16. Image quality problem
Field Service Ver. 1.0 May 2006
240
magicolor 7450
T
roubleshooting
16.3.25
4-Color: uneven image
A. Typical Faulty Images
B. Troubleshooting Procedure
4138fs4507c0
Step
Section
Check Item
Result
Action
1
Toner Cartridge
The Toner Cartridge of every
color is surely installed.
NO
Re-install it.
2
PH Unit
The PH Unit is surely installed.
NO
Re-install it.
3
Uneven pitch occurs in 3.0 mm
pitch.
YES
Replace the PH Unit Holder.
4
Toner Cartridge
There is any stain or breakage on
the Drive section of the Toner
Cartridge.
YES
Clean/replace the Toner Car-
tridge.
5
Imaging Unit
There is any stain, damage or
abrasion on the PC drum.
YES
Replace the Imaging Unit.
6
Transfer Roller
There is any stain, damage,
deformation or abrasion on the
Transfer roller.
YES
Replace the Transfer Roller.
7
Fusing Unit
There is any stain, damage,
deformation or abrasion on the
Roller and Drive section of the
Fusing Unit.
YES
Replace the Fusing unit.
8
The problem has been eliminated
through the check of step 7.
NO
Replace the Transfer Belt.
Содержание magicolor 7450
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Страница 26: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Main Unit magicolor 7450 magicolor 7450 ...
Страница 43: ...2 Product specifications Field Service Ver 1 0 May 2006 6 magicolor 7450 General Blank Page ...
Страница 288: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Lower Feeder Unit ...
Страница 293: ...1 Product specifications Field Service Ver 1 0 May 2006 2 Lower Feeder Unit General Blank Page ...
Страница 317: ...3 Other Field Service Ver 1 0 May 2006 26 Lower Feeder Unit Maintenance Blank Page ...
Страница 321: ...5 Sensor check Field Service Ver 1 0 May 2006 30 Lower Feeder Unit Adjustment Setting Blank Page ...
Страница 328: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Duplex Option ...
Страница 331: ...Duplex Option General Maintenance Adjustment Setting Troubleshooting Field Service Ver 1 0 May 2006 ii Blank Page ...
Страница 333: ...1 Product specifications Field Service Ver 1 0 May 2006 2 Duplex Option General Blank Page ...
Страница 345: ...6 Jam Display Field Service Ver 1 0 May 2006 14 Duplex Option Troubleshooting Blank Page ...