Patent ID: 7030895
Filing Date: 2006-04-18
Classification: G03G

Abstract:
1. A photoreceptor cleanerless image forming apparatus to overlappingly form yellow, magenta, cyan, and black toner images, wherein said apparatus includes a control section that is configured to decrease color mixture or exposure error based on controlling an exposure intensity, wherein said apparatus comprises four photoreceptor cleanerless image forming units each including at least a photoreceptor, a charger, an exposure apparatus, and a developing apparatus for overlappingly forming yellow, magenta, cyan, and black images; and the control section configured to control: wherein volume-based average particle diameters Pa, Pb, Pc, and Pd satisfy conditions of Pb≧Pd, Pc≧Pd, and Pa>Pd, where Pa, Pb, Pc, and Pd indicate volume-based average particle diameters of toners to be developed on a photoreceptor in the order of development.