Service manual

AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 4
<Specification>
<2> Print off-center adjustment
Items which must have been completed before this adjust-
ment.
• LSU right angle adjustment (If there is no distortion in self print,
the adjustment is not required.)
Items which must be executed after completion of this adjust-
ment.
• Each tray resist amount setting
• Print lead edge adjustment
• Front/rear and left/right void amount setting
1) Execute SIM50-10.
2) Set the paper feed tray and the magnification ratio for the
adjustment.
3) After entering the adjustment values, press START key, and
printing is started.
4) Check the off-center (distance from the paper edge) of the
printed copy. Repeat procedure 2) until the specification is
satisfied.
• For the duplex mode (Single
→ Duplex), add 10 to the above set value.
• When the print line is shifted toward a from the paper center, decrease the value.
• When the print line is shifted toward b from the paper center, increase the value.
<3> Each tray resist amount setting
Items which must have been completed before this adjust-
ment.
• LSU right angle adjustment (If there is no distortion in self print,
the adjustment is not required.)
• Print off-center adjustment
Items which must be executed after completion of this adjust-
ment.
• Print lead edge adjustment
• Front/rear and left/right void amount setting
1) Execute SIM 51-2.
2) Enter the resist adjustment value with 10-key.
3) Press [START] key.
When [START] key is pressed, the adjustment value is set and
paper feed and copying are performed.
4) Adjust the resist quantity so that paper is transferred stably.
Measuring
point
Specification Set value
Print
distortion
adjustment
Self print
pattern 71
θ
= 90° ± 0.13°
θ
changes about 0.25
degrees for 1 scale of
adjustment.
(A shifts
about 1mm.)
a
b
Print lead edge
2
SIMULATION 50-10
PRINT OFF-CENTER ADJUSTMENT. SELECT 0-8, AND PRESS
START.
0.TRAY SELECT 1 1.COPY START
2.MAGNIFICATION 100
(ADJUSTMENT DATA)
3.TRAY1 50 4.TRAY2 50 5.TRAY3 50
6.TRAY4 50 7.BPT 50 8.ADU 50
Adjustment position
Measurement
reference
Specification
Set value
Default Range
Tray 1 Tray 1 Output pattern
center line
0±1.5mm 50 0 - 99 Set value 1: 0.1mm shift
Tray 2 Tray 2
Tray 3 Tray 3/LCC left
Tray 4 Tray 4/LCC right
MFT Manual feed
ADU Duplex
a
b
Print lead edge
∗ This adjustment is executed when there is any lead edge vari-
ation or skew for each tray.
1
SIMULATION 51-2
RESIST TIMING ADJUSTMENT. SELECT 0-8, AND PRESS START.
0.TRAY SELECT 1 1.PRINT START
2.TRAY1 60 3.TRAY2 50 4.DESK 50
5.BPT 55 6.ADU 50
7.SPF(HIGH) 60 8.SPF(LOW) 75