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HP LaserJet Pro 100 Printers - Replacing the Imaging Drum

This document is for HP LaserJet Pro 100 Color MFP M175a and M175nw printers.
You might need to replace the imaging drum for the following reasons:
  • An 'Imaging Drum Low' or an 'Imaging Drum Very Low' message displays on the printer control panel.
    The actual imaging drum life remaining might vary.
  • Repeated defects appear on printouts at the following intervals:
    • 26 mm (1 in)
    • 94 mm (3.7 in)
 note:
If your printer is still covered by the printer's one-year limited warranty, HP replaces your imaging drum free of charge. The replacement imaging drum is also covered by a one-year limited warranty beginning on the day you install it.
  1. Purchase an imaging drum from HP SureSupply.
  2. Lift the scanner assembly.
    Figure : Lifting the scanner assembly
    Image: Lifting the scanner assembly.
  3. Open the toner cartridge access door.
    Figure : Opening the toner cartridge access door
    Image: Opening the toner cartridge access door.
  4. Remove the dust cover.
    Figure : Removing the dust cover
    Image: Removing the dust cover.
  5. Open the front cover.
    Figure : Opening the front cover
    Image: Opening the front cover.
  6. Lift the two levers that hold the imaging drum.
    Figure : Lifting the imaging drum levers
    Image: Lifting the imaging drum levers.
  7. To remove the old imaging drum, pull it out of its slot.
    Figure : Removing the old imaging drum
    Image: Removing the old imaging drum, and then place the used imaging drum in the bag and box for recycling.
  8. Unpack the new imaging drum.
    Place the used imaging drum in the bag and box for recycling.
    Figure : Unpacking the new imaging drum and recycling the old imaging drum
    Image: Unpacking the new imaging drum and recycling the old imaging drum.
  9. Remove the protective shield from the new imaging drum.
    Figure : Removing the protective shield from the imaging drum
    Image: Removing the protective shield from the imaging drum.
     caution:
    To prevent damage to the imaging drum, do not expose it to light. If you need to keep the imaging drum outside the printer for a short period, cover it with paper.
    Do not touch the green roller on the imaging drum. Fingerprints on the imaging drum can cause print quality issues.
    Figure : Do not touch the imaging drum roller
    Image: Do not touch the imaging drum roller.
  10. Insert the new imaging drum into the printer.
    Figure : Inserting the imaging drum
    Image: Inserting the imaging drum.
  11. Lower the imaging drum levers.
    Figure : Lowering the imaging drum levers
    Image: Lowering the imaging drum levers.
  12. Close the front cover.
    Figure : Closing the front cover
    Image: Closing the front cover.
  13. Reinstall the dust cover.
    Figure : Reinstalling the dust cover
    Image: Reinstalling the dust cover.
  14. Close the toner cartridge access door.
    After you close the toner cartridge access door, the control panel displays the 'Initializing' message.
    Wait for the printer to stop calibrating before you proceed.
    Figure : Closing the toner cartridge access door
    Image: Closing the toner cartridge access door.
  15. Lower the scanner assembly.
    Figure : Lowering the scanner assembly
    Image: Lowering the scanner assembly

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