Operation Of Each Part And Location Of Parts - Brother HLL3290CDW Service Manual

2.3

Operation of Each Part and Location of Parts

Part name
T1 separation roller,
T1 separation pad ASSY
T1 paper feed actuator
(T1 paper feed sensor)
Registration front actuator
(Registration front sensor)
Registration roller
Registration rear actuator
(Registration rear sensor)
Belt unit
Heat roller,
Pressure roller
Eject actuator
(Eject sensor)/
Fuser cover actuator
(Fuser cover sensor)
Eject roller 1
Eject roller 2
Eject roller 3
Duplex paper feed roller
Belt cleaning roller
Top cover sensor
Back cover sensor
MP paper pick-up roller
MP separation roller,
MP separation pad
MP paper empty actuator
(MP paper empty sensor)
Separates paper fed from the T1 into single sheets.
Detects the T1 (open / closed).
Detects paper jams in the T1.
Determines whether paper is fed from the T1.
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 T1.
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 belt unit.
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.
Feeds the paper to the drum unit and transfers toner on
the paper.
Fuses the toner transferred to paper by heat and pressure,
and feeds paper to the eject roller 1.
Detects whether or not paper is ejected from the fuser unit.
In the case of the 2-sided printing, detects the rear edge of
paper and adjusts the timing of the eject roller 2 and 3
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.
Feeds the paper to the eject roller 3. In the case of the 2-
sided printing, after the front of the sheet is printed and the
paper is fed to the eject roller 3 up to a certain point, the
eject roller 2 rotates conversely and feeds the paper fed
from the eject roller 3 to the duplex tray.
Ejects 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, the eject roller 3
rotates conversely, and the paper is fed to the eject roller 2.
Feeds the paper passing through the duplex tray to the
registration roller
Feeds the collected waste toner to the belt unit.
Detects open / closed top cover.
Detects open / closed back cover.
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.
2-11
Operation
Confidential