Patent ID: 8045201

Claim:
A printing apparatus, comprising: a printing device which prints onto a prescribed print medium; a print result prediction device which predicts a print result on the print medium in accordance with print subject image data and a printing condition of the printing device, and accordingly creates and outputs print result prediction data including image region print result prediction data for an image region and text region print result prediction data for a text region, the image region and the text region being recognized as an image and a text, respectively, by a person viewing a correct print result, the text region print result prediction data including a text code; an image reading device which optically reads in the print result on the print medium and accordingly outputs print result read data, the image reading device being disposed on a downstream side of a printing position of the print medium and on an upstream side of an output position of the print medium in a conveyance path along which the print medium is conveyed; a print result judgment device which judges whether the print result on the print medium is successful or unsuccessful in accordance with the print result prediction data outputted from the print result prediction device and the print result read data outputted from the image reading device, wherein the print subject image data includes at least one of text region image data for the text region and image region image data for the image region, and the print result prediction device creates the print result prediction data while taking into account print quality data which includes region information for mutually separating the image region and the text region in a print content, the image region image data of the print content, and a text string composed of a code sequence that indicates a content of the text region of the print content; and an extraction device which separately extracts, in accordance with the region information, image region print result read data for the image region and text region print result read data for the text region from the print result read data obtained by reading in the print result on the print medium by the image reading device, wherein the print result judgment device makes a comparison between the image region print result read data extracted from the print result read data and the image region print result prediction data in the print result prediction data, and judges whether the print result on the print medium is successful or unsuccessful in accordance with result of the comparison.