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The sensor (tray 5 feed-out) detects the presence of media fed from the tray and controls the media feed lift
motor stop and the transport motor speed. It also detects media jams to identify the media jam zone.
Front
HCF media feed unit assembly operation
Upon receiving the feed start signal from the controller, the HCF activates the pick solenoid after a preset time
has passed to press the pick roller against the media in the tray.
After a preset time has passed, after receiving the feed start signal, the HCF feed lift motor rotates forward to
feed media from the tray to the feed roller side with the pick roller.
When the end of the media reaches the sensor (pre-feed) and the sensor turns on, the pick solenoid is
deactivated so that the pick roller separates from the media in the tray.
The pick solenoid remains activated at a high voltage for a specified time from its actuation. After that, it is
activated at a low voltage until it is deactivated. If the HCF receives the feed start signal for the next media while
Feed roll
Pick roll
Sensor (pre-feed)
Separation roll
HCF media
transport roll assembly
Sensor (tray 5 feed-out)
HCF feed lift motor
HCF transport motor
7558-xxx
Diagnostic aids
3-131
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