7.Detailed Descriptions
212
Mechanism
ADF Paper Path
When the original set sensor [1] detects an original and the machine has a copying or scanning job, the
ADF motor rotates to drive the pick-up roller [2], separation roller [3] and feed roller [4] to feed the
original to the ADF feed sensor [5]. If the ADF feed sensor [5] does not detect paper after this
sequence, the machine determines that an original jam has occurred.
If the ADF feed sensor [5] detects paper, then the CIS starts scanning through the exposure glass [6].
After scanning, the output roller [7] will eject the paper to finish the job.
ARDF Paper Path
Front Side
When an original is placed on the original tray correctly, the original set sensor actuator is pushed up
and the original set sensor [A] turns off (not interrupted). The machine judges this state as the
placement of an original. When [Start] is pressed, the ARDF motor rotates the pick-up roller and the
feed roller, and the original can be fed. When [Start] is pressed while the machine has not judged that
an original was placed, scanning starts and then copying.
The image information is scanned on the sheet-through glass and the original is ejected by the
transport roller and the original exit roller.
After starting paper feeding, if the ARDF feed sensor [B] does not detect paper after this sequence, the
machine determines that an original jam has occurred.
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