Patent ID: 7651211
Filing Date: 2010-01-26
Classification: B41J,B41M,C09D

Abstract:
1. A recording method with an ink ejected by an ink jet head, in which ink jet head an ink repellent layer is formed on a surface of a nozzle plate of the ink jet head so that an opening portion for liquid ejections is established, the ink jet head being formed such that a cross-sectional area for a neighborhood of the opening portion of the ink repellent layer in a plane which is perpendicular to a centerline of the opening portion grows big sequentially as the cross-sectional area is further separated from the surface of the nozzle plate, wherein an amount of the ink transferred onto a recording medium during a contact time of 100 ms measured by a dynamic scanning absorptometer with environmental conditions of temperature 23° C. and relative humidity 50% RH is between 4 and 15 ml/m