Patent ID: 8016001

Claim:
A painting material charging device comprising: a cartridge attaching unit configured to attach and detach a painting material cartridge; a painting material supplying path configured to connect with the painting material cartridge attached to the cartridge attaching unit; a first switching unit configured to switch between connecting and disconnecting the painting material supplying path and the painting material cartridge attached to the cartridge attaching unit; a painting material supplying unit configured to supply a painting material to the painting material supplying path; a discharging path configured to connect with the painting material supplying path; a second switching unit configured to switch the discharging path between a fully opened state and a fully closed state; a painting material sensor configured to detect the painting material within the discharging path; and a controlling unit configured to be connected to the painting material sensor and the second switching unit, and to cause the second switching unit to fully close the discharging path in a case where the painting material sensor detects the painting material.