Adjustments; Adjustment Item List; Copier Adjustment - Sharp AR-M160 Service Manual

[6]ADJUSTMENTS

1.Adjustment item list

Section
A Process (1)
section
(2)
(3)
(4)
B Mechanism (1)
section
(2)
(3)
(4)
(5)
(6)
(7)
(8)
C Image density (1)
adjustment

2.Copier adjustment

A.Process section
(1) Developing doctor gap adjustment
1) Loosen the developing doctor fixing screw A.
2) Insert a thickness gauge of 1.5mm to the three positions at 20mm
and 130mm from the both ends of the developing doctor as shown.
3) Push the developing doctor in the arrow direction, and tighten the
developing doctor fixing screw. (Perform the same procedure for the
front and the rear frames.)
4) 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
Both ends (20mm from the both ends) :
C (Center) (150mm from the both ends) :
Adjustment item
Developing doctor gap adjustment
MG roller main pole position adjustment
Developing bias voltage check
Main charger voltage check
Image position adjustment
Main scanning direction (FR direction) distortion balance
adjustment
Main scanning direction (FR direction) distortion adjustment
Sub scanning direction (scanning direction) distortion
adjustment
Main scanning direction (FR direction) magnification ratio
adjustment
Sub scanning direction (scanning direction) magnification ratio
adjustment
Off center adjustment
SPF white correction pixel position adjustment
(required in an SPF model when replacing the lens unit)
Copy mode
+0.1
1.5 mm
- 0.15
+0.15
1.55 mm
- 0.2
AR-M205 ADJUSTMENT 6-1
Adjustment procedure/SIM No.
Developing doctor gap adjustment
MG roller main pole position adjustment
SIM-50
No. 2/3 mirror base unit installing position adjustment
Copy lamp unit installing position adjustment
Rail height adjustment
Winding pulley position adjustment
SIM 48-1
OC mode in copying (SIM 48-1)
SPF mode in copying (SIM 48-5)
OC mode (SIM 50-12)
SPF mode (SIM 50-12)
SIM63-7
SIM 46-1
(2) MG roller main pole position adjustment
1) Remove and separate the waste toner box and put the developing
unit on a flat surface.
2) Tie a string to a needle or a pin.
3) Hold the string and bring the needle close to the MG roller
horizontally. (Do not use paper clip, which is too heavy to make a
correct adjustment.) (Put the developing unit horizontally for this
adjustment.)
4) Do not bring the needle into contact with the MG roller, but bring it to
a position 2 or 3mm apart from the MG roller. Mark the point on the
MG roller which is on the extension line from the needle tip.
5) Measure the distance from the marking position to the top of the
doctor plate of the developing unit to insure that it is 18mm.
If the distance is not within the specified range, loosen the fixing
screw A of the main pole adjustment plate, and move the adjustment
plate in the arrow direction to adjust.