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

MG7520 Error B203


Called Canon Support and they say it's unrepairable but past 1 year so unreplaceable too.  Tried everything including dismantling the printhead assembly to manually clean.  Barely used the printer, 1 or 2 prints a month.  


Anyone have recommendation on non-Canon I can buy to replace for around the same price range?



Not only did it take me 8-12 hours of effort and no wireless printing ever happened, only direct connection, but 2 months after puchasing, I also got this code. What a waste of money and time. I probably printed in total 5 things from it. So lame. 

just got this message today  does anyone know what is wrong and how to fix it

I received this error and have spent hours trying to fix this.  What has anyone else tried successfully.


Canon's response was to buy another printer.  This one is only 2 years old.  My last HP lasted 10 years and was still working great when i replaced it.

Same problem. 2 1/2 year old printer and Canon said it is unrepairable.  It should have lasted more than 2 1/2 years. This will be my last Canon purchase.  


My printer is only 2 1/2 years old and I got this error.  Canon's answer is to buy another printer.  Ok. I will go buy another HP as my last HP, that the Canon MG6620 replaced, lasted 10 years.  I held on to the old HP for some unknown reason.  I plugged it in tonight and with the exception of black ink being empty the HP still works.


Goodbye Canon.


I've got an MG6850 and i had the same error code.

I used to trust Canon but i don't now.

I followed some advice to open the maching then plug in and as the heads moved close the lid after that it worked.

I wonder how long for.

The inks are penomally expensive and difficult to get.

This worked for me also. Found this after calling Canon. Canon also told me it is not fixable.

I had this error also.  Followed your method and it worked for me.  Is your printer still working?  If not, how much longer did it work?

What steps did you follow?  My printer is sitting on the closet floor waiting for our County bulk trash day.


03/30/2023: New firmware updates are available.

EOS R3 - Version 1.4.0

EOS R5 - Version 1.8.1

EOS 1DX Mark III- Version 1.7.1

Speedlite EL-1 - Version 1.0.2

03/30/2023: Product Advisory for EF50 F1.2 L USM

03/30/2023: Product Advisory for EOS R10

03/28/2023: New firmware version is available for EOS-R5 C
03/14/2023: New firmware version 1.8.1 is available for EOS R6
02/24/2023: We've updated Share Your Photos

2/07/2023: New product announcements!

EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
01/18/2023: New firmware version 1.1.1 is available for EOS R6 Mark II
01/09/2023: Help ensure your autofocus is properly aligned with a Canon Precision Alignment
01/03/2023: Welcome to CES 2023!
12/08/2022: New firmware version is available for EOS C70
12/07/2022: New firmware version 1.7.0 is available for EOS R5
11/16/2022: We're thrilled to be ranked among the Best Employers for Veterans in 2022 by Forbes.
08/31/2022: New firmware version 1.1.1 is available for RF 70-200mm L IS USM
08/09/2022: New firmware version 1.2.0 is available for CR-N 300
08/09/2022: New firmware version 1.2.0 is available for CR-N 500
07/14/2022: New firmware version 1.0.1 is available for CR-X300
06/10/2022: Service Notice:UPDATE: Canon Inkjet Printer continuous reboot loop or powering down
06/07/2022: New firmware version 1.3.2 is available for PowerShot G7 X Mark III
05/31/2022: Did someone SAY Badges?
05/26/2022: New firmware version is available for EOS-C500 Mark II
05/26/2022: New firmware version is available for EOS-C300 Mark III
05/10/2022: Keep your Canon gear in optimal condition with a Canon Maintenance Service
05/05/2022: We are excited to announce that we have refreshed the ranking scale within the community!
03/23/2022: New firmware version is available for EOS-C70
02/09/2022: Share Your Photos is back!
01/13/2022: Community Update. We will be retiring the legacy profile avatars on 01/20/2022. Click this link to read more.