Field Service Ver. 1.0 May 2006
16. Image quality problem
223
magicolor 7450
T
roubleshooting
16.3.8
Monocolor: void areas, white spots
A. Typical Faulty Images
B. Troubleshooting Procedure
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Void areas
White spots
Step
Section
Check Item
Result
Action
1
Image Check
There are void areas at the front
side or high density section.
YES
2
There is void area at the rear side
section.
YES
Perform [TRANSFER POWER]/
[1'ST TRANSFER] under Service
Menu.
3
Imaging Unit
The surface of the PC Drum is
scratched.
YES
Change Imaging Unit.
4
Dirty on the outside.
YES
Clean.
5
Toner Cartridge
Foreign matter or caked toner in
the Toner Cartridge.
YES
Remove foreign matter.
Summary of Contents for magicolor 7450
Page 1: ...SERVICE MANUAL 2006 05 2006 05 Ver 1 0 Ver 1 0 FIELD SERVICE magicolor 7450 magicolor 7450 ...
Page 3: ...ii Blank Page ...
Page 26: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Main Unit magicolor 7450 magicolor 7450 ...
Page 43: ...2 Product specifications Field Service Ver 1 0 May 2006 6 magicolor 7450 General Blank Page ...
Page 288: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Lower Feeder Unit ...
Page 317: ...3 Other Field Service Ver 1 0 May 2006 26 Lower Feeder Unit Maintenance Blank Page ...
Page 328: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Duplex Option ...
Page 333: ...1 Product specifications Field Service Ver 1 0 May 2006 2 Duplex Option General Blank Page ...
Page 345: ...6 Jam Display Field Service Ver 1 0 May 2006 14 Duplex Option Troubleshooting Blank Page ...