topic Re: Mac PIXMA TR8620 scanner not found, cannot communicate error (solved) in Desktop Inkjet Printers

Mac PIXMA TR8620 scanner not found, cannot communicate error (solved)

gateslinger — Fri, 23 Oct 2020 19:51:54 GMT

All-

So I've been wrestling with this issue of the scanner not being found by the IJ Scan Utility Lite under Mac Catalina 10.15.7 where it wasn't finding the scanner and throwing the pop-up error:

Cannot communicate with scanner. Possible reasons:...

I could print fine but could not scan. Printer was installed with Setup from the support page and added using Airprint Secure, but could not be found by IJ Scan Utility Lite. However my Windows box finds the scanner portion of the printer fine. I finally broke down and called support and I got it working. Specifically, IPv6 needs to be turned off on the printer. To do this:

On the printer, go the printer home screen
Click on the Device settings wheel
Click on Device Settings
Click on LAN Settings
Wi-Fi
Then click on the "Advanced" tab
TCP/IP settings
IPv6 - it'll throw a pop-up message, click Yes
Enable/disable IPv6
Click Disable
Exit back to Home

And you're good to go. Hopefully this will save some frustration and time for others.

-G

Re: Mac PIXMA TR8620 scanner not found, cannot communicate error (solved)

skahn — Thu, 30 Sep 2021 01:03:54 GMT

thank you. this did not work for me. anyone else? i just bought this printer. installed all the drivers etc. still does not recognize my computer for scanning.

Re: Mac PIXMA TR8620 scanner not found, cannot communicate error (solved)

skahn — Thu, 30 Sep 2021 01:05:28 GMT

in fact for some reason that just disabled the wifi on the printer. help!

Re: Mac PIXMA TR8620 scanner not found, cannot communicate error (solved)

bruce334 — Mon, 26 May 2025 22:13:39 GMT

Followed your directions and went back to Home screen. IJ Scan Utility still gives message unable to connect or find scanner. Printer and Scanner in Settings shows printer, however when trying to open scanner, no scanner appears. After being on the phone with Apple for an hour they are positive it's not a Mac problem!