cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Canon MG6821

lvbassist
Apprentice

We have a Canon MG6821 multifunction printer.....

When trying to scan something, the printer is connected wireless, I get this message, "An error occurred while communicating with the scanner."

I have tried to research this, but, the attempts produce the same message.

How do I get this printer to connect to all functions, wirelessly, with our computer?

We use an iMac, 21.5 inch, masOS Sierra........

 

Thanks in advance....

2 REPLIES 2

Stephen
Moderator
Moderator

Hi lvbassist!

 

Thank you for reaching out to us! 

You'll want to make sure you're using the most up-to-date software from our site. You can find the downloads HERE

 

If you get stuck, or need help with setting up the software, our US-based support team can be reached by phone during the week, or anytime by email. The contact information is at the same link above. 

Thanks for your reply.

Unfortunately, the same problem exists....

When I have time, I will call support.

 

Thank you.

 

Holiday
Announcements
12/15/2025: New firmware update available for EOS C50 - Version 1.0.1.1

11/20/2025: New firmware updates are available.

EOS R6 Mark III - Version 1.0.1

EOS R3 - Version 2.0.0

EOS R1 - Version 1.2.0

EOS R5 Mark II - Version 1.2.0

EOS R5 - Version 2.2.1

PowerShot G7 X Mark III - Version 1.4.0

PowerShot SX740 HS - Version 1.0.2


10/21/2025: Service Notice: To Users of the Compact Digital Camera PowerShot V1

10/15/2025: New firmware updates are available.

Speedlite EL-5 - Version 1.2.0

Speedlite EL-1 - Version 1.1.0

Speedlite Transmitter ST-E10 - Version 1.2.0


07/28/2025: Notice of Free Repair Service for the Mirrorless Camera EOS R50 (Black)

07/24/2025: New firmware updates are available.


07/23/2025: New firmware updates are available.

EOS R5C - Version 1.1.1.1

EOS C80 - Version 1.0.3.1


7/17/2025: New firmware updates are available.

EOS R7 - Version 1.7.1

EOS R10 - Version 1.7.0

EOS R8 - Version 1.5.0

EOS R50 - Version 1.4.0

Powershot V10 - Version 1.4.0

Powershot V1 - Version 1.1.0

EOS R50V - Version 1.1.1


05/21/2025: New firmware update available for EOS C500 Mark II - Version 1.1.5.1

02/20/2025: New firmware updates are available.

RF70-200mm F2.8 L IS USM Z - Version 1.0.6

RF24-105mm F2.8 L IS USM Z - Version 1.0.9

RF100-300mm F2.8 L IS USM - Version 1.0.8

RF50mm F1.4 L VCM - Version 1.0.2

RF24mm F1.4 L VCM - Version 1.0.3


01/22/2024: Canon Supports Disaster Relief Efforts in California
01/14/2025: Steps to resolve still image problem when using certain SanDisk SD cards with the Canon EOS R5 Mark II