Abnormal Image Printing And Defective Roller - Muratec MFX-C4000 Field Engineering Manual

4.1.3 Abnormal Image Printing and Defective Roller

If a mark or other printing defect occurs at regular intervals down the page, it may be caused by a damaged
or contaminated roller. Make sure the repetition interval by consulting the table below.
If the roller is dirty, try to clean it. If the problem is still occurred after cleaning the roller, replace the part
including the defective roller.
NO Roller
1 Pressure Roller
2 T2 Roller
3 Registration Roller
4 Pick-up Roller
5
Drive Roller
6 T1 Roller
7 Exit Roller
8 OPC Drum
Charger Roller
Magnetic Roller (K)
Magnetic Roller
(YMC)
9 Fuser Belt
10 ITB
Service Manual
Alignment & Troubleshooting
Period
(mm)
91.1 Offset, Spot, Line Burst
88.0 White and Black Spot, Periodic Banding,
Rear Side Paper Dirty
59.7
Roll Mark
72.3 Roll Mark
77.8 Periodic Banding, Color Registration
44.0 White and Black Spot, Periodic Banding
47.1 Roll Mark, Vertical Scratch
94.3 White and Black Spot, Periodic Banding,
Ghost, Color Registration
44.0 White and Black Spot, Periodic Banding
35.3
Periodic Banding
35.3
Periodic Banding
127.7 Waving, Offset, Spot, Line Burst
785.4
White and Black Spot, Periodic Banding
4-16
Phenomenon Replace part
Fuser Unit
Transfer Roller
-
-
ITB Unit
ITB Unit
-
Imaging Unit
Imaging Unit
Imaging Unit
Imaging Unit
Fuser Unit
ITB Unit