Patent ID: 7445326

Claim:
An ink-jet recording apparatus comprising: a containing member which contains a recording medium which has a base member and granular material coated on both sides of the base member, wherein, to prevent the blurring of ink into the other side, the thickness of the base member falls within a range between 100 micrometers through 500 micrometers, and the amount of the granular material falls within a range between 10 g/m 2 and 100 g/m 2 on each of both sides and roughness of the surfaces of the recording medium coated granular material is smaller than the roughness of the base member; a printing unit comprising an ink-jet recording head which jets recording liquid onto the recording medium; a memory configured to hold data of one page volume in one chunk for printing a back-side image on a back side of the recording medium, a front-side image having already been printed on a front side of the recording medium; and a conveyance unit and a conveyance path for conveying the recording medium, the front-side image having already been printed on the front side of the recording medium, into the printing unit again in order to print an image onto the other side thereof, wherein the printing unit prints the back-side image on the back-side of the recording medium such that vertical orientation of the back-side image printed on the back side of the recording medium coincides with vertical orientation of the front-side image printed on the front side of the recording medium, wherein said ink-jet recording apparatus sends the image data to the ink-jet recording head in the reverse order so that the image data is printed on the back side of the recording medium from bottom to top direction.