Sometimes errors can be cleared by removing power from printer (unplug) and then pressing the power button a few times; that sometimes drains charge from the memory. No guarantees, but free to try.
This what Canon rep posted in a different question - should apply here:
"If the printer is in it's 1 year warranty, I recommend reaching out to Canon support for this issue. You will need to register your Canon gear HERE to access additional support options.
If the printer is out of warranty, you would qualify for the Canon Upgrade program. This is for out of warranty units which have been diagnosed to require service or are incompatible with a new or upgraded system. This program allows you the opportunity to purchase a replacement product discounted from the list price. Free ground shipping is included with your purchase.
If you would like to take advantage of this offer, please call our Sales Department at (866) 443-8002 Mon-Sat, 9 AM to 9pm EST excluding holidays."
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