Patent ID: 7748809

Claim:
An ink jet printing apparatus that uses a printing head to eject ink onto a printing sheet to perform printing, the said apparatus comprising: a pair of rollers for rotating which nip the printing sheet so as to convey the printing sheet to a position on which the printing is performed by the printing head; a first printing control unit that causes a distance between the printing head and the printing sheet to be a first distance and executes printing by using the printing head; a second printing control unit that causes the distance between the printing head and the printing sheet to be a second distance greater than the first distance and executes printing by using the printing head; and a changing unit that causes said first printing control unit to begin to execute printing, changes printing by said first printing control unit to printing by said second printing control unit before the printing sheet exits from a nip between said pair of rollers, in a printing operation for the printing sheet; and a releasing unit for separating said pair of rollers from each other before a rear end of the printing sheet exits from the nip between said pair of rollers, wherein said changing unit changes the printing before separating said pair of rollers from each other.