magicolor 330 - Base Engine Service Manual 5-13
Primary Fault Isolation Procedures
5.5 - Horizontal Band Deletions, continued
Step Actions and Questions Yes No
5
FUSER INSPECTION
1. Generate a test print and slide the Fuser Assembly out of the
printer just as the sheet of paper exits the Fuser.
2. Inspect the image on the sheet of paper just after the paper exits
the Fuser.
Is there a normal test print image on the sheet of paper before
entering the Fuser but the image has visible horizontal band
deletions after it exits the Fuser?
Go to step 6
6
1. Replace the Oil Roll Assembly (RRP 9.82).
2. Generate a test print.
3. Inspect the image on the sheet.
Is the image now normal, without horizontal band deletions as it
exits the Fuser?
Problem
Solved Replace the
Pressure Roll
(RRP 9.83) and
the Heat Roll
(RRP 9.84)
71. Replace the Xerographic Cartridg e (RRP 9.48).
2. Generate a test print.
Is the image now normal, without horizontal band deletions?
Problem solved Go to step 8
8
DEVELOPER ASSEMBLY INSPECTION
1. Remove the Top Cover (RRP 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?
Go to step 9 Replace the
faulty Devel-
oper Assembly
91. Replace the HVPS (RRP 9.120).
2. Generate a test print.
Is the image now normal, without horizontal band deletions?
Problem solved Go to step 10
101. Replace each of the four De veloper Assemblies, one at a time.
2. Generate a test print each time you replace a Developer Assem-
bly.
Is the image now normal, without horizontal band deletions?
Problem solved Go Suspect
Components