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Chapter 2
3) When the feed roller drive gear is engaged with the feed roller shaft gear, drive power is transferred to the feed roller shaft gear and consequently the feed roller
starts rotating.
4) When the pickup roller rotates once, the toothless portion of the pickup roller drive gear comes to the position of the relay gear and consequently drive power of
the main motor is not transferred, stopping the rotation of pickup and feed rollers.
5) The picked up paper is fed to the registration roller through the vertical path roller.
2.1.3 Cassette Paper Size Detection
The size of the paper in the cassette is detected by the DC controller PCB when the user changes the position of the cassette paper size lever. When the cassette is
inserted in the iR host machine, the paper size lever pushes the paper size switches provided in the iR host machine to allow the DC controller PCB to detect presence
of the cassette and the size of paper. Paper size switches are arranged as shown below. Paper sizes are determined by the combinations of the switches pushed by
the paper size lever.
2-2
F-2-3
F-2-4
PSIZE1
PSIZE4
PSIZE2
PSIZE3
F-2-5
0011-1555
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