary for the other print cartridge.

10.Gently close the print cartridge door and plug the power cord into the back of the product.

Cause: The print cartridge contacts needed to be cleaned.

If this did not solve the issue, try the next solution.

Solution 3: Replace the print cartridges

Solution: Replace the indicated print cartridge. You can also remove the indicated print cartridge and print using ink-backup mode.

NOTE: During ink-backup mode, the product can only print jobs from the computer. You cannot initiate a print job from the control panel (such as printing a photo from a memory card).

84 Solve a problem

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HP 4400 - K4 manual Solution 3 Replace the print cartridges