Genicom MatrixPrinter LA36 - Manual (Page 17)

1-6
(3) Lower cover assembly
Figure 1.4 Printer lower assembly (LA36N)
a. Bottom cover
The bottom cover supports the printer mechanism.
b. Printer control board
The printer control board controls the host interface, control panel, and printing mechanism, using an MPU
and an LSI. Memory holds resident character patterns and firmware, including resident emulation pro-
grams. This board has drivers and receivers for other components. Sensor receivers convert signals from
sensors. Drivers supply power to motors, print head wires, and other components. It also has a Centronics
parallel interface controller and RS-423 serial interface controller.
c. Power supply
The power supply at the front of the printer outputs a constant voltage, regardless of fluctuation in input AC
line voltage, between 100 and 120 VAC or 220 and 240 VAC. It includes an AC line switch and noise
filter.
Printer control board
Power supply
Bottom cover