topic Re: Compatible ink cartridge for TS6420a in Desktop Inkjet Printers

PIXMA TS6420a Skyink ink cartridges suddenly incompatible

gcfisher0802 — Thu, 19 Feb 2026 14:20:12 GMT

I use Skyink ink cartridges for the printer. I printed something on Sunday, but today I get an error message that appropriate ink cartridges are not installed. I have used Skyink for over a year. Why is there a sudden incompatibality?

Re: Compatible ink cartridge for TS6420a

SignifDigits — Wed, 18 Feb 2026 20:32:02 GMT

Canon (and the same is true for all printer vendors) only supports compatibility with their own cartridges and has no obligation to support third-party ink. I suggest that you reach out to Skyink for a resolution, not Canon. As this is a social media site and I do not work for Canon I'm only speaking as a user, and not for Canon.

Re: Compatible ink cartridge for TS6420a

shadowsports — Wed, 18 Feb 2026 20:45:14 GMT

Greetings,

3rd party inks and toners are often not manufactured to the same standards as OEM. Quality, consistency and reliability can vary. Canon doesn't do anything to stop you from using third-party inks, but compatibility can be hit or miss. Hopefully skyink can address the problem for you.