Brother International HL-3400CN Service Manual - Page 16

controller

Page 16 highlights

HL-3400CN SERVICE MANUAL No. Part Name 1 Upper cover Outline of Functions To act as an upper enclosure and also as a paper tray for printed paper. 2 Control panel To display the status of printer operations and control the printer directly. 3 Front cover 4 Top cover (Paper exit unit) 5 Power button To act as a front enclosure, opened when replacing a toner cartridge or waste toner pack. To exit the printed paper onto the upper cover, acting also as part of the paper tray for printed paper. To be opened when replacing an OPC belt cartridge or Drum cleaner. To operate power-on and off to the printer. (Push for On/Off operation) 6 Power inlet . 7 Rear access cover . 8 Controller box To connect a power supply cable. • To act as a rear enclosure, opened when clearing an internal jam or doing maintenance work. . Space where the main (video controller) PCB is installed. 1-7

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HL-3400CN
SERVICE
MANUAL
No.
Part
Name
Outline
of
Functions
1
Upper
cover
To
act
as
an
upper
enclosure
and
also
as
a
paper
tray
for
printed
paper.
2
Control
panel
To
display
the
status
of
printer
operations
and
control
the
printer
directly.
3
Front
cover
To
act
as
a
front
enclosure,
opened
when
replacing
a
toner
cartridge
or
waste
toner
pack.
4
Top
cover
(Paper
exit
unit)
To
exit
the
printed
paper
onto
the
upper
cover,
acting
also
as
part
of
the
paper
tray
for
printed
paper.
To
be
opened
when
replacing
an
OPC
belt
cartridge
or
Drum
cleaner.
5
Power
button
To
operate
power
-on
and
off
to
the
printer.
(Push
for
On/Off
operation)
6
Power
inlet
To
connect
a
power
supply
cable.
.
7
Rear
access
cover
To
act
as
a
rear
enclosure,
opened
when
clearing
an
internal
jam
or
doing
maintenance
work.
.
8
Controller
box
.
Space
where
the
main
(video
controller)
PCB
is
installed.
1-7