Sharp AR-M350N Service Manual page 160

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1) Hold and push the [MENU] key and the [OK] key, and turn on the
power. ("PCU DIAG MODE ***" is displayed.)
*
Do not touch the keys for about 8sec after releasing fingers from
the above keys.
2) Push the [MENU] key several times until "TEST PRINT" is displayed,
and push the [OK] key to enter the test print mode.
3) Push the [MENU] key several times until "PRITN PATTERN" is
displayed, and set "71".
4) Push the [MENU] key several times until "CASSETTE" is displayed,
and check with [
] key that the paper for tray 1 is properly set for the
destination.
*
AB series: "A4" is displayed
*
Inch series: LETTER is displayed.
5) Push the [OK] key to make self-print.
6) Check the output print.
7) Loosen two fixing screws of the LSU unit
(M4 screws which are fixing the LSU and the top plate).
8) Turn the adjustment screw on the upper side (on the back of the
printer operation panel) clockwise or counterclockwise to adjust the
height of the LSU front side.
9) After completion of the adjustment, tighten two fixing screws of the
LSU unit.
10) Print again in the grid pattern and check the print.
11) Repeat procedures 7) to 10) until the specification is satisfied.
Print lead edge
<Specification>
Measuring
Specification
point
Print distortion
Self print
= 90° ± 0.13°
adjustment
pattern 71
B. Print off-center adjustment
This adjustment is performed in the following cases:
Before executing this adjustment, the following adjustments must have
been completed.
After completion of this adjustment, the following adjustment must be
performed.
1) Hold and push the [MENU] key and the [OK] key, turn on the power.
2) Push the [MENU] key several times until "TEST PRINT" is displayed,
3) Make a print with "1".
4) Push the [MENU] key several times until T1 OFF CENTER ADJ is
5) Check the print and use [
6) If the option paper feed unit or the automatic duplex unit is installed,
= >
Set value
changes about
0.25 degrees for 1 scale
of adjustment.
AR-P350 ADJUSTMENTS-3
•When the center of print is misaligned.
(Check with the self print pattern "1".)
•When the LSU is replaced.
•When the option paper feed unit or the automatic duplex unit is
installed or replaced.
•LSU right-angle adjustment
•Print magnification ratio adjustment
• Void area adjustment
("PCU DIAG MODE ***" is displayed.)
*
Do not touch the keys for about 8sec after releasing fingers from
the above keys.
and push the [OK] key to enter the test print mode.
displayed, and push the [OK] key.
OFF CENTER ADJ so that the off-center value is within the specified
range.
make an adjustment for each unit.
*
When using the duplex unit, set DUPLEX to USE.
=
Print lead edge
>
Measurement
reference
Standard tray
Output
self print off-
pattern 1
center
Center line
(T1 OFF
CENTER ADJ)
No. 2 tray self
print off-center
(T2 OFF
CENTER ADJ)
No. 3 tray self
print off-center
(T3 OFF
CENTER ADJ)
No. 4 tray self
print off-center
(T4 OFF
CENTER ADJ)
Manual feed
tray self print
off-center
(MFT OFF
CENTER ADJ)
ADU Self print
off-center
(ADU OFF
CENTER ADJ)
] or [
] key to adjust the value of T1
Specification
Set value
0 ±1.5mm
Shift of
0.1mm for
set value 1.
When the
option
paper feed
unit is
installed.
0 ±1.5mm
When the
option
automatic
duplex unit
is installed.

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