Manual Image Density Control - Ricoh FT6645 Manual

23 April 1993

3.9 MANUAL IMAGE DENSITY CONTROL

When the image density is set manually, the voltage applied to the exposure
lamp changes as shown in the table below.
Dev. Bias
Voltage
(negative)
Exposure
Lamp Voltage
V : Exposure lamp voltage at ID level 4.
LAMP
This value is determined at process control data initial setting.
V : Development bias (negative) voltage at ID level 4.
BB
This value is determined at process control data initial setting.
Lighter
V –90
BB
V –60
BB
V
BB
V +4.5
LAMP
V +3.0
LAMP
V +0.5
LAMP
V
LAMP
V –1.5
LAMP
V –3.5
LAMP
V –5.5
LAMP
7
3
6 5 4
2-41
OPTICS
Darker
2 1
Manual ID
Position