turning off printer kicks off connection...

Hi hpoj folks,

since some time I am experiencing a strange problem: after turning off 
the printer and turning it on again, I can't print anymore. The 
connection is not there anymore.

e.g.:
david@phoenix:~$ xojpanel
Failed to open PML on device "mlc:usb:PSC_2100_Series"!

Usually I can recover by restarting the connection by hand executing 
'ptal-init start' as root. But on some occasions even this is not enough 
. Then restarting the cups driver doesn't help either and I have to 
reboot the machine... :-(

Where should I hunt for the problem?

Thanks,
David



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