On Sat, 21 Jun 2014, Matthias Apitz wrote:

Thanks to Hans, the printing works now. But is terrible slow:

printing a 2.9 MByte Postscript file (containing a bit map, because it
was concerted from a PDF file) gives:

$ ls -l fra.ps
-rw-r--r--  1 guru  wheel  2951274 19 jun 17:44 fra.ps

$ date ; cat fra.ps > /dev/unlpt0 ; date ; cat fra.ps > /dev/ulpt0 ; date
Sat Jun 21 11:43:12 CEST 2014
Sat Jun 21 11:58:48 CEST 2014
Sat Jun 21 12:14:51 CEST 2014

i.e. takes around 15 minutes, regardeless of the used device, 3.2K per
second.

USB in the slow mode? Also, that twenty-year-old printer is probably not that fast at rendering PostScript, and likely memory-limited besides. Could be a combination of all three.

Converting the PostScript to PCL at the same resultion and sending that could help to compare. If it's the same speed, blame the USB adapter for sending slowly. If it's faster, blame the onboard PS interpreter for interpreting slowly.
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