Ricoh A229 Service Manual page 240

Mode No.
(Class 1 , 2 & & & & 3)
2-001 Charge Corona Bias Adjustment
3 Total Corona
Current
4 Image Area
5 OHP Sheet
2-101 Printing Erase Margin
1 Leading Edge
2 Trailing Edge
3 Left
4 Right
2-103 LD Power Adjustment
1 LD1 - 400dpi
2 LD1 - 600dpi
3 LD2 - 400dpi
4 LD2 - 600dpi
5 LD1 Power
Adjustment
(Start/End)
6 LD2 Power
Adjustment
(Start/End)
SM
Function
* Adjusts the current applied to the charge
corona wire.
Factory use only.
* Adjusts the voltage applied to the grid plate
during copying when auto process control
is on.
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 OHP mode is selected.
Use this if there is a copy quality problem
when making OHPs.
Normally there is no need to adjust this.
See 2-001-1.
* Adjusts the leading edge erase margin.
The specification is 3 ±2 mm. See
"Replacement and Adjustment - Copy
Image Adjustments" for more on SP2-101.
* Adjusts the trailing edge erase margin.
The specification is 3 ±2 mm.
* Adjusts the left side erase margin.
The specification is 2 ±1.5 mm.
* Adjusts the right side erase margin.
The specification is 2 +2.5/-1.5 mm.
* Adjusts the power of LD1 for 400 dpi
resolution.
Do not change the value.
* Adjusts the power of LD1 for 600 dpi
resolution.
Do not change the value.
Adjusts the power of LD2 for 400 dpi
*
resolution.
Do not change the value.
* Adjusts the power of LD2 for 600 dpi
resolution.
Do not change the value.
* Factory use only. Do not use this SP
mode.
Factory use only. Do not use this SP
*
mode.
4-13
SERVICE PROGRAM MODE
Settings
-900 ~ -1500
10 µA/step
–1200 µ µ µ µ A
-600 ~ -1300
10 V/step
-1000 V
-600 ~ -1300
10 V/step
–780 V
0.0 ~ 9.0
0.1
mm/step
2.0 mm
0.0 ~ 9.0
0.1 mm/step
2.0 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
-127 ~ +127
1/step
1=1.1 µW
+0
-127 ~ +127
1/step
1=1.1 µW
+0
-127 ~ +127
1/step
1=1.1 µW
+0
Start
Stop
Start
Stop
A229