Patent ID: 9044954
Filing Date: 2015-06-02
Classification: B41J

Abstract:
1. A continuous ink jet printer comprising an ink tank for holding ink; a print head; an ink nozzle disposed in the print head and in fluid communication with the ink tank for ejecting ink droplets; a gutter disposed in the print head for receiving, through an ink-receiving inlet thereof, ink droplets which are not used for printing; a gutter flow path starting at the ink-receiving inlet, for ink that has entered the gutter through the ink-receiving inlet, and providing fluid communication to the ink tank; a makeup tank is in vapor communication with the ink tank to allow air to be conveyed from the ink tank to the makeup tank; a return line is in fluid communication between the makeup tank and the print head for conveying air from the makeup tank to enter the gutter flow path; and a condenser is in fluid communication with the makeup tank and the return line, the condenser disposed between the makeup tank and the return line, the condenser adapted to receive exhaust from the makeup tank and condense solvent from the exhaust, the condensed solvent flowing into the makeup tank.