Sharp DX-C310 / DX-C311 / DX-C400 / DX-C401 (serv.man5) Service Manual ▷ View online
DX-C401 ADJUSTMENTS 4 – 13
ADJ 6
Image off-center adjustment
(Print engine section)
(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 [ADJ 5] print engine image magnification ratio (BK) (main
* When the LSU is replaced or removed.
* When a paper tray is replaced.
* When the paper tray section is disassembled.
* When [ADJ 5] print engine image magnification ratio (BK) (main
scanning direction) is performed.
* 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, check to insure the following
item.
* Check that the print engine image magnification ratio adjustment
* 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, check to insure the following
item.
* Check that the print engine image magnification ratio adjustment
(BK) (main scanning direction) has been properly adjusted.
1)
Enter SIM50-10 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
2)
Select a target paper feed tray to be adjusted with the scroll
keys.
keys.
3)
Set A4 (11" x 8.5") paper in the paper feed tray selected in pro-
cedure 2).
cedure 2).
4)
Press [EXECUTE] key.
The adjustment pattern is printed.
The adjustment pattern is printed.
5)
Check that the adjustment pattern image is printed in the cor-
rect position.
Measure the dimension of the void area in the front and the
rear frame direction of the adjustment pattern, and check that
all the following conditions are satisfied.
rect position.
Measure the dimension of the void area in the front and the
rear frame direction of the adjustment pattern, and check that
all the following conditions are satisfied.
RV: REAR VOID AREA
FV: FRONT VOID AREA
FV: FRONT VOID AREA
RV + FV
8.0mm
RV = 3.0
2.0mm
FV = 3.0
2.0mm
If the above requirement is not met, do the following steps.
6)
Change the adjustment value.
Enter the adjustment value and press [OK] key. (For the 4.3
Inch LCD model, press the OSA shortcut key.)
When [EXECUTE] key is pressed, the adjustment pattern is
printed.
When the adjustment value is increased, the adjustment pat-
tern is shifted to the front frame side. When it is decreased, the
adjustment pattern is shifted to the rear frame side.
Enter the adjustment value and press [OK] key. (For the 4.3
Inch LCD model, press the OSA shortcut key.)
When [EXECUTE] key is pressed, the adjustment pattern is
printed.
When the adjustment value is increased, the adjustment pat-
tern is shifted to the front frame side. When it is decreased, the
adjustment pattern is shifted to the rear frame side.
Display/Item
Content
Setting
range
Default
A
BK-MAG
Main scan print
magnification ratio BK
magnification ratio BK
60 - 140
100
B
MAIN-MFT
Print off center adjustment
value (Manual paper feed)
value (Manual paper feed)
1 - 99
50
C
MAIN-CS1
Print off center adjustment
value (Tray 1)
value (Tray 1)
1 - 99
50
D
MAIN-CS2
Print off center adjustment
value (Tray 2)
value (Tray 2)
1 - 99
50
E
MAIN-CS3
Print off center adjustment
value (Tray 3)
value (Tray 3)
1 - 99
50
F
MAIN-CS4
Print off center adjustment
value (Tray 4)
value (Tray 4)
1 - 99
50
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(
G
MAIN-ADU
Print off center adjustment
value (ADU)
value (ADU)
NOTE:
Before execution of
this adjustment,
check to insure that
the adjustment
items A - F have
been properly
adjusted. If not, this
adjustment cannot
be made properly.
this adjustment,
check to insure that
the adjustment
items A - F have
been properly
adjusted. If not, this
adjustment cannot
be made properly.
1 - 99
50
H
SUB-MFT
Registration
motor ON
Timing
adjustment
motor ON
Timing
adjustment
Manual
paper feed
paper feed
1 - 99
50
I
SUB-CS1
Standard
tray
tray
1 - 99
50
J
SUB-DSK
DESK 1
-
99
50
K
SUB-ADU
ADU
1 - 99
50
L
MULTI COUNT
Number of print
1 - 999
1
M
PAPER
MFT
Tray
selection
selection
Manual paper
feed
feed
1 - 5
1
2 (CS1)
CS1
Tray 1
2
CS2
Tray 2
3
CS3
Tray 3
4
CS4
Tray 4
5
N
DUPLEX
YES
Duplex
print
selection
selection
Yes
0 - 1
0
1 (NO)
NO
No
1
Display/Item
Content
Setting
range
Default
3.0 2.0mm
RV
3.0 2.0mm
FV
DX-C401 ADJUSTMENTS 4 – 14
When the set value is changed by 1, the shift distance is
changed by about 0.1mm.
Repeat procedures 5) - 6) until the conditions of procedure 5)
are satisfied.
changed by about 0.1mm.
Repeat procedures 5) - 6) until the conditions of procedure 5)
are satisfied.
ADJ 7
Image registration adjustment
(Print engine section)
(Print engine section)
This adjustment is needed in the following situations:
* When the color shift occurs.
* When the LSU (writing) unit is replaced.
* When the LSU (writing) unit is removed from the main unit.
* When the color image registration mistake in the main scanning
* When the color shift occurs.
* When the LSU (writing) unit is replaced.
* When the LSU (writing) unit is removed from the main unit.
* When the color image registration mistake in the main scanning
direction occurs.
* When the color image registration mistake in the sub scanning
direction occurs
* When the unit is installed or when the installing place is changed.
* When maintenance work is performed. (Replacement of the
* When maintenance work is performed. (Replacement of the
OPC drum, the OPC cartridge, the transfer unit, the transfer belt,
etc.)
etc.)
* When [ADJ 5] print engine image magnification ratio (BK) (main
scanning direction) is performed.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
Note before adjustment
(Before execution of this adjustment, all the following adjustments
must have been completed.)
* [ADJ 3] image skew adjustment (LSU (writing) unit)
* [ADJ 5] print engine image magnification ratio (BK) (main scan-
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
Note before adjustment
(Before execution of this adjustment, all the following adjustments
must have been completed.)
* [ADJ 3] image skew adjustment (LSU (writing) unit)
* [ADJ 5] print engine image magnification ratio (BK) (main scan-
ning direction) (print engine section)
7-A
Image registration adjustment (Main
scanning direction, sub scanning direction)
(Auto adjustment)
scanning direction, sub scanning direction)
(Auto adjustment)
In this adjustment, the image registration adjustment in the main
scanning direction and that in the sub scanning direction are exe-
cuted simultaneously and automatically.
1)
scanning direction and that in the sub scanning direction are exe-
cuted simultaneously and automatically.
1)
Enter SIM50-22 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
Abnormal end
EXECUTE
Adjustment completed
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$872$'-8670(172)5(*,675$7,21 '580326,7,21
12:(;(&87,1*
7(67
(;(&87(
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$872$'-8670(172)5(*,675$7,21 '580326,7,21
35(66>(&(;87(@7267$57
(55257211(5(037<
7(67
(;(&87(
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$872$'-8670(172)5(*,675$7,21 '580326,7,21
0$,1)0$,1568%6.(:
&ǂ/1*
052.
</2.
7(67
(;(&87(
5(*,67
'580326
$//
DX-C401 ADJUSTMENTS 4 – 15
(8.5 Inch LCD model)
2)
Select the [ALL] adjustment mode.
3)
Press [EXECUTE] key.
[EXECUTE] key is highlighted and the image registration auto
adjustment is started. After completion of the adjustment,
[EXECUTE] key returns to the normal display and the adjust-
ment result is displayed.
It takes about 20 sec to complete the adjustment.
[EXECUTE] key is highlighted and the image registration auto
adjustment is started. After completion of the adjustment,
[EXECUTE] key returns to the normal display and the adjust-
ment result is displayed.
It takes about 20 sec to complete the adjustment.
* When terminated abnormally, "ERROR" and the content are dis-
played.
* For details, refer to SIM50-22.
To check the auto adjustment result, use the manual image
registration adjustment mode below.
* Image registration adjustment (Main scanning direction) (Manual
To check the auto adjustment result, use the manual image
registration adjustment mode below.
* Image registration adjustment (Main scanning direction) (Manual
adjustment) (SIM50-20)
* Image registration adjustment (Sub scanning direction) (Manual
adjustment) (SIM50-20)
7-B
Image registration adjustment (Main
scanning direction) (Manual adjustment)
scanning direction) (Manual adjustment)
NOTE: If item "AR_AUTO" in SIM44-1 is 0 (Allows) and process
control is executed, the image registration adjustment is
executed automatically and updates the result in each
case.
In case of retaining the manual adjustment result, 1 must
be set to item "AR_AUTO" of SIM44-1 (inhibits).
executed automatically and updates the result in each
case.
In case of retaining the manual adjustment result, 1 must
be set to item "AR_AUTO" of SIM44-1 (inhibits).
1)
Enter SIM50-20 mode.
(4.3 Inch LCD model)
(4.3 Inch LCD model)
(8.5 Inch LCD model)
EXECUTE
Adjustment completed
Abnormal end
ǂǂǂ6,08/$7,21ǂǂ12
&/26(
$˖
˷̚˹
5(*,675$7,21$'-8670(17)52175($5',5(&7,21
˖&<$1)5217
$˖
˖&<$15($5
%˖
˖0$*(17$)5217
&˖
˖0$*(17$5($5
'˖
7(67
(;(&87(
DX-C401 ADJUSTMENTS 4 – 16
2)
Select the paper feed tray with A4 (11" x 8.5") paper.
3)
Press [EXECUTE] key.
The image registration adjustment pattern is printed.
The image registration adjustment pattern is printed.
4)
Check the rough adjustment and the fine adjustment print pat-
tern positions of each color in the front frame and the rear
frame sides.
Use the visually highest color density section as the center,
and measure the shift amount.
The front frame registration and the rear frame registration are
adjusted independently.
To check the image registration, therefore, check the front
frame side and the rear frame side individually.
Rough adjustment pattern check: Check the color image regis-
tration check section, and use the black scale of "0" as the
center reference, and check the balance in shifts of the color
image line positions in the positive and the negative directions.
With the scale of "0" as the center reference, the color image
line on the positive side must be on the symmetrical position of
that on the negative side.
Fine adjustment pattern check: Check to confirm that the dark
area (one of the five areas which are normally to be seen) is at
the center of the image registration fine adjustment reference
frame in the square frame.
In this case, use the color image registration check scale (fine
adjustment) as the reference.
Check to confirm that the center position of the dark section is
within
tern positions of each color in the front frame and the rear
frame sides.
Use the visually highest color density section as the center,
and measure the shift amount.
The front frame registration and the rear frame registration are
adjusted independently.
To check the image registration, therefore, check the front
frame side and the rear frame side individually.
Rough adjustment pattern check: Check the color image regis-
tration check section, and use the black scale of "0" as the
center reference, and check the balance in shifts of the color
image line positions in the positive and the negative directions.
With the scale of "0" as the center reference, the color image
line on the positive side must be on the symmetrical position of
that on the negative side.
Fine adjustment pattern check: Check to confirm that the dark
area (one of the five areas which are normally to be seen) is at
the center of the image registration fine adjustment reference
frame in the square frame.
In this case, use the color image registration check scale (fine
adjustment) as the reference.
Check to confirm that the center position of the dark section is
within
2 step.
(If the fine adjustment print pattern is located in the range of 0
2 from the fine adjustment reference pattern scale, the adjust-
ment is not required.)
If the above condition is not satisfied, select the color mode
adjustment item A - F to be adjusted and change the adjust-
ment value to adjust.
2 from the fine adjustment reference pattern scale, the adjust-
ment is not required.)
If the above condition is not satisfied, select the color mode
adjustment item A - F to be adjusted and change the adjust-
ment value to adjust.
Repeat procedures 3) - 4) until a satisfactory result is obtained.
NOTE: If either of front or rear adjustment value is changed, the
other adjustment print pattern position may be varied. Be
careful of that.
careful of that.
A-sub
B-sub
A-main
B-main
The color image registrations of all the colors on the F side
and on the R side must be within the specified range.
R side
F side
Color image registration check
section (Rough adjustment)
C (Image registration fine adjustment reference frame)
Color image registration
check scale
(Fine adjustment)
A-main: Main scan rough adjustment pattern
A-sub: Sub scan rough adjustment pattern
B-main: Main scan fine adjustment scale
B-sub: Sub scan fine adjustment scale
C: Main scan sub scan fine adjustment pattern
Display/Item
Content
Adjustment
value range
value range
Default
A
CYAN
(FRONT)
(FRONT)
Image registration
adjustment value
(Main scanning direction)
(Cyan) (F side)
adjustment value
(Main scanning direction)
(Cyan) (F side)
1 - 199
100
B
CYAN
(REAR)
(REAR)
Image registration
adjustment value
(Main scanning direction)
(Cyan) (R side)
adjustment value
(Main scanning direction)
(Cyan) (R side)
1 - 199
100
C
MAGENTA
(FRONT)
(FRONT)
Image registration
adjustment value
(Main scanning direction)
(Magenta) (F side)
adjustment value
(Main scanning direction)
(Magenta) (F side)
1 - 199
100
D
MAGENTA
(REAR)
(REAR)
Image registration
adjustment value
(Main scanning direction)
(Magenta) (R side)
adjustment value
(Main scanning direction)
(Magenta) (R side)
1 - 199
100
E
YELLOW
(FRONT)
(FRONT)
Image registration
adjustment value
(Main scanning direction)
(Yellow) (F side)
adjustment value
(Main scanning direction)
(Yellow) (F side)
1 - 199
100
F
YELLOW
(REAR)
(REAR)
Image registration
adjustment value
(Main scanning direction)
(Yellow) (R side)
adjustment value
(Main scanning direction)
(Yellow) (R side)
1 - 199
100
Click on the first or last page to see other DX-C310 / DX-C311 / DX-C400 / DX-C401 (serv.man5) service manuals if exist.