Missing Bands, Voids Or Streaks In A Single Color Or All Colors Parallel To The Leading Edge Of The Paper (Scan Direction) - Xerox 7300B - Phaser Color Laser Printer Service Manual

Missing Bands, Voids or Streaks in a Single Color
or All Colors Parallel to the Leading Edge of the
Paper (Scan Direction)
Scan
.
Troubleshooting Procedure
Step Check
1 Print the 100% Solid Fill Test print.
Is the problem with one primary color?
2 Is the paper wrinkled, dimpled or show signs of
having high moisture content?
Load a fresh ream of paper.
Did this correct the problem?
3 Print the Repeating Defects page.
Do the defects correspond to a customer
Replaceable Consumable?
see "Repeating Defects Identification Chart" on
page 3-80
4 Inspect the Fuser housing for warping or
damage.
Troubleshooting
There are areas of the image that are extremely
light or missing entirely. These missing areas
form wide bands that run along the page
parallel to the leading edge of the paper.
This can be caused by Imaging Unit oil lines
that develop on the green roller, if the printer is
not used for extended periods of time, like
overnight. The mark will disappear after the
first print and might not leave a repeating bar.
S7300-035
Yes No
Replace the Go to step [2].
defective
Imaging Unit.
Complete Go to step [3].
See "Repeating Go to step [4].
(Defects) Bands,
Lines, Marks or
Spots" on
page 3-95
Replace the Replace the
Fuser. Engine
Controller
Board.
3-105