Original Size Detection - Gestetner B147 Service Manual

SCANNING

6.3.3 ORIGINAL SIZE DETECTION

[A]
• The original width sensors [A] detect the original width, and the original length
sensors [B] detect the original length.
• The SBU controller on the SBU board checks each sensor status when the
platen cover sensor is activated as it is closed. It detects the original size by the
on/off signals received from each sensor.
• If the copy is made with the platen cover fully open, the SBU controller on the
SBU determines the original size from the sensor outputs after the Start key is
pressed.
B147/B149/B190
L1 L2
W1
W2
6-22
[B]
B146D905.WMF
L3
B146D509.WMF
SM