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1) Scanner motor trouble

*

JOB No.

Content

ADJ M2/ADJ 2

Sub scanning direction copy distortion
adjustment

*

*

*

Enforcement
time

JOB No

Content

S 004

When any part in the scanner
(reading) section is
disassembled or replaced.

ADJ M2/
ADJ 1

When the scanner unit
parallelism adjustment is
performed.

Cycle

—

Condition

When the copy image
distortion is outside the
specified range.

*

1) The scanner unit parallelism adjustment (mechanical adjustment)

is completed.

2) The scanner drive wire tension is proper.

*

1) Make a test chart on A4 (11" 

×

 8.5") paper as shown below. (Draw

a rectangular with four right angles.)

2) Set the test chart which was made in procedure 1) on the docu-

ment table, and make a copy on A4 (11" 

×

 8.5") paper with the

document cover open.

ADJ M2/ADJ1

203mm

203mm

D

D

D    1.0mm

L=10mm

L

L

L

L

Test chart

7 – 5

3) Check the sub scanning direction distortion.

If La = Lb, there is no distortion.

If there is any distortion in the sub scanning direction, perform the
following procedures.

4) Loosen either one of the two fixing screws of the scanner unit

drive pulley.

5) Without moving the scanner unit drive shaft, manually turn the

scanner unit drive pulley to adjust the parallelism of the scanner
unit A. (Change the relative positions of the scanner unit drive
pulley and the drive shaft.)

6) Tighten the scanner unit drive pulley fixing screw.

Repeat procedures 2) 

∼

 6) until the condition of procedure 3) is

satisfied.

*

JOB No.

Content

ADJ M2/ADJ 1

Scanner unit parallelism adjustment
(mechanical adjustment)

*

JOB No.

Content

ADJ M2/ADJ 3

Main scanning direction copy distortion
adjustment

*

Name

Scale

Parts code/Price rank

—

*

*

*

Enforcement
time

JOB No

Content

S 004

When any part in the scanner
(reading) section is
disassembled or replaced.

ADJ M2/
ADJ 2

When the sub scanning
direction distortion is
performed.

Cycle

—

Condition

When the copy image
distortion is not within the
specified range.

*

1) The scanner unit parallelism adjustment (mechanical adjustment)

is completed.

2) The scanner drive wire tension is proper.

3) The sub scanning direction copy distortion is within the specified

range.

*

1) Make a test chart on A4 (11" 

×

 8.5") paper as shown below. (Draw

a rectangular with four right angles.)

2) Set the test chart which was made in procedure 1) on the docu-

ment table, and make a copy on A4 (11" 

×

 8.5") paper with the

document cover open.

La

Lb

ADJM2/ADJ3

203mm

203mm

D

D

D    1.0mm

L=10mm

L

L

L

L

7 – 6

3) Check the main scanning direction distortion.

If the four angles of the copy are right angles, there is no distor-
tion.

If there is any distortion in the sub scanning direction, perform the
following procedures.

4) Check the distortion difference (distortion balance) between the

right and the left sides.

If Lc = Ld, the image distortions of the right and the left sides are
equal to each other.

If the above condition is satisfied go to procedure 9).

If the above condition is not satisfied, perform the following proce-
dures.

5) Check the height of the scanner rail on the rear frame side.

If the scanner rail heights (on the right and the left sides) from the
scanner chassis level are not 9.0mm, adjust so that they are
9.0mm.

6) Set the test chart made in procedure 1) on the document table,

and make a copy on A4 (11" 

×

 8.5") paper.

7) Check the distortion difference (distortion balance) between the

right and the left sides.

If Lc = Ld, the image distortions of the right and the left sides are
equal to each other.

If the above condition is satisfied go to procedure 9).

If the above condition is not satisfied, perform the following proce-
dures.

8) Change the height balance of the scanner rail on the front frame

side.

Repeat procedures 6) 

∼

 8) until the image distortion difference

(distortion balance) becomes zero.

9) If the image distortion difference becomes zero, change the over-

all height of the front frame side scanner rail.

10) Set the test chart made in procedure 1) on the document table

and make a copy on A4 (11" 

×

 8.5") paper. Check that the main

scanning direction distortion is within the specified range.

Repeat procedures 9) 

∼

 10) until the main scanning direction dis-

tortion is within the specified range.

*

JOB No.

Content

ADJ M2/ADJ 2

Copy sub scanning direction distortion

*

JOB No.

Content

ADJ M3

Copy magnification ratio adjustment

*

Name

Scale

Parts code/Price rank

—

Content

Preliminary 

work

After-

work

JOB No

JOB No

ADJ M3

Copy
magnification
ratio adjustment

ADJ 1 Main scanning

direction
magnification
ratio (focus,
resolution)
adjustment

ADJ M3/
ADJ 3

ADJ M4/
ADJ 2

ADJ 2 Sub scanning

direction copy
magnification
ratio adjustment

ADJ M4/
ADJ 1

*

Copy A

Copy B

Ld

Lc = Ld

Lc

Ld

Lc

Lc    Ld

Though there is some distortion,
there is no difference between the
right and the left distortions.

There is some difference between
the right and the left distortions

ADJ M4

7 – 7

*

(Test command (set value))

Range (MIN)

0

Range (MAX)

99

Standard value

50

Default

50

(Copy resolution, main scanning direction copy magnification ratio)

Copy image position

Copy resolution

Center

5.0 line/mm

Corner

4.5 line/mm

Copy magnification ratio

display value

Actual copy magnification ratio

100%

Within 

±

 1.0% of the displayed

copy magnification ratio

*

Test command (Simulation)

MODE

Normal

MAIN CODE

48

SUB CODE

1

*

Enforcement
time

JOB No

Content

S 004

When any part in the scanner
(reading) section is
disassembled or replaced.

S 009/Ua 002

When replacing the MCU PWB
In case of U2 trouble

Cycle

—

Condition

When the main scanning
direction copy magnification
ratio and resolution are not in
the specified range.

*

1) The copy image distortion is within the specified range.

2) The copy image is free from deflection.

3) The copy image density is within the specified range.

*

1) Enter the simulation 48-1 mode.

2) Select the main scanning direction (manual) adjustment mode

with the copy picture quality mode select key.
(The currently set copy magnification ratio adjustment value is
displayed on the copy quantity display.)

Adjustment mode

Adjustment

mode (Lighting)

Note

Main
scanning 
direction 

Auto

Auto copy
mode lamp

The adjustment is made
automatically by the
software.

Manual

Manual copy
mode lamp

The adjustment is made
manually.

Sub
scanning 
direction

Manual

Photo copy
mode lamp

The adjustment is made
by changing the
scanning speed.

3) Set the adjustment value to 50 and press the start button.

(The adjustment value is stored and a copy is made at the copy
magnification ratio corresponding to the adjustment value.)
The adjustment value can be set in the range of 0 

∼

 99.

4) Turn off the power.

5) Check the CCD unit No. (OID) specified on the CCD unit.

6) Loosen the CCD unit fixing screw.

7) Set the dimension (L) from the CCD edge to the center of the hole

in the scanner (reading) unit to the value calculated from the
following formula, and fix it.

L = 10.5 + CCD unit No. (OID)

8) Place the scale on the document table as shown below, and make

a copy in the text copy mode at 100% in the proper density.

CCD No

L=10.5+CCD No(OID)

Hole

Scale

7 – 8