Service manual

T- 7 8
(13) Rough image
(14) Traces of PC Drum Paper Separator Fingers
(15) Void areas along leading edge
<Paper Separator Corona Output Adjustment Procedure>
1. Press the Utility key.
2. Touch Meter Count.
3. Press the following keys in this order: Stop → 0 → 0 → Stop → 0 → 1.
4. Select Tech. Rep. Mode.
5. Press the following keys in this order: Stop → Start.
6. Select “Printer” of the Adjust mode.
7. Select “Separator Charge.”
8. Select “1-side” or “2-side.”
9. Press the Clear key and enter a value from the 10-Key Pad.
10. Use the Access key to change the + or – sign.
11. After the setting has been made, go back to the Basic screen.
Section Step Check Result Action
Engine
1 Foreign matter and caked
toner inside Developing Unit
and DB.
YES Remove foreign matter and
caked toner. Change devel-
oper.
2 Image Transfer Corona wire is
dirty or deteriorated.
YES Clean or change.
3 Wiring between HV and Image
Transfer Corona is connected.
YES Change HV.
NO Connect.
IR
1 Wiring between CCD Assy
and Image Processing Board
is connected.
YES Change CCD Assy.
Change Image Processing
Board.
NO Connect.
Section Step Check Result Action
Engine
1 Traces come from PC Drum
Paper Separator Fingers.
YES Adjust Paper Separator
Corona output: Change the
valuetoone3to5steps
greater than the current set-
ting. (See the adjustment pro-
cedure given below.)
Section Step Check Result Action
Engine
1 Image density along the lead-
ing edge is low.
YES Adjust Paper Separator
Corona output: Change the
valuetoone3to5steps
greater than the current set-
ting. (See the adjustment pro-
cedure given below.)