AR-M350 ADJUSTMENTS 9-1
[9] ADJUSTMENTS
1. Process section
A. High voltage output adjustment
(1) Developing bias output check and setup
1) Remove the rear cabinet to allow checking of the high voltage
monitor output pin.
2) Execute the simulation of the target high voltage.
(See the table below.)
3) Select the mode to be set with 10-key, and press START key.
4) Enter the set value with 10-key and press START key. The set value
is outputted for 30 sec.
5) Apply a high voltage tester between the measurement pin and the
frame.
Note: Take care not to short the measuring pin and the frame.
6) The unit stops after 30 sec of output.
Adjustment item
1 Process
section
A High voltage output adjustment
2 Engine
section
A LSU right angle adjustment
B Print off-center adjustment
C Resist quantity adjustment
3 Scanner
section
A Scanner unit distortion adjustment
B OC scan distortion adjustment
C Vertical image distortion balance adjustment
D Vertical image distortion balance adjustment
E Vertical (sub scanning direction) distortion adjustment
F Original detection light emitting unit height adjustment
G Original size detection photo sensor check
H Original size detection photo sensor adjustment
I
(D) SPF hinge height adjustment
J (D) SPF hinge diagonal adjustment (Front)
K Scan magnification ratio adjustment
L OC scan lead edge adjustment
M Original off-center adjustment
N Image density adjustment
O DSPF width detection adjustment
Default
Set range
Measurement
pin
High voltage
probe
impedance
Monitor output
voltage
Set value
MC grid MAIN GRID (SIM 8-2)
AUTO
AE mode
-650V±5V
645
200~900
CN2-7
100M
Ω
CHARACTER Text mode
-650V±5V
645
200~900
MIX
Text/Photo
mode
-650V±5V
645
200~900
PHOTO
Photo mode
-650V±5V
645
200~900
PRINTER
Printer mode
-650V±5V
645
200~900
FAX
Fax mode
-650V±5V
645
200~900
Transfer current (THV+ (SIM 8-6)
FRONT
Front
45PPM : 267
35PPM : 220
0~620
BACK
Back
45PPM : 310
35PPM : 267
0~620
Developing bias DV BIAS (SIM 8-1) AUTO
AE mode
-500V±5V
485
0~745
CN2-1
100M
Ω
CHARACTER Text mode
-500V±5V
485
0~745
MIX
Text/Photo
mode
-500V±5V
485
0~745
PHOTO
Photo mode
-500V±5V
485
0~745
PRINTER
Printer mode
-500V±5V
485
0~745
FAX
Fax mode
-500V±5V
485
0~745
PLUS
Positive bias
+150V±5V
150
0~255
Separation voltage SHV (SIM 8-17) FRONT
Front
+1.25V±0.1V
45PPM : 160
35PPM : 120
0~375
CN2-3
10M
Ω
BACK
Rear
+1.25V±0.1V
45PPM : 160
35PPM : 120
0~375
Transfer voltage THV (SIM 8-17)
-800V±10V
780
0~1250
CN2-5
10G
Ω
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