Stop Position Of Image Scanner - Riso GR 3770 Technical Manual

FLAT BED IMAGE SCANNING SECTION
THEORY OF OPERATION

2. STOP POSITION OF IMAGE SCANNER

Positions for the image scanner to stop include the following four:
• Home position (Image scanner home position sensor position)
• Original detecting position
• ADF shading position (ADF shading sensor position)
• ADF read-in position
Image scanner home
position sensor
Home position
(Home position sensor position)
120 mm
Original detecting position
* The correct Home position sensor position is in the Home position sensor ON → OFF position.
* The correct ADF shading sensor position is 1mm apart from the ADF shading sensor OFF → ON position when
the image scanner has moved toward scanning.
GR3770
Image scanner ADF shading sensor
ADF shading position
(ADF shading sensor position)
Home positioning direction
(HP)
Scanning direction
474 mm
60 mm
ADF read-in position
3 - 2