Aldc Sensor - Minolta EP3010 Manual

1173SBM0701A
7-1.

AlDC Sensor

To provide image stabilization control, this copier has the AlDC Sensor fitted to the Clean-
ing Unit of the Imaging Unit. The sensor is used to detect the toner density and background
level on the PC Drum.
Operation
1. The AIDC Sensor Board LED projects approx. 950-nm infrared light onto the surface of
the PC Drum.
2. The AIDC Sensor Board phototransistor detects the amount of light reflected back.
3. The phototransistor outputs a voltage corresponding to the intensity of the light
reflected back.
AIDC Sensor
Toner Density on PC Drum
High
Low
PC Drum
Image Transfer/Paper Separation Coronas
Light reflected Output Voltage
Small
Large
M-13
LED Power
Output GND Supply
1149M005AA
High
Low