Shutter having an air duct therethrough for use in a toner cartridge
US-9217955-B2 · Dec 22, 2015 · US
Developing device and image forming apparatus
US8948658B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948658-B2 |
| Application number | US-201213356933-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2012 |
| Priority date | Feb 7, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A developing device comprises a first and a second developer conveyance path. A first conveyance member is provided in the first developer conveyance path in a freely rotatable manner and has a helical blade. A developing roller supplies the developer in the first developer conveyance path to a photoconductor drum. A developer collection path guides two-component developer left on a surface of the developing roller from the first developer conveyance path. A developer surface adjustment window comprises a predetermined level for allowing excess developer exceeding the level of the window to be guided from the first developer conveyance path to the developer collection path.
First claim
Opening claim text (preview).
What is claimed is: 1. A developing device comprising: a first developer conveyance path and a second developer conveyance path for conveying and circulating a two-component developer including a toner and a magnetic carrier; a first communicating path for guiding the two-component developer in the first developer conveyance path to the second developer conveyance path; a second communicating path for guiding the two-component developer in the second developer conveyance path…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G03G15/0839Primary
Physics · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8948658B2 cover?
- A developing device comprises a first and a second developer conveyance path. A first conveyance member is provided in the first developer conveyance path in a freely rotatable manner and has a helical blade. A developing roller supplies the developer in the first developer conveyance path to a photoconductor drum. A developer collection path guides two-component developer left on a surface of …
- Who is the assignee on this patent?
- Hayashi Shigeki, Nagai Takafumi, Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/0839. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 03 2015 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).