I have installed iPrint client and printer on a shared computer with
unsecure access. Printer is setup with high security, forcing https and
I would like to give printing options only to 1 user, but the iPrint client
seems to remember the user/password for this printer. After removing the
password, next printjob asks for user/password and stores it again, so
anybody can use this printer afterwards.

Is there any option to make the iPrint client ask any time for user/password
for every printjob?