Developing device, memory unit thereof, and image forming apparatus
A developing device and imaging equipment technology, which is applied in the direction of electrical recording technology using charge graphics, electrical recording technology using charge graphics, instruments, etc., and can solve the problems of unstable electrical connection, damage to storage unit terminals, and terminal developer contamination And other issues
Active Publication Date: 2010-12-01
HEWLETT PACKARD DEV CO LP
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Problems solved by technology
If the storage unit is placed around the photoconductive medium or the developing roller, the terminals of the storage unit are easily contaminated by the developer scattered from the photoconductive medium or the developing roller
This will degrade the connection between the storage unit and the imaging device
In addition, if the memory unit is provided at a position where it often interferes with other constituent parts in the image forming apparatus (for example, the upper or lower surface of the developing device) when the developing device is installed, the memory unit terminal is easily damaged during the installation of the developing device.
In addition, when the storage unit is placed at a position subjected to vibration generated from the developing device in operation, the electrical connection between the storage unit and the image forming apparatus becomes unstable due to the vibration transmitted to the storage unit
Method used
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The invention provides a developing device, a memory unit thereof and an image forming apparatus. The developing device prevents damage of a memory unit and poor connection between terminals of the memory unit and a main body of an image forming apparatus, by improving a mounting position of the memory unit. The developing device is removably mounted to a main body of the image forming apparatus.The memory unit includes terminals exposed through a rear side of the developing device. The memory unit is disposed closer to a power reception unit formed at one side of the developing device than to a driving force reception unit formed at an other side of the developing device.
Description
Developing device, storage unit of developing device, and image forming apparatus technical field The present general inventive concept relates to an image forming apparatus, and more particularly, to a developing device having a storage unit and an image forming apparatus having the same. Background technique Generally, an image forming apparatus forms an image on a printing medium according to an input image signal. For example, printers, copiers, facsimile machines, and multifunction peripherals (MFPs) having combined functions of the above devices belong to image forming devices. Specifically, the electrophotographic image forming apparatus forms a desired image according to the following procedure. First, the surface of the photoconductive medium is charged to a predetermined potential. A laser beam is projected onto the surface of a photoconductive medium to form an electrostatic latent image. A visible image is obtained by supplying a developer to the electrosta...
Claims
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IPC IPC(8): G03G15/08G03G15/01G03G21/18
CPCG03G21/1676G03G21/1647G03G15/0813G03G2221/1657G03G15/06
Inventor 金永民
Owner HEWLETT PACKARD DEV CO LP
