Image forming apparatus and method of manufacturing the same
US-9207612-B2 · Dec 8, 2015 · US
Image forming apparatus, system, and method using a superimposed voltage signal and a direct voltage signal
US8929786B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8929786-B2 |
| Application number | US-201213526894-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 19, 2012 |
| Priority date | Jun 24, 2011 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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Abstract
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An image forming apparatus includes a transfer unit configured to transfer a toner image onto a recording medium; a power supply unit configured to apply one of a superimposed voltage in which an alternating-current voltage and a first direct-current voltage are superimposed and a second direct-current voltage to the transfer unit; and a power supply control configured to, when the power supply unit outputs the superimposed voltage, instruct the power supply unit to output the first direct-current voltage at a first timing, and, when the power-supply unit outputs the second direct-current voltage, instruct the power-supply unit to output the second direct-current voltage at a second timing which is later than the first timing.
First claim
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What is claimed is: 1. An image forming apparatus comprising: a transfer unit configured to transfer a toner image onto a recording medium; a power supply unit configured to apply one of a superimposed voltage in which an alternating-current voltage and a first direct-current voltage are superimposed and a second direct-current voltage to the transfer unit; and a power supply control unit configured to, when the power supply unit outputs the superimposed voltage, instruct the…
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- G03G15/1675Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US8929786B2 cover?
- An image forming apparatus includes a transfer unit configured to transfer a toner image onto a recording medium; a power supply unit configured to apply one of a superimposed voltage in which an alternating-current voltage and a first direct-current voltage are superimposed and a second direct-current voltage to the transfer unit; and a power supply control configured to, when the power supply…
- Who is the assignee on this patent?
- Takeuchi Tomokazu, Haga Hiroyoshi, Shimizu Yasunobu, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification G03G15/1675. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 06 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).