I think the -l option of lpr might help. It specifies that the print
file is already formatted for the destination and should be sent without
filtering.
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method to bypass cups for printing needed
https://bugs.launchpad.net/bugs/382003
You received this bug notification because you are a member
Examining the information you have given us, this does not appear to be
a bug report so we are closing it and converting it to a question in the
support tracker. We appreciate the difficulties you are facing, but it
would make more sense to raise questions on a support channel like