5.4 - Vertical Band Deletions - Minolta magicolor 330 Service Manual

Primary Fault Isolation Procedures

5.4 - Vertical Band Deletions

RS503X
Step
PAPER INSPECTION
Inspect the paper that is loaded in the paper tray.
1
Is the paper wrinkled, dimpled, or show any signs of having a
high moisture content?
LASER PATH INSPECTION
1. Remove the Xerographic Cartridge (RRP 9.48).
2
2. Inspect the empty Xerographic Cartridge cavity for a scrap of
paper or a toner blotch that could be blocking the ROS window.
Is there debris blocking the ROS window?
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.
3
2. Remove the Xerographic Cartridge (RRP 9.48).
3. Inspect the image on the Drum.
Is there a normal test print image, without any vertical band
deletions, visible on the Drum?
DEVELOPER ASSEMBLY INSPECTION
1. Remove the Top Cover (RRP 9.3).
2. Turn the Rotary Frame and inspect the Magnet Roll of each of
4
the four Developer Assemblies.
Do the Magnet Rolls of each Developer Assembly appear smooth,
evenly formed, without any low spots, and without obvious con-
tamination?
5-10
PROBLEM
There are areas of the image that are extremely light or are missing entirely. These missing
areas form wide bands that run vertically along the page in the direction of paper travel.
THE PRINTER DISPLAYS NO ERROR MESSAGE.
• MCU PWB (RRP 9.123)
• LVPS (RRP 9.119)
• ROS Assembly (RRP 9.47)
Actions and Questions Yes
Load fresh, dry
paper.
Remove the
debris from the
ROS window
Go to step 5
Replace the
Xerographic
Cartridge (RRP
9.48)
magicolor 330 - Base Engine Service Manual
No
Go to step 2
Go to step 3
Go to step 4
Replace the
faulty Devel-
oper Assembly