Paper Transportation System; Outline; Structure Of Paper Transportation System - Brother HL-3450CN Service Manual

1.6

Paper Transportation System

1.6.1

Outline

This printer employs automatic paper feeding from the media cassette.
When toner images are formed on the transfer drum through the operations of the print
system and transfer system, paper is fed by the pick-up roller and transported to the
register roller. The transported paper is further transported to the transfer, fuser and
exit parts by the register roller synchronizing with the rotation of the transfer drum.
1.6.2

Structure of paper transportation system

The paper transportation system consists of the following parts;
c
Media cassette:
d
Paper pick-up roller:
e
Register roller:
f
Transfer part:
g
Paper discharger unit:
h
Fusing unit:
i
Paper exit unit:
j
Paper exit roller:
i
h
g
f
e
d
Case to accommodate paper to be fed automatically.
Roller to feed sheets of paper one by one, preventing
multi-feed.
Roller to transport papers synchronized with the
transfer drum.
Print processing part consisting of transfer drum and
transfer roller to transfer the toner image onto the
paper.
Corona generator to generate AC corona for
separating paper from the transfer drum.
Mechanical part to fuse the toner image with heat
rollers and fix it on the paper.
Mechanical part to exit the fused paper from the
printer.
Roller to feed paper from the printer.
j
c
Fig. 4-25
4-25
HL-3450CN SERVICE MANUAL
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