AR-250 (serv.man2). AR250 Specifications - Sharp Copying Equipment Specification (repair manual). Page 2

No.

AR-280/285/335

AR-250/281/286/336

Page

Section

Content

Change

Remark

8-51

[8]-2-C

43 -1   Operation/Procedure

Change

Table

8-55

[8]-2-C

44 -15   Operation/Procedure

Change

GIRD BIAS:
    Main charger grid voltage (Equivalent to 
    SIM 8-2 for drum type B.) (475)

GRID BIAS:
    Main charger grid voltage (Equivalent to 
    SIM 8-2 for drum type B.) (500)

9-3

~

9-27

[9]-3

Details of maintenance

Change

The cycle in the table is same as that of the
AR-335, and the illustration is same as that of
the AR-405.

10-5

[10]-5-C Copy lamp

Change

Refer to AR-405
Service Manual.

The change content is same as AR-405.

10-6

[10]-7

Laser unit

Change

Refer to AR-405
Service Manual.

The change content is same as AR-405.

12-2

[12]-3-B

(3) Laser beam power correction 1

I

llust

Value change

 0.2mW (max)                           
 Laser beam power correction value (

∆

LPc1)

 0.12mW (max)                           
 Laser beam power correction value (

∆

LPc1)

(4) Main charger grid voltage correction 1

I

llust

Value change

95v
Main charger grid voltage correction value

48v
Main charger grid voltage correction value

12-3

[12]-3-B

(5) Developing bias voltage correction
a. Outline and purpose

Value change

2)  Connect the three points of three toner patch

density points with strait lines, and check that
it reaches the reference density "38" (set with
SIM 44-4).
If the above condition is satisfied, obtain the
correction developing bias voltage (Vdbc(n))
for the reference density "38" by linear
approximation.

2)  Connect the three points of three toner patch

density points with strait lines, and check that
it reaches the reference density "58" (set with
SIM 44-15).
If the above condition is satisfied, obtain the
correction developing bias voltage (Vdbc(n))
for the reference density "58" by linear
approximation.

Destination

Pre-heat mode fusing temperature set value

MODEL

AR-250

AR-230/280/285

series

AR-2X1/2X6/3X1

series

AR-330/335

series

AR-3X6 series

AR-4XX series

U.S.A. (Inch)

120

125

130

140

Canada (Inch)

120

125

130

140

Other (Inch)

120

125

130

140

Japan

—

130

130

140

Other (AB)

120

125

130

140

Europe (AB)

105

110

130

140

U.K. (AB)

105

110

130

140

Aus. (AB)

105

110

130

140

AR-336

– 2 –

4/8/1999