Patent ID: 7899348
Filing Date: 2011-03-01
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a developing section for developing an electrostatic latent image formed on an image bearing member with use of developer applied with a developing bias; a density detecting portion for detecting directly or indirectly a density of a developed image formed on the image bearing member; a surface electrical potential detecting portion for detecting directly or indirectly a surface electrical potential of the image bearing member; a developing bias correcting portion for developing a predetermined developing density adjustment pattern on the image bearing member and correcting the developing bias in accordance with the density of the developing density adjustment pattern detected by the density detecting portion; a developing density adjustment pattern storage portion for storing a plurality of developing density adjustment patterns having print rates different from one another, wherein the developing bias correcting portion changes a developing density adjustment pattern, which is to be developed on the image bearing member, in accordance with a surface electrical potential detected by the surface electrical potential detecting portion.