Patent ID: 9056510
Filing Date: 2015-06-16
Classification: B41J,G03G

Abstract:
1. An image forming apparatus comprising: a light irradiation device which irradiates laser light; an image carrying body which is exposed to said laser light to form a latent image on the exposed portion; and an abutting member which is fastened to said light irradiation device in abutting contact with a stationary member for defining a reference position, wherein said abutting member changes in volume due to temperature fluctuation, and said light irradiation device moves with respect to said stationary member, in an opposite direction to a focal point shift which has taken place along an irradiation direction of said laser light due to said temperature fluctuation, and wherein said abutting member is located between a partition wall for separating said image carrying body and said light irradiation device, and said irradiation device, using said partition wall as said stationary member, when a focal point of said laser light is shifted in a direction away from said light irradiation device due to temperature rise.