There use to be 7318 S20 that could do reverse telnet protocol to a printer but it was through the terminal communication device that is no longer marketed by IBM...
Some of the terminal servers....like lantronix etc...use RTEL to do their printing
from a special write backend...but that is not doing the actual reverse telnet
you are trying to achieve...I don't think?
Most of the standard remote printers for Rs6000 use lpd/lpr to do this....
Lantronix provided
the reverse telnet backend to work with AIX...perhaps there is one for the Cisco?
You can ask them about?
-------------------------------
Lantronix info maybe it will give you an idea:
Print from AIX using RTEL backend.
RTEL backend filter
The RTEL backend filter is a program that interfaces with the
host-based spooling system. It receives data from the spooling
system and sends the data to the ETS. The advantages of the
backend filter are that the banner page is printed at the front of a
job, multiple copies can be printed, and simple reformatting such as
to conversion and tab expansion can be performed. However, the
backend filter does not support any complicated output filtering or
conversions.
RTEL named pipe interface
The RTEL Pipe Daemon (RTELPD) process uses a UNIX named
pipe as its interface to the host. This allows any host- or
user-supplied backend filter to be used for printing. Any data that is
sent into the pipe is simply moved to the ETS. However, the data
flows one way from the host system to the ETS, and this approach
does require one RTELPD daemon process for each print queue
configured.
-------------------
This is for Lantronix....print server........