Printing system with compact transfer roller

摘要

A compact motorized transfer roller for a printer is disclosed. The roller has a cylindrical body with an outer surface and an interior space. A motor is located in the interior space and rotates the body. The rotating body advances and prints on a sheet of media. In some embodiments, the motor is a stepper motor and uses a gear assembly in which worm gear carried by an output shaft of the motor cooperates with one or more reduction gears.