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ADJUSTMENTS 10 - 2

9) Measure the distance H between the paper lead edge and the image 

print start position. Set the image print start position set value 
(AUTO, 1st tray  indicator ON) again.

•1 step of the set value corresponds to about 0.1mm shift.
•Calculate the set value from the formula below.
H/0.1(mm) = Image print start position set value

 

 <H: Print start position measurement value (mm)>

Example:

5/0.1 = 50 = about 50

Note:If the set value is not obtained from the above formula, perform the 

fine adjustment.

10) Set the lead edge void adjustment value (TEXT indicator ON)* again.
•1 step of the set value corresponds to about 0.1mm shift.
•Calculate the set value from the formula below.
B/0.05 (mm) = Lead edge void adjustment value

 

 <B: Lead edge void (mm)>

Example:

When setting the lead edge void to 2.5mm

 

:2.5 /0.05 = about 50

Note:If the set value is not obtained from the above formula, perform the 

fine adjustment.

*

2nd tray lead edge void adjustment: Exposure display <<AUTO + 
TEXT + PHOTO>>

 

Bypass tray lead edge void adjustment: (TEXT indicator and PHOTO 
indicator ON)

OC 2nd print surface (Auto duplex) lead edge position adjustment: 
SIM50-19 <<PHOTO>>
*

For the adjustment procedure, set to S 

→ D mode before execution.

Note:Before performing the 2nd print surface lead edge position 

adjustment and the lead edge void adjustment, be sure to perform 
the 1st print surface lead edge position adjustment in advance, and 
be sure to perform the 2nd print surface lead edge position 
adjustment and then the lead edge void adjustment in this 
sequence.

 

*

(Set to S  

→  D mode for before execution)

1) Set a scale on the OC table as shown below.

Note:Since the printed copy is used as a test chart, put the scale in 

paralled with the edge lines.

2) Make a copy, Then use the copy output as an original to make an 

SPF copy again.

3) Check the copy output. If necessary, perform the following 

adjustment procedures.

4) Execute SIM 50-6.
5) Set the SPF lead edge position set value (AUTO indicator ON) so 

that the same image is obtained as that obtained in the previous OC 
image lead edge position adjustment.

5

10

0mm

0mm

*

Fit the print edge with the paper edge, and perform the 

  lead edge adjustment. 

5

10

2.5mm

2.5mm

Adjustment 

mode

 SIM

 LED

Set

 value

Spec

 value

 Set

range

OC image lead 
edge position

 SIM
50-1

 PHOTO R/0.1

Lead edge 

void:

 

1 - 4mm

 

Image loss: 
3mm or 
less

 1 ~  99

1st tray print 
start position

AUTO

+

1st tray

B/0.1

2nd tray print 
start position

 AUTO

+

2nd tray

Bypass tray 
print start 
position

 AUTO

+

Bypass 

tray

Lead edge void

TEXT

B/0.05

OC 2nd print 
surface lead 
edge position 
adjustment

SIM

50-19*

 PHOTO  1 step: 

0.1mm shift

Adjustment mode

 SIM

 LED

 Set value  Spec value

 Set 

range

SPF image lead 
edge position
(1st print surface)

 SIM

 

50-6

AUTO 1 step: 

0.1mm shift

Lead edge 
void:

 

1 - 4mm

Image loss: 
3mm or 
less

 1 ~ 99

(2nd print surface)

TEXT

ADJUSTMENTS 10 - 3

1) Set a scale as shown in the figure below.

2) Set the document size to A4 (8.5" x 11"), and make a copy at 100%.
3) If necessary, perform the following adjustment procedure.

4) Execute SIM 50-1 and set the density mode to AUTO + TEXT + 

PHOTO (Rear edge void).The currently set adjustment value is 
displayed.

5) Enter the set value and press the [START] key. The correction value 

is stored and a copy is made.

*

1st print surface (auto duplex) rear edge void adjustment:

 

SIM50-19 <<AUTO>>

*

2nd print surface (auto duplex) rear edge void adjustment:

 

SIM50-19<<TEXT>>

*

Set to S 

→ D mode before execution.

Note:Before performing the 2nd print surface rear edge void adjustment, 

be sure to perform the 2nd print surface lead edge position 
adjustment. Never reverse the sequence.

*

 Set to S 

→ D mode before execution

1)  Set a test chart (UKOG-0089CSZZ) on the document table.
2) Select a paper feed port and make a copy. Compare the copy and 

the test chart. If necessary, perform the following adjustment 
procedure.

3) Execute SIM 50-10. After completion of warm-up, shading is 

performed and the currently set off center adjustment value of each 
paper feed port is displayed. 

4) Enter the set value and press the [START] key. The correction value 

is stored and a copy is made.

*

2nd print surface (auto duplex) off-center adjustment:

 

SIM50-10 (TEXT, 1st tray indicator)

 
<Adjustment specification>

Note:Before performing this adjustment, be sure to check that the paper 

off center adjustment (SIM 50-10) is completed.

1) Set a test chart (UKOG-0089CSZZ) on the document table.
2) Select a paper feed port and make two copies. Compare the 2nd 

copy and the test chart. If necessary, perform the following 
adjustment procedure.

*

The 1st copy does not show the void. Be sure to check the 2nd copy.

3) Execute SIM 26-43 and set the density mode to AUTO(right edge 

void) + TEXT (Left edge void).

 

The currently set adjustment value is displayed.

4) Enter the set value and press the [START] key. The correction value 

is stored.

*

The void adjustment values on the right and the left must be the 
same.

 

1) Remove the OC glass and the right cabinet.

Mode

 SIM

 LED

 Set value

 Specifi- 

cation

 Set 

range

Rear edge void

 SIM 
50-1

AUTO

 + 

TEXT

+

PHOTO

1 step: 
0.1mm shift

4mm or 
less

 1 ~ 99

 

1st print 
surface rear 
edge void

SIM 

50-19*

AUTO

2nd print 
surface rear 
edge void

 SIM 

50-19*

 TEXT

Scale image

Paper rear edge

Void amount (Standard value: 4mm or less) 

Mode

 SIM

 LED

 Set value

 Specifi- 

cation

 Set 

range

Paper off 

center

 SIM 

50-10

 AUTO

+

Selected 

tray ON

Add 1: 
0.1mm shift 
to R side. 

Reduce 1: 
0.1mm shift 
to L side.

Single:

 

Center

 

±2.0mm

 1 ~ 99

2nd print 

surface off-

center

 SIM 

50-10

 TEXT

+

1st tray

Duplex:

 

Center

 

±2.5mm

ode

 SIM

 LED

 Set value

 Specifi-

cation

 Set 

range

Left edge void

 SIM 

26-43

AUTO

(right 

edge)

+

TEXT

(left edge)

1 step: 
0.5mm shift

 0 ~ 10mm  0 ~ 10

(1)

(1)

(2)

(3)

(3)

(4)

ADJUSTMENTS 10 - 4

2) Loosen the copy lamp unit wire fixing screw.

3) Manually turn the mirror base drive pulley and bring No. 2/3 mirror 

base unit into contact with the positioning plate. At that time, if the 
front frame side and the rear frame side of No. 2/3 mirror base unit 
are brought into contact with the positioning plate at the same time, 
the mirror base unit parallelism is proper. If one of them is in contact 
with the positioning plate, perform the adjustment of 4).

4) Loosen the set screw of the scanner drive pulley which is not in 

contact with No. 2/3 mirror base unit positioning plate.

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

scanner drive pulley until the positioning plate is brought into contact 
with No. 2/3 mirror base unit, then fix the scanner drive pulley.

6) Put No. 2/3 mirror base unit on the positioning plate again, push the 

projections on the front frame side and the rear frame side of the 
copy lamp unit to the corner frame, and tighten the wire fixing screw.

Wire fixing screw

ADJUSTMENTS 10 - 5

This adjustment must be performed in the following cases:
•When the mirror base drive wire is replaced.
•When the lamp unit, or No. 2/3 mirror holder is replaced.
•When a copy as shown is made.

1) Set A3 (11" x 17") white paper on the original table as shown below.

2) Open the original cover and make a normal (100%) copy. 
3) Measure the width of the black background at the lead edge and at 

the rear edge. 

If the width (La) of the black background at the lead edge is equal that 
(Lb) at the rear edge, there is no need to execute the following 
procedures of 4) ~ 7).

4) Loosen the mirror base drive pulley fixing screw on the front frame 

side or on the rear frame side. 

5)Tighten the mirror base drive pulley fixing screw. 

La = Lb

6) Execute the main scanning direction (FR) distartion balance 

adjustment previously described in 2) again.

When there is no skew copy in the mirror base scanning direction and 
there is no horizontal error (right angle to the scanning direction), the 
adjustment can be made by adjusting the No. 2/3 mirror base unit rail 
height.
Before performing this adjustment, be sure to perform the horizontal 
image distortion adjustment in the laser scanner section. 
This adjustment must be performed in the following cases:
•When the mirror base wire is replaced.
•When the copy lamp unit or No. 2/3 mirror unit is replaced. 
•When the mirror unit rail is replaced or moved.
•When a following copy is made.

Lb

La

Original

Copy

Paper exit 
direction

Fit the paper edge and
 the glass holding plate edge. 

 A3 

(11" 

x 17") white paper

Glass holding plate

Allow a little space. 

Paper exit direction

La: Lead edge black background width
Lb: Rear edge black background width

A

B

Rear side

Front side

When La < Lb

Turn the mirror base drive pulley on the front frame side in the
arrow direction A.
(Do not move the mirror base drive pulley shaft.)

When La > Lb

Turn the mirror base drive pulley on the front frame side in the
arrow direction A.
(Do not move the mirror base drive pulley shaft.)

Original

Copy A

Copy B