Big Sur won't allow me to scan on a Canon printer/scanner

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Level 1

8 points

Big Sur won't allow me to scan on a Canon printer/scanner

I have a Macbook Pro running Big Sur 11.5.1. I also have a canon Pixma MG 7500 series printer/scanner. I usually print and scan using AirPrint. I am the owner and the administrator for this laptop.

Every time I try to scan something (scanner worked well before updating to Big Sur) I get a Mac message saying, "You do not have permission to open the application "canonIJscanner14F.app"". And then I get a message on the scanner (through the printer) that says " Failed to open a connection to the device (-21345)". Printer function works fine.

I have also tried scanning using the Mac Image capture and preview apps and I get the same messages.

Any thoughts?

MacBook Pro 13″, macOS 11.5

Posted on Aug 13, 2021 1:41 PM

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Answer 1

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Jan Hedlund

Level 7

22,255 points

Aug 13, 2021 2:50 PM in response to Rich0842

Hi,

Similar Big Sur problems have been reported with scanners from various printer manufacturers. Camp_mother mentioned a solution for Canon in https://discussions.apple.com/thread/253004346?answerId=255650031022#255650031022 . Would something like that possibly work with your scanner? Power cycling the devices involved may also be worth testing.

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