2-6
Confidential
2.3
Operation of each part
Part name
Operation
Pick-up roller
Feed the paper from the paper tray.
Separation roller and
Separation pad
Separate into single sheet from the paper tray.
Paper edge actuator
(HL-2250DN/2270DW only)
Detect the rear edge of paper, and identify the paper size.
Registration front actuator
Detect the front edge of paper, and control the drive of
registration roller.
When feeding from the manual feed slot, detect the passage
of paper.
Detect the paper jam of front part.
Registration roller
When the front edge of the paper hit the stopped registration
roller and the inclination of the paper is corrected.
Registration rear actuator
Detect the passage of paper and adjust the starting position
for writing on a sheet of paper.
When the duplex printing, detect the rear edge of paper and
adjust the timing of eject roller 2 switching.
Transfer roller
By applying a minus charge to the transfer roller, the toner
adhered to the exposure drum is transferred to paper, and
feed the paper to the fuser unit.
Heat roller and Pressure roller The toner transferred on paper being fused by heat and
pressure, and feed the paper to the eject roller 1.
Paper eject actuator
Detect whether or not paper is ejected from the fuser unit.
Eject roller 1
Feed the paper ejected from the fuser unit to the eject roller 2.
Eject roller 2
Eject the paper to the face-down output tray.
When the duplex printing, after the paper is fed from the eject
roller 2 with the front of sheet printed, the eject roller 2 rotates
conversely and feed the paper to the duplex tray.
DX feed roller
(HL-2240D/2250DN/2270DW
only)
Feed the paper passed in the duplex tray to the registration
roller.
