Cancelling print job

[ctlmd]

This seems like an easy one. How do you cancel a print job when it won't cancel using printconf-gui / print manager. It worked for one print job but then just kept going for a second in the que when I put in 'Cancel Documents', although it seemed to take the request. The status just says Pending (?).

[Hayl]

lpq <-- this command prints the print job numbers

lprm <print job number> <-- this command removes print jobs from the queue

[ctlmd]

Thought it was an easy one.