MX-5050N, MX-5050V, MX-5070N, MX-5070V, MX-6050N, MX-6050V, MX-6070N, MX-6070V (serv.man5). Service Manual for models with the V suffix. - Sharp Copying Equipment Service Manual (repair manual). Page 127

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MX-6070V  SIMULATION  6 – 20
 
8-2
Purpose
Operation test/check/adjustment
Function (Purpose)
Used to check and adjust the operation of
the main charger grid voltage in each
printer mode and the control circuit. 
* When the middle speed is adjusted, the
low speed are also adjusted simultane-
ously.
Section
Process (Charging)
Operation/Procedure
1) Select a speed with [MIDDLE] and [LOW] keys on the touch
panel.
2) Select a target item to be adjusted with scroll keys.
3) Enter the adjustment value with 10-key. (The value specified
on the label of the high voltage PWB must be entered.)
* When the r s key is pressed, the setting value of each item
can be changed with 1up (1down) collectively.
4) Press [OK] key. The set value is saved.
 
8-6
Purpose
Operation test/check/adjustment
Function (Purpose)
Used to check and adjust the operation of
the transport voltage and the control circuit.
Section
Process (Transport)
Operation/Procedure
1) Select a target item to be adjusted with scroll keys.
2) Enter the set value with 10-key. 
Enter the default value specified on the following list.
3) Press [OK] key. The set value is saved.
Item/Display (Mode)
Content
Adjustment 
range
Actual 
voltage
MIDDLE
A
MIDDLE 
SPEED 
GB_K
Main charger 
grid voltage 
(Middle 
speed mode)
K
50 - 850
-630V
±5V
B
MIDDLE 
SPEED 
GB_C
Main charger 
grid voltage 
(Middle 
speed mode)
C
50 - 850
 -630V
±5V
C
MIDDLE 
SPEED 
GB_M
Main charger 
grid voltage 
(Middle 
speed mode)
M
50 - 850
 -630V
±5V
D
MIDDLE 
SPEED 
GB_Y
Main charger 
grid voltage 
(Middle 
speed mode)
Y
50 - 850
 -630V
±5V
LOW
A
LOW 
SPEED 
GB_K
Main charger 
grid voltage 
(Low speed 
mode)
K
50 - 850
 -598V
±5V
B
LOW 
SPEED 
GB_C
Main charger 
grid voltage 
(Low speed 
mode)
C
50 - 850
 -598V
±5V
C
LOW 
SPEED 
GB_M
Main charger 
grid voltage 
(Low speed 
mode)
M
50 - 850
 -598V
±5V
D
LOW 
SPEED 
GB_Y
Main charger 
grid voltage 
(Low speed 
mode)
Y
50 - 850
 -598V
±5V
Item/Display
Content
Setting 
range
Default 
value
A
TC1 LOW SPEED CL   K
Primary transfer bias 
adjustment value
Color
K
Low speed
0 - 255
85
B
TC1 MIDDLE SPEED CL   K
Middle speed
0 - 255
106
C
TC1 LOW SPEED CL   C
C
Low speed
0 - 255
85
D
TC1 MIDDLE SPEED CL   C
Middle speed
0 - 255
106
E
TC1 LOW SPEED CL   M
M
Low speed
0 - 255
85
F
TC1 MIDDLE SPEED CL   M
Middle speed
0 - 255
106
G
TC1 LOW SPEED CL   Y
Y
Low speed 
0 - 255
85
H
TC1 MIDDLE SPEED CL   Y
Middle speed
0 - 255
106
I
TC1 LOW SPEED BW  K
Monochrome
K
Low speed 
0 - 255
85
J
TC1   MIDDLE  SPEED   BW K
Middle speed
0 - 255
106
K
TC2 PLAIN CL SPX
Secondary transfer bias 
adjustment value
Color
Standard
paper 
<Middle speed>
Front surface
0 - 255
96
L
TC2 PLAIN CL DPX
Back surface
0 - 255
96
M
TC2 PLAIN BW SPX
Monochrome
Front surface
0 - 255
96
N
TC2 PLAIN BW DPX
Back surface
0 - 255
96
O
TC2 HEAVY1 CL SPX
Color
Heavy paper 
1<106 -176g/m
2
>
<Low speed >
Front surface
0 - 255
90
P
TC2 HEAVY1 CL DPX
Back surface
0 - 255
96
Q
TC2 HEAVY1 BW SPX
Monochrome
Front surface
0 - 255
90
R
TC2 HEAVY1 BW DPX
Back surface
0 - 255
96
S
TC2 HEAVY2 CL SPX
Color
Heavy paper 2 
<177 - 220g/m
2
>
<Low speed >
Front surface
0 - 255
90
T
TC2 HEAVY2 CL DPX
Back surface
0 - 255
96
U
TC2 HEAVY2 BW SPX
Monochrome
Front surface
0 - 255
90
V
TC2 HEAVY2 BW DPX
Back surface
0 - 255
96
Page of 127
Display

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