Sharp MX-2314N, Service Manual

Page: 149 / 524

MX-3114N SIMULATION 6 – 16
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 simulta-
neously.
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 key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
4) Press [EXECUTE] key.
The set value is saved and the voltage entered with step 3) is
output for 30 sec.
When [EXECUTE] key is pressed, the output is terminated.
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 [EXECUTE] key.
The set value is saved and the voltage corresponding to the
set value is output for 30 sec.
When [EXECUTE] key is pressed, the output is terminated.
Item/Display (Mode) Content
Adjustment
range
Actual voltage
MIDDLE A MIDDLE SPEED GB_K Main charger grid voltage (Middle speed mode) K 150 - 850 –620V

5V
B MIDDLE SPEED GB_C Main charger grid voltage (Middle speed mode) C 150 - 850 –620V

5V
C MIDDLE SPEED GB_M Main charger grid voltage (Middle speed mode) M 150 - 850 –620V

5V
D MIDDLE SPEED GB_Y Main charger grid voltage (Middle speed mode) Y 150 - 850 –620V

5V
LOW A LOW SPEED GB_K Main charger grid voltage (Low speed mode) K 150 - 850 –610V

5V
B LOW SPEED GB_C Main charger grid voltage (Low speed mode) C 150 - 850 –590V

5V
C LOW SPEED GB_M Main charger grid voltage (Low speed mode) M 150 - 850 –590V

5V
D LOW SPEED GB_Y Main charger grid voltage (Low speed mode) Y 150 - 850 –590V

5V
Item/Display Content Setting
value
Default value
23cpm 26cpm/31cpm
A TC1 LOW SPEED CL K
Primary transfer bias
adjustment value
Color
K
Low speed 51 - 255 80 80
B TC1 MIDDLE SPEED CL K
Middle
speed
51 - 255 95 109
C TC1 LOW SPEED CL C
C
Low speed 51 -255 80 80
D TC1 MIDDLE SPEED CL C Middle
speed
51 - 255 95 109
E TC1 LOW SPEED CL M
M
Low speed 51 - 255 80 80
F TC1 MIDDLE SPEED CL M
Middle
speed
51 - 255 95 109
G TC1 LOW SPEED CL Y
Y
Low speed 51 - 255 80 80
H
TC1 MIDDLE SPEED CL Y Middle
speed 51 - 255
95 109
I TC1 LOW SPEED BW K
Black/
White
K
Low speed 51 - 255 80 80
J TC1 MIDDLE SPEED BW K
Middle
speed
51 - 255 95 109
K TC2 PLAIN CL SPX
Secondary transfer bias
adjustment value
Color
Plain
paper
Front
surface
51 - 255 96 103
L TC2 PLAIN CL DPX
Back
surface
51 - 255 76 90
M TC2 PLAIN BW SPX
Black/
White
Front
surface
51 - 255 96 103
N TC2 PLAIN BW DPX
Back
surface
51 - 255 76 90
O TC2 HEAVY CL SPX
Color
Heavy
paper
Front
surface
51 - 255 83 83
P TC2 HEAVY CL DPX
Back
surface
51 - 255 76 76
Q TC2 HEAVY BW SPX
Black/
White
Front
surface
51 - 255 69 69
R TC2 HEAVY BW DPX
Back
surface
51 - 255 69 69