Patent ID: 7686436
Filing Date: 2010-03-30
Classification: B41J

Abstract:
1. A recharging system for an ink cartridge comprising: an ink cartridge installing device provided with an ink injection portion formed with an ink injection hole communicating with a nozzle of the ink cartridge, and installing the ink cartridge; a quantitative ink supply cylinder connected to the ink injection portion via an ink supply tube; a positive pressure tank for storing high pressure air from a compressor; a charging cylinder connected to the positive pressure tank via a supply tube for the compressed air for supplying the air in the quantitative ink supply cylinder to the ink injection hole through the ink injection tube by using a piston operated by the air pressure supplied from the positive pressure tank; a bulk ink cartridge connected to one side of the quantitative ink supply cylinder for supplying the ink to be charged; a negative pressure tank connected to the ink injection hole of the cartridge installing device via a vacuum tube for maintaining a proper vacuum by a vacuum pump; and quantitative position control means connected to the charging cylinder for controlling the movement displacement of the piston in the charging cylinder.