Toshiba e-STUDIO2500c, Руководство по обслуживанию, Страница: 320 / 402

e-STUDIO2500c/3500c/3510c IMAGE QUALITY CONTROL May 2006 © TOSHIBA TEC
14 - 2
14.2 Composition
Image quality sensor: Projects the amount of light on the transfer belt and outputs the voltage
corresponding to the reflected light amount from the transfer belt or the
toner image on the transfer belt.
Image quality sensor: Projects the amount of light on the transfer belt and outputs the volt-
age.
D/A converter: Converts light source amount signal into the voltage to the sensor.
Laser optical system: Performs test pattern exposure (for toner image formation).
A/D converter: Converts the output voltage from the sensor into digital values and out-
puts them to the CPU.
Image forming process: Performs charging, laser exposing and developing processes.
CPU: Performs steps [1] to [10] described in chapter 14.4.
Fig. 14-1
CPU
Image forming process
Laser optical system
A/D D/A
Transfer belt
Image quality
sensor
Reflected light
amount signal
Light source
amount signal
Various image forming
conditions