They have plastic gears and other assorted parts in them and if it is a inkjet the heads have a usable life span till they will fail to print properly. The printers in the 75 to 250 range are these disposable printers I speak of... Just letting you know before you get too deep in the expense of possibly fixing the printer. Just so you know a bench tech is normally between 60 and 90 a hour for something like that, some numbers to help assess the job.. Hope you are able to get it back running anyways...
GB we ain al ric lik u.
When I got out of the Army in 76, (the first time) I worked for IBM. They developed the first ink jet printer, it was the size of a very large copying machine and cost $5000.