P 190
12
D0 D1 D2 BAUD
0 0 1 300
1 0 1 600
1 1 1 1200
0 1 1 2400
0 0 0 4800
1 0 0 9600
All the other combinations select a speed of 1200 bauds.
D3 = 1: flag-type transmission protocol. When the print buffer is full, the printer sends a low level on the
RTS signal, which interrupts transmission; when the buffer is able to receive further data, the level of
the RTS signal is then changed to 1.
D3 = 0: XON/OFF type transmission protocol. When the print buffer is full, the printer sends an
XON$13 (DC3) which interrupts transmission; when the buffer is able to receive further data, the
command XON$11 (DC1) is transmitted.
D4 = 1: when the PRINT key is pressed, nothing happens.
D4 = 0: when the PRINT key is pressed, the signal $0D (CR) is transmitted to the TD pin, if the serial
interface has been configured.
D5, D6, D7: the selection of these bits results in the serial being configured with the transmission
format listed in the table below:
D7 D6 D5 Format
1 1 1 8 bits without parity and 1 stop bit
0 1 1 8 even parity bits and 1 stop bit
0 1 0 8 odd parity bits and 1 stop bit
1 1 0 7 bits without parity and 1 stop bit
1 0 1 7 even parity bits and 1 stop bit
1 0 0 7 odd parity bits and 1 stop bit.
Remember that, in order to configure the printer in serial mode, it is necessary to shortcircuit the signal
S-EN to ground on connector J1.
RESET (input): card controller reset, active at a low level. Resetting initializes the printer’s parameters
and has the following effects:
erasure of the line buffer and printer buffer;
reading of the S-EN pin of J1 for serial or parallel configuration;
printing of the self-test if the PRINT key is pressed;
functionality check of the option cards installed, if any.
INSTALLATION and USE
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