Patent ID: 8376491
Filing Date: 2013-02-19
Classification: B41J

Abstract:
1. An image forming apparatus, comprising: at least two independent recording heads ejecting liquid droplets of different colors; restoring units, each of the restoring units conducting a restoring operation of the recording heads; counting units which count the cumulative number of print sheets printed using the recording heads since the restoring operation; a restoring control unit which controls the restoring operation of the recording heads by the restoring units; and a storage unit which stores a first setting value of the cumulative number of print sheets that is to be a threshold for conducting the restoring operation, and a second setting value which is smaller than the first setting value, wherein the restoring control unit conducts the restoring operation for all of the recording heads when the cumulative number of print sheets of either of the recording heads reaches the first setting value or above when the cumulative number of print sheets for all of the recording heads is less than the second setting value at the time of starting printing.