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When deflection is made to the positive (+) side in the rough adjust-
ment, increase the value on the positive (+) side.
When the deflection is made to the negative (–) side in the rough ad-
justment, increase the value on the negative (–) side.

∗

A: Rough adjustment pattern

∗

B: Fine adjustment pattern

∗

C: Adjustment range

(Example) Set the simulation values as shown below.

A: 100

→

Reset value

A: 93 (=100 –7)

B: 112

B: 100 (=112 –12)

C: 95

C: 96 (=95+1)

D: 98

D: 109 (=98+11)

E: 102

E: 109 (=102+7)

F: 96

F: 118 (=96+22)

If the rough adjustment pattern or the fine adjustment pattern is not in
the above range, perform the following procedures.

5) Calculate the shift from the adjustment reference position for each

adjustment mode.
The sum of the shift of rough adjustment reference and the shift of
fine adjustment is the actual shift.
Shift (Correction value) = Rough adjustment shift + Fine adjust-
ment shift
The interval between scales of the rough adjustment reference
corresponds to 20. Be careful of polarities of the shift (positive or
negative) when calculating.

6) Select the mode to be adjusted with the scroll key.

7) Add or reduce to or from the current adjustment value, enter the

obtained value, and press the [OK] key.

•

When the shift (correction value) is positive:
Adjustment value = Current adjustment value + Shift (Correc-
tion value)

•

When the shift (correction value is negative:
Adjustment value = Current adjustment value – Shift (Correc-
tion value)

8) Press the [EXECUTE] key.

The adjustment pattern is printed.
Check that the conditions of procedure 4) are satisfied.
Repeat procedures 4) – 8) until the conditions of procedure 4) are
satisfied.

NOTE: When either of the adjustment values of the front and the

rear adjustment mode is changed, the other adjustment print
pattern may be varied. Be careful of that.

When the adjustment can be completed with a fine adjust-
ment, perform the front adjustment mode first, and then per-
form the rear adjustment mode after completion of the front
adjustment.

Before performing this adjustment, be sure to adjust the K
magnification ratio (SIM 50-10, H) properly.

This adjustment must be performed in the following cases:

•

When the scanner (writing) unit is replaced.

•

When the scanner (writing) unit is removed from the machine.

•

When a color image mis-resist occurs in the sub scanning direc-
tion.

•

When the installing position is changed.

•

When a U2 trouble occurs.

•

When the ICU main PWB is replaced.

•

When the EEPROM of the ICU main PWB is replaced.

(Example)
When the simulation is set to 105, 
newly set to 132 (= 105 + 27).

(Example)
When the simulation is set to 105, 
newly set to 78 (= 105 – 27).

20

20

∗

C

∗

A

∗

A

∗

B

∗

C

∗

B

7 –  12

1) Enter the SIM 50-21 mode.

2) Select the paper feed cassette of A4 (8 1/2" 

×

 11") paper in the

setup item E (PAPER SEL).

∗

Use the paper tray at the bottom.

3) Press the [EXECUTE] key. The adjustment pattern is printed.

4) Check the rough adjustment print pattern position and the fine ad-

justment print pattern position for each color.

•

Rough adjustment print pattern check
Check that the rough adjustment print pattern is at the center of
the rough adjustment reference pattern.

•

Fine adjustment print pattern check
Check that the fine adjustment print pattern is at the center of
the fine adjustment reference pattern.

(If the fine adjustment print pattern is in the range of 0 

±

 1 for the

scale of the fine adjustment reference pattern, there is no need to
adjust.)

1) Enter the SIM 50-21 mode.

2) Select the paper feed cassette of A4 (8 1/2" 

×

 11") paper in the

setup item E (PAPER SEL).

∗

Use the paper tray at the bottom.

3) Press the [EXECUTE] key. The adjustment pattern is printed.

4) Check the rough adjustment print pattern position and the fine ad-

justment print pattern position for each color.

•

Rough adjustment print pattern check
Check that the rough adjustment print pattern is at the center of
the rough adjustment reference pattern.

•

Fine adjustment print pattern check
Check that the fine adjustment print pattern is at the center of
the fine adjustment reference pattern.

(If the fine adjustment print pattern is in the range of 0 

±

 1 for the

scale of the fine adjustment reference pattern, there is no need to
adjust.)

1) Enter the SIM 50-21 mode.

2) Select the paper feed cassette of A4 (8 1/2" 

×

 11") paper in the

setup item E (PAPER SEL).

∗

Use the paper tray at the bottom.

3) Press the [EXECUTE] key. The adjustment pattern is printed.

4) Check the rough adjustment print pattern position and the fine ad-

justment print pattern position for each color.

•

Rough adjustment print pattern check
Check that the rough adjustment print pattern is at the center of
the rough adjustment reference pattern.

•

Fine adjustment print pattern check
Check that the fine adjustment print pattern is at the center of
the fine adjustment reference pattern.

(If the fine adjustment print pattern is in the range of 0 

±

 1 for the

scale of the fine adjustment reference pattern, there is no need to
adjust.)