AR-205 (serv.man9). AR205 Service Manual-Adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 3

Section

Adjustment item

Adjustment procedure/SIM No.

A

Process
section

(1)

Developing doctor gap adjustment

Developing doctor gap adjustment

(2)

MG roller main pole position adjustment

MG roller main pole position adjustment

(3)

Developing bias voltage output adjustment

(4)

Main charger voltage output adjustment

B

Mechanism
section

(1)

Image lead edge position adjustment

SIM 50-1

(2)

Main scanning direction (FR direction) distortion
balance adjustment

No. 2/3 mirror base unit installing position adjustment

Copy lamp unit installing position adjustment

(3)

Main scanning direction (FR direction) distortion
adjustment

Rail height adjustment

(4)

Sub scanning direction (scanning direction) distortion
adjustment

Winding pulley position adjustment

(5)

Main scanning direction (FR direction) magnification
ratio adjustment

SIM 48-1

(6)

Sub scanning direction (scanning direction)
magnification ratio adjustment

a

OC mode in copying (SIM 48-2)

b

SPF mode in copying (SIM 48-5)

c

OC mode in FAX (SIM 48-6)

d

SPF mode in FAX (SIM 48-7)

(7)

Off center adjustment

a

OC mode (SIM 50-13)

b

SPF mode (SIM 50-16)

(8)

OC (SPF) open/close detection position adjustment

OC (SPF) open/close detection position adjustment

(9)

Document size detection sensor

SIM 41-3

C

Image density
adjustment

(1)

Copy mode

SIM 46-1

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. 

Developing doctor gap

Both ends (20mm from the both ends): 1.5

−

0.15

+

0.1

mm

C (Center)(150mm from the both ends): 1.55

−

0.2

+

0.15

mm

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 adjust-
ment plate in the arrow direction to adjust.

AR-205

AR-205 [6] ADJUSTMENT 05/24/1999

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