Okay, here's a real on-topic question, for a change! :-)

We have an HP serial printer (2933A) that is occasionally printing
garbage characters.  There is no rhyme nor reason to it, just whenever
it feels like it.  The set-up is: Series 948 to DTC to multiplexer to
radio modem to microwave radio link to remote radio modem to remote
multiplexer to remote printer.  My question is "How can I debug this?"

Any suggestions are welcome (except for unnatural acts to be performed
on myself).  Thanks.

Jim Phillips                            Manager of Information Systems
E-Mail: [log in to unmask]      Therm-O-Link, Inc.
Phone: (330) 527-2124                   P. O. Box 285
  Fax: (330) 527-2123                   Garrettsville, Ohio  44231