Technical Description: Control Electronics
Issue 2
55
Part No. 306-0430-102
Control Electronics
General
(
1
) PSU module
(
2
) CPU board
(
3
) I/O board
(
4
) Ink pump motor driver board
2
3
1
4
Figure 22 Control Electronics
The control electronics in 400 series printers is based on a common Central Processing Unit (CPU) board (
2
),
and an INPUT/OUTPUT (I/O) board (
3
).
For the 400 series printer to operate as designed, it has three other electronic component parts. These are the
modular power supply (PSU) (
1
), the Liquid Crystal Display (LCD) and the integral keypad. The PSU connects
directly to the I/O board, but the LCD and KEYPAD connect directly to the CPU. Note that the LCD backlight
inverter connects to the I/O board.
The printer can be interrogated over a serial link in order to assess performance. This serial link can be a direct
RS232 connection to a local personal computer or via a MODEM and the telephone network.
To Next Page
Loading...
