Sharp AR-M351U / AR-M451U (serv.man16) Service Manual ▷ View online
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 6
<Specification>
B. Adjustment on the scanner side
<1> OC scan distortion adjustment
Items which must have been completed before this adjust-
ment.
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
Items which must be executed after completion of this adjust-
ment.
ment.
• OC scan off-center
• OC scan lead edge adjustment
1) Make a test chart as shown below. (Make a self-print pattern
71.)
2) Make a copy from the table glass, and check it.
At that time, set the test chart correctly. If it is set in a distorted
position, the adjustment cannot be made correctly.
position, the adjustment cannot be made correctly.
3) If the output value is not in the specified range, perform the fol-
lowing adjustment.
4) Adjust the distortion.
Use a level gauge to check that the scanner is installed hori-
zontally.
zontally.
Make a copy and check it. If there is any distortion as shown in
Fig. 1 or Fig. 2, loosen the scanner fixing screw (M4 x 8) and
the cam A fixing screw (M3 x 12) and adjust.
Fig. 1 or Fig. 2, loosen the scanner fixing screw (M4 x 8) and
the cam A fixing screw (M3 x 12) and adjust.
• In the case of Fig. 1
Shift cam A in the direction A by the difference in the copy image.
For one scale (one groove), shift by 0.5mm.
After shifting, tighten the fixing screw (M3 x 12) of cam A and
make a copy again, and check the copy again to insure that there
is no distortion.
make a copy again, and check the copy again to insure that there
is no distortion.
• In the case of Fig. 2
Shift cam A in the direction B by the difference in the copy image.
For one scale (one groove), shift by 0.5mm.
After shifting, tighten the fixing screw (M3 x 12) of cam A and
make a copy again, and check the copy again to insure that there
is no distortion.
make a copy again, and check the copy again to insure that there
is no distortion.
After adjustment, tighten the fixing screw (M3 x 12) and the scan-
ner fixing screw (M4 x 8).
ner fixing screw (M4 x 8).
∗
If the above adjustment does not fix the problem, perform the
MB rail adjustment.
MB rail adjustment.
∗
After the OC distortion adjustment, perform SIM53-8 SPF scan-
ning position automatic adjustment.
ning position automatic adjustment.
<2> SPF height adjustment
Items which must have been completed before this adjust-
ment.
ment.
• Nothing special
Items which must be executed after completion of this adjust-
ment.
ment.
• Nothing special
1) Close the (D)SPF.
2) Check to confirm that the dove and the reference plate in the
figure below are in contact with the table glass (point a) and
the side guide (point b). (Place copy paper under the dove and
pull it out.) If they are not in contact, adjust with the set screw.
the side guide (point b). (Place copy paper under the dove and
pull it out.) If they are not in contact, adjust with the set screw.
Set position
Specification
Set
value
Lead edge void
adjustment
“LEAD EDGE
VOID (DENA)”
adjustment
“LEAD EDGE
VOID (DENA)”
Output pattern
“71” print void
quantity A
“71” print void
quantity A
A = 4.0mm or
less
(A and B total:
8.0mm or less)
less
(A and B total:
8.0mm or less)
Shift of
0.1mm
for set
value 1.
0.1mm
for set
value 1.
Rear edge void
adjustment
“TAIL EDGE VOID
(DENB)”
adjustment
“TAIL EDGE VOID
(DENB)”
Output pattern
“71” print void
quantity B
“71” print void
quantity B
B = 4.0mm or
less
(A and B total:
8.0mm or less)
less
(A and B total:
8.0mm or less)
Side edge void
adjustment
“FRONT/REAR”
adjustment
“FRONT/REAR”
Output pattern
“71” print void
quantity C + D
“71” print void
quantity C + D
C and D total:
8.0mm or less
8.0mm or less
2
SIMULATION 50-1
LEAD EDGE ADJUSTMENT. SELECT 0-9, AND PRESS START.
0.TRAY SELECT
1
1.COPY START
2.MAGNIFICATION
100
(ADJUSTMENT DATA) 3.RRCA
50
4.RRCB
50
10.SIDE2 ADJ.
50
(IMAGE LOSS SETTING) 5.LEAD
15
6.SIDE
20
(VOID SETTING) 7.LEAD_EDGE(DENA)
50
8.TRAIL_EDGE(DENB)
30
9.FRONT/REAR
30
Print
lead edge
lead edge
Fixing screw
(M4 x 8)
(M4 x 8)
A
B
[Fig. 1]
[Fig. 2]
First copy image
First copy image
Image
Image
Paper
Paper
Difference
Difference
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 7
<Specification>
<3> SPF scan distortion adjustment
Items which must have been completed before this adjust-
ment.
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
• OC scan distortion adjustment
• SPF height adjustment
Items which must be executed after completion of this adjust-
ment.
ment.
• SPF off-center
• SPF lead edge adjustment
• Front/rear and left/right void amount setting
1) Make a test chart as shown below. (Print a self-print pattern
71.)
2) Make a copy with DSPF.
3) Check that it is in the specified range.
4) Execute SIM51-2 to check the SPF set value.
Change the set value of the SPF resist amount to the following
value.
value.
5) Though the SPF resist amount is the above value, if there is
any distortion in SPF scan, adjust the SPF installing position in
the following procedures.
the following procedures.
6) Loosen the nut which is fixing the adjustment set screw of the
hinge R, and adjust the adjustment set screw.
7) Make a copy again, and check again that the value is in the
specified range.
8) Tighten the nut to fix the adjustment screw.
<Specification>
∗
After the SPF distortion adjustment, perform SIM53-8 SPF
scanning position automatic adjustment.
scanning position automatic adjustment.
<4> OC scan magnification ratio adjustment
Items which must have been completed before this adjust-
ment.
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
• OC scan distortion adjustment
Items which must be executed after completion of this adjust-
ment.
ment.
• OC scan lead edge adjustment
• Original off-center adjustment
1) Place a print of self-print pattern (A3 or WLT) 70 or a scale on
the table glass.
2) Close the original cover, and make a copy.
3) Check that the value is within the specification.
4) If the value is not within the specified range, execute SIM48-1
(item 3, 4).
5) Make a copy again and check again that the value is within the
specification.
Specification
Adjustment
position
Distance between
dove (Reference
plate) and table
glass
dove (Reference
plate) and table
glass
3-point contact
(Left front/Left rear/Right
front when viewed from
the front)
(Left front/Left rear/Right
front when viewed from
the front)
Hinge
adjustment set
screw
adjustment set
screw
a
b
a
b
a
b
7
SPF (HIGH)
60
8
SPF (LOW)
75
Specification
Adjustment position
Skew feed
Within ±3mm
Hinge R adjustment screw
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
a
b
a
b
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 8
<Specification>
<5> SPF scan magnification ratio
Items which must have been completed before this adjust-
ment.
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
• OC scan distortion adjustment
• SPF scan distortion adjustment
• OC scan magnification ratio
• SPF height adjustment
Items which must be executed after completion of this adjust-
ment.
ment.
• SPF scan lead edge adjustment
• Original off-center adjustment
1) Set a chart of print pattern 70 on SPF/DSPF.
2) Make a copy. (In the case of DSPF back copy, make a single
copy in the duplex mode.)
3) Check that the output paper satisfies the specifications.
4) If the value is not within the specified range, execute SIM48-1
(item 5, 6).
5) Make a copy again, and check that the output paper satisfies
the specifications.
<Specifications>
∗
The SPF main scan direction magnification ratio is common with
OC.
OC.
Specification
Adjustment
position
Adjustment
value
Main scan direction
magnification ratio
CCD (MAIN)
magnification ratio
CCD (MAIN)
±0.5%
SIM48-1
(3, 4)
(3, 4)
Set value 1:
0.1% change
0.1% change
Sub scan direction
magnification ratio
CCD (SUB)
magnification ratio
CCD (SUB)
2
SIMULATION 48-1
MAGNIFICATION ADJUSTMENT. SELECT 0-7, AND PRESS START.
0.TRAY SELECT
1
1.PRINT START
2.MAGNIFICATION
100
3.CCD(MAIN)
50
4.CCD(SUB)
50
5.SPF(MAIN)
50
6.SPF(SUB)
50
7.CIS(MAIN)
50
Select 2, and
press [START] key.
press [START] key.
Press [START] key, or
press [CUSTOM SETTINGS] key.
press [CUSTOM SETTINGS] key.
Specifications
Adjustment
position
Adjustment
value
SPF sub scan direction
magnification ratio
SPF (SUB)
magnification ratio
SPF (SUB)
±0.5%
SIM 48-1
(5, 6)
(5, 6)
Set value 1:
0.1% change
0.1% change
DSPF main scan
(back) direction
magnification ratio
CIS (MAIN)
(back) direction
magnification ratio
CIS (MAIN)
50
1
2
Select other than 0 - 2,
and press [START] key.
and press [START] key.
Press [CUSTOM SETTINGS] key.
Press [START] key.
Press [CUSTOM SETTINGS] key,
or terminate copying.
or terminate copying.
Press [START] key, or
press [CUSTOM SETTINGS] key.
press [CUSTOM SETTINGS] key.
SIMULATION 48-1
MAGNIFICATION ADJUSTMENT. SELECT 0-7, AND PRESS START.
0.TRAY SELECT
1
1.PRINT START
2.MAGNIFICATION
100
3.CCD(MAIN)
50
4.CCD(SUB)
50
5.SPF(MAIN)
50
6.SPF(SUB)
50
7.CIS(MAIN)
50
SIMULATION 48-1
MAGNIFICATION ADJUSTMENT. INPUT VALUE 0-99, AND PRESS
START.
4.CCD(SUB)
SIMULATION 48-1
MAGNIFICATION ADJUSTMENT. NOW COPYING.
SIMULATION 48-1
MAGNIFICATION ADJUSTMENT. SELECT 1-15, AND PRESS START.
(FEED TRAY)
1.TRAY1 2.TRAY2 3.TRAY3 4.TRAY4
5.BPT 6.LCC
(ABOVE+10: DUPLEX MODE)
Select 1, and
press [START] key.
press [START] key.
Select 0, and press [START] key.
100
SIMULATION 48-1
MAGNIFICATION ADJUSTMENT.
(MAGNIFICATION)
INPUT 25-400(%)
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 9
<6> OC scan lead edge adjustment
Items which must have been completed before this adjust-
ment.
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
• OC scan distortion adjustment
• SPF scan distortion adjustment
• OC scan magnification ratio adjustment
Items which must be executed after completion of this adjust-
ment.
ment.
• SPF scan lead edge adjustment
• Original off-center adjustment
1) Set an original on the original table.
2) Enter SIM 50-1.
3) Make a copy.
4) Select the number to be set on the right of the LCD, and per-
form the adjustment of each item.
5) Select "4: RRC-B" so that the distance between the paper lead
edge and the copy image lead edge is within 4.0mm. Change
the value with 10-key and perform the copy adjustment.
the value with 10-key and perform the copy adjustment.
6) Select "5: DEN-B" so that the white spot in the latter half of
copy (rear edge void) is within 4.0mm. Change the value with
10-key and perform the copy adjustment.
(The rear void adjustment is changed by the step of 0.1mm.)
10-key and perform the copy adjustment.
(The rear void adjustment is changed by the step of 0.1mm.)
• When the rear edge void is too small, increase the value.
• When the rear edge void is too great, decrease the value.
7) Select "3: RRC-A," change the value with 10-key, and adjust
the document scan start position.
8) Press [CA] key to cancel the simulation.
<Specification>
<7> SPF scan lead edge adjustment
Items which must have been completed before this adjust-
ment.
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
• SPF scan distortion adjustment
• SPF scan lead edge adjustment
• SPF magnification ratio adjustment
Items which must be executed after completion of this adjust-
ment.
ment.
• SPF/DSPF off-center adjustment
1) Make a copy of a chart which indicates the image loss amount
of each side with SPF/DSPF.
2) Execute SIM50-6 and change the values.
<Set values 1>
Item
Content
Specification
Set
range
Default
(Lead edge adjustment value)
3 RRCA
Document scan
start position
start position
4.0mm or
less
less
0 - 99
50
Set value
1: 0.1mm
shift
1: 0.1mm
shift
4 RRCB
Resist roller
clutch ON timing
adjustment value
clutch ON timing
adjustment value
4.0mm or
less
less
10 SIDE2 ADJ.
Correction value
for RRCB when
refereeing from
ADU
for RRCB when
refereeing from
ADU
1 - 99
50
(Image loss set value)
5 LEAD
Lead edge image
loss set value
loss set value
0 - 99
15
Set value
1: 0.1mm
shift
1: 0.1mm
shift
6 SIDE
Side image loss
set value
set value
20
(Void set value)
7 LEAD_EDGE
(DENA)
Lead edge void
set value
set value
Total 8mm
or less
or less
0 - 99
35
Set value
1: 0.1mm
shift
1: 0.1mm
shift
8 TRAIL_EDGE
(DENB)
Rear edge void
adjustment value
adjustment value
Total 8mm
or less
or less
9 FRONT/
REAR
Front/Rear void
adjustment value
adjustment value
Total 8mm
or less
or less
32
2
SIMULATION 50-1
LEAD EDGE ADJUSTMENT. SELECT 0-9, AND PRESS START.
0.TRAY SELECT
1
1.COPY START
2.MAGNIFICATION
100
(ADJUSTMENT DATA) 3.RRCA
50
4.RRCB
50
10.SIDE2 ADJ.
50
(IMAGE LOSS SETTING) 5.LEAD
15
6.SIDE
20
(VOID SETTING) 7.LEAD_EDGE(DENA)
35
8.TRAIL_EDGE(DENB)
35
9.FRONT/REAR
32
Item
Set
range
Default
0
TRAY SELECT
Paper feed tray
selection
selection
1 - 6
–
1
COPY START
Copy START (Default)
–
–
2
MAGNIFICATION Print magnification ratio
25 -
200%
–
(Lead edge adjustment value)
3
SIDE1
Front surface document
scan start position
adjustment value
scan start position
adjustment value
0 - 99
50
4
SIDE2
Back surface document
scan start position
adjustment value
scan start position
adjustment value
(Image loss set value: SIDE 1)
5
LEAD_EDGE
Front surface lead edge
image loss set value
image loss set value
0 - 99
15
6
FRONT_REAR
Front surface side edge
image loss set value
image loss set value
20
7
TRAIL_EDGE
Front surface rear edge
image loss set value
image loss set value
0 - 20
0
(Image loss set value: SIDE 2)
8
LEAD_EDGE
Back surface lead edge
image loss set value
image loss set value
0 - 99
15
9
FRONT/REAR
Back surface side edge
image loss set value
image loss set value
20
10 TRAIL_EDGE
Back surface rear edge
image loss set value
image loss set value
0 - 20
0
*: For output, select the right side tray.
<Document>
Document set reference
Output result
Rear edge void
Lead edge void
Adjust
with
RRCB.
with
RRCB.
Adjust
with
RRCA.
with
RRCA.
Image loss
(SIDE)
(SIDE)
FR void
Image loss
(LEAD)
Paper transport direction
2
SIMULATION 50-6
LEAD EDGE ADJUSTMENT(SPF). SELECT 0-10, AND PRESS
START.
0.TRAY SELECT
1
1.COPY START
2.MAGNIFICATION
100
(ADJUSTMENT DATA)3.SIDE1
50
4.SIDE2
50
(IMAGE LOSS SETTING)
SIDE1: 5.LEAD_EDGE
15
6.FRONT/REAR
20
7.TRAIL_EDGE
0
SIDE2: 8.LEAD_EDGE
15
9.FRONT/REAR
20
10.TRAIL_EDGE
0
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