Gestetner A294 Service Manual page 238

SERVICE PROGRAM MODE
Mode No.
(Class 1, 2 and 3)
2-001 Charge Corona Bias Adjustment
2 ID Sensor
Pattern (Auto
Process Control
OFF)
3 Image Area
(Auto Process
Control ON)
4 Grid Voltage for
Transparent
Sheet
5 Total Corona
Current
6 Total Corona
Current (Photo
mode)
7 V (Auto
D
Process
Control)
2-101 Printing Erase Margin
1 Leading Edge
2 Trailing Edge
3 Left
4 Right
2-103 LD Power Adjustment
1 LD1 - 600dpi
SM
CÓPIA NÃO CONTROLADA
Adjusts the voltage applied to the grid plate
when making the ID sensor pattern, when
auto process control is switched off.
B Normally, there is no need to adjust this.
If the user wants high density copies, the
sensor pattern must be lighter, so this
voltage must be a higher negative voltage.
Adjusts the voltage applied to the grid plate
during copying when auto process control
is switched on.
B
This voltage changes every time auto
process control starts up (every time the
machine is switched on)
Adjusts the voltage applied to the grid plate
when translucent mode is selected.
Use this if there is a copy quality problem
B
when making copies on translucent paper.
Normally there is no need to adjust this.
See 2-001-1.
Adjusts the current applied to the charge
corona wire except for Photo mode.
B
Adjusts the current applied to the charge
corona wire for Photo mode.
B
Adjusts the target V
Control Initial Setting.
B
Adjusts the leading edge erase margin.
See "Replacement and Adjustment – Copy
S
Image Adjustments" for more on SP2-101.
Adjusts the trailing edge erase margin.
S
Adjusts the left side erase margin.
S
Adjusts the right side erase margin.
S
Adjusts the power of LD1.
B Do not change the value.
4-16
CÓPIA NÃO CONTROLADA
Function
voltage for Process
D
Rev. 9/2001
Settings
–600 ~ –1,300
10 V/step
–800 V
–600 ~ –1,300
10 V/step
[A294/A295 I]
–1,000 V
[A294/A295 II]
–950 V
–600 ~ –1,300
10 V/step
[A294/A295 I]
–1,070 V
[A294/A295 II]
–950 V
–1,400 ~
–2,800
100µA/step
–1,400 µA
1,400 ~
–2,800
100µA/step
–1,600 µA
–800 ~ –1,000
10 V/step
[A294/A295 I]
–970 V
[A294/A295 II]
–850 V
0.0 ~ 9.0
0.1 mm/step
2.5 mm
0.0 ~ 9.0
0.1 mm/step
2.5 mm
0.0 ~ 9.0
0.1 mm/step
2.0 mm
0.0 ~ 9.0
0.1 mm/step
2.0 mm
–127 ~ +127
1/step
1 = 1.1 µW
+0
A294/A295