Parts Names And Functions - Brother DCP-J4110DW Service Manual

2.3

Parts Names and Functions

Document scanning and feeding

Names
Document detection actuator
Document pick-up roller
Document separation roller,
ADF separation pad
Document feed roller 1
Document scanning position
actuator
Document feed roller 2
Printing and paper feeding

Names
T1 paper pull-in roller
T2 paper pull-in roller
Registration actuator
Paper feed roller
Paper ejection roller
Switchback actuator
Switchback roller
Duplex paper feed roller
Functions
This detects whether documents are set on the document tray.
This pulls documents loaded in the document tray into the ADF.
This separates documents sent by the document pick-up roller in
single sheet.
This feeds a document to the CIS unit.
This detects the leading edge of document pages, indicating the
scanning start position.
This detects paper jamming in the ADF.
This ejects the scanned document to ADF document support.
Functions
This feeds recording paper from the paper tray 1.
This feeds recording paper from the paper tray 2.
This detect the leading edge of recording paper, controlling the
printing start position.
This detect the leading edge/ending edge of recording paper,
identifying the recording paper size.
This detects paper jamming in the rear.
The leading edge of recording page hits the stopped paper feed
roller, correcting inclination of the paper. After the correction, the
paper feed roller rotates, feeding the paper to printing start position.
This feeds printed recording paper to the switchback roller.
This detects whether the printed recording papers are ejected.
This detects the ending edge of recording paper after printing the
first side when duplex-printing, adjusting timing to reverse the
switchback roller rotation.
This detect the leading edge/ending edge of recording paper when
duplex-printing, identifying the recording paper size.
This detects whether the recording papers are fed from the
switchback roller to the duplex-printing path.
This detects paper jamming in the ejector.
Detect if paper tray 1 is set.
This ejects the recording paper to the ejected paper tray.
During duplex-printing, after feeding some of the recording papers
printed in the first side to the switchback roller, its rotation is
reversed to feed the recording paper to the duplex-printing path.
During duplex-printing, this feeds the recording paper that are fed in
the duplex paper path to the paper feed roller.
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