Printing stopped working, after working intermittently.  It turned out to 
be a permissions problem:

8.1 (devfs=nomount):
[13:42 root@penguin:/home/peter]# ll /dev/lp0
crw-rw----    1 root     lp         6,   0 Aug 30 10:54 /dev/lp0

and this was the fix...
[13:42 root@penguin:/home/peter]# chmod a+rw /dev/lp0

Cooker's /dev/lp0 points to /dev/printers/0, which has similar daft 
permissions.

I didn't spot any warnings about inadequate permissions.
-- 
Peter Ruskin, Wrexham, Wales.           rm -rf /bin/laden sharon
Registered Linux User No. 219434 ( see http://counter.li.org/ ).
Mandrake Linux release 8.1 (Vitamin) for i586,  kernel 
2.4.8-26mdk-pnr-win4lin.
XFree86 4.1.0, patch level 17mdk.  KDE: 2.2.1.  Qt: 2.3.1.  Uptime: 19 min

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