Patent ID: 6935715
Filing Date: 2005-08-30
Classification: B41J

Abstract:
1. A method of printing on a print medium with a printhead in an ink jet printer, said printer having a minimum distance the print medium must be moved in an advance direction to overcome advancement errors associated with equipment for advancing the medium, to thereby move the medium a reliable distance, said method of printing comprising the steps of: advancing the print medium in said advance direction a predetermined amount during a first advancing step; printing on the print medium with the printhead in an area corresponding to said predetermined amount during a first printing step; determining an end of printable area on the print medium in said advance direction; advancing the print medium in said advance direction a fixed minimum reliable move amount during a second advancing step, dependent upon said determining step, said minimum reliable move amount being equal to said minimum distance and less than said predetermined; and printing on the print medium with the printhead in an area corresponding to said minimum reliable move amount during a second printing step; wherein said first printing step is carried out using multiple pass printing, said multiple being an integer p; and said determining step including: calculating whether the following mathematical relationship is true: where,