Patent ID: 7869727
Filing Date: 2011-01-11
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an image carrier; a development section which is configured to develop by toner an electric latent image formed on the image carrier into a visible image; a power supply which is configured to supply a development bias potential to the development section; an electrostatic latent image pattern potential measuring section which is configured to measure a potential of a predetermined electrostatic latent image pattern formed on the image carrier; a toner layer potential obtaining section which is configured to obtain, as a toner layer potential, a potential of toner of a visible image formed by developing the predetermined electrostatic image pattern with toner in the development section; and a control section which is configured to control the power supply, wherein the control section controls the power supply to set a condition of the development bias potential based on a toner layer potential difference which is a difference between the toner layer potential and the electrostatic latent image pattern potential, and on a development contrast potential difference which is a potential difference between the development bias potential and the electrostatic latent image pattern potential.