If you are missing colors from the nozzle check pattern how are you concluding that no nozzles are clogged?
Actually, I ran the nozzle check procedure, several deep cleanings, and replaced the cartridge with another magenta, with the resultant printout displaying the absence of only the dark magenta band. My mistake, it did not actually inform me that the nozzle is unclogged. I guess it could be, but why would it print out the other two lighter magenta bands?
I don’t know. It may be that different nozzles are used. You could give Canon a call but I don’t know if they support that printer any more.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
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