Printing Problems - Lantronix EPS1 Installation Manual

Troubleshooting
B.5 Printing Problems
Area to Check
Physical connections
Service characteristics
The IP address
Queue Status and Port
counters
B.5.1 PostScript Problems
PostScript printers will silently abort jobs if they detect an error.
Area to Check
The EPS is communicating
with the printer
The printer is configured to
use 8-bit characters
Table B-6: General Printing Problems
Explanation
To test a non-PostScript printer, use the Test Port EPS Count 100
command. This command will send 100 lines of test data out the
parallel port so you can see if the printer is receiving data.
Use the Show Service Local Characteristics command from the
EPS Local> prompt to see if the desired service is available and to
verify that the appropriate protocols are enabled on the service.
The IP address must be unique on the network. Many problems
can occur when there are duplicate IP addresses.
Use the Monitor Queue command to ensure queue entries appear
in the job list.
Use the Monitor Port n Counters command to verify that the
counter is incrementing with each job. If it is not, verify the
connection between the EPS and the printer.
Table B-7: PostScript Troubleshooting
Explanation
To test a PostScript printer, use the Test Port n PostScript
Count 2 command. This command will send 2 pages of
PostScript data out the parallel port. Watch the indicators on the
printer to verify that the EPS is communicating with the printer.
If the printer is capable of bidirectional communication, use the
Test Service EPS_xxxxxx_PS PostScript Count 5 command.
This will transfer data both to and from the printer.
Autoselection must be disabled and the printer must be
configured as a PostScript printer for this test to succeed.
If special characters or bitmaps are not printing correctly, the
printer may be incorrectly configured to use 7-bit characters.

Printing Problems

B-5