
4 - 1
TM
CHAP. 4
TECHN…
TECHNICAL BACKGROUND
BLOCK DIAGRAM
Fig. 16 Circuit block diagram
interface
Data
(from host computer)
Driver
Gate array
CPU
EPROM
32KB
RAM 8KB
Driver
Paper feed
motor
Detectors
Carriage motor
Print head
Peripheral unit
panel
board
out
detector
interface
Control board
Printer
mechanism
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