Process cartridge with developing container for an image forming apparatus

US9766571B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9766571-B2
Application numberUS-201514927317-A
CountryUS
Kind codeB2
Filing dateOct 29, 2015
Priority dateDec 21, 2011
Publication dateSep 19, 2017
Grant dateSep 19, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A developing device configured to develop a latent image formed on an image bearing member includes a rotatable developing-agent bearing member configured to bear developing agent, a developing container configured to form a developing-agent storage chamber that stores the developing agent, a developing-agent regulating portion provided in the developing container to regulate an amount of the developing agent born on the developing-agent bearing member, a support portion configured to support the developing-agent bearing member movably relative to the developing-agent regulating portion, and a pressurizing member configured to pressurize the developing-agent bearing member toward the developing-agent regulating portion. A contact portion of the developing-agent regulating portion with the developing-agent bearing member is fixed to the developing container without forming a gap from the developing container on a downstream side in a pressurizing direction of the pressurizing member.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for manufacturing a developing device configured to develop a latent image formed on an image bearing member, the developing device comprising: a rotatable developing-agent bearing member configured to bear developing agent, a developing container configured to form a developing-agent storage chamber that stores the developing agent, and a developing-agent regulating portion supported by the developing container to regulate an amount of the developing agent born on the developing-agent bearing member, wherein the method comprises: setting the developing-agent regulating portion on a mold; and then performing an insert molding by injecting resin in the mold to thereby integrally form the developing container and the developing-agent regulating portion. 2. The method for manufacturing the developing device according to claim 1 , wherein the developing-agent regulating portion is a metallic member. 3. A method for manufacturing a process cartridge removably mounted in an image forming apparatus main body, the process cartridge comprising: an image bearing member on which a latent image is formed, a rotatable developing-agent bearing member configured to bear developing agent that develops the latent image, a developing container configured to form a developing-agent storage chamber that stores the developing agent, a developing-agent regulating portion supported by the developing container to regulate an amount of the developing agent born on the developing-agent bearing member, a support portion configured to support the developing-agent bearing member movably relative to the developing-agent regulating portion, and a pressurizing member configured to pressurize the developing-agent bearing member toward the developing-agent regulating portion, wherein the method comprises: setting the developing-agent regulating portion on a mold; and then performing an insert molding by injecting resin in the mold to thereby integrally form the developing container and the developing-agent regulating portion. 4. The method for manufacturing the developing device according to claim 3 , wherein the developing-agent regulating portion is a metallic member.

Assignees

Inventors

Classifications

  • G03G15/081Primary

    characterised by the developer handling means after the supply and before the regulating, e.g. means for preventing developer blocking · CPC title

  • characterised by the developer regulating means, e.g. structure of doctor blade · CPC title

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Frequently asked questions

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What does patent US9766571B2 cover?
A developing device configured to develop a latent image formed on an image bearing member includes a rotatable developing-agent bearing member configured to bear developing agent, a developing container configured to form a developing-agent storage chamber that stores the developing agent, a developing-agent regulating portion provided in the developing container to regulate an amount of the d…
Who is the assignee on this patent?
Canon Kk
What technology area does this patent fall under?
Primary CPC classification G03G15/081. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Sep 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).