Sharp MX-2300 G, Service Manual, Page: 123 / 428

MX-2300/2700 N/G SIMULATION 7 – 17
8-6
Purpose : Operation test/Check/Adjustment
Function (Purpose) : Used to check and adjust the operation of
the transfer voltage and the control circuit.
Section : Process (Photoconductor/Developing/
Transfer/Cleaning)/Transfer
Item : Setting
Operation/Procedure
1) Select a target item to be adjusted with [
↑
] [
↓
] buttons.
2) Enter the adjustment value with 10-key.
3) Press [EXECUTE] button.
The set value is saved and the voltage corresponding to the
set value is outputted for 30 sec.
When [EXECUTE] button is pressed, the output is terminated.
Button Item Display Content
Setting
range
Default
value
MIDDLE A MIDDLE
SPEED
GB_K K charging/grid
bias set value at
middle speed 230 to 850 615
B MIDDLE
SPEED
GB_C C charging/grid
bias set value at
middle speed 230 to 850 615
C MIDDLE
SPEED
GB_M M charging/grid
bias set value at
middle speed 230 to 850 615
D MIDDLE
SPEED
GB_Y Y charging/grid
bias set value at
middle speed 230 to 850 615
LOW A LOW
SPEED
GB_K K charging/grid
bias set value at
low speed 230 to 850 605
B LOW
SPEED
GB_C C charging/grid
bias set value at
low speed 230 to 850 605
C LOW
SPEED
GB_M M charging/grid
bias set value at
low speed 230 to 850 605
D LOW
SPEED
GB_Y Y charging/grid
bias set value at
low speed 230 to 850 605
0
A:
A
㧦
615
B
㧦
615
C
㧦
615
㧧
MIDDLE SPEED GB_K
㧧
MIDDLE SPEED GB_C
㧧
MIDDLE SPEED GB_M
SIMULATION NO.08
㧙
02
MHV/GRID SETTING AND OUTPUT
615
㨇
230
㨪
850
㨉
OK
TEST
CLOSE
EXECUTE
D
㧦
615 㧧
MIDDLE SPEED GB_Y
LOW MIDDLE
Item Display Content
Setting
range
Default
value
Actual output
setting range
Default
value
Actual
output value
A TC1 LOW SPEED CL K Primary transfer
bias reference
value COLOR K Low speed 0 to 255 232 –500V to 5000V 4500V
B TC1 MIDDLE SPEED CL K Middle speed 0 to 255 232 –500V to 5000V 4500V
C TC1 LOW SPEED CL CMY CMY Low speed 0 to 255 139 –500V to 5000V 2500V
D TC1 MIDDLE SPEED CL CMY Middle speed 0 to 255 139 –500V to 5000V 2500V
E TC1 LOW SPEED BW K BLACK K Low speed 0 to 255 232 –500V to 5000V 4500V
F TC1 MIDDLE SPEED BW K Middle speed 0 to 255 232 –500V to 5000V 4500V
G TC2 PLAIN CL SPX Secondary transfer
bias reference
value COLOR Normal
paper
Front surface 51 to 255 100 2
µ
A to 45
µ
A 12.5
µ
A
H TC2 PLAIN CL DPX Back surface 51 to 255 100 2
µ
A to 45
µ
A 12.5
µ
A
I TC2 PLAIN BW SPX BLACK Front surface 51 to 255 90 2
µ
A to 45
µ
A 10
µ
A
J TC2 PLAIN BW DPX Back surface 51 to 255 90 2
µ
A to 45
µ
A 10
µ
A
K TC2 HEAVY1 CL SPX COLOR Heavy paper 51 to 255 69 2
µ
A to 45
µ
A 6
µ
A
L TC2 HEAVY1 BW SPX BLACK 51 to 255 69 2
µ
A to 45
µ
A 6
µ
A
M TC2 OHP CL COLOR OHP 51 to 255 60 2
µ
A to 45
µ
A 4
µ
A
N TC2 OHP BW BLACK 51 to 255 60 2
µ
A to 45
µ
A 4
µ
A
O TC2 ENVELOPE CL COLOR Envelope 51 to 255 184 2
µ
A to 45
µ
A 30
µ
A
P TC2 ENVELOPE BW BLACK 51 to 255 184 2
µ
A to 45
µ
A 30
µ
A
Q TC2 CLEANING Cleaning process 51 to 255 79 2
µ
A to 45
µ
A 8
µ
A
R TC2 CLEAN LOW SPD Secondary transfer
cleaning bias
reference value Low speed print 51 to 255 72 –50V to –1500 –200V
S TC2 CLEAN MIDDLE SPD Middle speed print 51 to 255 72 –50V to –1500V –200V
T TC2 CLEAN CLEANING Cleaning 51 to 255 156 –50V to –1500V –800V
CLOSE
A:
A : 232
B : 232
C : 139
TC1 LOW SPEED CL K
TC1 MIDDLE SPEED CL K
TC1 LOW SPEED CL CMY
SIMULATION NO.08-06
THV SETTING AND OUTPUT
232
[ 0~255]
OK
TEST
EXECUTE
0
D : 139 TC1 MIDDLE SPEED CL CMY
CLOSE