1-28
Control point
High Density
Ideal Curve
Middle Density
Density data from printer
255
0
0.35
1.25
Image Density (ID)
Electronic Pattern
Halftone
Black
Halftone
sensor
Copy density
sensor
Sensor
Output
Drum
Black sensor
Halftone
Black
Grid Voltage
Laser Power
Laser Unit
Digital
QUANTUM
(QUARC)
Control