After a series of tasks once the bot is done completing the tasks can I make it to print the final output through a printer ?

like, a physical printer?

Basically answer is yes, you can send the data to your printer, but it requires some additional work. Brief description: dedicated server exposed to internet (port forwarding), public IP or DDNS, additional software to receive the data and print on your printer.

Yes

if it has an API that accepts print commands (is this a real thing?) then I don't see why not otherwise, the answer above^ is slightly more complex but would also work

Without a api call if it's connected to a device on which the bot is running can that happen ?