Lantronix ETS Reference Manual - page 156
Troubleshooting Macintosh Printing
AppleTalk Host Setup
10-4
Note:
See your printer’s documentation for more information on printer configuration
and any printer-specific errors.
10.3.1.1 Error Messages
Macintosh print spoolers (for example, PrintMonitor or LaserSpool) typically report errors, possibly via a
“distressed printer” icon in the upper right part of the screen. If you see a similar indication on your screen,
open the spooler window and check for an error message from the printer.
If you can connect to the printer service on the ETS via LAT or TCP/IP, try typing some keys to the printer
and pressing Return. The printer will typically respond with a PostScript error message like that shown in
the following figure.
Figure 10-4: PostScript Error Message
If the message is legible, the printer is apparently receiving and sending data correctly. Press Ctrl-D to
signal the end of job (and clear the error condition), and then disconnect from the service without typing
any more data.
Note:
Be sure to check that any serial adapters conform to the pinouts shown in your
Installation Guide.
Unreadable error mes-
sage on the printer, or
serial errors on the
Show Port Counters
display.
The baud/parity set-
tings don’t agree.
Many printers can be configured via PostScript as well as
by switches on the printer itself. PostScript configuration
takes precedence over the switches. If you are unsure of
the current saved setup, check your printer manual for a
way to force the printer to obey the switch settings. This
typically involves switching the printer to LocalTalk mode
for a minute and then back to serial mode.
A readable error that
says something like
“Unknown command
There may be a flow
control problem.
If the ETS never sees the printer flow control, it may over-
run the printer buffer resulting in corrupt data.
Many printers can be configured via PostScript as well as
by switches on the printer itself. If you are unsure of the
current saved setup, check your printer manual for a way
to force the printer to obey the switch settings. This typi-
cally involves switching the printer to LocalTalk mode for
a minute and then back to serial mode.
The first print job
prints fine, but other
print jobs are garbled
or lost.
The printer cannot dis-
tinguish between jobs.
Make sure PostScript is enabled on the ETS service—this
ensures that the ETS will not start a new job before the last
job is finished. It will force a Ctrl-D to the printer before
beginning a new job, and wait for an acknowledgment
before continuing.
%% Unknown command
%% Flushing to end of job.
Table 10-1: Troubleshooting Macintosh Printing, cont.
Problem
Possible Cause
Explanation/Remedy