Sharp AR-M351U / AR-M451U (serv.man16) Service Manual ▷ View online
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 11
B. Vertical image distortion balance adjustment
(Copy lamp unit installing position
adjustment)
adjustment)
1) Insert the front/rear mirror base drive wire into the frame
groove and press and fix it with the wire holder. At that time,
do not tighten the wire fixing screw. Change the direction of
the lamp positioning plate. (F and R)
do not tighten the wire fixing screw. Change the direction of
the lamp positioning plate. (F and R)
2) Push the copy lamp unit onto the positioning plate, and tighten
the wire fixing screw.
<Note for assembling the copy lamp unit>
After fixing, manually shift the copy lamp unit a few times to check
that it moves smoothly.
C. Vertical image distortion balance adjustment
(No. 2/3 mirror base unit installing and
position adjustment)
position adjustment)
This adjustment is to adjust the parallelism of the mirror base to
the OPC drum surface and the original surface.
the OPC drum surface and the original surface.
1) Manually turn the mirror base drive pulley to bring mirror base
B into contact with mirror base positioning plate.
If, at that time, the front frame side and the frame side of mirror
base B are brought into contact with the mirror base position-
ing plate simultaneously, the parallelism is correct and there is
no need for adjustment.
If, at that time, the front frame side and the frame side of mirror
base B are brought into contact with the mirror base position-
ing plate simultaneously, the parallelism is correct and there is
no need for adjustment.
D. Vertical (sub scanning direction) distortion
adjustment [Winding pulley position
adjustment]
adjustment]
This adjustment is executed in the following cases:
• When the mirror base drive wire is replaced.
• When the lamp unit, or No. 2/3 mirror holder is replaced.
• When a copy shown below is made.
1) Set A3 white paper on the original table as shown below.
2) With the original cover open, make a normal (X 1.0) copy.
3) Measure the black distance at the lead edge and the rear
edge of the copy paper.
If La = Lb, the procedures 4) through 7) are not required.
Lb
La
Original
Paper
exit
direction
exit
direction
Copy
Glass holding plate
Fit the paper edge and
the glass holding plate edge
the glass holding plate edge
A3 white paper
Paper exit direction
La : Lead edge black background section
Lb : Rear edge black background section
Lb : Rear edge black background section
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 12
4) Loosen the fixing screw of the front or the rear frame mirror
base drive pulley.
5) Tighten the fixing screw of the mirror base drive pulley.
6) Perform procedures 1) through 3).
7) If La is not equal to Lb, perform procedures 4) and 5).
If La = Lb, the adjustment is completed.
Repeat procedures 1) through 6) until La = Lb.
Repeat procedures 1) through 6) until La = Lb.
E. Height adjustment of original detection light
emitting unit
1) Execute SIM 41-3.
2) Open the original cover. Press the original detection light-emit-
ting unit gradually with your finger to check the height at which
OCSW display on the LCD is highlighted.
OCSW display on the LCD is highlighted.
3) Open the original detection light-emitting unit gradually to
check the height at which OCSW display turns to the normal
state.
state.
4) If the heights are out of the specified range in procedures 2)
and 3), adjust the height of the original detection light emitting
unit by shifting the adjustment screw.
unit by shifting the adjustment screw.
5) After completion of adjustment, press the original detection
light emitting unit fully downward with your finger and release
it. Check that the original detection light-emitting unit moves
up smoothly.
it. Check that the original detection light-emitting unit moves
up smoothly.
<Specification>
F. Original size detection photo sensor check
1) Execute SIM 41-1.
2) Put A3 (or WLT) paper on the table glass, and check that all
the sensor displays (except for OCSW) on the LCD are high-
lighted.
lighted.
3) Gradually move the unit to the left, and check that the high-
lighted sensor displays turn off one by one sequentially.
G. Original size detection photo sensor
adjustment
1) Execute SIM 41-2.
∗
At that time, check that the scanner mirror base is at the
home position.
home position.
2) Open the document cover. Select 1 without placing paper on
the table glass, and press START.
3) When COMPLETE is displayed on the LCD, press CUSTOM
SETTING to return to the initial screen.
4) Place A3 (or WLT) paper on the table glass, select 2 and
press START.
When COMPLETE is displayed, the adjustment is normally
completed.
When COMPLETE is displayed, the adjustment is normally
completed.
∗
If ERROR is displayed, the error PD sensor is displayed.
<Specification>
•If La < Lb, turn the rear frame mirror base drive pulley in
direction B.
(Do not move the mirror base drive pulley shaft.)
(Do not move the mirror base drive pulley shaft.)
•If La > Lb, turn the rear frame mirror base drive pulley in
direction A.
(Do not move the mirror base drive pulley shaft.)
(Do not move the mirror base drive pulley shaft.)
A
B
Front side
Rear side
Adjust screw
32±0.5mm
SIMULATION 41-3
PD SENSOR DATA DISPLAY.
OCSW
PD1[128]: 200 PD2[128]: 200
PD3[128]: 50 PD4[128]: 52
PD5[128]: 51 PD6[128]: 50
PD7[128]: 52
Specification Adjustment position
Original size
detection position
detection position
32±0.5mm
Height adjustment
screw
screw
SIM 41-3
Select 2 and press [START] key.
(Error)
(Error)
Press [CUSTOM SETTINGS]
key.
key.
Specification
Adjustment
Document size detection photo
sensor adjustment
sensor adjustment
COMPLETE
SIM 41-2
SIMULATION 41-1
PD SENSOR CHECK..
OCSW
PD1
PD2
PD3
PD4 PD5 PD6 PD7
SIMULATION 41-2
PD SENSOR ADJUSTMENT. SELECT1-2, AND PRESS START.
(PLEASE OPEN THE ORIGINAL COVER.)
1. NO ORIGINAL
2. A3 ORIGINAL
1
SIMULATION 41-2
Press [CUSTOM SETTINGS] key.
Select 1 and
press [START] key.
press [START] key.
PD SENSOR ADJUSTMENT.
NO ORIGINAL ··· COMPLETE (or "ERROR at
PD1 PD2
...")
A3 ORIGINAL ··· INCOMPLETE
SIMULATION 41-2
PD SENSOR ADJUSTMENT.
NO ORIGINAL ··· COMPLETE
A3 ORIGINAL ··· COMPLETE (or "ERROR at
PD1 PD2
...")
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 13
H. Image density adjustment
The image density adjustment is required for the following copy
quality mode by using the simulation.
quality mode by using the simulation.
There are two methods; the collective adjustment and the individ-
ual adjustment of the copy quality mode.
ual adjustment of the copy quality mode.
• Copy mode
• FAX mode
(1) Copy mode
a. Test chart setting
1) Place a test chart (UKOG-0162FCZZ) on the original table as
shown below.
2) Place several sheets of A3 (11 x 17) white paper
(Sharp’s specified paper) on the test chart at the rear refer-
ence.
ence.
Test chart comparison
b. Density adjustment procedure
<1> Collective adjustment of two or more copy quality modes
Normally this adjustment is performed with SIM 46-2. In this
method, two or more copy density adjustments in different modes
can be adjusted collectively.
method, two or more copy density adjustments in different modes
can be adjusted collectively.
1) Execute SIM 46-2.
(Binary value mode)
Copy quality mode Collective
Adjustment
Individual
adjustment
Binary
value
mode
value
mode
Auto mode
SIM46-2
Character mode
SIM46-9
Character/Photo mode
SIM46-10
Photo mode
SIM46-11
Adjustment
Individual
adjustment
Normal
mode
mode
Binary value
mode
mode
AUTO
SIM46-12
SIM46-13
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
Small text
mode
mode
Binary value
mode
mode
AUTO
SIM46-14
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
Half tone
mode
mode
AUTO
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
Fine mode
Binary value
mode
mode
AUTO
SIM46-15
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
Half tone
mode
mode
AUTO
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
Super fine
mode
mode
Binary value
mode
mode
AUTO
SIM46-16
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
Half tone
mode
mode
AUTO
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
600dpi
mode
mode
Binary value
mode
mode
AUTO
SIM46-45
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
Half tone
mode
mode
AUTO
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
EXP1.0
EXP2.0
EXP3.0
EXP4.0
EXP5.0
UKOG-
0162FCZZ
DENSITY No.
0162FCZZ
DENSITY No.
1
2
3
4
5
6
7
8
9
10 W
UKOG-
0089CSZZ
DENSITY No.
0089CSZZ
DENSITY No.
0.1
0.2
0.3
0.5 1.9
0
KODAK GRAY
SCALE
SCALE
1
2
3
4
19
A
SHARP
CORPORATION
MADE IN JAPAN
CORPORATION
MADE IN JAPAN
Quality mode
Linked simulation data
AE3.0 (AE)
CH3.0 (Character)
SIM46-9
MIX3.0 (Character/Photo)
SIM46-10
PH3.0 (Photo)
SIM46-11
UKOG-0162FCZZ
1
10
W
2
3
4
5
6
7
8
9
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 14
2) Press the COPY button to make a copy.
Check that the copy density is as shown in the table below.
If not, change the adjustment value.
<2> Individual adjustment of each copy quality mode
This adjustment is used when a different density level for different
copy quality mode is required. SIM 46-5 to -7 and SIM 46-9 to -11
are used.
copy quality mode is required. SIM 46-5 to -7 and SIM 46-9 to -11
are used.
1) Execute the simulation corresponding to the copy quality
mode to be adjusted.
2) Press the COPY button to make a copy
Check that the copy density is as shown in the table below. If not,
change the adjustment value.
change the adjustment value.
For the auto mode, there is only one adjustment value. For the
other modes, the adjustment value for each density level must be
adjusted.
other modes, the adjustment value for each density level must be
adjusted.
(2) Adjusting the print quality in fax mode
This adjustment is needed in the following situations:
• The CCD unit has been replaced.
• U2 trouble has occurred.
• The MFP control PWB has been replaced.
• The EEPROM on the MFP control PWB has been replaced.
• The scanner control PWB has been replaced.
• The EEPROM on the scanner control PWB has been replaced.
• One or more parts of the scanner (reading) section have been
replaced.
Select 2, and press [START] key.
Press [START] key,
or press [CUSTOM SETTINGS] key.
or press [CUSTOM SETTINGS] key.
SIMULATION 46-2
Select other then 0 - 2, and
press [START] key.
press [START] key.
Press [CUSTOM SETTINGS] key.
SIMULATION 46-2
EXP. LEVEL SETUP (2). INPUT VALUE 0-99, AND PRESS START.
3. AE 3.0
Press [START] key.
SIMULATION 46-2
EXP. LEVEL SETUP (2). NOW COPYING.
50
Press [CUSTOM SETTINGS] key,
or terminate copying.
or terminate copying.
SIMULATION 46-2
EXP. LEVEL SETUP (2). SELECT 1-5, AND PRESS START.
(FEED TRAY)
1. TRAY1 2. TRAY2 3. TRAY3 4. TRAY4
5. BPT
Press [START] key, or
press [CUSTOM SETTINGS] key.
press [CUSTOM SETTINGS] key.
1
Select 0, and
press [START] key.
press [START] key.
1
Select 1,
and press
[START] key.
and press
[START] key.
EXP. LEVEL SETUP (2). SELECT 0-6, AND PRESS START.
0. TRAY SELECT
1
1. COPY START
2. EXP LEVEL
1
3. AE 3.0
50
4. CH 3.0
50
5. MIX 3.0
50
6. PHOTO 3.0
50
SIMULATION 46-2
EXP. LEVEL SETUP (2). SELECT 3-6, AND PRESS START.
(EXP. LEVEL SELECT)
3. AE 3.0 4. CH 3.0
5. MIX 3.0 6. PHOTO 3.0
1
• Adjustment spec
If the copy density is too light, increase the adjustment value.
If the copy density is too dark, decrease the adjustment value.
Adjustment range: 30 - 170
Mode
EXP.
Chart
No.
Adjustment
level
Chart
No.
Adjustment
level
Character
3
3
Copied
2
Not copied
Character/
Photo
Photo
3
3
Copied
2
Not copied
Photo
3
3
Copied
2
Not copied
Auto
3
Copied
2
Not copied
Select 2, and press [START] key.
Press [START] key, or
press [CUSTOM SETTINGS] key.
press [CUSTOM SETTINGS] key.
SIMULATION 46-9
Select other than 0 - 2, and
press [START] key.
press [START] key.
Press
[CUSTOM SETTINGS] key.
[CUSTOM SETTINGS] key.
SIMULATION 46-9
EXP. LEVEL SETUP (CHAR.2). INPUT VALUE 0-99, AND PRESS
START.
3. 1.0
Press [START] key.
SIMULATION 46-9
EXP. LEVEL SETUP (CHAR.2). NOW COPYING.
50
Press [CUSTOM SETTINGS] key,
or terminate copying.
or terminate copying.
SIMULATION 46-9
EXP. LEVEL SETUP (CHAR.2). SELECT 1-5, AND PRESS START.
(FEED TRAY)
1. TRAY1 2. TRAY2 3. TRAY3 4. TRAY4
5. BPT
Press [START] key, or
press [CUSTOM SETTINGS] key.
press [CUSTOM SETTINGS] key.
1
Select 0, and
press [START] key.
press [START] key.
1
Select 1,
and press
[START] key.
and press
[START] key.
EXP. LEVEL SETUP (CHAR.2). SELECT 0-11, AND PRESS START.
0. TRAY SELECT
1
1. COPY START
2. EXP LEVEL
1
3. 1.0
50
4. 1.5
50
5. 2.0
50
6. 2.5
50
7. 3.0
50
8. 3.5
50
9. 4.0
50
10. 4.5
50
11. 5.0
50
SIMULATION 46-9
EXP. LEVEL SETUP (CHAR.2). SELECT 3-11, AND PRESS START.
(EXP. LEVEL SELECT)
3. 1.0 4. 1.5 5. 2.0
6. 2.5 7. 3.0 8. 3.5
9. 4.0 10. 4.5 11. 5.0
1
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