Patent ID: 6174055
Filing Date: 2001-01-16
Classification: B41J

Abstract:
An ink jet printing apparatus having a liquid flow passage arranged in contact with an ink jet head for a liquid to flow therethrough, comprising:a liquid accumulating section in which said liquid is accumulated;a pump including a suction side and a discharge side for feeding said liquid;a first connecting passage for connecting said liquid accumulating section to an inlet of said liquid flow passage;a second connecting passage for connecting an outlet of said liquid flow passage to said suction side of said pump; anda third connecting passage for connecting said liquid accumulating section to said discharge side of said pumps,wherein said liquid is a cooling liquid for cooling said ink jet head and said cooling liquid is recirculated in a recirculating passage formed, in turn, by said pump, said third connecting passage, said liquid accumulating section, said first connecting passage, said liquid flow passage, said second connecting passage and said pump.