Print Quality Issue on Xerox 7800 series ? Clean the Print-head Lenses on the drum units.

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Print quality issues like lines and smears can easily be eliminated by this quick step. The tools are built-into the device – so, all you need to do is to pull and push back a lever. This step is applicable for all the units in the Xerox 7800 series including the Xerox WorkCentre 7830, 7835, 7845, 7855 and the new “i” series Xerox WorkCentre 7830i, 7835i, 7845i and 7855i.

Th printer is constructed with four print-head lenses on the drum. Clean all lenses as described in the following procedure.

CAUTION: Do not perform this procedure when the printer is copying or printing.

  1. Open the Front Cover of the printer.Open Front Cover
  2. Turn the orange lever to the left.Unlock Drum Cartridge
  3. Pull the Drum Cartridge Cover down until it clicks into the open position.Open Drum Cartridge cover
  4. Each of the four printheads has its own cleaning tool. Slowly pull the printhead lens cleaner out until the three dots are visible.Remove toolNOTE: The printhead lens cleaner does not detach from the printer.

    Printhead lens tool

  5. Slowly push the printhead lens cleaner back into the printhead until it stops.
  6. Repeat steps 4 and 5 for each printhead.
  7. Close the Drum Cartridge Cover.Close Drum Cartridge cover
  8. Turn the orange lever to the right to return it to the locked position.Lock Drum Cartridge cover.
  9. Close the Front Cover.



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To learn more about how Magnum can help your organization evaluate your existing copier leases or provide a quote for new copier and printer equipment, please call (800) 893 1183 or send an email to

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