Operation Manual

RS-232C Protocol
C-7
C.3 RS-232C Protocol
A protocol is a set of rules the computer follows in sending data to the
printer. They are indicated on the status page. Parameters can be changed
from the operator panel. See Changing Serial Interface Modes on page
1-42. The parameters and their identification codes are given below.
H1: Baud rate
The factory default setting is 9600 baud.
Some computers may not be compatible with a baud rate of 115200 bps.
If you set the baud rate to 115200 and communication problems occur,
lower the baud rate.
H2: Data bits
7 or 8; the factory default setting is 8.
H3: Stop bits
1 or 2; the factory default setting is 1.
H4: Parity
The factory default setting is None (0 on the status printout).
Parameter value Baud rate
12 1200
24 2400
48 4800
96 9600
19 19200
38 38400
57 57600
11 115200
Note
Parameter value Meaning
0None
1Odd
2Even
3Ignore