5-12 magicolor 330 - Base Engine Service Manual
Primary Fault Isolation Procedures
5.5 - Horizontal Band DeletionsPROBLEM
There are areas of the image th at are extremely light or are missing entirely. T hese missing
areas form wide bands that run ho rizon tally a cross t he p ag e paral lel with th e dire ction of
paper travel. THE PRINTER DISPLAYS NO ERROR MESSAGE.
• MCU PWB (RRP 9.123)
• LVPS (RRP 9.119)
• ROS Assembly (RRP 9.47)
• Developer Clutch Assem bly (RRP 9.117)
• Components shorting to the printer frame
Step Actions and Questions Yes No
1
PAPER INS PEC TIO N
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, wi thout any horizon tal band
deletions, visible on the drum?
Go to step 3 Go to step 7
3
IBT INSPECTION
Inspect the image on the su rface of the IBT?
Is there a normal test print image, without any horizontal band
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, wi thout any horizon tal band
deletions, visible on the sheet of paper?
Go to step 5 Replace the
2ND BTR
Assembly
(RRP 9.75)
RS504X