Where are Authentication Credentials for Canon Image Runner Advanced 4245 Printer

Question

My office has a Canon Image Runner Advanced 4245 Printer, I am trying to set up printing to. I know the IP address, host name, port and my user credentials (username,and password). My OS is Ubuntu Mate 16.04. I also have another machine with Unity.

I found the appropriate PPD file for the printer, and installed, but I see no place to insert my credentials. (The PPD files are copyrighted, but redistributable, with license in header.)

I looked all over printer options for a place to insert Authentication credentials, but I cant find that either.

I went over to the policies section, and clicked on Authenticate, and applied that. At no point, was I asked to authenticate. Nor did I see a place where I could provide Authentications.

per the suggestions of some google-fu, I looked at

~$ sudo vim /etc/cups/printers.conf

for lines containing Authentication. No such lines were present in that file. I tried using the CUPS interface http://localhost:631 but I still don't see where to provide authentication details.

Can someone point me to the place where I can provide Authentication credentials to this printer? It will work, if I can figure out how to Authenticate.

Solution

You need to change a file as shown below, but before type

sudo service cups stop

/etc/cups/printers.conf is the one you need. Underneath the printer

# Printer configuration file for ...
# Written by cupsd on ...
<DefaultPrinter canon>
AuthInfoRequired username,password
Info Canon ...
...

The AuthInfoRequired is the one you need. Add it to the printer you need it for if it is not there.

Type

sudo nano /etc/cups/printers.conf 

Make the changes : replace "AuthInfoRequired none" with "AuthInfoRequired username,password" type [ctrl] [X] then [Y] then [enter] to exit, save and finaly confirm location.

Then type

sudo service cups start

and print as usual, just type your user credential and hit save when asked if you want ubuntu to store them.

Comments

[j0h]

It asked me once, for a username and passwd, which I provided. but I might have selected a feature it doesnt have, and it gave me an error. since then, I have tried reinstalling, and reconfiguring, but it never asks me for a password. That would be ok, but it doesn't print. ... IDK.

[masterleo]

This worked for me please accept the edit of the post