The Ink Machine is the titular device of the 2017 action horror game Bendy and the Ink Machine. It was designed to bring fictional cartoon characters into the real world, but instead created twisted, monstrous versions of such characters with violent agendas.
If Henry, the protagonist, gathers all objects needed and switches up the ink pressure, the Ink Machine will be activated. It is possible that the device is responsible for the creating of "Bendy", as the latter tried to grab Henry into the room where the machine is.
The prints seen on a desk in Chapter Two: The Old Song shows a second version of the Ink Machine, possibly planned to be built.