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[9] ADJUSTMENTS
1
Process
A Doctor gap adjustment
section
B MG roller main pole position adjustment
C High voltage output check and adjustment
2
Engine
A LSU right-angle adjustment
B Print magnification ratio adjustment
C Print off-center adjustment
D Self print lead edge adjustment
E Void area adjustment
F Resist quantity adjustment
G Option paper feed tray paper guide adjustment
H Option manual feed section
paper guide position adjustment
1. Process section
A. Doctor gap adjustment
This adjustment is performed in the following cases:
•When developer is scattered.
•When an uneven image is produced.
1) Remove the developer cartridge and the developing unit from the
machine.
2) Remove the DV cover and the developer from the developing unit.
3) Remove the DVR cover, the DVF handle, the idle correction plate
assembly, and the HG gear 22T, insert a thickness gauge (0.46mm)
as shown in the figure below, and check that the clearance is within
the specified range.
If the clearance is not within the specified range, adjust the doctor gap in
the following procedures.
4) Loosen the developing doctor fixing screw A.
5) Insert the thickness gauge (0.46mm) again as shown in the figure
below.
6) Push the developing doctor in the arrow direction and tighten the
fixing screw.
7) Check the developing doctor gap. If the clearance is within the
specified range, fix the screw with screw lock.
8)
After completion of the job, apply screw lock.
20 50mm
Contents of adjustment
20 50mm
AR-P350 ADJUSTMENTS-1
<Adjustment specification>
Both sides
Position at 20 - 50mm
B. MG roller main pole position adjustment
This adjustment is performed in the following cases:
•When developer is scattered.
•When an uneven image is produced.
1) Remove the developer cartridge and the developing unit from the
machine.
2) Remove the DV cover and the developer from the developing unit.
3) Remove the DVF handle and put the developing unit on a flat
surface.
4) Bind a string to a needle.
5) Hold the string and move the needle toward the MG roller.
(Since the MG roller diameter is small, use of a clip cannot make an
accurate adjustment.)
6) With the needle tip 2 - 3 mm apart from the MG roller surface, mark
the point on the MG roller in the elongated line of the needle.
(Keep the needle and the MG roller apart from each other.)
7) Measure the distance from the marking position to the P surface of
the developing unit, and check that the distance is within the
specified range.
If the distance is not within the specified range, perform the adjustment in
the following procedures.
8) Loosen the fixing screw of the main pole fixing plate.
Ambient
Specification
temperature
0.45±0.03mm
5 - 30°C
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