Original Size Detection - Develop ineo+ 6500 Service Manual

4. PAPER FEED SECTION
4.3.2

Original size detection

• Original size detection signal is detected by scanning in the main direction and sub direction.
• The original size detection method differs between normal copy mode and mixed original copy mode.
A. Normal copy mode
• Main scan direction is detected by the resistance value of the size VR (VR301) interlocked with the guide
plate position on the paper feed tray
• Sub-scanning direction is detected by the combination of the size sensor/S (PS309) and size sensor/L
(PS310) when they are turned on and off.
B. Mixed original copy mode
• Maximum original size in main scan direction is detected by the resistance value of the size VR (VR301)
interlocked with the guide plate position on the paper feed tray.
• Sub scan direction is detected by the time when the original passes by the timing sensor (PS302).
• Allowed size combinations are as shown in the table below.
For metric area
Other
originals
A3
A3
A4
B4
Thick
paper
B5
A4S
Thick
paper
A5
B5S
A5S *1
B6S *2
12
Standard originals (max. original size detected by guide plate)
A4 B4 B5
— —
— —
Thick
paper
Thick Thick Thick
paper paper paper
*1
*2
Theory of Operation Ver1.0 Sep.2006
A4S A5 B5S
— — —
— — —
— — —
— — —
—
—
Thick Thick
paper paper
A5S B6S
— —
— —
— —
— —
— —
— —
— —
—