Image Density Adjustment - Ricoh A219 Service Manual

8.1.2 Image Density Adjustment

When: The customer requires the image density to be either darker or lighter.
Purpose: To get proper image density.
Method: SP34
How it works: Changes the ac drive/dc power board output voltage.
NOTE: SP34 settings can be changed by customers.
- SP34: Image Density Adjustment (ADS Mode) -
Setting
Bias Voltage
Change [V]
Exposure Lamp Change
Image Density
1 step = 0.5 V (120 V machines) or 1.0 V (230 V machines)
- SP62 V Correction Interval -
L
Setting
0
1
2
3
4
5
1 step = 0.5 V (120 V machines) or 1.0 V (230 V machines)
SM
CÓPIA NÃO CONTROLADA
0 1
±0
–40
±0 ±0
Normal Lighter
V Correction Interval
L
2 steps/8,000 copies
2 steps/6,000 copies
2 steps/4,000 copies
2 steps/2,000 copies
2 steps/1,000 copies
No correction
6-51
CÓPIA NÃO CONTROLADA
COPY QUALITY ADJUSTMENT
2 3
+40 –40
±0
+4 steps
Darker Lightest
4
+40
–4 steps
Darkest
A219