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HP Officejet 7000 Wide Format Printer - E809a support

'Printhead Problem' or 'Printhead Appears to be Missing or Damaged' Message Displays on the Computer

  • PrintPrint

Issue

The message 'Printhead problem ' or 'Printhead appears to be missing or damaged ' displays on the computer. The product does not print. The cartridge lights might also blink in sequence from left to right.
Figure 1: Cartridge lights blink
Animation of blinking cartridge lights

Solution

Follow these steps to resolve the issue.

Step one: Remove the printhead

  1. Press the Power button ( ) to turn on the product, if it is not already on.
  2. Open the top cover. The carriage moves to the center of the product. Wait until the carriage stops moving before proceeding.
    Figure 2: Open top cover
    illustration of opening the top cover
  3. Remove the cartridges. Press the tab on each cartridge, and then remove each cartridge from its slot.
    Figure 3: Remove the cartridge
    illustration of removing a cartridge
    NOTE: Do not leave the cartridges outside the product longer than 30 minutes. Doing so can result in damage to both the product and the cartridges.
  4. Lift the latch handle on the carriage until it stops.
    Figure 4: Lift the latch handle
    illustration of lifting the latch handle
  5. Lift the printhead to remove it from the carriage.
    Figure 5: Remove the printhead
    illustration of removing the printhead

Step two: Clean the printhead

Use the following steps to clean the printhead. There are three areas on the printhead that need to be cleaned: 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 6: Three areas to clean
The three areas on the printhead to clean
1 - Plastic ramp on the side of the ink nozzles
2 - The edge between the ink nozzles and the electrical contacts
3 - The electrical contacts
CAUTION:Do not touch the ink nozzles. Do not touch the electrical contacts with your finger.
Figure 7: Do not touch the electrical contacts
Do not touch the electrical contacts illustration
  1. 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 can damage the printhead.
  2. Lightly dampen a clean, lint-free cloth.
  3. Use the damp cloth to wipe the electrical contacts 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 8: Clean the electrical contacts
    Clean the electrical contacts
  4. Use a fresh, lightly dampened, lint-free cloth to wipe any accumulated ink and debris from the edge between the ink nozzles and the electrical contacts.
    Figure 9: Clean the edge between the ink nozzles and the electrical contacts
    Clean the edge between the ink nozzles and the electrical contacts
  5. Use a fresh, lightly dampened, lint-free cloth to wipe the plastic ramps on both sides of the ink nozzles. Wipe away from the nozzles only.
    Figure 10: Clean the ramps
    Clean the ramps
  6. Dry the previously cleaned areas with a clean, dry, lint-free cloth.
  7. Lightly dampen a fresh, clean, lint-free cloth with bottled or distilled water.
  8. Clean the electrical contacts inside the product by wiping them from top to bottom. Repeat this motion until no ink appears on the cloth.
    Figure 11: Clean the electrical contacts inside the product
    Illustration of cleaning the electrical contacts inside the product
  9. Dry the area with a clean, dry, lint-free cloth.

Step three: Reinstall the printhead

  1. Raise the latch handle on the carriage, and then reinstall the printhead by lowering it into the carriage.
    Figure 12: Insert the printhead
    Illustration of inserting the printhead into the carriage
  2. Carefully lower the latch handle.
    Figure 13: Lower the latch handle
    Illustration of lowering the latch handle
    NOTE:Leaving the latch handle raised can result in incorrectly seated cartridges. The latch must remain down to install the cartridges correctly.
  3. Slide each cartridge into the correct slot until it clicks into place. Make sure that the colored shape icon on the cartridge label matches the colored shape icon on the carriage slot.
    Figure 14: Reinstall each cartridge
    Illustration of reinstalling the cartridge
  4. Close the cartridge access door.
  • If these steps resolved the issue , there is no need to continue troubleshooting.
  • If the issue persists , see the next step.

Step four: Reset the printer

  1. Press the Power button ( ) to turn the product off.
  2. Disconnect the power cord from the back of the product.
  3. Wait 30 seconds.
  4. Reconnect the power cord to the back of the product.
  5. Press the Power button ( ) to turn the product on.
  • If these steps resolved the issue , there is no need to continue troubleshooting.
  • If the issue persists , see the next step.

Step five: Service the product

If you have completed all the preceding steps and are still experiencing a problem, you may need further assistance from HP to remedy your concern.
Please contact HP using one of the options found in Contact HP .
HP Officejet 7000 Wide Format Printer - E809a

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