DOWNLOAD Sharp MX-M904 / MX-M1204 (serv.man10) Service Manual ↓ Size: 90.37 MB | Pages: 127 in PDF or view online for FREE

Model
MX-M904 MX-M1204 (serv.man10)
Pages
127
Size
90.37 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual (Revised May 2017).
File
mx-m904-mx-m1204-sm10.pdf
Date

Sharp MX-M904 / MX-M1204 (serv.man10) Service Manual ▷ View online

MX-M1204  ADJUSTMENTS  5 – 81
 
13-D
Image density and gradation adjustment in 
the FAX send mode (Super fine mode)
1) Enter the Sim. 46-43 mode.
2) Select a mode to be adjusted with the scroll button.
3) Press [EXECUTE] button. 
The adjustment pattern is printed. 
4) Check the print density of the adjustment pattern. 
If the print density of the adjustment pattern is unsatisfactory,
perform the following procedure.
5) Enter the adjustment value with 10-key, and press [OK] button. 
When the adjustment value is increased, the image density is
increased. When the adjustment value is decreased, the
image density is decreased. 
Repeat the procedures 3 thru 5 until a satisfactory result is
obtained.
To select the exposure mode actually used in the FAX send
mode, select item M and enter the set value corresponding to
the exposure mode with 10-key and press [EXECUTE] button. 
 
13-E
Image density and gradation adjustment in 
the FAX send mode (Ultra fine mode)
1)
Enter the Sim. 46-44 mode.
2)
Select a mode to be adjusted with the scroll button.
3)
Press [EXECUTE] button. 
The adjustment pattern is printed. 
4)
Check the print density of the adjustment pattern. 
If the print density of the adjustment pattern is unsatisfactory,
perform the following procedure.
5)
Enter the adjustment value with 10-key, and press [OK] button. 
When the adjustment value is increased, the image density is
increased. When the adjustment value is decreased, the
image density is decreased. 
Repeat the procedures 3 thru 5 until a satisfactory result is
obtained. 
To select the exposure mode actually used in the FAX send
mode, select item M and enter the set value corresponding to
the exposure mode with 10-key and press [EXECUTE] button. 
Enter the adjustment value with 10-key, and press [EXECUTE]
button. 
Display/Item
Content
Setting 
range
Default
A AUTO
FAX auto mode send image 
density (Super fine mode)
1 - 99
50
B EXPOSURE1
FAX exposure level 1 send 
image density 
(Super fine mode)
1 - 99
50
C EXPOSURE2
FAX exposure level 2 send 
image density 
(Super fine mode)
1 - 99
50
D EXPOSURE3
FAX exposure level 3 send 
image density 
(Super fine mode)
1 - 99
50
E EXPOSURE4
FAX exposure level 4 send 
image density 
(Super fine mode)
1 - 99
50
F
EXPOSURE5
FAX exposure level 5 send 
image density 
(Super fine mode)
1 - 99
50
G AUTO
H_TONE
FAX auto exposure mode 
send image density 
(Half-tone/Super fine mode)
1 - 99
50
H EXPOSURE1 
H_TONE
FAX exposure level 1 send 
image density 
(Half-tone/Super fine mode)
1 - 99
50
I
EXPOSURE2 
H_TONE
FAX exposure level 2 send 
image density 
(Half-tone/Super fine mode)
1 - 99
50
J
EXPOSURE3 
H_TONE
FAX exposure level 3 send 
image density 
(Half-tone/Super fine mode)
1 - 99
50
K EXPOSURE4 
H_TONE
FAX exposure level 4 send 
image density 
(Half-tone/Super fine mode)
1 - 99
50
L
EXPOSURE5 
H_TONE
FAX exposure level 5 send 
image density 
(Half-tone/Super fine mode)
1 - 99
50
M EXECUTE 
MODE
AUTO
1
1
(AUTO)
EXP1
2
EXP2
3
EXP3
4
EXP4
5
EXP5
6
AUTO  H_TONE
7
EXP1  H_TONE
8
EXP2  H_TONE
9
EXP3  H_TONE
10
EXP4  H_TONE
11
EXP5  H_TONE
12
Display/Item
Content
Setting 
range
Default
A AUTO
FAX auto exposure mode 
send image density 
(Ultra fine mode)
1 - 99
50
B EXPOSURE1
FAX exposure level 1 send 
image density 
(Ultra fine mode)
1 - 99
50
C EXPOSURE2
FAX exposure level 2 send 
image density 
(Ultra fine mode)
1 - 99
50
D EXPOSURE3
FAX exposure level 3 send 
image density 
(Ultra fine mode)
1 - 99
50
E EXPOSURE4
FAX exposure level 4 send 
image density 
(Ultra fine mode)
1 - 99
50
F EXPOSURE5
FAX exposure level 5 send 
image density 
(Ultra fine mode)
1 - 99
50
G AUTO
H_TONE
FAX auto exposure mode 
send image density 
(Half-tone/Ultra fine mode)
1 - 99
50
H EXPOSURE1 
H_TONE
FAX exposure level 1 send 
image density 
(Half-tone/Ultra fine mode)
1 - 99
50
I
EXPOSURE2 
H_TONE
FAX exposure level 2 send 
image density 
(Half-tone/Ultra fine mode)
1 - 99
50
J
EXPOSURE3 
H_TONE
FAX exposure level 3 send 
image density 
(Half-tone/Ultra fine mode)
1 - 99
50
K EXPOSURE4 
H_TONE
FAX exposure level 4 send 
image density
(Half-tone/Ultra fine mode)
1 - 99
50
L
EXPOSURE5 
H_TONE
FAX exposure level 5 send 
image density 
(Half-tone/Ultra fine mode)
1 - 99
50
M EXECUTE 
MODE
AUTO
1
1
(AUTO)
EXP1
2
EXP2
3
EXP3
4
EXP4
5
EXP5
6
AUTO  H_TONE
7
EXP1  H_TONE
8
EXP2  H_TONE
9
EXP3  H_TONE
10
EXP4  H_TONE
11
EXP5  H_TONE
12
MX-M1204  ADJUSTMENTS  5 – 82
 
13-F
Image density and gradation adjustment in 
the IFAX send mode (600dpi mode)
1) Enter the Sim. 46-45 mode.
2) Select a mode to be adjusted with the scroll button.
3) Press [EXECUTE] button. 
The adjustment pattern is printed. 
4) Check the print density of the adjustment pattern. 
If the print density of the adjustment pattern is unsatisfactory,
perform the following procedure.
5) Enter the adjustment value with 10-key, and press [OK] button. 
When the adjustment value is increased, the image density is
increased. When the adjustment value is decreased, the
image density is decreased. 
Repeat the procedures 3 thru 5 until a satisfactory result is
obtained.
To select the exposure mode actually used in the FAX send
mode, select item M and enter the set value corresponding to
the exposure mode with 10-key and press [EXECUTE] button. 
 
ADJ 14
Setting of the auto exposure 
mode operating conditions in 
copy, scan, and FAX
This adjustment is required in the following cases:
* When the U2 trouble occurs.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* When the SCANNER CONTROL PWB is replaced.
* When the EEPROM on the SCANNER CONTROL PWB is 
replaced.
1)
Enter the Sim. 46-19 mode.
2)
Select the auto mode exposure operating condition of each
mode with the mode button.
Display/Item
Content
Setting 
range
Default
A AUTO
IFAX 600dpi mode/
Auto exposure mode send 
image density
1 - 99
50
B EXPOSURE1
IFAX 600dpi mode/Exposure 
level 1 send image density 
1 - 99
50
C EXPOSURE2
IFAX 600dpi mode/Exposure 
level 2 send image density
1 - 99
50
D EXPOSURE3
IFAX 600dpi mode/Exposure 
level 3 send image density 
1 - 99
50
E EXPOSURE4
IFAX 600dpi mode/Exposure 
level 4 send image density 
1 - 99
50
F EXPOSURE5
IFAX 600dpi mode/Exposure 
level 5 send image density
1 - 99
50
G AUTO 
H_TONE
IFAX 600dpi half-tone mode/
Auto exposure mode send 
image density
1 - 99
50
H EXPOSURE1 
H_TONE
IFAX 600dpi half-tone mode/
Exposure level 1 send image 
density
1 - 99
50
I
EXPOSURE2 
H_TONE
IFAX 600dpi half-tone mode/
Exposure level 2 send image 
density
1 - 99
50
J
EXPOSURE3 
H_TONE
IFAX 600dpi half-tone mode/
Exposure level 3 send image 
density
1 - 99
50
K EXPOSURE4 
H_TONE
IFAX 600dpi half-tone mode/
Exposure level 4 send image 
density
1 - 99
50
L
EXPOSURE5 
H_TONE
IFAX 600dpi half-tone mode/
Exposure level 5 send image 
density
1 - 99
50
M EXECUTE
MODE
AUTO
1
1
(AUTO)
EXP1
2
EXP2
3
EXP3
4
EXP4
5
EXP5
6
AUTO  H_TONE
7
EXP1  H_TONE
8
EXP2  H_TONE
9
EXP3  H_TONE
10
EXP4  H_TONE
11
EXP5  H_TONE
12
MX-M1204  ADJUSTMENTS  5 – 83
 
ADJ 15
Paper size detection 
adjustment
 
15-A
Manual paper feed tray paper width sensor 
adjustment
This adjustment is required in the following cases:
* When the manual paper feed tray section is disassembled.
* When the manual paper feed tray section is replaced.
* When the U2 trouble occurs.
* When the PCB PWB is replaced.
1) Enter the Sim. 40-2 mode.
2) Open the manual paper feed guide to the maximum width, and
press [EXECUTE] key.
[EXECUTE] key is highlighted. When the maximum width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display.
Adjustment steps and display contents
3) Set the manual paper feed guide to the A4 width, and press
[EXECUTE] key.
[EXECUTE] key is highlighted. When the A4 size width detec-
tion level adjustment value is saved, [EXECUTE] key returns
to the normal display.
4)
Set the manual paper feed guide to the A4R width, and press
[EXECUTE] key.
[EXECUTE] key is highlighted. When the A4R size width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display
5)
Set the manual paper feed guide to the minimum width, and
press [EXECUTE] key.
[EXECUTE] key is highlighted. When the minimum width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display.
After completion of the adjustment, "COMPLETE" is displayed.
Item/Display
Content
Set value
Default
NOTE
AE_MODE
Auto exposure mode gamma select 
(for copy)
MODE1, 
MODE2
MODE1
MODE1: High gamma
MODE2: Nomal gamma
AE_STOP_COPY
Auto exposure mode document density 
detecting condition setting (for copy)
ON/OFF
ON
ON
OFF
: The document lead edge section density is 
  detected and exposure is adjusted.
: Real time exposure adjustment
AE_STOP_FAX
Auto exposure mode document density 
detecting condition setting (for FAX)
ON/OFF
ON
ON
OFF
: The document lead edge section density is 
  detected and exposure is adjusted.
: Real time exposure adjustment
AE_STOP_SCAN
Auto exposure mode document density 
detecting condition setting (for scanner)
ON/OFF
ON
ON
OFF
: The document lead edge section density is 
  detected and exposure is adjusted.
: Real time exposure adjustment
AE_FILTER
Auto exposure mode sharpness setting 
(for copy)
SOFT
NORMAL
NORMAL
SHARP
AE_WIDTH
Auto exposure mode document density 
detecting width setting
FULL/PART
FULL
FULL
PART
: Document density detection in A4 (11 X 8.5) width 
: Document density detection in 10mm width on 
  the rear frame side (Document table mode) / 
  Document density detection in 10mm width on 
  the center section (SPDF mode)
Display/Item
Content
MAX POSITION
Maximum width detection level adjustment
P1 (A4) POSITION
A4 width detection level adjustment
P2 (A4R) POSITION
A4R width detection level adjustment
MIN POSITION
Minimum width detection level adjustment
MX-M1204  ADJUSTMENTS  5 – 84
 
15-B
Paper feed tray 4 paper width sensor 
adjustment
This adjustment is required in the following cases:
* When the paper feed tray 4 section is disassembled.
* When the paper feed tray 4 section is replaced.
* When the U2 trouble occurs.
* When the PCU PWB is replaced.
1) Enter the Sim. 40-12 mode.
2) Set the paper feed guide to the maximum width, and press
[EXECUTE] key.
[EXECUTE] key is highlighted. When the maximum width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display.
Adjustment steps and display contents
3) Set the paper feed guide to the minimum width, and press
[EXECUTE] key.
[EXECUTE] key is highlighted. When the minimum width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display.
After completion of the adjustment, "COMPLETE" is displayed.
 
15-C
DSPF paper feed tray document width 
sensor adjustment
This adjustment is required in the following cases:
* When the DSPF paper feed tray section is disassembled.
* When the DSPF paper feed tray section is replaced.
* When the U2 trouble occurs.
* When the scanner PWB is replaced.
* When the EEPROM on the scanner PWB is replaced.
1)
Enter the Sim. 53-6 mode.
2)
Set the DSPF document guide to the maximum width, and
press [EXECUTE] key.
[EXECUTE] key is highlighted. When the maximum width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display.
Adjustment steps and display contents
3)
Set the DSPF paper feed guide to the A4R width, and press
[EXECUTE] key.
[EXECUTE] key is highlighted. When the A4R size width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display.
4)
Set the DSPF paper feed guide to the A5R width, and press
[EXECUTE] key.
[EXECUTE] key is highlighted. When the A5R size width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display. 
5)
Set the DSPF paper feed guide to the minimum width, and
press [EXECUTE] key.
[EXECUTE] key is highlighted. When the minimum width
detection level adjustment value is saved, [EXECUTE] key
returns to the normal display.
After completion of the adjustment, "COMPLETE" is displayed.
Display/Item
Content
MAX POSITION
Maximum width detection level adjustment
MIN POSITION
Minimum width detection level adjustment
Display/Item
Content
TRAYVOLMAX
Maximum width detection level adjustment
TRAYVOLA4R
A4R width detection level adjustment
TRAYVOLA5R
A5R width detection level adjustment
TRAYVOLMIN
Minimum width detection level adjustment
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