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4) Check the adjustment pattern image position.
Measure the dimensions from the paper center to the front and the
rear edge of the adjustment pattern to check that they are the
same.
rear edge of the adjustment pattern to check that they are the
same.
If A – B =
±
2.0mm, there is no need to adjust.
If the above condition is not satisfied, perform the following proce-
dure.
dure.
5) Change the adjustment value.
(Enter the adjustment value and press the [OK] key.)
When the adjustment value is increased, the image is shifted
backward.
When the adjustment value is decreased, the image is shifted for-
ward.
A change in the set value by 1 corresponds to a change in the
shift by about 0.1mm.
When the adjustment value is increased, the image is shifted
backward.
When the adjustment value is decreased, the image is shifted for-
ward.
A change in the set value by 1 corresponds to a change in the
shift by about 0.1mm.
Repeat procedures 3) – 5) until the condition of procedure 4) is satis-
fied.
If the above condition cannot be satisfied with the above procedures,
perform the following procedures.
fied.
If the above condition cannot be satisfied with the above procedures,
perform the following procedures.
6) Loosen the paper feed tray cover fixing screw, and shift the install-
ing position in the arrow direction.
Perform procedures from 2) again.
Perform procedures from 2) again.
Perform the above procedures for all paper feed units.
ADJ M15
Image position adjustment (Main
scanning direction) (Scanner (Writing))
scanning direction) (Scanner (Writing))
This adjustment must be performed in the following cases:
•
When the scanner (reading) section is disassembled.
•
When the scanner (reading) unit is replaced.
•
When the RADF section is disassembled.
•
When the RADF unit is installed.
•
When the RADF unit is replaced.
•
When a U2 trouble occurs.
•
When the ICU main PWB is replaced.
•
When the EEPROM of the ICU main PWB is replaced.
1) Set the adjustment chart on the document table.
2) Enter the SIM 50-12 mode.
The copy magnification ratio is automatically set to 400%.
3) Select the OC mode with the scroll key.
4) Press the COPY key. A copy is made.
5) Check the copy image center position.
If A – B =
±
4.0mm, there is no need to adjust. (400%)
If the above condition is not satisfied, perform the following proce-
dures.
dures.
6) Change the adjustment value.
(Enter the adjustment value and press the OK key.)
When the adjustment value is increased, the image is shifted
backward. When the adjustment value is decreased, the image is
shifted forward.
A change in the set value by 1 corresponds to a change in the
shift by about 0.4mm. (400%)
When the adjustment value is increased, the image is shifted
backward. When the adjustment value is decreased, the image is
shifted forward.
A change in the set value by 1 corresponds to a change in the
shift by about 0.4mm. (400%)
Repeat procedures 4) – 6) until the condition of procedure 5) is satis-
fied.
fied.
ADJ M16
Image position, image loss, void area
adjustment
adjustment
This adjustment must be performed in the following cases:
•
When the scanner (reading) section is disassembled.
•
When the scanner (reading) unit is replaced.
•
When the resist roller section is disassembled.
•
When a U2 trouble occurs.
•
When the PCU main PWB is replaced.
•
When the EEPROM of the PCU main PWB is replaced.
This adjustment uses SIM 50-2 and SIM 50-1.
The above two simulations are used in the following manner.
SIM 50-2: Rough adjustment
SIM 50-1: Fine adjustment
SIM 50-1: Fine adjustment
If the desired value is obtained by SIM 50-2, there is no need to per-
form SIM 50-1.
form SIM 50-1.
(Adjustment item)
No.
Adjustment item
SIM 50-2
set item
SIM 50-1
set item
Adjustment
value
1
Lead edge image loss
IMAGE
LOSS
LOSS
IMAGE
LOSS
LOSS
4.0
±
1.0mm
2
Lead edge void area
DEN-A
DEN-A
4.0
±
1.0mm
3
Rear edge void area
DEN-B
DEN-B
6.0
±
1.0mm
4
Image reference position
RRC-A
5
Paper timing
RRC-B
6
Distance between image lead edge
position and scale of 10mm
position and scale of 10mm
×
10
L1
7
Distance between paper lead edge
and image lead edge
and image lead edge
×
10
L2
Adjustment items 1 – 3 can be adjusted either with SIM 50-1 or with
SIM 50-2.
SIM 50-2.
The adjustment values 6 and 7 will affect the adjustment items 4 and
5 automatically.
5 automatically.
Therefore, adjusting the items 6 and 7 will lead to the same result as
adjusting the items 4 and 5 directly.
adjusting the items 4 and 5 directly.
A
B
A– B =±2.0mm
Half tone
Half tone
Direction A
Direction B
A
B
A – B = 4.0mm
(400%)
7 – 22
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