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Developer supply device and image forming device

A developing device and developer technology, which can be applied in the fields of electrographics, optics, instruments, etc., can solve the problems of poor operability, increased cost, and large space constraints.

Inactive Publication Date: 2004-03-24
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if one toner cartridge contains a large amount of toner, it is necessary to increase the motor output for driving the toner conveying member inside the cartridge, and there is a possibility that the toner inside the cartridge will freeze
Since the cartridge also becomes large and heavy, operability when the user replaces the cartridge etc. deteriorates
Since one full-color machine needs to use four-color toner, there is a big space limitation. If only the black toner cartridge that is used frequently is increased in capacity, there will be problems such as increased costs.

Method used

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  • Developer supply device and image forming device
  • Developer supply device and image forming device
  • Developer supply device and image forming device

Examples

Experimental program
Comparison scheme
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no. 1 example

[0097] figure 1 is a schematic diagram of an image forming apparatus including the developer replenishing apparatus of the first embodiment of the present invention.

[0098] exist figure 1 , the image forming apparatus U includes: an automatic document feeder U1; and an image forming apparatus body (copier) U2 supporting the automatic document feeder and having a platen glass PG on top of the body.

[0099] The automatic document feeder U1 has: a document feed tray TG1 on which a plurality of originals Gi to be copied are stacked; and a document discharge tray TG2 to which documents are discharged from the document feed tray TG1 through a platen glass PG. The original document Gi conveyed by the upper copy position (original reading position) P1.

[0100]The image forming apparatus body U2 has a UI (User Interface) for the user to input an operation instruction signal such as copy start, an exposure optical system A, and the like.

[0101] Reflected light from a document c...

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Abstract

An image formation apparatus includes a developing unit for developing latent image, and a reserve tank that temporarily stores developer ejected from a first cartridge and a second cartridge and that discharges the developer to the developing unit. The reserve tank is provided with a storage amount sensor for sensing storage amount of the developer in the first reserve tank. The image formation apparatus further includes a controller for controlling ejection of developer from at least the first cartridge and the second cartridge into the first reserve tank in accordance with output from the storage amount sensor.

Description

field of invention [0001] The present invention relates to a developer replenishing device for replenishing developer in a developing device in an image forming device such as an electrophotographic copying machine or a printer, and an image forming device including the developer replenishing device, and more particularly to a method for recharging A developer replenishing device that notifies a user of a need for toner replenishment and controls prohibition of image formation, and an image forming device including the developer replenishing device. [0002] The present invention can be used particularly suitably for a developer replenishing device having a supply container (tank) temporarily storing toner in a part of the supply passage, and an image forming apparatus including the developer replenishing device. Background technique [0003] Since electrophotographic copiers, printers, and the like that are frequently used by users consume a large amount of toner, if the to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/01G03G15/08G03G15/16G03G15/20
CPCG03G2215/0119G03G2215/0888G03G15/0832G03G15/0856G03G15/0875G03G15/0879G03G15/0865G03G15/0855
Inventor 弓气田晓高岛义行
Owner FUJIFILM BUSINESS INNOVATION CORP