Follow these steps to resolve the issue.
Step two: Clean the printhead
Use the following steps to clean the printhead. Clean these areas on the printhead: the plastic ramps on both sides of the ink nozzles, the edge between the ink nozzles and the electrical contacts, and the electrical contacts. Follow these steps to clean the printhead.
Figure 4: Three areas to clean

1 - Plastic ramp on the side of the ink nozzles
2 - Edge between the ink nozzles and the electrical contacts
3 - Electrical contacts
CAUTION:Do not touch the ink nozzles or the electrical contacts with your finger.
Figure 5: Do not touch the electrical contacts

Gather the following cleaning materials:
Several clean, lint-free cloths or papers. Coffee filters and glass-cleaning cloths work well.
Distilled or bottled water. Do not use tap water. Tap water can contain contaminants that might damage the printhead.
Lightly dampen a clean, lint-free cloth.
Use the damp cloth to wipe the electrical contacts. Wipe from the bottom to the top. Do not go past the edge between the electrical contacts and the ink nozzles. Repeat this motion until no ink appears on the cloth.
Figure 6: Clean the electrical contacts

Use a fresh damp cloth to wipe any accumulated ink and debris from the edge between the ink nozzles and the electrical contacts.
Figure 7: Clean the edge between the ink nozzles and the electrical contacts

Use a fresh damp cloth to wipe the plastic ramps on both sides of the ink nozzles. Wipe away from the nozzles only.
Figure 8: Clean the ramps

Dry the previously cleaned areas with a clean, dry, lint-free cloth.
Lightly dampen a fresh, clean, lint-free cloth with bottled or distilled water.
Clean the electrical contacts inside the product by wiping them from top to bottom. Repeat this motion until no ink appears on the cloth.
Dry the area with a clean, dry, lint-free cloth.