Patent ID: 8630030
Filing Date: 2014-01-14
Classification: H04N

Abstract:
1. An image forming apparatus with a plurality of resolution modes including a first resolution mode associated with a first halftone table and a second resolution mode associated with a second halftone table, the apparatus comprising: a printing unit to print a calibration chart on a single sheet of paper in one of the plurality of resolution modes; a scanning unit to scan the calibration chart printed on the single sheet of paper; a calibrating unit to calibrate the first halftone table and the second halftone table using color values obtained by scanning the calibration chart printed on the single sheet of paper, a user interface unit to receive input of a calibration algorithm execution request signal; and a control unit to control the printing unit to print a test sample in response to the request signal being received via the user interface unit, wherein the user interface unit receives input of a calibration algorithm re-execution request signal according to a printing status of the printed test sample.