How do I find disappeared printer icon on my iPadOS 18.4?

I just bought a brother’s printer MCJ 4335DW. And I have an older iPad os18.4 I’m trying to print from. Typically, the printer icon just appears, and I tap it and it prints. But lately, of course, the icon has disappeared and it’s nowhere to be found, or at least I can’t find it. Would you folks have any clues for me? Let me know if you need any information that I didn’t provide. Thanks.

[Re-Titled by Moderator]