Brother International HL 1850 Service Manual - Page 92
Overview, Printing, Mechanism
UPC - 012502603900
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CHAPTER 3 THEORY OF OPERATION 2. MECHANICS 2.1 Overview of Printing Mechanism Heat roller Second eject roller Rear cover Duplex outer guide 1 1 isL2) Paper guide First eject roller FIXING UNIT Pressure roller DUPLEX TRAY Corona wire LASER UNIT •0. 4 Scanner motor Blade Supply roller O T 4 DRUM UNIT Toner sensor Paper feed pinch roller Paper feed roller First feed pinch roller MP pick-up roller First feed roller Paper pick-up roller PAPER CASSETTE Paper Cleaner Photosensitive drum Pressure plate Development roller Separation pad Front registration sensor lever Transfer roller Fig. 3-18 Rear registration sensor lever Cassette pressure roller 3-18
CHAPTER
3
THEORY
OF
OPERATION
2.
MECHANICS
2.1
Overview
of
Printing
Mechanism
Heat
roller
Corona
wire
Scanner
motor
Second
eject
roller
Rear
cover
1
Duplex
outer
guide
1
Paper
guide
First
eject
roller
FIXING
UNIT
Pressure
roller
DUPLEX
TRAY
PAPER
CASSETTE
Paper
is
L2)
•0.
LASER
UNIT
Photosensitive
drum
Cleaner
Development
roller
Transfer
roller
Fig.
3-18
Blade
Supply
roller
DRUM
UNIT
Toner
sensor
Paper
feed
pinch
roller
Paper
feed
roller
First
feed
pinch
roller
O
4
T
MP
pick-up
roller
4
First
feed
roller
Paper
pick-up
roller
Cassette
pressure
roller
Pressure
plate
Separation
pad
Front
registration
sensor
lever
Rear
registration
sensor
lever
3-18