Patent ID: 6929347

Claim:
An ink jet printing apparatus using a printing head having ejection openings for a plurality of inks disposed on a common ejection opening-disposed surface, the plurality of inks reacting with each other to become insoluble, to eject inks from the printing head onto a printing medium for performing printing, said ink jet printing apparatus comprising: a holder for holding blades provided correspondingly to the respective ejection openings of the plurality of inks so that the blades respectively form a predetermined angle of 0° or larger with respect to a direction perpendicular to a direction of a movement of said blades for wiping and have a predetermined space between said blades in an area corresponding to a region of the common ejection opening-disposed surface between the ejection openings for the plurality of inks, and an additional blade to wipe the region of the ejection opening-disposed surface between the ejection openings for the plurality of inks; and operation means for effecting relative movement between said holder and the printing head so that the blades wipe parts of the ejection opening-disposed surface on which the corresponding ejection openings are disposed, respectively, and so that the additional blade wipes the region of the ejection opening-disposed surface between the ejection openings for the plurality of inks.