Patent ID: 8727526

Claim:
An inkjet printing apparatus capable of printing on a first side and a second side of a sheet, comprising: an inkjet head configured to print an image onto the sheet; a heating unit configured to heat the printed sheet at a heating area; a conveying unit configured to convey the sheet; and a controller configured to control the inkjet head and the conveying unit such that: (i) the inkjet head prints on the first side of the sheet, (ii) the conveying unit conveys a printed region of the sheet downstream through the heating area, and then reverses the conveyance of the sheet and conveys the printed region back through the heating area again, (iii) the inkjet head then prints on the second side of the sheet, and (iv) the conveying unit conveys the sheet downstream through the heating area, wherein the controller is further configured to, when the conveyance of the sheet is reversed and the printed region passes through the heating area again, change respective dwell times within the heating area for each of a plurality of divided unit areas of the printed region such that the more downstream a unit area is, the shorter the dwell time.