LaserJet Enterprise M806

Dennis
Posts: 53
Joined: Sat Oct 21, 2017 9:47 pm

LaserJet Enterprise M806

Postby Dennis » Fri Oct 08, 2021 1:51 pm

My printer gives a pale copy.
What can I do?
Sanjay
Posts: 43
Joined: Mon Feb 01, 2021 11:47 am

Re: LaserJet Enterprise M806

Postby Sanjay » Fri Oct 08, 2021 1:54 pm

Print is light or faded on entire page.
Cause:
Poor secondary transfer roller contact with the roller shaft.
Solution:
Clean the contacts.
If the problem remains after cleaning, check the contacts for damage.
Replace any deformed or damaged parts.
Last edited by Sanjay on Fri Oct 08, 2021 2:02 pm, edited 2 times in total.
Sanjay
Posts: 43
Joined: Mon Feb 01, 2021 11:47 am

Re: LaserJet Enterprise M806

Postby Sanjay » Fri Oct 08, 2021 2:02 pm

Solve image quality problems
Print is too dark.
Cause:
  • Poor drum grounding contact with the toner cartridge.
  • Poor primary charging bias contacts with the toner cartridge.
Solution:
Clean the contacts. If the problem remains after cleaning, check the contacts for damage. Replace any deformed or damaged parts.

The page is all black.
Cause:
  • Poor primary charging bias contacts with the toner cartridge.
  • The primary charging bias roller is damaged.
Solution:
Clean the contacts. If the problem remains after cleaning, check the contacts for damage. Replace any deformed or damaged parts.

Page is blank.
Cause & Solution:
  • The laser shutter open-close projection on the toner cartridge is damaged.
    Replace the toner cartridge.
  • The laser shutter arm or laser shutter is not working or damaged.
    Replace any deformed or damaged parts.
  • Poor developing bias contacts with the toner cartridge.
    Clean the contacts.
    If the problem remains after cleaning, check the contacts for damage.
    Replace any deformed or damaged parts.
Sanjay
Posts: 43
Joined: Mon Feb 01, 2021 11:47 am

Re: LaserJet Enterprise M806

Postby Sanjay » Fri Oct 08, 2021 8:43 pm

Solve image quality problems
White spots appear in the image.
Cause & Solution:
  • The static charge eliminator is dirty.
    Clean the static eliminator.
  • The secondary transfer roller is deformed or has deteriorated.
    Replace the secondary transfer roller assembly.
  • Poor secondary transfer roller contact with the roller shaft.
    Clean the contact. If the problem remains after cleaning replace the secondary transfer roller assembly.
The back of the page is dirty.
Cause & Solution:
  • The secondary transfer roller is dirty.
    Replace the secondary transfer roller.
  • The fuser inlet guide or separation guide is dirty.
    Clean the dirty parts. If the dirt does not come off, replace the guide.
  • The pressure roller is dirty.
    Run the cleaning page several times. If the issue persists, replace the fuser.
Vertical streaks or bands appear on the page.
Cause & Solution:
  • Scratches are present on the circumference of the developing cylinder or photosensitive drum.
    Replace the toner cartridge.
  • Scratches are present on the circumference of the fuser roller.
    Replace the fuser.
Vertical white lines appear on the page.
Cause & Solution:
  • A unknown substance has adhered to the laser beam window
    Remove any unknown substances.
  • Scratches are present on the circumference of the developing roller or photosensitive drum.
    Replace the toner cartridge.
  • M830 product only: White scratch down the page could mean the scanner glass needs to be cleaned.
    Clean the glass.

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