Original Size Detection Control - Olivetti d-Color MF550 Theory Of Operation

7. Scanner section (IR section)
7.3.3

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 width 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
• With Image processing board, the original size will be judged by the original size sensor
and CCD.
• An original of an irregular size is rounded to the nearest standard size.
NOTE
• Table 1 or 2 can be selected in the service mode.
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CCD unit
A00JT2C029AA
Original standard
position
Theory of Operation
Theory of Operation Ver. 8.0 Jun. 2008
Automatic document feeder
20 degrees
20 degree sensor (PS202)
346.1 mm
313.5 mm
Original read
position
Original size
detection
sensor 1 (PS204)
Original size
detection
sensor 2 (PS205)
Exposure unit
4037T2E597AA
Y107522-3