11-02-2006
Windows Terminal Emulators
I have been using NetTerm on various Windows flavors for a while and have just run into a problem with printer passthru (transparent printing) that I can analyse but not resolve.
The setup is a Epson TM60 POS Label Printer connected XON/XOFF via COM1 on a Win98SE system. This is controlled utilising ESC/POS commands to produce barcodes.
The problem is that the ALL the NUL codes (ASCII 00) in the commands are dropped before they get to the printer ie:
*set printable area motion units in page mode
move x"1B570000000070019F00" to tm60-line
write tm60-line no control.
results in 1B5770019F at the sticky end of TCP/IP, Windows, NetTerm, printer.
NetTerm is configured to print direct to the port (not using the windows driver/spooler) so my query is - WHAT IS STEALING THE NULS ??? -
BTW If I hang the TM60 off a RS232 port on the Server there are no probs.
The problem is not hardware related - several printers, Win systems tested.
Any thoughts anyone???
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LEARN ABOUT HPUX
tsm.lpadmin
tsm.lpadmin(1M) tsm.lpadmin(1M)
NAME
tsm.lpadmin - add or remove a printer for use with tsm(1)
SYNOPSIS
printer model
printer
DESCRIPTION
is used to add (or remove) a printer to the LP spooling system when the printer is connected to the system through a terminal running the
Terminal Session Manager (see tsm(1)). is a shell script that uses in the normal way but also creates a named pipe to which LP output is
directed (see lpadmin(1)). This named pipe is opened by TSM and data flowing from it is sent to the printer through the terminal.
Options
recognizes the following options:
Names a printer to be created with an associated pipe.
If is used, must also be specified.
Selects a model interface program for
printer. model is one of the model interface names supplied with the LP software (see the Models topic in the lpad-
min(1)) manual entry. If is used, must also be specified.
Removes printer from the LP system. No other options are allowed with
Restrictions
To use you must be user or
AUTHOR
was developed by HP.
FILES
SEE ALSO
lpadmin(1M), tsm(1).
tsm.lpadmin(1M)