Patent ID: 8270886
Filing Date: 2012-09-18
Classification: G03G

Abstract:
1. A transfer nip roller operative to transfer an image from an image carrier to a recording medium, the transfer nip roller comprising: a core connected to an electrical ground; a covering portion that covers a surface of the core and includes an elastic layer on a surface of the core and a surface layer on the elastic layer, wherein the covering portion is configured such that a 3-30 elastic ratio (We3/Wt3)/(We30/Wt30) of the covering portion is 0.47 or more, where We3 is an elastic workload and Wt3 is a total workload measured by applying a load on the covering portion under a load push-in condition of 3 mN/10 seconds, and We30 is an elastic workload and Wt30 is a total workload measured by applying a load on the covering portion under a load push-in condition of 30 mN/10 seconds.