Book burning is done to remove from society things which a large organization no longer wants the public to have access, things which are merely (or mostly) harmful to the large organization and not to society at large.
Religious organizations and governments have been the chief culprits, but non-governmental organizations not run by any specific religion have also used the tactic. For example, in the early part of the 20th Century Anthony Comstock's New York Society for the Suppression of Vice inscribed book-burning on its seal, as a worthy goal to be achieved.
None of this has anything at all to do with the current discussion. This is not a censorship issue, nor are there any parallels to censorship. Other than you obviously being upset about their business decision I fail to see any valid points raised by you. You don't like that they've ceased supporting older printers. I get that, and I understand that that can make things difficult for some people. But that's not censorship, that's not "evil", that's not The Man putting people down. It's just what it is, they made a business decision to cease supporting old printers.
This happens in almost every industry, it's just a lot more rapid in the computing industry. You can call them Nazis (that seems to be where you're going next), but it's not a valid comparison. If the issue is that you need a printer that can work under Windows98, then ask for that. I'm sure someone somewhere has a used printer lying around somewhere. Or check out recycling places like Surplus Exchange, I'm sure they have more printers than they know what to do with.