HP F4280 User Guide - Page 200

Cause, The print cartridge contacts needed to be cleaned.

Page 200 highlights

Chapter 12 7. Clean only the copper-colored contacts. Allow the print cartridges to dry for approximately ten minutes. Troubleshooting 1 Copper-colored contacts 2 Ink 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. 198 Troubleshooting

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7.
Clean only the copper-colored contacts. Allow the print cartridges to dry for
approximately ten minutes.
1
Copper-colored contacts
2
Ink 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.
Chapter 12
198
Troubleshooting
Troubleshooting