The old scanner was given to a friend as a bed under a homemade CNC machine. Yourself there left the LDS with the control Board and power supply — all it was a lamp.
Old printer was dismantled for parts types of gears, rollers, took out the motors. The body from starogo bubble jet (with time varied on a case from a cheap HP DeskJet) worked in the kitchen breadbox. Some HP was at one time converted into a regular store CD DVD discs and sadaran other.
By the way, the motors in the scanner, the printer, whose 4-6 contacts are stepper (step motor) and managed with either special. chips drivers or microcontrollers with the necessary piping.