Chapter 3 Image Quality Troubleshooting
3.1 Image Troubleshooting
3-4
NOTE
The checkpoints against printing errors are as follows.
Order
Phenomenon
Checkpoint
1
Vertical thin part, white streak Drum/toner cartridge life, uneven toner
2
Vertical stripe, partial thinness Dirty discharge conductor (PLATE DT SAW)
3
Cyclic dot-like or island-like
dirt
Approx.95mm
cycle:
Approx.78mm
cycle:
Approx.38mm
cycle:
Approx.44mm,
48mm,or 52mm
cycle:
Approx.55mm
cycle:
Approx.72mm
cycle:
OPC Drum damage
FUSER ASSY CL CH Heat Roller
damage or dirty Pressure Roller
Dirty ROLL ASSY REGI
Dirty or damaged Developing Roller,
dirty Charge Roller, or Drum/toner
cartridge error
Dirty or damaged ROLL BTR
Dirty Pressure Roller
4
Cyclic horizontal streak,
horizontal line
Approx.44mm,
48mm,or 52mm
cycle:
Approx.55mm
cycle:
Approx.95mm
cycle:
Approx.78mm
cycle:
Dirty or damaged Developing Roller,
dirty Charge Roller, or Drum/toner
cartridge error
Dirty ROLL BTR or defective Trans
Roller
OPC drum damage or Drum/toner
cartridge error (cleaning error)
FUSER ASSY CL CH Heat Roller
damage or dirty Pressure Roller
5
Black vertical line
Dirty FUSER ASSY CL CH or Drum/toner cartridge error
6
Brushed dirt
Drum/toner cartridge error (cleaning error)
7
All black
High-voltage terminal or contact error
Scanner Assy error
8
Not printed
ROS ASSY error
9
Haze-like thinness
Sands look scattered
Condensation in Drum/toner cartridge
10
Dirty paper back
Dirty device inside
Dirty FUSER ASSY CL CH Roller
Dirty ROLL BTR (approx. 55mm cycle)
Summary of Contents for DocuPrint 2050
Page 1: ...DocuPrint 2050 Service Manual 1st Edition KON001CA ...
Page 3: ...Company Name Department Name Telephone No Full Name Employee No ...
Page 5: ...Preface ...
Page 11: ...Chapter 1 Service Call Procedure ...
Page 19: ...Chapter 2 Troubleshooting ...
Page 85: ...Chapter 3 Image Quality Troubleshooting ...
Page 114: ...Chapter 4 Disassembly Assembly and Adjustment ...
Page 193: ...Chapter 5 Parts List ...
Page 207: ...Chapter 6 General ...
Page 243: ...Chapter 7 Wiring Data ...
Page 247: ...Chapter 7 Wiring Data 7 1 Connector P plug J jack 7 4 ...
Page 252: ...Chapter 7 Wiring Data 7 3 Wiring Diagram between Parts 7 9 Continued from the preceding page ...
Page 264: ...Chapter 10 Machine Overview ...