Patent ID: 6623093
Filing Date: 2003-09-23
Classification: B41J,B65H

Abstract:
An ink jet printing apparatus for forming images by ejecting ink from a print head on to print mediums, said apparatus comprising:discharging means for discharging printed mediums successively to a predetermined discharge position; duration determining means for determining, based on an amount of ink ejected per unit area onto a preceding print medium last discharged to the discharge position by the discharging means, a required time duration that needs to elapse before a subsequent print medium being discharged from the discharging means toward the discharge position is allowed to contact a predetermined area of the preceding print medium; speed control means for controlling a printing speed on the subsequent print medium so that the subsequent print medium will not contact the predetermined area of the preceding print medium within the time duration determined by the duration determining means; size detection means for detecting a size of the print mediums; and modifying means for changing a timing of performing the printing speed control on the subsequent print medium based on a detection result produced by the size detection means.