Adjustment Item List; Details Of Adjustment; Developing Doctor Gap Adjustment - Sharp MX-M260 Service Manual

[5] ADJUSTMENTS

1. Adjustment item list

Section
A Process section
B Mechanism section
C Image density
(exposure) adjustment

2. Details of adjustment

A. Process section

(1) Developing doctor gap adjustment

1) Remove the doctor cover.
Adjustment item
(1) Developing doctor gap adjustment
(2) MG roller main pole position adjustment
(3) Developing bias voltage adjustment
(4) Grid bias voltage adjustment
(1) Print start position adjustment
(2) RSPF image lead edge position adjustment
(3) Rear edge void adjustment
(4) Paper off center adjustment
(5) Left edge void area adjustment
(6) Main scanning direction (FR direction) distortion
balance adjustment
(7) Sub scanning direction (scanning direction)
distortion adjustment
(8) Main scanning direction (FR direction) distortion
balance adjustment
(9) Main scanning direction (FR direction)
magnification ratio adjustment
(10) Sub scanning direction (scanning direction)
magnification ratio adjustment
(11) Off center adjustment (RSPF mode)
(12) OC (RSPF) open/close detection position
adjustment
(13) Original sensor adjustment
(14) RSPF white correction pixel position adjustment
(required in an RSPF model when replacing the
lens unit)
(15) RSPF scan position auto adjustment
(1) Copy mode
MX-M260/M310/M260N/M310N ADJUSTMENTS 5 - 1
Adjustment procedure/SIM No.
Developing doctor gap adjustment
MG roller main pole position adjustment
SIM8-1
SIM8-2
SIM50-5
SIM50-6
SIM50-1
SIM50-10
SIM50-1-8
No. 2/3 mirror base unit installing position
adjustment
Copy lamp unit installing position adjustment
Winding pulley position adjustment
Rail height adjustment
SIM48-1-1
a OC mode in copying (SIM 48-1-2)
b RSPF sub scanning direction magnification ratio
(SIM48-1-3, 48-1-4)
SIM50-12
SIM41-3
SIM41-2, 41-4 (41-1)
SIM63-7
SIM53-8
SIM46-2
2) Loosen the developing doctor fixing screw A.
3) Insert a thickness gauge of 1.5mm to the positions of three screws
on the developing docter as shown.
F
A
4) Tighten the developing doctor fixing screw.
5) Check the clearance of the developing doctor. If it is within the
specified range, then fix the doctor fixing screw with screw lock.
∗
When inserting a thickness gauge, be careful not to scratch the
developing doctor and the MG roller.
<Adjustment specification>
Developing doctor gap
+0.1mm
F/C/R: 1.5
-0.15mm
R
A
C
A