DOWNLOAD Sharp AR-203 (serv.man5) Service Manual ↓ Size: 14.96 MB | Pages: 127 in PDF or view online for FREE

AR-203E/5420/M200/M201  DISASSEMBLY AND ASSEMBLY  8 - 21

2) Remove the screw, and remove the DV cover.

3) Remove the used developer.

4) Supply new developer.

1) Peel off the old DV seal.

2) Clean the attachment surface with alcohol.

3) Attach the new DV seal to the reference position.

1) Peel off the old DV blade.

2) Clean the attachment surface with alcohol.

3) Attach the new DV blade to the reference position.

1) Remove the screw, and remove the DV doctor.

* Clean the edge (A) section.

■ Note for installation

1) Insert the DG check gauge as shown in the figure.

2) After checking, install the doctor gap and fix it with a screw.

* Apply screw lock to the screw tightening section as shown in the

figure below.

1)

2)

B

X - X

D

C

B

A

A

B

0

0

X

X

D

0

0.5

0.5

0.5

0.5

0

DV side seal F

DV side seal R

Bump

Magnification ratio:

200%

C

B

A

B

A

DV-BOX AS

0.5

0

DV blade IC

1)

2)

A

1)

F/R

secti

on

C

sec

tion

REAR

MG-ROL

DG:1.5

5

0.15

DG:1.5

0.10

FRONT

20

20

10

10

110

F

C

R

* After checking the DG,

apply screw lock.

DG check

gauge

DG check

gauge

DG check

gauge

DG check

gauge

1

2

DG check
position

AR-203E/5420/M200/M201  DISASSEMBLY AND ASSEMBLY  8 - 22

1) Remove the Mylar.

2) Remove the screw, and remove the DV sensor.

* Clean the sensor (A) section.

1) Remove the rear cabinet.

2) Remove two screws.

3) Remove the Duplex motor cover.

4) Remove the Duplex motor.

Note: When reassembling, be sure to engage the Duplex motor

gear with the belt on the main body side.

For assembly, reverse the disassembly procedure.

1) Remove four screws.

2) Remove the spring, and the earth wire.

3) Remove the reverse unit.

4) Bend the reverse roller and remove it.

For assembly, reverse the disassembly procedure.

No.

Part name Ref.

1

Duplex motor

1)

2)

2)

A

3)

No.

Part name Ref.

1

Reverse roller

1

2

3

1

AR-203E/5420/M200/M201  ADJUSTMENTS  9 - 1

The copy magnification ratio must be adjusted in the main scan-
ning direction and in the sub scanning direction. To adjust, use
SIM 48-1.

The main scanning (front/rear) direction magnification ratio adjust-
ment is made automatically or manually.

Automatic adjustment: The width of the reference line marked on
the shading correction plate is scanned to perform the main scan-
ning (front/rear) direction magnification ratio adjustment automati-
cally.

Manual adjustment: The adjustment is made by [Copy quantity]
keys (or [Numeric] keys for the AR-M200/M201) operations. (In
either of the automatic and manual adjustments, the zoom data reg-
ister set value is changed for adjustment.)

The magnification ratio in the sub scanning direction is adjusted by
changing the carriage (scanner) scanning speed.

1) When the main PWB is replaced.

2) When the EEPROM in the main PWB is replaced.

3) When "U2" trouble occurs.

4) When repairing or replacing the optical section.

• Screwdriver (+)

• Scale

1) Set the scale vertically on the document table. (Use a long

scale for precise adjustment.)

2) Set the copy magnification ratio to 100%.

3) Make a copy on A4 or 81/2" x 11" paper.

4) Measure the length of the copied scale image.

5) Calculate the main scanning direction magnification ratio. 

Main scanning direction magnification ratio

6) Check that the copy magnification ratio is within the specified

range. If it is not within the specified range, perform the follow-
ing procedures.

7) Execute SIM 48-1 to select the main scanning direction copy

magnification ratio adjustment mode.
To select the adjustment mode, use the [Exposure mode selec-
tor] key (or [

] [

] key for the AR-M200/M201).

In the case of the automatic adjustment, when the START switch is
pressed, the mirror base unit moves to the white plate for shading
to scan the width of the reference line, calculating the correction
value and displaying and storing this value.

After execution of the automatic adjustment, go out from the simu-
lation mode and make a copy to check the magnification ratio.

If the magnification ratio is not in the specified range (100 ± 1.0%),
manually adjust as follows.

(AR-203E/5420)

(AR-M200/M201)

8) Enter the new set value of main scanning direction copy magni-

fication ratio with the copy quantity key (or [Numeric] key for the
AR-M200/M201), and press the [START] key.

9) Change the set value and repeat the adjustment until the ratio is

within the specified range.
When the set value is changed by 1, the magnification ratio is
changed by 0.1%.

1) When the scanner unit drive section is disassembled or the part

is replaced.

2) When the main PWB is replaced.

3) When the EEPROM in the main PWB is replaced.

4) When "U2" trouble occurs.

• Scale

=

Copy image dimensions

X 100 (%)

Original dimension

Adjustment mode

Display lamp

Default

Main scanning direction 
magnification ratio

TEXT mode lamp

50

OC mode sub scan 
direction magnification ratio

PHOTO mode lamp

50

Adjustment mode

Display 

item

LED

Default

Main scan direction 
magnification ratio

F-R

PRINT mode lamp

50

OC mode sub scan 
direction magnification ratio

SCAN

SCAN mode lamp

50

100

110

120

130

150

140

mm
1/2mm

JAPAN

HARDENED

STAINLESS

Shizuoka

100

110

120

130

150

140

mm
1/2mm

JAPAN

HARDENED

STAINLESS

Shizuoka

110

10

20

10

20

(When a 100mm scale is used as the original.)

Paper feed

direction

Reference

Comparison point

Original (Scale)

Copy

AR-203E/5420/M200/M201  ADJUSTMENTS  9 - 2

1) Set the scale on the document table as shown below. (Use a

long scale for precise adjustment.)

2) Set the copy magnification ratio to 100%.

3) Make a copy on A4 or 81/2" x 11" paper.

4) Measure the length of the copied scale image.

5) Calculate the sub scanning direction copy magnification ratio

using the formula below.

6) Check that the actual copy magnification ratio is within the

specified range. (100 ± 1.0%).
If it is not within the specified range, perform the following pro-
cedures.

7) Execute SIM 48-1 to select the sub scanning direction copy

magnification ratio adjustment mode.
To select the adjustment mode, use the [Exposure mode selec-
tor] key (or [

] [

] key for the AR-M200/M201). (PHOTO

lamp ON (or SCAN mode lamp ON for the AR-M200/M201))

8) Enter the new set value of sub scanning direction copy magnifi-

cation ratio with the [Copy quantity] keys (or [Numeric] keys for
the AR-M200/M201), and press the [START] key.

Repeat procedures 1) - 8) until the sub scanning direction actual
copy magnification ratio in 100% copying is within the specified
range.

When the set value is changed by 1, the magnification ration is
changed by 0.1%.

There are following eleven kinds of image position adjustments,
which are made by laser control except for the image scan start
position adjustment. For the adjustments, SIM 50-01 and  50-10 are
used.

To select the adjustment mode with SIM 50-01, use the [Exposure
mode selector] key.

The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.

: Supported for the installing model and skipped for non-install-

ing mode.

To select the adjustment mode with SIM 50-10, use the [Exposure
mode selector] key.

The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.

: Supported for the installing model and skipped for non-install-

ing mode.

=

Copy image dimensions

X 100 (%)

Original dimension

100

110

120

130

150

140

mm
1/2mm

JAPAN

HARDDENCD

STAINLESS

Shizuoka

100

110

120

130

150

140

mm
1/2mm

JAPAN

HARDDENCD

STAINLESS

Shizuoka

110

10

20

10

20

Original (Scale)

Paper feed

direction

Reference

Comparison point

Copy

No.

Mode

SIM

1

Print start position (Main cassette paper feed)

50-01

2

Print start position (2nd cassette paper feed)

50-01

3

Print start position (Manual paper feed)

50-01

4

Image lead edge void amount

50-01

5

Image scan start position

50-01

6

Image rear edge void amount (Cassette paper feed) 50-01

7

Image rear edge void amount (Manual paper feed)

50-01

8

Print center offset (Main cassette paper feed)

50-10

9

Print center offset (2nd cassette paper feed)

50-10

10

Print center offset (Manual paper feed)

50-10

11

2nd print center offset (Main cassette paper feed)

50-10

Adjustment mode

Lamp ON

Print start position 
(Main cassette paper feed)

AE, main cassette lamp

Print start position 
(2nd cassette paper feed)

AE, 2nd cassette lamp

Print start position 
(Manual paper feed)

AE, manual feed lamp

Image lead edge void quantity

TEXT lamp

Image scan start position

PHOTO lamp

Image rear edge void quantity

AE, TEXT, PHOTO lamp

Adjustment mode

Lamp ON

Print center offset 
(Main cassette paper feed)

AE, main cassette lamp

Print center offset (2nd cassette)

AE, 2nd cassette lamp

Print center offset 
(Manual paper feed)

AE, manual paper feed 
lamp

Second side center offset

TEXT lamp