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5.3.1 Printed Circuit Boards and Basic Configuration
Table 5.3.1 lists the printed circuit boards used in this printer.
Alias of PC board
Main board HGC07**
Control panel board
GAO99BA
Control panel board
LCD02BA
Power supply board
KA0071(100V)
Power supply board
KA0076(200V)
Figure 5.3.1 shows the basic configuration of this printer.
5.3.1.1 Outline of Printed Circuit Boards
Main board (HGC07**)
This printed circuit board consists of three basic blocks: the main control circuit, interface circuit, and drive circuit blocks.
The main board has the following ten connectors:
No.
Name
１
Centronics connector
２
Control panel connector
３
Power supply connector
４
Carriage board connector
Drawing number
KA21206-B**X
CA21264-B91X
CA21323-B61X
KA02951-0071
KA02951-0076
（
X: PC board EC level
Switches and LCD/lamps
( GAO99BA)
(
LCD02BA
)
Main board (HGC07**)
Main control circuit
Motor and head drive circuits
Interface driver/receiver circuit
Figure 5.3.1 Basic configuration
Abbreviation
IFCEN
CNOP
CNPW
CNHD3
Major functions
Main control circuit, drive circuit, interface
driver/receiver circuit
Serial/parallel converter LSI, display
lamps, control switches
Serial/parallel converter LSI, display
LCD/lamps, control switches
+40 V and +5 V power supply
+40V and +5 V power supply
Table 5.3.1 Printed circuit boards
）
Cut sheet feeder (*1)
PWSTOP
*1: The cut sheet feeder is an option.
*2: The tractor kit is an option.
Connection destination
Host computer
Control panel board
Power supply board
Multi-sensor for detection of left and right ends
142
Tractor kit (*2)
Power supply board
( KA0071/KA0076)
+40 V/+5V
(2- transofrmer
power supply)
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