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PROCESS CONTROL
1.3.8 Initial Setting Sequence
The following graph shows the sequence of events during process control
data initial setting.
Exposure
Lamp
V
800
V
100
Potential
Sensor
Output
1. Potential
sensor
1. Potential sensor calibration
By measuring the output of the drum potential sensor when –100 V and
–800 V are applied to the drum, the sensor output (V
calibrated automatically (See page 2-5 for details).
2. V
, V
, V
potential detection
R
D
L
After about 30 seconds of drum conditioning, V
developed by using the previous grid bias voltage (V
exposure lamp voltage (V
The machine calculates the new V
detected V
R
V
V
R
2. V
, V
R'
potential
Latent Image Control
LAMP
, V
, V
data.
D
L
New V
D
V
L
New V
R
', V
'
3. V
D
L
correction
) data to detect the V
and V
GRID
2-10
for the purpose
of ADS sensor
correction
D
New V
L
, V
4. ID sensor
D
L
pattern
potential
A176D509.wmf
and V
100
and V
Patterns are
D
L
) data and
GRID
, V
, V
R
D
L
data using the
LAMP
15 July 1996
) is
800
data.
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