Image forming apparatus and method of manufacturing the same
US-9207612-B2 · Dec 8, 2015 · US
Image forming apparatus
US9046830B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9046830-B2 |
| Application number | US-201414173122-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 5, 2014 |
| Priority date | Mar 4, 2013 |
| Publication date | Jun 2, 2015 |
| Grant date | Jun 2, 2015 |
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Abstract
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An image forming apparatus includes a rotatable image bearing member, a nip forming member, and a power source. The rotatable image bearing member bears a toner image on a surface thereof and rotates. The nip forming member contacts the surface of the image bearing member to form a transfer nip therebetween. The power source applies a transfer bias to the transfer nip to transfer the toner image from the image bearing member onto a recording medium interposed in the transfer nip. The transfer bias includes a superimposed transfer bias in which an alternating current (AC) component is superimposed on a direct current (DC) component and a polarity of the superimposed transfer bias changes with time. A phase difference between an AC voltage and an AC current output from the power source is equal to or less than 0.47 cycles.
First claim
Opening claim text (preview).
What is claimed is: 1. An image forming apparatus, comprising: a rotatable image bearing member to bear a toner image on a surface thereof and rotate; a nip forming member to contact the surface of the image bearing member to form a transfer nip therebetween; and a power source to apply a transfer bias to the transfer nip to transfer the toner image from the image bearing member onto a recording medium interposed in the transfer nip, the transfer bias including a superimposed…
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Physics · mapped topic
- G03G15/1675Primary
Physics · mapped topic
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- What does patent US9046830B2 cover?
- An image forming apparatus includes a rotatable image bearing member, a nip forming member, and a power source. The rotatable image bearing member bears a toner image on a surface thereof and rotates. The nip forming member contacts the surface of the image bearing member to form a transfer nip therebetween. The power source applies a transfer bias to the transfer nip to transfer the toner imag…
- Who is the assignee on this patent?
- Tanaka Shinya, Ishii Hirokazu, Shimizu Yasunobu, and 3 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 Jun 02 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).