5-10 magicolor 330 - Base Engine Service Manual
Primary Fault Isolation Procedures
5.4 - Vertical 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 vertically along the pa ge 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)
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
LASER PATH INSPECTION
1. Remove the Xerographic Cartridge (RRP 9.48).
2. Ins pect the empty Xerographi c Cartridge cavity fo r a scrap of
paper or a toner blotch that could be bl oc k i ng the ROS window.
Is there debris blocking the ROS window?
Remove the
debris from the
ROS window
Go to step 3
3
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 vertical band
deletions, visible on the Drum?
Go to step 5 Go to step 4
4
DEVELOPER ASSEMBLY INSPECTION
1. R emove the Top Cover (R RP 9.3).
2. Turn the Rotary Frame and inspect the Magnet Roll of each of
the four Developer Assemblies.
Do the Magnet Rolls of each Developer Assembl y appear smooth,
evenly formed, without any low spots, and without obvious con-
tamination?
Replace the
Xerographic
Cartridge (RRP
9.48)
Replace the
faulty Devel-
oper Assembly
RS503X