[Wylug-help] Printer seems to be printing out raw postscript

[linux at felixu.com]

Hi

I have a Debian unstable system connected to an HP DeskJet 6540 by
USB.  I run CUPS and use the hpijs driver.

Since about a week ago, it has started to spew out rubbish - I'm
guessing it's raw ps but don't really know.  The CUPS test page output
starts with 

%PDF-1.3
%1234
% This file was generated by pdftopdf

Just for something to try, I've re-configured the CUPS printer, done
dpkg-reconfigure on things like cups, hpijs, hpijs-ppds.  Not sure
where to go next.

Any ideas welcome.

Ta,

Felix.