Clean all optical sensors and find the one on the left hand side of carriage, just under the ribbon left side, you will see a little silver plate covering a BLACK sensor. Use compressed air to blow out the paper dust. Then on the maintenance menu #11 CALIBRATE the sensors. Power off, power on and test
If this does not clear the error, you will have to replace the sensor HARNESS, the harness has 5 sensors attached to one connector, so if you are not mechanically inclined, i would suggest sending the printer to www.lhsjrinc.services.officelive,com.
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# Hold the cartridge upside down, with the bar-code label facing you and take a damp paper towel. # Use the towel to wipe the printhead of the cartridge on the bottom (where the ink comes out). Wipe the printhead horizontally in one direction only (left to right). # Continue doing this until it looks clean. # Then dab the cartridge on the towel to make sure the ink is flowing. # Next, look inside the printer and locate the carrier that holds ink cartridges. Caution: Make sure the cartridges are not installed at this point.
1. Look for a shiny piece of metal underneath the contacts at the back of the carrier. 2. Take a damp cotton swab (use water only!) and wipe along the bottom of the shiny metal piece. Note: You may need more than one swab.
# Reinstall the cartridges, making sure you snap them correctly into the printer.
1. Remove printhead for offending color.
2. Soak printhead area in 1/4" of warm water for about one minute.
3. With a dry paper towel lightly wipe the printhead length wise.
You should get two continuous color bands either black/yellow
4. Repeat steps 2 & 3 until you get two continuous color bands.
5. Replace printhead in printer print several blocks of each color.
6. Repeat from step 1 until it works.
7. all else replace printhead.
This is usually caused by clogged or burned out printhead nozzels. You can try putting the unit through a couple cleaning cycles. If that does not help, then replace the cartridge with a new HP BRAND cartridge. Do not trust refilled or compatible cartridges in this case. The heating elements in the individual nozzels can burn out causing your type of problem.
Let me know one way or the other
You have replaced the item which is commonly the cause- the printhead. The other possible problems are: a connection break in the printhead ribbon cable, which makes electrical connection from the driver circuitry to the printhead. Look for a tiny crack, especially along the edge of this ribbon cable. Another possibility is an electronic component defect in the circuitry which fires the printhead, or maybe a loose solder connection in the same circuit.
Lastly, when you replaced the printhead, are you reasonably certain the replacement head didn't have a broken top pin or two?