Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90057)

Terminal and Printer Profiles
What is a Profile
Chapter 7
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In addition, data transmission errors can be detected (but not corrected) using parity
checking.
Printer Type 22
Use printer type 22 for local spooled printers. These are asynchronous printers that can
use the MPE/iX spooler, but not with modems.
Printer type 22 supports the same data protection methods (the XON/XOFF protocol and
status checking) as printer type 21, except for parity checking.
Printer Type 26
Use printer type 26 for remote spooled printers connected to a network. These are
printers that can be spooled and connected through a modem to a statistical multiplexer
or printers connected to a PAD. Printer type 26 builds on printer type 22, with additional
features to cope with delays that occur over a buffered connection.
The status request is sent and the time begins. If there is no reply, the timer is reset.
This is repeated 10 times.
If the status request detects an error condition, for example the printer runs out of
paper, a system console message is displayed and the retry is done only one more time. If
there is no reply or an error occurs, the connection is closed and the spooler stopped.
The XOFF timer is also retried 10 times. After the last entry, the connection shuts down
and data is refused. In addition to status request and XOFF changes, all closed
connection requests from the computer are not acted upon for 10 seconds. This avoids
having to reestablish the remote connection if another spoolfile becomes ready to print
before the 10 second wait expires.