Comment 5 for bug 283811

I have this problem too, with a printer that does require authentication (attached to a remote windows machine on the network). The username and password are entered already in the printers.conf file, so no prompt should be needed; but I still get the dialog box saying "Can't prompt ... Printing Failed". The problem (as above) seems to be an incorrectly added line "AuthInfoRequired..."

Here is the relevant snippet from /etc/cups/printers.conf in intrepid:

<Printer Canon>
AuthInfoRequired username,password
Info Canon_inkjet_on_home_network
Location
DeviceURI smb://SomeUser:TopSecretPassword@/server/Canon-i950
State Idle
StateTime 1227476815
Accepting Yes
Shared Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy retry-job
</Printer>

The corresponding snippet in gutsy was essentially the same, except that the "AuthInfoRequired" line was absent. Commenting out the AuthInfoRequired line makes the printing work again.