PAINT SUPPLY SYSTEM AND PAINT SUPPLY METHOD

PROBLEM TO BE SOLVED: To provide a paint supply technology capable of achieving space saving with a simple configuration and supplying a paint to a cylinder in a short time.SOLUTION: A paint supply system 10 includes a cylinder device 16 for supplying a stored paint to a coating gun 14, a cylinder device 18 for temporarily storing a next paint and supplying the next paint to the cylinder device 16 when connecting the cylinder device 16, and a supply valve part 20 for supplying the paint to the cylinder device 18. All it takes is to supply the paint to the cylinder device 16 from the cylinder device 18, thereby it does not take time to supply the paint, thus the paint is supplied to the cylinder device 16 in a short period of time. The cylinder device 18 is detachable from the cylinder device 16 so that a new paint may be supplied into the cylinder device 18 through the supply valve part 20 when detached from the cylinder device 16 after supplying the paint to the cylinder device 16. A cartridge is unnecessary and a cartridge exchange device is unnecessary, thereby space saving is attained in a factory.