Patent ID: 6048046
Filing Date: 2000-04-11
Classification: B41J

Abstract:
An ink jet recording apparatus for recording using a recording head which discharges heated ink onto a recording medium through discharge ports, said apparatus comprising:temperature detecting means, contactable with the ink discharged through said discharge ports, for detecting a temperature change arising upon contact with said ink;positioning means for positioning said recording head and said temperature detecting means at relatively opposed locations so that the ink discharged through said discharge ports may make contact with said temperature detecting means;discharge detecting means for detecting discharge or nondischarge of ink based on a detected result of said temperature detecting means;varying means for varying a number of discharged ink droplets per unit time; anda control circuit for controlling said varying means so that said number of discharged ink droplets per unit time in making discharge detection by said discharge detecting means may be different from that during the recording.