I have a client with the following problem. They can from any user do a
cat file | lpr, lpr filename, ... and the lp system acts just like it has
spooled a print job, but nothing prints out. Root can do the exact same
thing but it prints. There are no error messages. Everything looks just
fine. Jobs show they have printed in the log, but nothing is printing?
Any ideas. I have never seen anything like this before?