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Tech Service Bulletin No. A229 – 007
Page 5 of 5
3. Development Bias Adjustment
(This is to adjust the development bias to an appropriate level for each customer.)
Change SP2210 to 10.
Change SP2201-4 to 270.
Change SP2201-1 to 550.
Increase SP2201-4 by 30.
Perform SP2961.
Make 10 sheets of A4/LT
sideways copies by test
Yes
Increase SP2201-1 by 20.
Make 10 sheets of A4/LT
sideways copies by test
Start
Was problem
improved?
No
Was problem
No
improved?
Yes
End
There are other causes like Drum,
Transfer belt, Developer or Toner.
To change interval of Vsg/Vsp check
To start adjustment from 270.
To start adjustment from 550.
Developer initialization.
Did you repeat
4 times?
Yes
Change SP2201-4 back to
270.
Change SP2201-1 back to
550.
Change SP2209 back to
End
No
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Troubleshooting
