wireless Scanner connection

Hi

I had this exact problem and did the following:

1. Firstly I connected the printer to my wifi and made sure my imac was on the same network
2. I then setup the printer over wifi on my imac (it used AirPrint)
3. Then navigate to Finder -> Go( in the menu at the top) -> Macintosh HD -> Library -> Image Capture -> Devices
4. Copy "Epson Scanner" to your Desktop and alter the permissions for everyone and staff to "Read & Write", to alter permissions right click on "Epson Scanner" and go to get info and permissions are at the bottom
5. Delete the Original "Epson Scanner" Plugin from Devices Folder
6. Copy the "Epson Scanner" from the desktop with custom permission to Devices Folder
7. Try opening the scanner now, may need a restart

If you want to go back to a wired connection to the printer like I did then just setup the printer with a wired connection you do not need to do all the above again, you can even go back to Finder -> Go -> Macintosh HD -> Library -> Image Capture -> Devices and change the "Epson Scanner" everyone permission back to read only.

By the way this assumes you have all of the relevant drivers installed.

Hopefully this helps

It is difficult for us to help you when you do not provide the full model number of your Epson device.

I suspect that the application Epson Scanner is outdated, and for some models, Epson has introduced Epson Scanner 2 this year as an update. Also, your device might even be supported by Apple's built-in AirPrint that works with selected networked devices without the need to use any vendor drivers or utilities.

@frm0616 & @sFoHelp I followed both helpful answers and, in addition, deleted all my old scanner drivers from previous models. I'm delighted to say that everything is working well now (Epson WF4830). Thank you!

Hi Applemarg, 

Thank you for using the Apple Support Communities. 

We understand that you’re not able to use your scanner and we have some Apple resources below that can help. 

Solve scanning problems on Mac

If an app on your Mac stops responding, closes unexpectedly, or won’t open

If you can’t access a document, a folder, or an app on Mac

Have a nice day. 

Thank you frm0616 for your easy to follow directions to solving this annoying system upgrade problem. I'm doing my best to keep ahead of the game but feel like I'm in a losing battle!

Justgetmethroughit

(please ignore - solution had already been posted by sFoHelp)

This worked for me. I had the same problem.

I am trying to scan a document on my Epson printer. I get a message that I do not have permission to open the Epson scanner. How do I get permission?

See the detailed reply by frm0616 above, it gives the solution.

The above solutions did not work for me. What worked is to find the application as described above ( Macintosh HD -> Library -> Image Capture -> Devices ) then double click to open it. When I did so the OS gave me a warning the application had been downloaded and did I trust it. I approved it. Then, everything worked normal.

So, I suspect it was just a Big Sur security issue not wanting to launch the app. Once approved it worked.

Notes:

• I had changed the permissions previously and it did not work, BUT I had not changed them back before doing what I described above. So, it is possible both are necessary.
• I had also downloaded and installed updated Drivers from the Epson website in an attempt to get it to work, none of which changed it immediately, but had been done prior to my trying the direct double-click launch method.