Hi this is Michelle and i will be assisting you today.
Try to unplug the printer and turn it off.
Now remove the existing printer driver installed on the mac
after removing the driver reboot the computer and then download and install the latest driver software from the link i am going to attach below and install the printer the way you want wifi or usb.
1. Click the "Finder" icon on your screen's dock, and click the "Macintosh HD" icon located under the Devices section in the Finder's sidebar.
2. Double-click the "Library" icon to open the folder, and double-click the "Printers" folder.
3. Locate the printer's folder you wish to delete in the window, and drag the folder to the Trash icon on the screen's dock. Alternatively, click the folder you wish to delete, click "File" at the top of the screen and select "Move to Trash" from the drop-down menu.
4. Click "Finder" at the top of the screen, and select "Empty Trash" from the drop-down menu to remove the files from your hard drive. Click "Empty Trash" on the dialog box to confirm the action. Click "Secure Empty Trash" from the drop-down list to permanently delete the files.
After following the removal steps now follow the download and install
Click here to download MG6150 Driver
Let me know if you find any problem in downloading and installing.
I have downloaded 2 options from the link you sent me. I am not sure which is the right one. I have also copied your reply. Meanwhile I will have to wait as I still can't work out how to uninstall the printer. i will go in to apple this coming week. Thanks for trying to help!
MG6100 series CUPS Printer Driver Ver. 10.84.2.0 (OS X 10.5/10.6)
this is the correct driver file for your printer.
I tried to reply and even that didn't work. Thanks for trying in case you actually get this!
That says versions 10.5 and 6. I have version 10.9
This really hasn't helped. I will ring Canon next week after speaking to Apple. I need to make sure I have the right driver version.
i am sorry the version was incorrect
Try this MG6100 series CUPS Printer Driver Ver. 10.84.2.0 (OS X 10.7/10.8/10.9)