Sharp MX-3500N / MX-3501N / MX-4500N / MX-4501N (serv.man12) Service Manual ▷ View online
MX3501N ADJUSTMENTS 7 – 5
* The EEPROM on the scan control PWB has been replaced.
* When a U2 trouble occurs.
1)
* When a U2 trouble occurs.
1)
On the DSPF original tray, place such an original as illustrated
below.
below.
2)
Make a normal copy on A4 paper.
3)
Measure the lengths of the copied image and the original
image.
image.
4)
Determine the image magnification factor using the following
formula:
Image magnification factor (%) = Copy dimension/original
dimension x 100
Image magnification factor (%) = 99 / 100 x 100 = 99
If the image magnification factor is within the spec (100±0.8%),
no adjustment is required; otherwise, do the following steps.
formula:
Image magnification factor (%) = Copy dimension/original
dimension x 100
Image magnification factor (%) = 99 / 100 x 100 = 99
If the image magnification factor is within the spec (100±0.8%),
no adjustment is required; otherwise, do the following steps.
5)
Enter the simulation 48-1 mode.
1)
Select the adjustment item DSPF (SUB) with scroll key.
This adjustment items is intended to adjust the image magnifi-
cation in the sub-scanning direction in DSPF mode. (DSPF
(SUB))
This adjustment items is intended to adjust the image magnifi-
cation in the sub-scanning direction in DSPF mode. (DSPF
(SUB))
2)
Press [START] key.
3)
Enter the image magnification adjustment value with the 10-
key.
key.
4)
Select [START] key.
Pressing the [START] key starts copy operation as well as
applying the adjustment value.
Repeat the above adjustments until an acceptable result is
obtained.
Pressing the [START] key starts copy operation as well as
applying the adjustment value.
Repeat the above adjustments until an acceptable result is
obtained.
NOTE: After adjusting the image magnification in the sub-scanning
direction through Simulation 48-1, do the following steps if
making a copy at a different magnification factor fails to
produce a correctly scaled copy.
making a copy at a different magnification factor fails to
produce a correctly scaled copy.
1)
Enter the simulation 48-1 mode.
1)
Select the item corresponding to be adjusted with scroll key.
2)
Press [START] key.
3)
Enter the image magnification adjustment value with the 10-
key.
Make adjustments by changing the adjustment value for high
revolution mode if the copy magnification is not correct for
microcopies; or the adjustment value for low revolution mode if
the copy magnification is not correct for blowbacks.
key.
Make adjustments by changing the adjustment value for high
revolution mode if the copy magnification is not correct for
microcopies; or the adjustment value for low revolution mode if
the copy magnification is not correct for blowbacks.
4)
Press [START] key.
This applies the adjustment value.
This applies the adjustment value.
9. Scanned image off-center adjustment
(front surface mode)
For details of this adjustment, refer to "[6] ADJUSTMENTS" of the
copier Service Manual (00ZMX3500NS1E).
copier Service Manual (00ZMX3500NS1E).
10. Scanned image off-center adjustment
(back surface mode)
This adjustment is required in the following cases:
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The DSPF section has been disassembled.
* The DSPF unit has been replaced.
(Adjustment mode selection)
1)
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The DSPF section has been disassembled.
* The DSPF unit has been replaced.
(Adjustment mode selection)
1)
Enter the simulation 50-12 mode.
(UNIT: 0.1mm/STEP When the value is increased, the image is
shifted to the front side.)
shifted to the front side.)
A4 size
10mm
10mm
Paper pass direction
original
copy
10
50
100
150
200
10
50
100
150
200
CLOSE
0
A:
A㧦 50
B㧦 50
C㧦 50
D㧦 50
㧧
CCD(MAIN)
㧧
CCD(SUB)
㧧
SPF(MAIN)
㧧
SPF(SUB)
SIMULATION NO.48㧙01
MAGNIFICATION ADJUSTMENT
XX
㨇
1㨪99 㨉
OK
TEST
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
setting
setting
25 – 400%
100
(Off-center adjustment value)
3
PLATEN
OC mode adjustment
0 – 99
50
4
SPF SIDE1
DSPF front surface
adjustment
adjustment
5
SPF SIDE2
DSPF back surface
adjustment
adjustment
CLOSE
0
A:
A㧦 50
B㧦 50
C㧦 50
D㧦 50
㧧
MR(HI)
㧧
MR(MID)
㧧
MR(LO)
㧧
DSPF(HI))
SIMULATION NO.48㧙05
MOTOR SPEED ADJUSTMENT
XX
㨇
1㨪99 㨉
OK
TEST
0
A:
A㧦 50
B㧦 50
㧧
OC
㧧
SPF(SIDE1)
SIMULATION NO.50㧙12
ORIGINAL CENTER OFFSET SETUP
XX
㨇
1㨪 99 㨉
OK
TEST
CLOSE
C㧦 50
㧧
SPF(SIDE2)
MX3501N ADJUSTMENTS 7 – 6
2)
Using the scroll key, select the adjustment item DSPF SIDE1,
which is intended to adjust the off-center in DSPF back surface
mode.
which is intended to adjust the off-center in DSPF back surface
mode.
3)
Press [START] key.
(Scan off-center adjustment)
1)
1)
On the DSPF original tray, place such an original as illustrated
below.
below.
2)
Press [START] key.
Since the front side and back side images are copied onto sep-
arate sheets, check the off-center of the back side image.
If the off-center is 0
Since the front side and back side images are copied onto sep-
arate sheets, check the off-center of the back side image.
If the off-center is 0
±2.7 mm, no adjustment is required.
If the above requirement is not met, do the following steps.
3)
Enter the scanned image off-center position adjustment value
with the 10-key.
(The adjustment value should be changed in steps of 0.1mm.)
(When the adjustment is increased, the print image is shifted
to the front side.)
with the 10-key.
(The adjustment value should be changed in steps of 0.1mm.)
(When the adjustment is increased, the print image is shifted
to the front side.)
4)
Press [START] key.
Pressing the [OK]t key starts copy operation as well as apply-
ing the adjustment value.
Pressing the [OK]t key starts copy operation as well as apply-
ing the adjustment value.
5)
Check the off-center of the printed image.
Repeat the above adjustments until an acceptable result is
obtained.
obtained.
11. Original scan position adjustment
This adjustment is required in the following cases:
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The PF section has been disassembled.
* The DSPF unit has been replaced.
This adjustment is intended to adjust the scanner read position in
DSPF mode front face scan.
An incorrect adjustment would deviate the scanner stop position
from the required position, thus possibly causing a shadow of the
original table to appear at the leading edge of an image generated
by DSPF (front surface) mode scan.
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The PF section has been disassembled.
* The DSPF unit has been replaced.
This adjustment is intended to adjust the scanner read position in
DSPF mode front face scan.
An incorrect adjustment would deviate the scanner stop position
from the required position, thus possibly causing a shadow of the
original table to appear at the leading edge of an image generated
by DSPF (front surface) mode scan.
1)
Make a copy in DSPF (front surface) mode, and make sure
that the printed image at the leading edge of the copied image
is free from shadows.
that the printed image at the leading edge of the copied image
is free from shadows.
If the printed image at the leading edge of the copied image
contains a shadow of the original table, then do the following
steps.
contains a shadow of the original table, then do the following
steps.
2)
Enter the simulation 53-8 mode.
3)
Enter the adjustment value and press the [START] key.
Repeat the above adjustments until an acceptable result is
obtained.
obtained.
12. Copied image loss/void area
adjustment
This adjustment is required in the following cases:
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The PF section has been disassembled.
* The DSPF unit has been replaced.
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The PF section has been disassembled.
* The DSPF unit has been replaced.
original
copy
a
b
Image area
Papar lead edge
Shadow image of SPF
0
A:
A㧦 50
㧧
ADJUST VALUE
SIMULATION NO.53㧙08
SPF SCANNING POSITION ADJUSTMENT
50
㨇
1㨪 99 㨉
OK
TEST
CLOSE
0
A:
A㧦 50
㧧
ADJUST VALUE
SIMULATION NO.53㧙08
SPF SCANNING POSITION ADJUSTMENT
XX
㨇
1㨪 99 㨉
OK
TEST
CLOSE
Image loss (LIL)
LIL = 1.5 mm
LV
LV
= 3.5 mm
TV
= 3.5 mm
FV+RV= 7.0 mm
Papar lead edge
Papar tail edge
10
20
No Image
No Image
No Image
No Image
Void (TV)
Void (LV)
Void (FV)
Void (RV)
MX3501N ADJUSTMENTS 7 – 7
1)
Enter the simulation 50-6 mode.
(Leading edge image loss adjustment)
1)
1)
Set the adjustment values for leading edge image loss (LEAD
EDGE) for the front and back sides as follows:
(Standard setting)
5 LEAD EDGE: 15
8 LEAD EDGE: 15
* Set the adjustment value for "5 LEAD_EDGE" and
EDGE) for the front and back sides as follows:
(Standard setting)
5 LEAD EDGE: 15
8 LEAD EDGE: 15
* Set the adjustment value for "5 LEAD_EDGE" and
"8 LEAD_EDGE" to 15 by entering "15" into the (LEAD
EDGE) adjustment value field and then pressing the
[START] key.
EDGE) adjustment value field and then pressing the
[START] key.
2)
In SPF mode, make a duplex copy at 100% magnification, and
make sure that the leading edge image loss is 1.5 mm for both
the front and back sides. (Select duplex mode from the paper
selection mode as described in Simulation 50-6). (Enter "100"
into the (MAGNIFICATION) field, and then press the [START]
key).
make sure that the leading edge image loss is 1.5 mm for both
the front and back sides. (Select duplex mode from the paper
selection mode as described in Simulation 50-6). (Enter "100"
into the (MAGNIFICATION) field, and then press the [START]
key).
If an acceptable result is not obtained, do the following steps.
3)
Repeat the process of changing the (SIDE1 & SIDE2) adjust-
ment values and then pressing the [START] key until attaining
an acceptable level.
SIDE1: Adjustment value for the position at which to read the
leading edge of the original in DSPF front side mode.
SIDE2: Adjustment value for the position at which to read the
leading edge of the original in DSPF back side mode.
(The adjustment value should be changed in steps of 0.1 mm.)
(The timing in which to start reading the image should be
determined based on the timing in which detector SPPD4
detects the leading edge of the original.)
ment values and then pressing the [START] key until attaining
an acceptable level.
SIDE1: Adjustment value for the position at which to read the
leading edge of the original in DSPF front side mode.
SIDE2: Adjustment value for the position at which to read the
leading edge of the original in DSPF back side mode.
(The adjustment value should be changed in steps of 0.1 mm.)
(The timing in which to start reading the image should be
determined based on the timing in which detector SPPD4
detects the leading edge of the original.)
Repeat steps 2 to 3 until an acceptable result is obtained.
(Trailing edge image loss adjustment)
1)
(Trailing edge image loss adjustment)
1)
Select duplex mode from paper selection mode as described
in Simulation 50-6, enter "100" into the (MAGNIFICATION)
field, and then press the [START] key to make a duplex copy at
100% magnification in SPF mode, and make sure that the trail-
ing edge image loss is 1.5 mm for both front and back sides.
in Simulation 50-6, enter "100" into the (MAGNIFICATION)
field, and then press the [START] key to make a duplex copy at
100% magnification in SPF mode, and make sure that the trail-
ing edge image loss is 1.5 mm for both front and back sides.
If an acceptable result is not obtained, do the following steps.
2)
Repeat the process of changing the (TRAIL EDGE) adjust-
ment value and then pressing the [START] key until attaining
an acceptable level.
Repeat the above adjustments until an acceptable result is
obtained.
ment value and then pressing the [START] key until attaining
an acceptable level.
Repeat the above adjustments until an acceptable result is
obtained.
(Front/rear frame direction image loss adjustment)
Set the (FRONT/REAR) adjustment value to 20 by entering "20"
into the (FRONT/REAR) adjustment value field and then pressing
the P key.
Note that changing this adjustment value shifts the image position
in the front/rear frame direction.
Set the (FRONT/REAR) adjustment value to 20 by entering "20"
into the (FRONT/REAR) adjustment value field and then pressing
the P key.
Note that changing this adjustment value shifts the image position
in the front/rear frame direction.
13. Paper width sensor for the paper feed
tray adjustment
This adjustment is needed in the following situations:
* The paper feed tray section has been disassembled.
* The paper feed tray unit has been replaced.
* When a U2 trouble occurs.
* The scanner PWB has been replaced.
* The EEPROM on the scanner PWB has been replaced.
1)
* The paper feed tray section has been disassembled.
* The paper feed tray unit has been replaced.
* When a U2 trouble occurs.
* The scanner PWB has been replaced.
* The EEPROM on the scanner PWB has been replaced.
1)
Enter the simulation 53-6 mode.
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
setting
setting
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
0
A:
A㧦 50
B㧦 50
C㧦 20
D㧦 20
㧧
SIDE1
㧧
SIDE2
㧧
LEAD EDGE
㧧
FRONT_REAR
SIMULATION NO.50㧙06
LEAD EDGE ADJUSTMENT VALUE(SPF)
50
㨇
1㨪 99 㨉
OK
TEST
CLOSE
Papar lead edge
TIL = 1.5 mm
TV = 3.5 mm
TV = 3.5 mm
Image area
Void (TV)
Image loss (TIL)
No Image
Papar trail edge
TIL = 1.5 mm
TV = 3.5 mm
TV = 3.5 mm
Image area
Void (TV)
Image loss (TIL)
No Image
0
SIMULATION NO.53̆06
TEST
SPF TRAY ADJUSTMENT
CLOSE
EXECUTE
TRAYVOLMAX TRAY ADJUSTMENT.
PRESS [EXECUTE] TO START
MX3501N ADJUSTMENTS 7 – 8
2)
Open the DSPF paper feed guide to the maximum width posi-
tion.
tion.
3)
Press [EXECUTE] key.
The maximum width detection level is recognized.
The maximum width detection level is recognized.
4)
Open the DSPF paper feed guide to the width for the A4R size.
5)
Press [EXECUTE] key.
The A4R width detection level is recognized.
The A4R width detection level is recognized.
6)
Open the DSPF paper feed guide to the width for the A5R size.
7)
Press [EXECUTE] key.
The A5R width detection level is recognized.
The A5R width detection level is recognized.
8)
Open the DSPF paper feed guide to the minimum width posi-
tion.
tion.
9)
Press [EXECUTE] key.
The minimum width detection level is recognized.
The minimum width detection level is recognized.
* When each of the above operations has been completed, the
"COMPLETE" message appears; when any of the operations
has failed, the "ERROR" message appears.
has failed, the "ERROR" message appears.
14. Auto void adjustment (Service
installation adjustment)
This adjustment is required in the following cases:
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The PF section has been disassembled.
* The DSPF unit has been replaced.
This adjustment is used to adjust the DSPF (front/back) document
lead edge, off-center, sub operation magnification ratio.
* The MFP control PWB has been replaced.
* The EEPROM on the MFP control PWB has been replaced.
* The scan control PWB has been replaced.
* The EEPROM on the scan control PWB has been replaced.
* The scanner (reading) section has been disassembled.
* The scanner (reading) unit has been replaced.
* When a U2 trouble occurs.
* The PF section has been disassembled.
* The DSPF unit has been replaced.
This adjustment is used to adjust the DSPF (front/back) document
lead edge, off-center, sub operation magnification ratio.
1)
Enter the simulation mode 50-28 to select [SPF ADJ].
2)
Select an adjustment item (front, back, both).
3)
The display shows the tray select screen for printing the SPF
adjustment pattern. Select a tray for SPF adjustment printing.
adjustment pattern. Select a tray for SPF adjustment printing.
4)
Self-print of the SPF adjustment pattern is performed.
5)
After completion of printing, the SPF adjustment start screen is
displayed.
displayed.
<List of adjustment items>
Menu display item
Content
SIDE1
SPF adjustment front surface
SIDE2
SPF adjustment back surface
ALL
SPF adjustment front/back surface
SIMULATION NO.50̆28
TEST
AUTO IMAGE POSITION ADJUSTMENT㧦SERVICE
OC ADJ
BK-MAG ADJ
SPF ADJ
SETUP/PRINT ADJ
RESULT
DATA
1/1
0
CLOSE
SIMULATION NO.50̆28
TEST
AUTO IMAGE POSITION ADJUSTMENT㧦SERVICE
SIDE1
SIDE2
ALL
1/1
0
CLOSE
0
SIMULATION NO.50̆28
TEST
AUTO IMAGE POSITION ADJUSTMENT㧦SERVICE
EXECUTE
1/1
MFT
CS1
CS2
CLOSE
0
SIMULATION NO.50̆28
TEST
A AUTO IMAGE POSITION ADJUSTMENT㧦SERVICE
CLOSE
EXECUTE
NOW EXECUTING…
0
SIMULATION NO.50̆28
TEST
AUTO IMAGE POSITION ADJUSTMENT㧦SERVICE
CLOSE
EXECUTE
PLEASE SET THE PRINTER PATTERN PAPER ON THE SPF
THEN PRESS 㨇EXECUTE㨉 TO START
REPRINT
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