How do I fix a black smug on the leading edge about 12 inches long, all the way across then print. It only happens on the first page on each run. All others pages are good.

SOURCE: Fuzzy Pages

In your troubleshootine menu, I think it is, on the screen, scroll until you find fix imaging problems, or something like that.
There is one for removing streaks and the other for removing smudges.
I would suggest running both and that should resolve your issue.
I doubt your maintence kit is bad, but I would pull it out and check to see if it is extremelty dirty.
Try those two procedures first.
There will be instructions on your User Guide CD on how to run those.

SOURCE: Xerox Phaser 8500 not printing black

Here are the directions to enable and disable Jet Substitution. This may very well help.
Some of the print head jets will not unclog for you. If that does not work then most likely the print head needs to be replaced.

o enable the Jet Substitution mode:

1. Press the [Up] or [Down] arrow button on the Control Panel to select [Troubleshooting] on the Display Screen, and then press the [OK] button.
2. Press the [Up] or [Down] arrow button to select [Print Quality Problems], and then press the [OK] button.
3. Press the [Up] or [Down] arrow button to select [Eliminate Light Stripes], and then press the [OK] button.
4. If necessary, select [Print Light Stripes Test] to make a Light Stripes Test print that shows any weak or missing jet and its jet number.
5. Press the [Up] or [Down] arrow button to select [Jet Substitution Mode], and then press the [OK] button.
6. Press the [Up] or [Down] arrow button to select the color for the weak or missing jet, and then press the [OK] button to select the color.
7. Press the [Up] or [Down] arrow button to select the number of the weak or missing jet (1 to 309), and then press the [OK] button to confirm the selection.
   
   NOTE: If necessary, press the [Up] or [Down] arrow button to select [Save Change and Select Another Jet] to substitute more jets.
   
   
8. Press the [Up] or [Down] arrow button to select [Save Change and Exit] and then press the [OK] button to complete the procedure.
   
   

1. Press the [Up] or [Down] arrow button on the Control Panel to select [Troubleshooting] on the Display Screen, and then press the [OK] button.
2. Press the [Up] or [Down] arrow button to select [Print Quality Problems], and then press the [OK] button.
3. Press the [Up] or [Down] arrow button to select [Eliminate Light Stripes], and then press the [OK] button.
4. Press the [Up] or [Down] arrow button to select [Jet Substitution Mode], and then press the [OK] button.
5. Press the [Up] or [Down] arrow button to select [Turn Jet Substitution Mode Off], and then press the [OK] button.

TMF Solutions Inc.

• 2 Answers
• Posted on Jul 28, 2008

SOURCE: Lines along edge of paper

If the problem re-appears and updating the firmware (from office.xerox.com) does not help you are most likely looking at a replacement processor board.

SOURCE: Xerox Phaser 7760 Prints White Lines Diagonally Across Page

That is normally caused by a bad developer housing.

SOURCE: 7760 DN printing crooked from tray 5

7760 dn solo tiene dos trays...
entiendo q la tray 5 sera el by-pass or left tray


la ultima vez q me paso eso es pq hicieron etiquetas q dejaron residuos de cola en el bafle de los rodillos de partida del by-pass, el papel se frenaba por el lado in y torcia el papel