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5-18 magicolor 330 - Base Engine Service Manual
Primary Fault Isolation Procedures
5.8 - Spot Deletions
PROBLEM
There are areas of the image that are extremely light or are missing entirely. These missing
areas form spots that are localized to small areas of the page.
THE PRINTER DIS-
PLAYS NO ERROR MESSAGE.
• MCU PWB (RRP 9.123)
• Controller PWB (RRP 9.129)
• LVPS (RRP 9.119)
• ROS Assembly (RRP 9.47)
Step Actions and Questions Yes No
1
PAPER INSPECTION
Inspect the paper that is loaded in the paper tray.
Is the paper wrinkled, dimpled, or show any signs of having a
high moisture content?
Load fresh, dry
paper.
Go to step 2
2
XEROGRAPHIC INSPECTION
1. Generate a test print and slide the Fuser Assembly out of the
printer just before the sheet of paper enters the Fuser.
2. Remove the Xerographic Cartridge (RRP 9.48).
3. Inspect the image on the Drum.
Is there a normal test print image, without any spot deletions,
visible on the drum?
Go to step 3 Go to step 7
3
IBT INSPECTION
Inspect the image on the surface of the IBT?
Is there a normal test print image, without any spot deletions,
visible on the surface of the IBT?
Go to step 4 Replace the
Transfer
Assembly
(RRP 9.71)
4
2ND TRANSFER INSPECTION
1. Generate a test print and slide the Fuser Assembly out of the
printer just before the sheet of paper enters the Fuser.
2. Inspect the image on the sheet of paper just before the paper
enter the Fuser.
Is there a normal test print image, without any spot deletions,
visible on the sheet of paper?
Go to step 5 Replace the
2ND BTR
Assembly
(RRP 9.75)
RS508X