Document reading unit, image forming apparatus incorporating same, and method of detecting original document using with same
US-9013759-B2 · Apr 21, 2015 · US
Image reader and image processing apparatus
US9225865B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9225865-B2 |
| Application number | US-201514664942-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 23, 2015 |
| Priority date | Mar 27, 2014 |
| Publication date | Dec 29, 2015 |
| Grant date | Dec 29, 2015 |
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- Title
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Abstract
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An image reader includes a platen, a carriage, a light shielding unit, a positioning mark, an ambient light detecting unit, and a control unit. The positioning mark is arranged in an area in which the light shielding unit is disposed or in an area adjacent in a main scanning direction to the area in which the light shielding unit is disposed, at a position falling within the range that can be read by the carriage. When the ambient light detecting unit detects the presence of ambient light, the control unit causes the carriage to move with the exposure lamp turned off to detect a position of the positioning mark. When the ambient light detecting unit detects the absence of ambient light, the control unit causes the carriage to move with the exposure lamp turned on to detect the position of the positioning mark.
First claim
Opening claim text (preview).
What is claimed is: 1. An image reader comprising: a platen for placing thereon a document whose image is to be read; a carriage movable in a sub-scanning direction and including an exposure lamp configured to irradiate the document with light and an image sensor configured to read the image of the document on the basis of light reflected from the document; a light shielding unit arranged adjacent in the sub-scanning direction to the platen and configured to block the lig…
Assignees
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Classifications
Electricity · mapped topic
- H04N1/00997Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9225865B2 cover?
- An image reader includes a platen, a carriage, a light shielding unit, a positioning mark, an ambient light detecting unit, and a control unit. The positioning mark is arranged in an area in which the light shielding unit is disposed or in an area adjacent in a main scanning direction to the area in which the light shielding unit is disposed, at a position falling within the range that can be r…
- Who is the assignee on this patent?
- Kyocera Document Solutions Inc
- What technology area does this patent fall under?
- Primary CPC classification H04N1/00997. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 29 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).