Original Size Detection Control - Konica Minolta bizhub c450 Service Manual

Theory of Operation Ver. 1.0 Mar. 2005
7.3.2

Original Size Detection control

A. Detection Method
• For detection of the original size, the reflective size sensors detect the length of the orig-
inal while the CCD detects the length of the original.
• Mounting the optional sensor on a machine intended for the metric areas permits detec-
tion of inch sizes. Mounting the optional sensor on a machine intended for the inch areas
permits detection of metric sizes.
Exposure Unit
• The Image Processing Board determines the original size based on the combination of
detections made by the original size sensors and the CCD.
• An original of an irregular size is rounded to the nearest standard size.
CCD Unit
4037T2C572AA
Original Standard Position
7. Scanner section (IR section)
Automatic Document Feeder
20 degrees
Original Cover Angle Sensor
346.1 mm
313.5 mm
Original Read
Position (30 mm)
Original Size
Detection
Sensor FD1
Original Size
Detection
Sensor FD2 Option
Exposure Unit
4037T2E597AA
17