August 2006 PROCESS CONTROL
6-77
Detailed
Descriptions
ID Sensors
There are two ID sensors above the surface of the ITB:
• The black ID sensor (rear) detects the black ID sensor pattern (K).
• The color ID sensor (front) detects the three color ID sensor patterns (Y, C, M).
The black ID sensor is a direct reflection sensor.
The color ID sensor is a combination of a direct reflection sensor and a diffused
reflection sensor. This combination of a direct reflection sensor pair and an
additional diffused reflection sensor achieves more accurate readings for Y, M, C
colors.
40 mm
40 mm
YMC
K
150 mm
B132D902.WMF
B132D904.BMP
B132D903.BMP
Black ID Sensor Color ID Sensor
Rear
Front
ITB (Image Transfer Belt)