Exposure apparatus and image-forming apparatus
US-2024345501-A1 · Oct 17, 2024 · US
Image forming apparatus having variable potential setting
US8958708B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8958708-B2 |
| Application number | US-201213465373-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2012 |
| Priority date | May 11, 2011 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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An image forming apparatus includes a first image forming portion including a first photosensitive member, a first charging member to electrically charge the first photosensitive member, and a first exposure member to expose to light the charged first photosensitive member to form an electrostatic latent image, and a second image forming portion including a second photosensitive member, a second charging member to electrically charge the second photosensitive member, and a second exposure member to expose to light the charged second photosensitive member to form an electrostatic latent image. In addition, a power source applies a common voltage to a first transfer portion and a second transfer portion, and a setting portion variably sets, for a period in which a transfer operation is performed, a potential of the exposed portion or the charged portion of the first photosensitive member and a potential of the exposed portion or the charged portion of the second photosensitive member on the basis of a plurality of currents passing through the first transfer portion and a plurality of currents passing through the second transfer portion, respectively, when the plurality of common voltages are applied to the first transfer portion and the second transfer portion in a period other than the period in which the transfer operation is performed.
First claim
Opening claim text (preview).
What is claimed is: 1. An image forming apparatus comprising: a first image forming portion including a first photosensitive member, a first charging member configured to electrically charge the first photosensitive member, a first exposure member configured to expose to light the charged first photosensitive member to form an electrostatic latent image, a first developing member configured to form a toner image by depositing a toner on an exposed portion of the electrostatic late…
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Physics · mapped topic
Physics · mapped topic
- G03G15/043Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8958708B2 cover?
- An image forming apparatus includes a first image forming portion including a first photosensitive member, a first charging member to electrically charge the first photosensitive member, and a first exposure member to expose to light the charged first photosensitive member to form an electrostatic latent image, and a second image forming portion including a second photosensitive member, a secon…
- Who is the assignee on this patent?
- Kojima Etsuji, Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/043. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 17 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).