Operation Of Each Part - Brother DCP-7080 Service Manual

2.3 Operation of Each Part

Part name
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
Front cover sensor
Back cover/duplex tray sensor Detects open / closed back cover or the duplex tray is set.
Document pick-up roller
Document separate roller
ADF separation pad
Document detection actuator
(Document detection sensor)
First / Second side document
scanning position actuator
(Document scanning position
sensor)
Document ejection roller
ASSY
ADF cover actuator
(ADF cover sensor)
Feeds paper from the paper tray to the separation roller.
Separates paper fed from the paper tray into single sheets.
Detects the paper tray (open / closed).
Detects paper in the paper tray.
Detects paper jams in the front section of the machine.
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 inclination of the paper when the paper makes
contact with the stopped registration roller. After the
correction, it rotates to feed the paper to the feeding path.
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 identify the paper size.
Fuses the toner transferred to paper by heat and pressure,
and feeds paper to the eject roller 1.
Determines whether paper is ejected from the fuser unit.
Detects the rear edge of the paper in duplex printing mode to
adjust the turn-over timing of the eject roller 2.
Feeds the paper ejected from the fuser unit to eject roller 2.
Ejects paper to the face-down output tray.
During the duplex printing, the eject roller 2 rotates conversely
and feeds paper to the duplex tray after the paper has been
fed from the eject roller 2 with the second side printed.
Feeds paper pass through the duplex tray to the registration
roller.
Detects open front cover.
Pulls in the document from the ADF document support.
Separates the documents fed from the ADF document support
into single sheets.
Detects whether a document is set in the ADF.
Detects the scanning start position (first side / second side).
Detects a document jam in the ADF.
Feeds a document to the document cover.
Detects whether the ADF cover is open or closed.
2-8
Operation
Confidential