Patent ID: 8562099
Filing Date: 2013-10-22
Classification: B41J

Abstract:
1. An ink jet recording apparatus comprising: a recording head configured to include at least one discharge nozzle array in which a plurality of discharge nozzles, from which ink is to be discharged, is arranged in a predetermined direction; a conveyance unit configured to convey a recording medium in a direction intersecting the predetermined direction; a scanner unit configured to read an image recorded onto the recording medium using the recording head; and a control unit configured to cause the scanner unit to read a test pattern recorded onto the recording medium using the recording head and to determine, from the test pattern read by the scanner unit, whether or not there is a faulty discharge image, wherein the test pattern includes a reference mark and a plurality of position marks, the reference mark and the plurality of position marks being arranged in the predetermined direction, and wherein, in a case where the control unit determines from the test pattern that the faulty discharge image exists, the control unit identifies a position where a discharge nozzle which is in a faulty discharge state is located based on a distance between the reference mark and a position mark which is located in closest proximity, from among the plurality of position marks, to the faulty discharge image.