Patent ID: 7594717
Filing Date: 2009-09-29
Classification: B41J

Abstract:
1. An inkjet printer, comprising: an ink reservoir for holding a supply of liquid ink; a printhead including at least one nozzle for discharging a continuous stream of ink drops towards a substrate for printing thereon, a gutter for intercepting the ink drops not to be printed, an inlet for receiving ink from said ink reservoir, and an outlet for returning to said ink reservoir the ink not printed on said substrate; a pressure-regulated tank having an ink inlet connected to said ink reservoir for receiving ink therefrom, and an ink outlet connected to said printhead inlet for supplying pressurized ink thereto; a bypass line between said tank outlet and said ink reservoir for directing the ink from said tank to said ink reservoir while bypassing said printhead; and a bypass control valve in said bypass line for controlling the flow rate of ink via said bypass line from the tank outlet to said ink reservoir enabling said flow rate to be preset according to a desired value.