Technologies Employed on the Full Color Multi-Function Printer Canon iR C 6800

—Full Color Developing System Suitable for A-Si Drum—

Abstract

The electrophotographic full color Multi-Function Printer imageRUNNER C 6800,introduced into market by Canon in 2004,is equipped with an A-Si (Amorphous Silicon)drum. The concept of the MFP is “A color MFP to replace B/W MFPs in the office.”
To realize the concept, we selected an A-Si drum, which has many merits: high surface hardness, linear E-V characteristics, little degradation by charging or light exposure, and high permittivity. And as a developing system suitable for the A-Si drum, we, for the first time at Canon, combined magnetic monocomponent jumping development for black, with two-component development for Y, M and C (“Hybrid engine”). More specifically, the color development system features high resistive and low magnetized carrier particle and low compression to developing agent.