2-5
Confidential
2.3 Function of Each Sensor/Roller
■ Document scanning
■
Printing part
Part Name Function
Document detection actuator This detects whether documents are loaded on the document tray.
Document pick-up roller This pulls documents loaded in the document tray.
Document separation roller,
ADF separation pad
This separates documents sent through the document pick-up
roller into individual sheets.
Document feed roller 1 This feeds a document to the CIS unit.
Document scanning position actuator This detects the leading edge of document pages, indicating the
scanning start position.
This detects paper jamming in the ADF.
Document feed roller 2 This ejects the scanned document to ADF ejection tray support.
Part Name Function
Paper pull-in roller This feeds the recording paper from the paper tray.
Registration actuator This detects the leading edge of the recording paper and controls
the print start position.
This controls disc tray position during disc printing.
This detects the trailing edge of the recording paper and
determines the recording paper size.
This detects paper jamming in the rear.
Paper feed roller This corrects the inclination of the recording paper when its
leading edge hits the stopped paper feed roller.
After the correction, the paper feed roller rotates and the
recording paper is fed to the print start position.
This feeds the disc tray during disc printing.
Pressure roller release actuator In disc printing, this detects whether the pressure roller is
released.
Paper ejection roller This feeds printed recording paper to the switchback roller.
This pulls in and ejects the disc tray during disc printing.
Switchback roller This ejects the recording paper to the paper ejecting tray.
During duplex printing, the front of the recording paper is
printed on, then after it is fed from the switchback roller to some
extent, it is rotated backwards and fed to the DX chute.
Duplex paper feed roller This feeds the recording paper, which passes through the DX
chute, to the paper feed roller during duplex printing.
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General
Weight and Dimensions
