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HP Officejet Pro 8100 ePrinter Series - The 'Alignment Unsuccessful' Icon Displays on the Printer Control Panel

Issue
The printhead alignment icon flashes on the printer control panel.
    Figure : Printhead alignment icon on the printer control panel
    Image: Printhead alignment icon on the printer control panel.
  1. Printhead alignment icon on the printer control panel
Try the following solutions in the order presented to resolve the issue. When one of the solutions resolves the issue, there is no need to continue troubleshooting.
HP recommends that you use genuine HP ink or toner supplies. HP cannot guarantee the quality or reliability of non-HP or refilled cartridges. If you do not use genuine HP cartridges, the steps in this document might not resolve the issue. To check the authenticity of your cartridges, go to hp.com/go/anticounterfeit.
Visit HP SureSupply to check ink or toner cartridge compatibility or purchase replacement cartridges and other supplies.
  1. If necessary, select your country/region.
    Figure : Country/region selector
    Selecting your country/region
  2. Follow the on-screen instructions to order new supplies or check cartridge compatibility with your printer.
You can also purchase genuine HP cartridges and supplies from other retailers.
Solution two: Check the ink levels and replace depleted cartridges
Follow these steps to check the ink levels, and then replace depleted cartridges.
Step one: Check the ink levels
Choose one of the following methods to check the estimated ink levels in the cartridges.
Step two: Replace the depleted cartridges
Have genuine HP replacement cartridges ready, and then replace the indicated cartridge.
The following video demonstrates how to replace a print cartridge.
Follow these steps to replace one or more cartridges in your HP product.
  caution:
HP recommends that you wait until you have a new cartridge available before removing the old cartridge. After you remove an old cartridge, insert a new cartridge within a few minutes to avoid possible damage to the ink system.
  1. Press the Power button () to turn on the product.
  2. Open the cartridge access door and the product lid. The carriage moves to the middle of the product. Wait until the carriage is idle and silent before proceeding.
    Figure : Open the cartridge access door and the product lid
    Image: Open the cartridge access door and the product lid.
  3. Push the old cartridge inward to release it, and then pull it toward you to remove it from its slot.
    Figure : Remove the cartridge from its slot
    Image: Remove the cartridge.
  4. Remove the new cartridge from its packaging.
  5. Slide the new cartridge into its slot, and then gently push it forward until it clicks into place.
      note:
    Make sure that the colored dot on the cartridge label matches the colored dot on the slot.
    Figure : Insert the cartridge into its color-coded slot
    Image: Insert the cartridge into its color-coded slot.
      caution:
    Do not lift the latch handle on the carriage to insert cartridges. Doing so could cause the printhead or cartridges to be incorrectly seated, which could damage the print mechanism and cause printing problems.
  6. Repeat these steps for other cartridges that you want to replace.
  7. Close the product lid and the cartridge access door.
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.
Solution three: Make sure that the paper type is appropriate and then try the alignment process again
When aligning the printhead, you must load unused, plain white paper in the printer, otherwise an error might occur. Follow these steps to make sure that you are using the appropriate type of paper, and then try aligning the printhead again.
Step one: Make sure that the paper type is appropriate
Follow these steps to make sure that you are using the appropriate type of paper.
  1. Remove all the paper from the tray.
  2. Make sure that the paper is clean, unused, plain white, and letter or A4 size paper.
      note:
    Colored paper, or paper that has already been printed on, even on the other side, can cause alignment to fail.
Step two: Reload the paper
When you are sure that you are using the appropriate paper type, follow these steps to reload the paper in the printer.
  1. Pull out the paper tray.
    Figure : Pull out the paper tray
    Image: Pull out the paper tray
  2. Remove all paper from the tray.
  3. Slide the paper width guides to their outermost positions.
  4. Insert 10 to 25 sheets of clean, unused, plain white paper print-side down in the center of the tray.
    Figure : Insert plain paper
    Image: Insert plain paper
  5. Make sure that the stack of paper is no higher than the paper stack guide located on the side of the tray.
    Figure : Do not overfill the tray
    Image: Do not overfill the tray.
  6. Press and hold the paper guide release latches on the inside left and top of the paper tray, and then slide the paper guides in until they rest against the edges of the paper. Do not push the guides in so tightly that they bind against the paper.
    Figure : Adjust the paper guides
    Image: Adjust the paper guides
  7. Reinsert the paper tray.
    Figure : Reinsert the paper tray
    Image: Reinsert the paper tray
  8. Pull out the extension on the output tray.
    Figure : Pull out the extension on the output tray
    Image: Pull out the extension on the output tray
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.
Solution four: Clean and align the printhead
Follow these steps to run the automatic printhead cleaning process, and then try to align the printhead.
Step one: Run the automatic printhead cleaning process
Select a method to clean the printhead, and then follow the instructions.
Step two: Align the printhead
Select a method to align the printhead, and then follow the instructions.
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.
Solution five: Replace the printhead
If you have completed all of the troubleshooting steps and are still experiencing a problem, contact HP to replace the printhead.
If you have a defective cartridge or printhead, it might be under warranty. To check the warranty on your ink or toner supplies, go to hp.com/go/learnaboutsupplies, select your country/region, and then review the limited warranty information for your supplies.
  • If these steps resolved the issue, you do not need to continue troubleshooting.
  • If the issue persists, continue to the next solution.
Contacting HP for service in Asia Pacific.
If you completed all the preceding steps and your product still has an issue, you might need further assistance from HP. Go to Contact HP Support to review available service options.

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