
[CONFIDENTIAL]
2RB/2RC/2RD/2RF/3R6
(2-1
)Paper
feeder
..............................................................................................................
3-5
(3)
Descriptions
about
the
major
PWBs
....................................................................................
3-6
(3-1)Main/Engine
PWB
......................................................................................................
3-6
(3-2)High-voltage
PWB
....................................................................................................
3-6
(3-3)Container
relay
PWB
................................................................................................
3-6
(3-4)Unit
relay
PWB
..........................................................................................................
3-6
(3-5)Power
source
PWB
...................................................................................................
3-7
(3-6)Operation
panel
PWB
...............................................................................................
3-7
(4)
Electric
parts
layout
(standard)
..............................................................................................
3-8
(4-1)PWBs
..........................................................................................................................
3-8
(4-2)8ensors
and
Switches
............................................................................................
3-11
(4-3)Motors
.......................................................................................................................
3-13
(4-4)Others
.......................................................................................................................
3-15
(5)
Electric
parts
layout
(option)
.................................................................................................
3-17
(5-1
)Paper
feeder
............................................................................................................
3-17
3-4Drive
system
...............................................................................................................................
3-18
(1)
Drive
system
for
the
unit
........................................................................................................
3-18
(2)
Each
section
drive
.................................................................................................................
3-19
(2-1)Drum
drive
...............................................................................................................
3-19
(2-2)Developer
drive
........................................................................................................
3-19
(2-3)Paper
feed
roller
drive
............................................................................................
3-20
(2-4)Primary
transfer
drive
.............................................................................................
3-20
(2-5)Fuser
roller
drive
......................................................................................................
3-21
(2-6)Eject/Fuser
pressure
release
unit
..........................................................................
3-21
(3)
Drive
location
.........................................................................................................................
3-22
(4)
Drive
unit
................................................................................................................................
3-23
(4-1
)Main
drive
unit
.........................................................................................................
3-23
(4-2)Eject/Fuser
pressure
release
unit
..........................................................................
3-23
3-
5Mechanical
construction
............................................................................................................
3-24
(1
)Paper
feed
and
conveying
section
.......................................................................................
3-24
(1-1)Cassette
paper
feed
and
Conveying
section
........................................................
3-24
(1-2)MP
tray
paper
feed/
paper
conveying
section
.......................................................
3-26
(2)
Optical
section
........................................................................................................................
3-28
(2-1
)Laser
scanner
unit
..................................................................................................
3-28
(3)
Developer
section
.................................................................................................................
3-30
(3-1
)Developer
unit
..........................................................................................................
3-30
(4)
Drum
section
..........................................................................................................................
3-32
(4-1
)Charger
roller
unit
....................................................................................................
3-32
(4-2)Cleaning
...................................................................................................................
3-32
(5)
Transfer
and
separation
section
...........................................................................................
3-34
(5-1
)Primary
transfer
unit
...............................................................................................
3-34
(5-2)Secondary
transfer
unit
...........................................................................................
3-36
(6)
Fuser
section
..........................................................................................................................
3-38
(7)
Eject
and
feedshift
section
....................................................................................................
3-40
(8)
Duplex
conveying
section
....................................................................................................
3-42
(9)
Paper
feeder
(option)
............................................................................................................
3-44
(9-1
)Cassette
paper
feed
section
..................................................................................
3-44
4
Maintenance
4-
1
Precautions
for
the
maintenance
...............................................................................................
4-1
(1
precautions
.............................................................................................................................
4-1
(2)Storage
and
handling
of
the
drum
.........................................................................................
4-1