Missing Band, Voids Or Streaks In A Single Color Or All Colors Parallel To The Leading Edge - Xerox Phaser 6250 Service Manual

Missing Band, Voids Or Streaks In a Single Color or All
Colors Parallel to the Leading Edge
There are areas of the image that are extremely light
or missing entirely. These missing areas form bands
parallel to the leading edge.
Troubleshooting Procedure
Step Check
1
Is the 600 x 600 test pattern, printed
as specified in "Print Engine Test
Print" on page 5-9, correct?
2
Is the paper wrinkled, dimpled or
show any signs of having a high
moisture content? Is the problem
resolved by loading fresh dry paper?
3 Print a Repeating Defects Page.
Do the defects correspond to a
Routine Maintenance Item?
See "Repeating Defects" on
page 5-3
4
Replace the Imaging Unit PL 9.1.
Does the image quality improve if the
Imaging Unit is replaced?
5
Replace the Transfer Roller,
PL 8.112. Does the image quality
improve if the Transfer Roller is
replaced?
6
Replace the Fuser Assembly,
PL 8.1.1. Does the image quality
improve if the Fuser is replaced?
7 Check the following pins for
continuity; J5030 and J5020 <=>
Transfer Roller.
5-16
Yes
Replace the Image
Processor Board,
page 8-110.
Complete
Replace the
indicated Routine
Maintenance Items.
Complete
Complete
Complete
Go to Step 8.
Phaser 6250 Color Laser Printer Service Manual
S6200-273
No
Go to Step 2.
Go to Step 3.
Go to Step 4.
Go to Step 5.
Go to Step 6.
Go to Step 7.
Replace the defective
wire.