My friend, a lecturer at the universe, conducted a mini-check on computer science with students, here is one student’s answer (written with accuracy to the letter):
Printers are processors that scan. by A4. The types of printers are different. For example: thin, large, etc. Through the printer, people make copies of passports, documents, etc. Types of printers - there are laser, ink and color.

P.S I am afraid of our future with such engineers :)