Image forming apparatus

A kind of equipment and image technology, which is applied to the equipment of electric recording technology using charge pattern, electric recording technology using charge pattern, electric recording technique, etc., and can solve the problem that the size of developing box cannot be reduced.

Active Publication Date: 2008-09-03
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, since other components must be provided outside such an increased range of movement, the size of the developing cartridge cannot be reduced.

Method used

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Embodiment Construction

[0021] Next, embodiments of the present invention will be described in detail with appropriate reference to the drawings. Of the drawings to be referred to, FIG. 1 is a side sectional view of a laser printer according to an embodiment of the present invention. Also, in the following description, the general configuration of the laser printer will first be briefly described, and then details of the configuration will be described. In the following description, description will be made with reference to the orientation when the user uses the laser printer 1 . That is to say, in FIG. 1, the right side is called "front side", the left side is called "back side", and the back side in the direction perpendicular to the paper is called "right side", which is perpendicular to the paper. The proximal side of the direction is referred to as the "left side". In addition, regarding the up and down direction, since the direction is consistent with the direction when the user uses the las...

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PUM

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Abstract

An image forming apparatus comprises: a main unit; and a developer cartridge detachably attached to the main unit. The developer cartridge comprises: a rotational body having a rotational axis and rotatable in a rotation direction; and an extended portion formed on the rotational body to extend along the rotational axis, the extended portion rotatable around the rotational axis. The main unit comprises: a driving unit configured to rotate the rotational body in the rotation direction; a detecting unit configured to detect a movement of the extended portion and an extending amount of the extended portion; and a determining unit configured to: determine whether the developer cartridge is a new product according to a presence of a movement of the extended portion detected by the detecting unit; and determine type of the developer cartridge based on the extending amount of the extended portion detected by the detecting unit.

Description

[0001] Cross-references to related applications [0002] This application is based on and claims the benefit of priority from Japanese Patent Application No. 2007-050720 filed on February 28, 2007, the entire contents of which are incorporated herein by reference. technical field [0003] An aspect of the present invention relates to an image forming apparatus capable of new product detection and type detection of a developing cartridge. Background technique [0004] Generally, in an image forming apparatus such as a laser printer, a developing cartridge containing toner is detachably attached to a device main body of the device. For example, JP-A-2006-267994 discloses an image forming apparatus capable of determining whether an attached developing cartridge is a new product (new product detection) and also determining the type of developing cartridge (type detection) (see JP- A-2006-267994). [0005] Specifically, the image forming apparatus disclosed in JP-A-2006-267994 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08G03G15/00
CPCG03G21/1896G03G2221/1853
Inventor 石川悟
Owner BROTHER KOGYO KK
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