Sharp MX-6500N / MX-7500N (serv.man19) Service Manual ▷ View online
MX-7500N ADJUSTMENTS AND SETTINGS 5 – 9
P
TC2 PLAIN CL SPX
Secondary
transfer bias
reference value
transfer bias
reference value
Color
Standard
paper
Front surface
51 - 255
145
145
Q
TC2 PLAIN CL DPX
Back surface
51 - 255
145
145
R
TC2 PLAIN BW SPX
Black and
white
Front surface
51 - 255
138
138
S
TC2 PLAIN BW DPX
Back surface
51 - 255
138
138
T
TC2 HEAVY1 CL SPX
Color
Heavy paper 1
Front surface
51 - 255
110
110
U
TC2 HEAVY1 CL DPX
Back surface
51 - 255
103
103
V
TC2 HEAVY1 BW SPX
Black and
white
Front surface
51 - 255
110
110
W
TC2 HEAVY1 BW DPX
Back surface
51 - 255
103
103
X
TC2 HEAVY2 CL SPX
Color
Heavy paper 2
Front surface
51 - 255
96
96
Y
TC2 HEAVY2 CL DPX
Back surface
51 - 255
87
87
Z
TC2 HEAVY2 BW SPX
Black and
white
Front surface
51 - 255
96
96
AA
TC2 HEAVY2 BW DPX
Back surface
51 - 255
87
87
AB
TC2 OHP CL
OHP
Color
51 - 255
110
110
AC
TC2 OHP BW
Black and
white
51 - 255
110
110
AD
TC2 ENVELOPE CL
Envelope
Color
51 - 255
83
83
AE
TC2 ENVELOPE BW
Black and
white
51 - 255
83
83
AF
TC2 THIN CL
Thin paper
Color
51 - 255
138
138
AG
TC2 THIN BW
Black and
white
51 - 255
138
138
AH
TC2 GLOSSY CL
Glossy paper
Color
51 - 255
110
110
AI
TC2 GLOSSY BW
Black and
white
51 - 255
110
110
AJ
TC2 EMBOSS CL
Embossed paper
Color
51 - 255
96
96
AK
TC2 EMBOSS BW
Black and
white
51 - 255
80
80
AL
TC2 CLEAN LOW 1 SPEED
Bias reference
value between
papers
value between
papers
In low speed 1 print
51 - 255
76
76
AM
TC2 CLEAN LOW 2 SPEED
In low speed 2 print
51 - 255
76
76
AN
TC2 CLEAN MIDDLE SPEED
In middle speed print
51 - 255
76
76
AO
TC2 COUNTER
Counter bias
reference value
reference value
Counter bias (positive pole)
26 - 255
109
109
AP
PTC LOW 1 SPEED CL
PTC current
reference value
reference value
Color
Low speed 1
51 - 255
119
119
AQ
PTC LOW 2 SPEED CL
Low speed 2
51 - 255
119
119
AR
PTC MIDDLE SPEED CL
Middle speed
51 - 255
119
119
AS
PTC LOW 1 SPEED BW
Black and white
Low speed 1
51 - 255
119
119
AT
PTC LOW 2 SPEED BW
Low speed 2
51 - 255
119
119
AU
PTC MIDDLE SPEED BW
Middle speed
51 - 255
119
119
AV
PTC EMBOSS
Both
Low speed 2
51 - 255
119
119
AW
CASE VOLT LOW 1 CL
PTC case
voltage
reference value
voltage
reference value
Color
Low speed 1
0 - 255
0
0
AX
CASE VOLT LOW 2 CL
Low speed 2
0 - 255
0
0
AY
CASE VOLT MIDDLE CL
Middle speed
0 - 255
0
0
AZ
CASE VOLT LOW 1 BW
Black and white
Low speed 1
0 - 255
0
0
BA
CASE VOLT LOW 2 BW
Low speed 2
0 - 255
0
0
BB
CASE VOLT MIDDLE BW
Middle speed
0 - 255
0
0
BC
CASE VOLT EMBOSS
Both
Low speed 2
0 - 255
0
0
BD
TC2 DRIVEROLL LOW 1 SPEED CL
Secondary
transfer drive
roller bias
reference value
transfer drive
roller bias
reference value
Color
Low speed 1
51 - 255
196
196
BE
TC2 DRIVEROLL LOW 2 SPEED CL
Low speed 2
51 - 255
196
196
BF
TC2 DRIVEROLL MIDDLE SPEED CL
Middle speed
51 - 255
196
196
BG
TC2 DRIVEROLL LOW 1 SPEED BW
Black and white
Low speed 1
51 - 255
196
196
BH
TC2 DRIVEROLL LOW 2 SPEED BW
Low speed 2
51 - 255
196
196
BI
TC2 DRIVEROLL MIDDLE SPEED BW
Middle speed
51 - 255
196
196
BJ
TC2 CLEAN BRUSH(+) LOW 1 SPEED
Secondary
transfer
cleaning brush
bias reference
value
transfer
cleaning brush
bias reference
value
(+)
Low speed 1
51 - 255
0
0
BK
TC2 CLEAN BRUSH(+) LOW 2 SPEED
Low speed 2
51 - 255
0
0
BL
TC2 CLEAN BRUSH(+) MIDDLE SPEED
Middle speed
51 - 255
0
0
BM
TC2 CLEAN BRUSH(-) LOW 1 SPEED
(-)
Low speed 1
51 - 255
0
0
BN
TC2 CLEAN BRUSH(-) LOW 2 SPEED
Low speed 2
51 - 255
0
0
BO
TC2 CLEAN BRUSH(-) MIDDLE SPEED
Middle speed
51 - 255
0
0
Item/Display
Content
Setting
range
Default value
65cpm
machine
75 cpm
machine
MX-7500N ADJUSTMENTS AND SETTINGS 5 – 10
ADJ 3
Print/scan image automatic
magnification ratio adjustment,
Print/scan image automatic
position adjustment
(Automatic adjustment)
magnification ratio adjustment,
Print/scan image automatic
position adjustment
(Automatic adjustment)
The following adjustment items can be executed automatically with
SIM50-28. (All paper feed trays including the option desk/LCC)
SIM50-28. (All paper feed trays including the option desk/LCC)
* ADJ 15
Print image position, image magnification ratio, void area, off-
center adjustment (Print engine) (Manual adjustment)
center adjustment (Print engine) (Manual adjustment)
* ADJ 16
Scan image magnification ratio adjustment (Manual adjustment)
* ADJ 17
Scan image off-center adjustment (Manual adjustment)
* ADJ 18
Copy image position and image loss adjustment
(Manual adjustment)
(Manual adjustment)
Menu in SIM50-28 mode
3-A
Print image automatic magnification ratio
adjustment (Main scanning direction)
(Print engine)
adjustment (Main scanning direction)
(Print engine)
1)
Enter the SIM50-28 mode.
2)
Select [BK-MAG ADJ] with the key.
3)
Select the paper feed tray with paper in it with the key.
(Any paper size will do.)
(Any paper size will do.)
4)
Press [EXECUTE] key.
The adjustment pattern is printed out.
5)
Set the adjustment pattern on the document table.
CAUTION: Fit the adjustment pattern correctly with the document
guide.
In this case, put 5 sheets of white paper on the printed
adjustment pattern.
adjustment pattern.
6)
Press [EXECUTE] key.
The following item is automatically adjustment.
* Print image main scanning direction image magnification
ratio.
7)
Press [OK] key.
The adjustment result becomes valid.
Display/Item
Content
OC ADJ
Image loss off-center sub scanning direction image
magnification ratio adjustment (Document table mode)
magnification ratio adjustment (Document table mode)
BK-MAG ADJ
Main scanning direction image magnification ratio
adjustment
adjustment
SPF ADJ
Image loss off-center sub scanning direction image
magnification ratio adjustment (DSPF mode)
magnification ratio adjustment (DSPF mode)
SETUP/
PRINT ADJ
PRINT ADJ
Print lead edge adjustment, image off-center (each paper
feed tray, duplex mode) adjustment
feed tray, duplex mode) adjustment
RESULT
Adjustment result display
DATA
Display of data used when an adjustment is executed
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 11
3-B
Print image automatic position adjustment
(Main scanning direction, sub scanning
direction) (Print engine)
(Each paper feed tray)
(Main scanning direction, sub scanning
direction) (Print engine)
(Each paper feed tray)
1)
Enter the SIM50-28 mode.
2)
Select [SETUP/PRINT ADJ] with the key.
3)
Select [ALL] with the key.
NOTE:
By pressing [LEAD] or [OFFSET] key, the following items can
be executed individually.
be executed individually.
* [LEAD]: Print image lead edge image position adjustment
* [OFFSET]: Print image off-center adjustment
When [ALL] is selected, both of the above two items are
executed simultaneously.
executed simultaneously.
4)
Select a paper feed tray to be adjusted.
5)
Press [EXECUTE] key.
The adjustment pattern is printed out.
6)
Set the adjustment pattern on the document table.
CAUTION: Fit the adjustment pattern correctly with the document
guide.
In this case, put 5 sheets of white paper on the printed
adjustment pattern.
adjustment pattern.
7)
Press [EXECUTE] key.
The following item is automatically adjustment.
* Print image lead edge image position adjustment
* Print image off-center adjustment
8)
Press [OK] key.
The adjustment result becomes valid.
Perform procedures 4) to 7) for each paper feed tray.
3-C
Scan image automatic magnification ratio
adjustment (Sub scanning direction)
(Scanner), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (Scanner)
adjustment (Sub scanning direction)
(Scanner), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (Scanner)
1)
Enter the SIM50-28 mode.
2)
Select [OC ADJ] with the key.
3)
Select the paper feed tray with paper in it with the key.
(Any paper size will do.)
(Any paper size will do.)
4)
Press [EXECUTE] key.
The adjustment pattern is printed out.
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MX-7500N ADJUSTMENTS AND SETTINGS 5 – 12
5)
Set the adjustment pattern on the document table. (Either
direction will do.)
direction will do.)
CAUTION: Fit the adjustment pattern correctly with the document
guide.
In this case, put 5 sheets of white paper on the printed
adjustment pattern.
adjustment pattern.
6)
Press [EXECUTE] key.
The following item is automatically adjustment.
* Copy lead edge image reference position adjustment, image
off-center, sub scanning direction image magnification ratio
automatic adjustment
automatic adjustment
7)
Press [OK] key.
The adjustment result becomes valid.
3-D
Scan image automatic magnification ratio
adjustment (Sub scanning direction)
(DSPF), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (DSPF)
adjustment (Sub scanning direction)
(DSPF), Scan image automatic position
adjustment (Main scanning direction, sub
scanning direction) (DSPF)
This adjustment must be performed in the following cases:
* 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.
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).
<List of adjustment items>
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Menu display item
Content
SIDE1
DSPF adjustment front surface
SIDE2
DSPF adjustment back surface
ALL
DSPF adjustment front/back surface
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