ADF feed system
Pages from the original document enter the ADF from the ADF input tray. A separation roller and
separation pad work together to separate the top sheet from the stack. The page passes through a
set of registration rollers and two sets of feed rollers that advance the page. A set of delivery rollers
delivers the page to the ADF output bin. A bin-full sensor detects when the ADF output bin is full, and
stops the feed mechanism until the bin is emptied.
Figure 5-41 ADF paper path and sensors
Jam detection
When the sensors inside the ADF detect a jam, the feed and read motors immediately stop and send
a signal to the scanner controller PCA, which notifies the formatter. An ADF Paper Jam message
appears on the control-panel display.
To clear a jam, open the jam-access cover and remove the media. When no sensors detect media
after entering the jam state, the jam message is cleared from the control-panel display.
Residual-media jam
During the initialization sequence or after the ADF jam cover has been opened and closed, if the
registration sensor, read sensor, or exit sensor detects the presence of media, the scanner controller
PCA determines that a residual-media jam has occurred.
Scanner system 141
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