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AL-1610
[7] ADJUSTMENTS
1. Adjustment item list
Section
A
Process section
B
Mechanism section
C
Image density adjustment
2. Copier adjustment
A. Process section
(1) Developing bias voltage adjustment (SIM 8-1)
•
Note:
Use a digital multi-meter with an internal resistance of
10MΩ or more.
1) Set the digital multi-meter range to DC700V.
2) Put the test rod of the digital multi-meter on the developing bias
voltage output check pin.
3) Execute SIM 8-1. (The developing bias voltage is outputted for 30
sec.)
4) Adjust the adjustment volume VR31 so that the output voltage is
within the specified range shown below.
<Adjustment specification>
Mode
Specification
Developing bias voltage
DC-400±8V
Adjustment item
(1)
Developing bias voltage output adjustment
(2)
Main charger voltage output adjustment
(3)
Transfer charger current adjustment
(1)
Image position adjustment
(2)
Main scanning direction (FR direction)
distortion balance adjustment
(3)
Main scanning direction (FR direction)
distortion adjustment
(4)
Sub scanning direction (scanning direction)
distortion adjustment
(5)
Main scanning direction (FR direction)
magnification ratio adjustment
(6)
Sub scanning direction (scanning direction)
magnification ratio adjustment
(7)
Off center adjustment
(8)
Document size detection sensor
(1)
Copy mode
SIM
SIM 8-1
VR31
7 – 1
Adjustment procedure/SIM No.
SIM 8-1
SIM 8-2/SIM 8-3
SIM 8-6
SIM 50-1/SIM 50-10
No. 2/3 mirror base unit installing position
adjustment
Copy lamp unit installing position adjustment
F rail height adjustment
Winding pulley position adjustment
SIM 48-1
a
OC mode in copying (SIM 48-2)
b
SPF mode in copying (SIM 48-5)
a
OC mode (SIM 50-13)
b
SPF mode (SIM 50-16)
SIM 41-2
SIM 46-1
(2) Grid bias voltage adjustment (SIM 8-2, SIM 8-3)
•
Note:
Use a digital multi-meter with an internal resistance of
10MΩ or more.
•
First adjust the grid LOW output, then adjust the grid HIGH
voltage.
1) Set the digital multi-meter range to DC700V.
2) Put the test rod of the digital multi-meter on the grid bias voltage
output check pin.
3) Execute SIM 8-3. (The grid bias voltage is outputted in the grid
bias LOW output mode for 30 sec.)
4) Adjust the adjustment volume VR52 so that the output voltage is
within the specified range shown below.
5) Execute SIM 8-2. (The grid bias voltage is outputted in the grid
bias HIGH output mode for 30 sec.)
6) Adjust the adjustment volume VR51 so that the output voltage is
within the specified range shown below.
<Adjustment specification>
Mode
Specification
Grid bias LOW
DC-400±20V
Grid bias HIGH
DC-525±10V
SIM
SIM 8-3
VR52
SIM 8-2
VR51
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