DOWNLOAD Sharp MX-6500N / MX-7500N (serv.man19) Service Manual ↓ Size: 5.74 MB | Pages: 98 in PDF or view online for FREE

Model
MX-6500N MX-7500N (serv.man19)
Pages
98
Size
5.74 MB
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PDF
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Service Manual
Brand
Device
Copying Equipment / Section 5 Adjustments and Settings
File
mx-6500n-mx-7500n-sm19.pdf
Date

Sharp MX-6500N / MX-7500N (serv.man19) Service Manual ▷ View online

MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 8
 
2-C
Transfer current/voltage adjustment
This adjustment must be performed in the following cases:
* When the primary transfer high voltage power PWB or Second-
ary transfer high voltage power PWB is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Enter the SIM 8-6 mode.
2)
Select a mode to be adjusted with the scroll key.
3)
Enter an adjustment value (specified value) and press [OK] key. 
By setting the default value (specified value), the specified voltage is outputted.
When [EXECUTE] key is pressed, the transfer voltage is outputted.
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EXECUTE
EXECUTE 
or after 30 sec.
10-key
Item/Display
Content
Setting 
range
Default value
65cpm 
machine
75 cpm 
machine
A
TC1 LOW 1 SPEED CL K
Primary 
transfer bias 
reference value
Color
K
Low speed 1 
51 - 255
91
91
B
TC1 LOW 2 SPEED CL K
Low speed 2
51 - 255
95
95
C
TC1 MIDDLE SPEED CL K
Middle speed 
51 - 255
99
99
D
TC1 LOW 1 SPEED CL C
C
Low speed 1 
51 - 255
91
91
E
TC1 LOW 2 SPEED CL C
Low speed 2
51 - 255
95
95
F
TC1 MIDDLE SPEED CL C
Middle speed 
51 - 255
99
99
G
TC1 LOW 1 SPEED CL M
M
Low speed 1 
51 - 255
91
91
H
TC1 LOW 2 SPEED CL M
Low speed 2
51 - 255
95
95
I
TC1 MIDDLE SPEED CL M
Middle speed 
51 - 255
99
99
J
TC1 LOW 1 SPEED CL Y
Y
Low speed 1 
51 - 255
91
91
K
TC1 LOW 2 SPEED CL Y
Low speed 2
51 - 255
95
95
L
TC1 MIDDLE SPEED CL Y
Middle speed 
51 - 255
99
99
M
TC1 LOW 1 SPEED BW K
Black and 
white
K
Low speed 1 
51 - 255
91
91
N
TC1 LOW 2 SPEED BW K
Low speed 2
51 - 255
95
95
O
TC1 MIDDLE SPEED BW K
Middle speed 
51 - 255
99
99
MX-7500N  ADJUSTMENTS AND SETTINGS  5 – 9
P
TC2 PLAIN CL SPX
Secondary 
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
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
Counter bias (positive pole)
26 - 255
109
109
AP
PTC LOW 1 SPEED CL
PTC current 
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
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
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
(+)
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)
The following adjustment items can be executed automatically with
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)
* 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)
Menu in SIM50-28 mode
 
3-A
Print image automatic magnification ratio 
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.)
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.
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)
BK-MAG ADJ
Main scanning direction image magnification ratio 
adjustment
SPF ADJ
Image loss off-center sub scanning direction image 
magnification ratio adjustment (DSPF mode)
SETUP/
PRINT ADJ
Print lead edge adjustment, image off-center (each paper 
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)
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.
* [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.
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.
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)
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.)
4)
Press [EXECUTE] key.
The adjustment pattern is printed out.
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