Brother International HL-3400CN Service Manual - Page 89
Temperature
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CHAPTER 4 STRUCTURE OF SYSTEM COMPONENTS (1) Control Block Diagram (Refer to Fig.4-33.) No. Name Function 1 Sequence Control To control the sequence of printer operations. 2 Temperature Control To control the temperature of the fixing unit. 3 Toner Empty Sensing Control To detect the toner empty status of each toner cartridge. 4 Control Panel Control To control the control panel indications and the operational signals. 5 Error Processing Control 6 Interface Control To sense errors occurring in the printer and control the stop procedures. To control the receipt and transmission of the interface signals from the external controller. 7 Laser Control To control laser scanning and laser power. 4-38
CHAPTER
4
STRUCTURE
OF
SYSTEM
COMPONENTS
(1)
Control
Block
Diagram
(Refer
to
Fig.4-33.)
No.
Name
Function
1
Sequence
Control
To
control
the
sequence
of
printer
operations.
2
Temperature
Control
To
control
the
temperature
of
the
fixing
unit.
3
Toner
Empty
Sensing
Control
To
detect
the
toner
empty
status
of
each
toner
cartridge.
4
Control
Panel
Control
To
control
the
control
panel
indications
and
the
operational
signals.
5
Error
Processing
Control
To
sense
errors
occurring
in
the
printer
and
control
the
stop
procedures.
6
Interface
Control
To
control
the
receipt
and
transmission
of
the
interface
signals
from
the
external
controller.
7
Laser
Control
To
control
laser
scanning
and
laser
power.
4-38