2-7
Confidential
2.3 Operation of Each Part and Location of Parts
Part name
Operation
Paper pick up roller
Feeds the paper to the separation roller from the paper tray.
Separation roller,
Separation pad
Separates paper fed from the paper tray into single sheets.
Paper feed actuator
(Paper feed sensor)
Detects paper trays (open / closed).
Detects paper jams in paper trays.
Determines whether paper is fed from the paper tray.
Registration front actuator
(Registration front sensor)
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.
Registration roller
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.
Registration rear actuator
(Registration rear sensor)
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.
Heat roller,
Pressure roller
Fuses the toner transferred to paper by heat and pressure,
and feeds paper to the eject roller 1.
Eject/Fuser cover actuator
(Eject/Fuser cover sensor)
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.
Eject roller 1
Feeds the paper ejected from the fuser unit to eject roller 2.
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.
Duplex paper feed roller
Feeds the paper passing through the duplex tray to the
registration roller.
Front cover sensor
Detects open / closed front cover.
Back cover/duplex tray sensor
Detects open / closed back cover or the duplex tray is set.
New toner sensor
When exchange to the new toner cartridge, detects the
kinds of toner and add 1 to the reset of the developing bias
and to the exchange count.
External temperature/humidity
sensor
Detects external temperature and humidity around the
machine.
Pickup clutch
Drives the pick up roller at the timing of paper feeding.
Registration clutch
Controls the activation of the registration roller for the paper
alignment adjustment.
