Well, you could either have the user process to switch to
sidadm to issue the print command, perhaps a simple script to be called, owned by sidadm and permissions rwsr-xr-x with a chmod 4755
Flip it the other way and you can make account
sidadm privileged. You could install sudo from
Sudo Main Page to grant you the privilege or, depending on your operating system, there is probably a way to make
sidadm part of the print admin group. Have a read of the manual pages for the
cancel command or
qcan, or whatever command you wish to execute to cancel the requests.
I hope that this helps.
Robin
Liverpool/Blackburn
UK