Is it a new printer ?
Can you tell me, which version of Windows is installed in the PC ?
Sorry, I have to go offline for the day, I will open the question for the other experts , so that they can try to help you with this problem.
I will be the person helping you today.
I can see that you may need a little bit of extra help.
May I ask if you still need help with this problem? If so, may I start a screen sharing session on your computer and help you resolve the problem?
Once the remote session begins, we will be able to communicate via a chat window on your computer.
After you click the "Accept this offer" button for the remote service, the remote link will be posted here.
I understand. The extra charge is because it will require more of my time. We can do this without the remote option, if you wish. Which application are you using to make the scans? When you attempt to scan, what happens?
Thank you for the update.
All you will have to do is install the following file: http://gdlp01.c-wss.com/gds/3/0100006073/02/mac-mg7500-1_1-mcd.dmg
Download, save, and install that file. After you do that, plug the printer into the computer and allow it to automatically install.
Does it work now?
What says that? Are you able to install the software?
Thank you for the update. Are you up for the remote session now?
I understand. How do you wish to continue?
I have run out of ideas.
For this reason, I am opting out of the question and allowing another expert the chance to help.
The next expert will see all that is on this page, so there will be no need to repeat anything.
When another expert picks this up, you will be notified by email.
Thank you for your patience.
Your problem is that the computer thinks that it is a WiFi printer and can't find it there
Go to apple menu / preferences/ printers
Remove it from the printers list
Then plug it in by USB making sure that the printer is on and the USB cable is secure on both ends between the computer and the printer
It should install itself automatically