Showing results for 
Search instead for 
Do you mean 
Reply
New Member
Posts: 4
Registered: ‎10-19-2017

Phaser 7800GX Smudging and Missing Toner

I have the Phaser 7800GX and has 44,000 sheets through it.  I am getting toner smudging and missing toner on the page.  What do I need to replace to resolve this issue?  Fuser is 87%, Belt Cleaner is 70%, Transfer Roller is 76%, Transfer Roller is 90%, Suction Roller is 62%.  All the imagers for the color toner are at 73% and black is at 65%.  Running Xerox glossy cardstock 110lbs.  

 IMG_5867.JPG

Occasional Advisor
Posts: 298
Registered: ‎02-13-2013

Re: Phaser 7800GX Smudging and Missing Toner

Have a tech init the nvm's.

New Member
Posts: 4
Registered: ‎10-19-2017

Re: Phaser 7800GX Smudging and Missing Toner

We reset the NVRAM and had no effect.

Occasional Advisor
Posts: 298
Registered: ‎02-13-2013

Re: Phaser 7800GX Smudging and Missing Toner

It looks like the toner is not fusing. What weight is the paper?

New Member
Posts: 4
Registered: ‎10-19-2017

Re: Phaser 7800GX Smudging and Missing Toner

110 glossy cardstock. Using the same settings and paper for the last year with the same file.
Occasional Advisor
Posts: 298
Registered: ‎02-13-2013

Re: Phaser 7800GX Smudging and Missing Toner

[ Edited ]

Make sure the weight setting (gsm) is correct. Replace the fuser. Make sure the total toner coverage is not greater than 260 percent. Try a setting in your driver one setting heavier. Load the latest firmware. Delete driver and install the latest. Have a tech do a NVM reset.

New Member
Posts: 4
Registered: ‎10-19-2017

Re: Phaser 7800GX Smudging and Missing Toner

Double checked all of my settings...   Everything is just like I have had it for the last year.  Replaced the fuser and did not make any difference...   Any other thoughts?

Occasional Advisor
Posts: 298
Registered: ‎02-13-2013

Re: Phaser 7800GX Smudging and Missing Toner

Check wall voltage, Replace the main ess board.