How to *absolutely* kill pending print jobs?

[joe at actionline.com]

On Tue, 22 Aug 2006 11:17:30 -0700, joe wrote
> .
> How can one *absolutely* kill any and all pending print jobs?
> 
> I have tried 'lpstat' and 'cancel spoolfilename'. 
> I have tried 'lpq' and 'lprm' 
> I have tried deleting files in /var/spool/cups and 
> /var/spool/cups/tmp I have tried turning the printer off and back on
> 
> But every time I turn the printer back on, it keeps trying 
> to print a pending print file with a seemingly never-ending 
> flow of *blank* pages.

I finally killed it by doing: ps -ef 
and killing the spool process ... 
but I'm not sure that is the best solution. 

Is that a "safe" method? 
Any better solutions?