RS-232C/RS-422A Protocol
C-9
RS-232C/RS-422A Protocol
A protocol is a set of rules the computer follows in sending data to the
printer. The RS-232C/RS-422A parameters are stored in battery backed-up
memory. They are indicated on the status printout. They can be changed by
the FRPO (firmware reprogram) command described in the
Programming Manual provided on the CD-ROM supplied with the
printer. The parameters and their identification codes are given below.
H1: Baud rate
The factory setting is 9600 baud.
H2: Data bits
7 or 8, factory-set to 8.
H3: Stop bits
1 or 2, factory-set to 1.
H4: Parity
The factory setting is “None” (0 on t he status printout).
Parameter value Baud rate
12 1200
24 2400
48 4800
96 9600
19 19200
38 38400
57 57600
11 115200
Parameter value Meaning
0None
1Odd
2Even
3Ignore