Patent ID: 8292396
Filing Date: 2012-10-23
Classification: B41J

Abstract:
1. An image forming apparatus comprising: a recording head comprising a plurality of nozzles which discharge ink; a circulation path which comprises a feed path for feeding ink to the recording head and a eject path for ejecting the ink from the recording head, and feeds the ink flowing through the eject path again to the recording head through the feed path; a first temperature detection section provided in a side of the feed path; a second temperature detection section provided in a side of the eject path; and ink temperature adjustment means which controls temperatures of the ink; wherein the ink temperature adjustment means calculates an ink temperature at the nozzles, based on an output from the first temperature detection section and an output from the second temperature detection section, and adjusts ink temperatures such that the calculated ink temperature falls within a temperature range in which the ink can be discharged; wherein the ink temperature adjustment means adjusts the ink temperatures such that the outputs from the first and second temperature detection sections both fall within the temperature range in which the ink can be discharged; and wherein the ink temperature adjustment means comprises: