Ricoh FT 4015 Service Manual page 36

DEVELOPMENT
5.4.1 Base Bias Voltage Factor in Manual Image Density Mode
Darker
Manual ID
Level
Exposure
Lamp Voltage
Factor
Development
Bias Voltage
(Volts)
When manual ID level 6 or 7 is selected, –40 V is added to the base bias
voltage.
Using SP33 (Image Bias Adjustment), the base bias voltage can be
increased or decreased for all manual ID levels as follows:
SP Setting
0
1
2
3
4
1 2
V – 6 V – 4
0 0
steps steps
–200 –200
Setting Dev. Bias
Normal
Darkest +40 V
Darker +20 V
Lighter –20 V
Lightest –40 V
3 4
V – 2
0
V
0
steps
–200 –200
Note
0 Default
2-22
20 December 1996
5 6
V + 2 V + 6
0 0
steps steps
–200 –240
V : Depends on the setting of SP48
0
Lighter
7
V + 12
0
steps
–240