Printing apparatus, a printing medium and a printing method

The present invention provides a easier way to improve the print quality of a printing medium having a lenticular lens of the printing apparatus, a printing medium and a printing method. When the slide for one end portion disposed in the shape accuracy difference lenticular lens body, upon detection of the other end of the lenticular (step S110), the detected end of the lenticular frame position as the end position of the paper stored in the buffer (step S120), control the carriage motor so that the carriage moves away from the starting position in the main scanning direction and controls the start of the print head so that the sheet edge position and the print data discharging ink of respective colors (step S130). At the end of the lenticular lens arranged good shape accuracy thereof, the ink can be attached to the lens body with respect to a more appropriate position, capable of seeking to enhance the printing quality.