Patent ID: 7540588
Filing Date: 2009-06-02
Classification: B41J

Abstract:
1. A method for printing data, the method comprising the steps of: (a) providing an ink jet printer to print a swath of data, the ink jet printer having a print head, an ink jet driving circuit, and a phase encoder, the print head having a black jet and a color jet, the phase encoder being used for recording a plurality of predetermined positions respectively corresponding to one of the pieces of black data and one of the pieces of color data; (b) driving the print head to start to print the swath of data on one side of the ink jet printer; (c) alternately triggering the black jet and the color jet to print corresponding pieces of black data and corresponding pieces of color data in the swath of data, the step (c) comprising: (d) when the print head is driven to the other side of the ink jet printer, the swath of data is completely printed, wherein the steps (a) to (d) are performed in order; wherein the steps (c1) and (c2) are performed alternately; wherein after the steps (c1) and (c2) are performed once, the piece of black data and the piece of color data corresponding to the predetermined position at which the print head is located have been completely printed.