Patent Number: 8,217,973

Title: Exposure device for controlling light emitting elements

Abstract: An exposure device includes plural light-emitting elements, a light amount detection unit, a controller, plural holding units and a connection unit. The controller sequentially determines control values of the light-emitting elements based on comparison between the light amounts detected by the light amount detection unit and a predetermined reference value. The holding units are provided for the light-emitting elements, respectively. Each holding unit holds a control voltage of the controller. When the controller is to sequentially determine control values of a part of the plurality of light-emitting elements, the connection units connects the controller and the holding units corresponding to one or more light-emitting elements for which control values are determined earliest among the part of the plural light-emitting elements, before the controller determines the control values of the one or more light-emitting elements.

Inventors: Shioya; Kohei (Ebina, JP), Ugajin; Atsushi (Ebina, JP), Kurashima; Satoshi (Ebina, JP), Hori; Tetsuya (Ebina, JP), Sakita; Tomoaki (Ebina, JP)

Assignee: Fuji Xerox Co., Ltd.

International Classification: B41J 2/435 (20060101)

Expiration Date: 2020-07-10 0:00:00