Toner cartridge and electrophotographic image forming apparatus using the same
US-2015355595-A1 · Dec 10, 2015 · US
Image forming apparatus that collects toner that is not used in image development
US8934799B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8934799-B2 |
| Application number | US-201313759234-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 5, 2013 |
| Priority date | Feb 20, 2012 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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- Title
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Abstract
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An image forming apparatus has a first voltage application section for applying a first bias to a magnetic roller, a second voltage application section for applying a second bias to a developing roller, and a controller for controlling the voltages of the first and second voltage application sections and the driving/rotating of the magnetic roller and the developing roller. When no image formation is taking place, the controller can execute a toner collection mode in which, with the first and second biases set at the same potential and the second bias set lower than the voltage applied to an image carrying member, the magnetic roller is rotated in the direction reverse to that in which it is rotated during image formation.
First claim
Opening claim text (preview).
What is claimed is: 1. An image forming apparatus comprising: an image carrying member on a surface of which an electrostatic latent image is formed; a magnetic roller which, by action of a magnet included therein, carries two-component developer containing toner and magnetic carrier in a form of a magnetic brush on a surface thereof and which, by rotating, transports the carried magnetic brush; a developing roller arranged opposite the image carrying member and opposite the ma…
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Physics · mapped topic
- G03G21/105Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8934799B2 cover?
- An image forming apparatus has a first voltage application section for applying a first bias to a magnetic roller, a second voltage application section for applying a second bias to a developing roller, and a controller for controlling the voltages of the first and second voltage application sections and the driving/rotating of the magnetic roller and the developing roller. When no image format…
- Who is the assignee on this patent?
- Kyocera Document Solutions Inc
- What technology area does this patent fall under?
- Primary CPC classification G03G21/105. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 13 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).