Scratches Parallel To The Long Axis Of Printing, Particularly With Film - Xerox Phaser 8400 Service Manual

Scratches Parallel to the Long Axis of Printing,
Particularly with Film
Step Question and Actions
1 Inspect the exit area for anything that may be touching the Drum.
2 Clean the Paper Release Guide.
3 Inspect the Drum Maintenance Kit. If print defect is a thin line that is glossier than
surrounding area, it may be due to a defect on the Wiper Blade.
4 Print on a transparency in Tray 1 (MPT) to see if the scratch appears on the print. If it
does not, the scratch occurred in the paper pick and early transport from Tray 2, 3 or 4.
Try changing the Paper Pick Guide, front door, or Maintenance Kit. If the scratch
appears on the non-printed side
NOTE To determine where the scratch is originating, project the transparency and put
a small drop of water on the scratch. If the scratch disappears, the scratch is on
that side. If the scratch does not disappear, following these steps on the other
side. This can help to determine where the problem is originating.
5 A scratch or smear can be caused by debris build-up on the paper preheater heating
surfaces. Run the front panel cleaning procedure
sheet of thick 65- to 80-lb. paper through the paper preheater to "buff" the paper
preheater heating surfaces. With the leading and trailing ends of the sheet of paper
extending from the entry and exit of the paper preheater, gently pull the sheet of paper
back and forth several times and then remove the sheet of paper. Be careful of the
paper-sensor flags.
6 Inspect all paper guides (for example the exit guide) for nicks and cuts. Replace if
necessary.
5-20
Usually caused by foreign debris in the
paper path. The scratch extends into non-
printed areas.
0388-68
Remove Print
Phaser 8400 Printer Service Manual
Smears. Force a