Image forming apparatus and image formation correcting method

Patent metadata

Field	Value
Publication number	US-8948632-B2
Application number	US-201213619323-A
Country	US
Kind code	B2
Filing date	Sep 14, 2012
Priority date	Nov 28, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

An image forming apparatus including: a photosensitive member; a conveying member; an exposure head; a developing unit; an image forming unit; a concentration sensor having a first detection width in a conveyance direction and a second detection width in an axial direction of the photosensitive member; and a control unit, wherein the control unit controls the exposure head and the image forming unit to form a first image for correction, which includes a straight line part extending in the axial direction of the photosensitive member and having a length equal to or larger than the second detection width of the concentration sensor, on the conveying member, and wherein the control unit corrects a developing bias to be applied to the developing unit based on a detection result of the first image for correction by the concentration sensor.

First claim

What is claimed is:

1. An image forming apparatus comprising:
a photosensitive member extending in an axial direction;
a conveying member configured to convey a recording medium in a predetermined conveyance direction;
an exposure head disposed close to the photosensitive member and configured to form a latent image on the photosensitive member by performing exposure based on image data;
a developing unit configured to develop the latent image formed on the photosensitive me…

Assignees

• Yokoi Junichi
• Brother Ind Ltd

Inventors

• Yokoi Junichi

Classifications

• G03G15/5054 Primary

  Physics · mapped topic

• G03G15/065

  Physics · mapped topic