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Chapter 3. Printronix P300/P600 Emulation GEK-00029B
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CHAPTER 3.
PRINTRONIX P300/P600 EMULATION
INTRODUCTION
This printer is plug-compatible with the Printronix 300/600 family of
line printers. It accepts and acts upon all control codes utilized by
this family of printers in a manner that is as functionally equivalent
as possible.
The following is a list of the control codes (and their functions)
utilized by the Printronix printer. Any control codes not listed will be
discarded.
When changing from the ANSI emulation to the P Series emulation.
the ANSI vertical tab table does not transfer and the horizontal tab
table set In the ANSI mode is not available. Ali menu parameters set
before changing emulations will carry over except for these.
CONTROL CODES
ACK Line at 8 LPI (06H):
A received
<
ACK
>
anywhere on the line causes
the entire line to be printed at 8 lpi. Since this code is momentary, it
will not affect subsequent lines. Each line must receive an <ACK>
code for the switch to 8 lpi.
BEL Bell Code (07H):
A <BEL> code received at the interface causes the
beeper to. sound for approximately 1 second.
BS Elongated Character Line (08H):
A <BS> code anywhere on the line
causes that line to be printed at double height. Standard- and
double-high characters cannot be mixed on the same line.
CR Carriage Return Slew Zero or Edit Mode (ODH):
In the edit mode,
i.e., with the P300/600 Emulation Strap 01 OUT, a <CR> will
left-justify the line in the buffer, but no printing will occur. The next
line of data received can then modify the line. With the strap IN, the 0
slew mode is invoked. In this mode, the line modification feature is
deleted and a <CR> is treated in the same manner as in the ANSI
protocol. The print control, DEFINE CR, with the definition set to
CR=CR+LF converts a carriage return to a linefeed. With the
definition set to CR=CR, the printer ignores received carriage returns.
DC1 Ready/Select (11H):
A received <DC1> can be used to remotely
select the printer in both serial and parallel interfaces. A serial
interface protocol can be selected to transmit a <DC1> code to inform
the host of a ready condition. See Appendix G for strap information.
NOTE
If a <DC1> or <DC3> control character is received with strap 8
in GenPrtOpts set to OUT, the control is treated as a VFU
Channel Command. See Appendix G, General Printer Options,
Group 2.