How to *absolutely* kill pending print jobs?

[joe at actionline.com]

.
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. 

This is ridiculous.  Surely there must be some way (other than 
reboot) to *absolutely* kill, flush, delete, purge, and totally 
destroy and wipe-out any and all print files lurking in queue.