Patent ID: 6158855
Filing Date: 2000-12-12
Classification: B41J

Abstract:
An ink jet head for ejecting an ink, comprising:an ink passage for supplying the ink from an ink container; anda filter chamber disposed in said ink passage, said filter chamber containing therein a filter,wherein said filter chamber has a cross-sectional area larger than that of said ink passage and is provided with an inlet opening in fluid communication with an inlet part of said ink passage for supplying the ink from said ink container to said filter chamber and an outlet opening in fluid communication with an outlet part of said ink passage for supplying the ink out of said filter chamber, said inlet opening and said outlet opening are faced to the filter with a clearance, and a clearance between an inlet side internal wall and an inlet side of said filter adjacent said inlet opening is smaller than a clearance between an inlet side internal wall and an inlet side of said filter elsewhere.