Operation Of Each Part And Location Of Parts - Brother DCP-7090 Service Manual

2.3 Operation of Each Part and Location of Parts

Part name
Paper pick up roller
Separation roller,
Separation pad
Paper feed actuator
(Paper feed sensor)
Registration front actuator
(Registration front sensor)
Registration roller
Registration rear actuator
(Registration rear sensor)
Heat roller,
Pressure roller
Eject actuator
(Eject sensor)
Eject roller 1
Eject roller 2
Duplex paper feed roller
Back cover/duplex tray sensor
Front cover sensor
Paper empty actuator
MP paper pick-up roller
MP separation roller,
MP separation pad
MP paper empty actuator
(MP paper empty sensor)
Document pick-up roller
Document separate roller,
ADF separation pad
Document detection actuator
(Document detection sensor)
Document scanning position
actuator
(Document scanning position
sensor)
Document eject roller
ADF cover sensor
Feeds the paper to the separation roller from the paper tray.
Separates paper fed from the paper tray into single sheets.
Detects paper trays (open / closed).
Detects paper jams in paper trays.
Determines whether paper is fed from the paper tray.
Detects the front edge of the paper to control the
registration roller drive.
Detects paper jams in the front section of the machine.
Determines whether paper is fed from the paper tray.
Corrects the paper alignment when the paper makes
contact with the stopped registration roller. After the
correction, it rotates to feed the paper to the process.
Detects paper pass and adjusts the writing start position for
the paper.
Detects paper jams in the front or center section of the
machine.
Detects the rear edge of the paper to determine the paper
size.
Fuses the toner transferred to paper by heat and pressure,
and feeds paper to the eject roller 1.
Detect whether or not paper is ejected from the fuser unit.
In the case of the 2-sided printing, detect the rear edge of
paper and adjust the timing of the eject roller 2 switching.
Detects paper jam in the rear section of the machine.
Detects open fuser cover.
Feeds the paper ejected from the fuser unit to eject roller 2.
Eject the paper to the face-down output tray. In the case of
the 2-sided printing, after the front of the sheet is printed
and the paper is fed up to a certain point, eject roller 2
rotates conversely, and the paper is fed to the duplex tray.
Feeds the paper passing through the duplex tray to the
registration roller.
Detects open / closed back cover or the duplex tray is set.
Detects open / closed front cover.
Detects the paper in the paper tray 1.
Detects paper jams in the paper tray 1.
Feeds paper from the MP tray to the MP separation roller.
Separates the paper fed from the MP tray into single
sheets.
Detects the paper in the MP tray.
Detects paper jams in the MP tray.
Feeds document from the document tray.
Separates the document fed from the document tray into
single sheets.
Detects whether a document is set in the ADF.
Detects the document scanning start position.
Detects a document jam in the ADF.
Feeds the document to the output tray.
Detects open / closed ADF cover.
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Operation
Confidential