Officejet 7500A printhead problem, then won't print black.

[Jan1988]

Hi.

Had a printhead error message, couldn't clean printhead or do anything. Message instructed to to remove ink, remove printhead, then reinstall them.

Installed a brand new printhead.

Now I don not get the above error message.

Won't print black (installed brand new black cartrige).

"Align printhead" routine fails.

"Clean Printhead" routine produces only 6 squares of color ink, no black.

[atharva_gp]

@Jan1988,

Thank you for reaching out to the HP Support community!

Let's try these steps:

Step 1: Power Reset

• Make sure this printer is plugged into a direct wall, not a surge protector.
• Turn the printer on.
• Wait until the printer is idle and silent before you continue.
• Remove all of your ink cartridges from the printer and close the door.
• With the printer turned on, disconnect the power cord from the rear of the printer.
• Unplug the power cord from the wall outlet.
• Wait at least 60 seconds.
• Plug the power cord back into the wall outlet.
• Reconnect the power cord to the rear of the printer.
• Turn on the printer, if it does not automatically turn on. The printer might go through a warm-up period. The printer lights might flash, and the carriage might move.
• Wait until the warm-up period finishes and your printer is idle and silent before you proceed.
• Reinsert the ink cartridges, and then close the ink cartridge access door.
• Check if you can print/copy
• If the issue persists, proceed to the next step.

Step 2: Clean the ink cartridges manually.

• Open the ink cartridge access door
• Remove the ink cartridges.
• Clean the ink cartridges.
  • Gather the following materials: A clean, lint-free cloth, A clean, dry cotton swab, Distilled or bottled water.
  • Lightly dampen a clean, lint-free cloth with bottled or distilled water
• Gently wipe the copper-colored contact on the ink cartridges.

       

• Wipe the contact with a dry, lint-free cloth
• Examine the vent area located on top of the ink cartridge, next to the HP logo.
• If any of the ink cartridges have clogged vents, use a pin to clean the vents

          

• Re-insert the ink cartridges.
• Try to print/copy
• If the issue persists, proceed to the next step.

Step 3: Update the Printer firmware

• Refer to this link to update the printer firmware.

Let me know if this helps. 

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