Cleaning cups queue through ssh [SUSE 8.2]

Hi, My mom has the problem that everytime she turns on her computer, it sends the very same job "automatically" to the printer. So in fact there is no chance to print anything else, because after the first page of that particular doc she used to turn OFF the printer! As I understood, she has to, otherwise gets just copies of that previous doc... I guess she sent the same job few times to the printer and that's why its coming constantly; anyway turning off the printer helps only to save paper, but seemingly does not solve the situation :( Please any ideas to make her comp forget about ALL the cups-jobs?! I have ssh access to that comp; anything else she could do locally. Thank you, Pelibali