Sharp AR-M351U / AR-M451U (serv.man16) Service Manual ▷ View online
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
AR-M351U/M451U, AR-M355U/M455U ADJUSTMENTS 8 - 10
<Display values 1>
<Set values 2>
∗
With the above + 10, the SPF enters the duplex mode (DD),
making duplex copy.
making duplex copy.
<Set values 3>
<8> Original off-center 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
• SPF scan lead edge adjustment
Items which must be executed after completion of this adjust-
ment.
ment.
• Nothing special
1) Set an original on the original table.
2) Execute SIM 50-12.
3) Select the paper feed tray and the magnification ratio.
4) After entering the adjustment value, pres START key, and
printing is started.
5) Check the off-center (distance from the paper lead edge) of
the printed copy. Repeat procedure 2 until the printed copy
satisfies the specifications.
satisfies the specifications.
• 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.
<Specifications>
3. Scanner section
A. OC scan distortion adjustment
(MB-B rail height adjustment)
• This adjustment requires a high-level preciseness.
It is easier to perform the scanner unit distortion adjustment pre-
viously described.
viously described.
Before performing this adjustment, the following adjustment must
have been completed.
have been completed.
• LSU right angle adjustment
1) Make a test chart as shown below. (Print 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) Remove the front cabinet in front of the scanner, and check
that installing position of the MB rail.
5) Loosen the screw at the right of the MB rail to adjust.
<Specifications>
Normal display
NOW COPYING
ERROR display
Door open
DOOR OPEN.
Jam
JAM
Paper empty
PAPER EMPTY.
1
TRAY1
2
TRAY2
3
TRAY3
4
TRAY4
5
Manual feed
Set range
25 - 200%
Adjustment position
Measurem
ent
reference
Specification
Set value
Default
Range
Original
off-center
SIM50-12
off-center
SIM50-12
PLATEN
OC mode
Copy
output
center line
output
center line
As shone in
the table
below.
the table
below.
50
0 – 99 Set value
1: 0.1mm
shift
shift
SPF
SIDE1
SIDE1
SPF front
surface
adjustment
surface
adjustment
SPF
SIDE2
SIDE2
SPF back
surface
adjustment
surface
adjustment
a
b
Specification ± 1.5mm
Print lead edge
2
SIMULATION 50-12
ORIGINAL OFF-CENTER ADJUSTMENT. SELECT 0-9, AND PRESS
START.
0.TRAY SELECT
1
1.COPY START
2.MAGNIFICATION
100
(ADJUSTMENT DATA)
3.PLATEN
50
4.SPF SIDE1
50
5.SPF SIDE2
50
Machine (OC mode)
Single
±1.5mm
Duplex
±1.7mm
Overall (DSPF)
Single S - S
±2.8mm
Single D - S
±3.5mm
Duplex S - D
±3.0mm
Duplex D - D
±3.5mm
Measurement
point
Specification
Set value
OC scan
distortion
adjustment
distortion
adjustment
Angle
θ
in the
above figure
θ
= 90°±0.13° 1 scale = about
0.25°shift in
θ
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