Sharp DX-C310 / DX-C311 / DX-C400 / DX-C401 (serv.man5) Service Manual ▷ View online
DX-C401 ADJUSTMENTS 4 – 21
2)
Make a duplex copy at the normal ratio on A4 paper.
3)
Measure the images on the copy paper and the original
images.
images.
4)
Obtain the image magnification ratio according to the following
formula:
Image magnification ratio = Original size / Original size x 100
(%)
Image magnification ratio = 99 / 100 x 100 = 99 (%)
If the image magnification ratio is within the specified range
(100
formula:
Image magnification ratio = Original size / Original size x 100
(%)
Image magnification ratio = 99 / 100 x 100 = 99 (%)
If the image magnification ratio is within the specified range
(100
1.5%), there is no need to perform the adjustment.
If it is not within the specified range, perform the following pro-
cedures.
cedures.
5)
Enter the SIM48-1 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
6)
Select an adjustment item of SPF (MAIN)/SPFB (MAIN) with
the scroll key.
SPF (SUB): Sub scanning direction image magnification ratio
(Front surface)
SPFB (SUB): Sub scanning direction image magnification ratio
(Back surface)
the scroll key.
SPF (SUB): Sub scanning direction image magnification ratio
(Front surface)
SPFB (SUB): Sub scanning direction image magnification ratio
(Back surface)
7)
Enter an image magnification ratio adjustment value with 10-
key, and press [OK] key. (For the 4.3 Inch LCD model, press
the OSA shortcut key.)
When the adjustment value is increased, the image magnifica-
tion ratio is increased.
When the adjustment value is changed by 1, the image magni-
fication ratio is changed by 0.01%.
key, and press [OK] key. (For the 4.3 Inch LCD model, press
the OSA shortcut key.)
When the adjustment value is increased, the image magnifica-
tion ratio is increased.
When the adjustment value is changed by 1, the image magni-
fication ratio is changed by 0.01%.
Repeat the procedures of 2) - 7) until a satisfactory result is
obtained.
obtained.
ADJ 10
Scan image off-center
adjustment
adjustment
This adjustment is needed in the following situations:
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When the RSPF section is disassembled.
* When the RSPF unit is installed.
* When the RSPF unit is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When the RSPF section is disassembled.
* When the RSPF unit is installed.
* When the RSPF unit is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
10-A
Scan image off-center adjustment
(Document table mode)
(Document table mode)
1)
Make an adjustment chart. (Draw a line at the center in parallel
with the paper transport direction.)
with the paper transport direction.)
original
10
50
100
150
200
250
copy
10
50
100
150
200
250
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$˖
˷̚˹
0$*1,),&$7,21$'-8670(17
˖&&'0$,1
$˖
˖&&'68%
%˖
˖63)0$,1
&˖
˖63)68%
'˖
7(67
Item
Display
Content
Setting
range
Default
value
C
SPF (MAIN)
RSPF document front
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
D
SPF (SUB)
RSPF document front
surface magnification ratio
adjustment (Sub scan)
surface magnification ratio
adjustment (Sub scan)
1 - 99
50
E
SPFB (MAIN)
RSPF document back
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
F
SPFB (SUB)
RSPF document back
surface magnification ratio
adjustment (Sub scan)
surface magnification ratio
adjustment (Sub scan)
1 - 99
50
A
B
A = B
DX-C401 ADJUSTMENTS 4 – 22
2)
Make a copy of the adjustment chart in the document table
mode.
mode.
3)
Check the copy image center position.
If A’ - B’ =
If A’ - B’ =
4.0mm, the adjustment is not required.
If the above condition is not satisfied, perform the following
procedures.
procedures.
4)
Enter the simulation 50-12 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
5)
Select the adjustment mode OC.
6)
Enter the adjustment value with 10-key, and press [OK] key.
(For the 4.3 Inch LCD model, press the OSA shortcut key.)
When the set value is increased, the main scanning print posi-
tion is shifted to the front side by 0.1mm.
(For the 4.3 Inch LCD model, press the OSA shortcut key.)
When the set value is increased, the main scanning print posi-
tion is shifted to the front side by 0.1mm.
7)
Make a copy, and check the position of the copy image center.
Change the adjustment value and perform procedures 5) - 6)
until the above condition is satisfied.
Change the adjustment value and perform procedures 5) - 6)
until the above condition is satisfied.
10-B
Scan image off-center adjustment
(RSPF mode)
(RSPF mode)
NOTE: To execute this adjustment, the paper off-center must have
been adjusted properly.
1)
Make an adjustment chart. (Draw a line at the center of both
surfaces in parallel with the paper transport direction.)
surfaces in parallel with the paper transport direction.)
2)
Set the adjustment chart on the RSPF, and make a copy in the
duplex copy mode.
duplex copy mode.
3)
Check the copy image center position.
(Single)
(Single)
If A’ - B’ =
5.0mm, the adjustment is not required.
(Duplex) If A’ - B’ =
5.4mm, the adjustment is not required.
If the above condition is not satisfied, perform the following
procedures.
procedures.
A’ - B’ = 1.0mm
(100%)
A’
B’
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$˖
˷̚˹
25,*,1$/&(17(52))6(76(783
˖2&
$˖
˖63)6,'(
%˖
˖63)6,'(
&˖
7(67
A
B
A = B
Front surface
A
B
A = B
Back surface
A’ - B’ = 1.0mm
(100%)
A’
B’
DX-C401 ADJUSTMENTS 4 – 23
4)
Enter the simulation 50-12 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
5)
Select the adjustment mode.
6)
Enter the adjustment value with 10-key, and press [OK] key.
(For the 4.3 Inch LCD model, press the OSA shortcut key.)
When the set value is increased, the main scanning print posi-
tion is shifted to the front side by 0.1mm.
(For the 4.3 Inch LCD model, press the OSA shortcut key.)
When the set value is increased, the main scanning print posi-
tion is shifted to the front side by 0.1mm.
7)
Make a copy, and check the position of the copy image center.
Change the adjustment value and perform procedures 4) - 6)
until the above condition is satisfied.
Change the adjustment value and perform procedures 4) - 6)
until the above condition is satisfied.
ADJ 11
Print area (Void area)
adjustment (Print engine
section)
adjustment (Print engine
section)
This adjustment is needed in the following situations:
* When the LSU is replaced or removed.
* When a paper tray is replaced.
* When the paper tray section is disassembled.
* When the manual feed tray is replaced.
* When the manual feed tray is disassembled.
* When the switchback section is disassembled.
* When the regist roller section is disassembled.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* When the LSU is replaced or removed.
* When a paper tray is replaced.
* When the paper tray section is disassembled.
* When the manual feed tray is replaced.
* When the manual feed tray is disassembled.
* When the switchback section is disassembled.
* When the regist roller section is disassembled.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
NOTE: Before execution of this adjustment, be sure to execute
ADJ 5 Print image magnification ratio adjustment (BK)
(Main scanning direction) (Print engine section) in
advance.
(Main scanning direction) (Print engine section) in
advance.
1)
Enter SIM50-10 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
2)
Set A4 (11" x 8.5") paper in the paper feed tray of the adjust-
ment target.
ment target.
3)
Select the paper feed tray of the adjustment target.
4)
Press [EXECUTE] key.
The adjustment pattern is printed.
The adjustment pattern is printed.
5)
Check the adjustment pattern to confirm that the items below
are in the range of the standard values.
are in the range of the standard values.
If the above condition is not satisfied, or if it is set to a desired
condition, execute the simulation 50-1.
(Note) Feed paper from all the paper feed trays to confirm.
condition, execute the simulation 50-1.
(Note) Feed paper from all the paper feed trays to confirm.
Item
Display
Content
Setting
range
Default
value
A
OC
Document table image off-
center adjustment
center adjustment
1 - 99
50
B
SPF(SIDE1)
SPF front surface image off-
center adjustment
center adjustment
1 - 99
50
C
SPF(SIDE2)
SPF back surface image off-
center adjustment
center adjustment
1 - 99
50
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$˖
˷̚˹
25,*,1$/&(17(52))6(76(783
˖2&
$˖
˖63)6,'(
%˖
˖63)6,'(
&˖
7(67
Content
Standard adjustment value
X
Lead edge void area
3.0
1.0mm
Y
Rear edge void area
2.0 - 5.0mm
Z1/Z2
FRONT/REAR void area
3.0
2.0mm
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$˖
˷̚˹
3$3(5&(17(52))6(76(783
˖%.0$*
$˖
˖0$,10)7
%˖
˖0$,1&6
&˖
˖0$,1&6
'˖
7(67
(;(&87(
3.0 2.0mm
Z1
3.0 1.0mm
X
3.0 2.0mm
Z2
2.0 5.0mm
Y
DX-C401 ADJUSTMENTS 4 – 24
6)
Go through the modes specified in Simulation 50-1.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
7)
Select the adjustment item DEN A, DEN B, FRONT/REAR with
the scroll key, and enter the adjustment value and press [OK]
key. (For the 4.3 Inch LCD model, press the OSA shortcut
key.)
the scroll key, and enter the adjustment value and press [OK]
key. (For the 4.3 Inch LCD model, press the OSA shortcut
key.)
When the adjustment value is increased, the void area is
increased. When the adjustment value is decreased, the void
area is decreased.
When the adjustment value is changed by 1, the void area is
changed by 0.1mm.
increased. When the adjustment value is decreased, the void
area is decreased.
When the adjustment value is changed by 1, the void area is
changed by 0.1mm.
NOTE: The adjustment value and the actual void area are related
as follows:
Adjustment value/10 = Actual void area
Adjustment value/10 = Actual void area
NOTE: When the amount of the rear edge void is different between
each paper feed tray, change the adjustment value of item
M, N, O, P, Q, R (DENB-XXX) in SIM50-1 and adjust.
The adjustment item I (DENB) have a effect on the paper of
all paper feed tray.
Adjustment value of item M, N, O, P, Q, R (DENB-XXX) fine
adjusts to adjustment item I (DENB) for each paper tray.
M, N, O, P, Q, R (DENB-XXX) in SIM50-1 and adjust.
The adjustment item I (DENB) have a effect on the paper of
all paper feed tray.
Adjustment value of item M, N, O, P, Q, R (DENB-XXX) fine
adjusts to adjustment item I (DENB) for each paper tray.
After execution of the above, perform procedures 1) - 5) to check
that the void area is within the specified range.
Though the lead edge void area adjustment value is proper, if the
lead edge void area is not within the specified range, change the
adjustment value of RRCB-CS1, RRCB-DSK, RRCB-MFT, RRCB-
ADUB (RRCB-XXX) of SIM 50-1.
Repeat the above procedures until a satisfactory result is obtained.
that the void area is within the specified range.
Though the lead edge void area adjustment value is proper, if the
lead edge void area is not within the specified range, change the
adjustment value of RRCB-CS1, RRCB-DSK, RRCB-MFT, RRCB-
ADUB (RRCB-XXX) of SIM 50-1.
Repeat the above procedures until a satisfactory result is obtained.
ADJ 12
Copy image position, image
loss adjustment
loss adjustment
12-A
Copy image position, image loss
adjustment (Document table mode)
adjustment (Document table mode)
This adjustment is needed in the following situations:
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When the LSU is replaced or removed.
* When the regist roller section is disassembled.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* The scanner control PWB has been replaced.
* The EEPROM on the scanner control PWB has been replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When the LSU is replaced or removed.
* When the regist roller section is disassembled.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
* The scanner control PWB has been replaced.
* The EEPROM on the scanner control PWB has been replaced.
NOTE: Before executing this adjustment, be sure to confirm that
the ADJ 11 Print area (Void area) adjustment (Print engine
section) has been completed normally.
section) has been completed normally.
Display/Item
Content
Setting
range
De-
fault
A
Lead
edge
adjust-
ment
value
edge
adjust-
ment
value
RRCA
Document lead edge
reference position
(OC)
reference position
(OC)
0 - 99
50
B
RRCB-CS1
Resist
motor ON
timing
adjust-
ment
motor ON
timing
adjust-
ment
Standard
Tray
Tray
1 - 99
50
C
RRCB-DSK
Desk
1 - 99
50
D
RRCB-MFT
Manual
paper
feed
paper
feed
1 - 99
50
E
RRCB-ADU
ADU
1 - 99
50
F
Image
loss area
setting
value
loss area
setting
value
LEAD
Lead edge image
loss area setting
loss area setting
0 - 99
30
G
SIDE
Side image loss area
adjustment
adjustment
0 - 99
20
H
Void area
adjust-
ment
adjust-
ment
DENA
Lead edge void area
adjustment
adjustment
1 - 99
30
I
DENB
Rear edge void area
adjustment
adjustment
1 - 99
30
J
FRONT/
REAR
REAR
FRONT/REAR void
area adjustment
area adjustment
1 - 99
30
K
Off-center
adjus-
tment
adjus-
tment
OFSET_OC
OC document off-
center adjustment
center adjustment
1 - 99
50
L
Magnifi-
cation
ratio
correction
cation
ratio
correction
SCAN_
SPEED_OC
SPEED_OC
SCAN sub scanning
magnification ratio
adjustment (CCD)
magnification ratio
adjustment (CCD)
1 - 99
50
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$˖
˷̚˹
/($'('*($'-8670(179$/8(
˖55&$
$˖
˖55&%&6
%˖
˖55&%'6.
&˖
˖55&%0)7
'˖
7(67
M
Sub
scanning
direction
print area
correction
value
scanning
direction
print area
correction
value
DENB-MFT
Manual feed
correction value
correction value
1 - 99
50
N
DENB-CS1
Tray 1 correction
value
value
1 - 99
50
O
DENB-CS2
Tray 2 correction
value
value
1 - 99
50
P
DENB-CS3
Tray 3 correction
value
value
1 - 99
50
Q
DENB-CS4
Tray 4 correction
value
value
1 - 99
50
R
DENB-ADU
ADU correction value
1 - 99
50
Display/Item
Content
Setting
range
De-
fault
Click on the first or last page to see other DX-C310 / DX-C311 / DX-C400 / DX-C401 (serv.man5) service manuals if exist.