system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do printers do "something" for 1-2 minutes each time I want to print a paper that prints in 5 seconds?

My printer will just spin the parts for a minute before printing a paper each time, I spend 95% of the time just waiting and listening to the sounds the printer makes when printing a document.

I understand there are more expensive models that are faster, and that it cleans or unclogs the nozzles, but surely you don't have to clean for ages before each document, since when I print multiple pages, the following pages are just as good as the first one.
gpt
When you let an inkjet printer sit idle for a day or more, the ink that is on the ends of the ink jets tends to dry out and get gunky.  When the printer turns back on, it rubs the ink jets against a small sponge to get the gunk off.

Also: sometimes, the print head contains a little sensor that says "I've bumped into the left end of the printer."  This is called a "limit switch."  Sometimes, this little sensor is the *only* way for the printer to know where the print head is.   So it *deliberately* bumps the print head into the left end of the machine so that it can be sure of where the print head is.