Image forming apparatus, image forming method and non-transitory computer-readable storage medium
US-9223279-B2 · Dec 29, 2015 · US
Image forming apparatus having measurement unit that irradiates a measurement image and measures light reflected therefrom, and having shielding unit that can be moved to block such irradiation and moved to not block such irradiation
US9213293B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9213293-B2 |
| Application number | US-201314141075-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 26, 2013 |
| Priority date | Dec 28, 2012 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
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An image forming apparatus includes an image forming unit configured to form a measurement image on a sheet, a measurement unit configured to irradiate the measurement image with light and measure light reflected from the measurement image, a white reference plate arranged to be movable to a first position opposed to the measurement unit and a second position separated farther from the measurement unit than the first position, a shielding unit arranged to be movable to a third position that blocks the light with which the measurement unit irradiates the white reference plate and a fourth position that does not block the light, and a control unit configured to control positions of the reference plate and the shielding unit. When the measurement unit measures the white reference plate, the control unit moves the shielding unit to the fourth position and the white reference plate to the first position.
First claim
Opening claim text (preview).
What is claimed is: 1. An image forming apparatus comprising: an image forming unit configured to form a measurement image on a sheet; a measurement unit configured to irradiate the measurement image with light and measure light reflected from the measurement image; a white reference plate arranged to be movable to a first position opposed to the measurement unit and a second position being far away from the measurement unit than the first position; a shielding unit arranged…
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- G03G15/5062Primary
Physics · mapped topic
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
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- What does patent US9213293B2 cover?
- An image forming apparatus includes an image forming unit configured to form a measurement image on a sheet, a measurement unit configured to irradiate the measurement image with light and measure light reflected from the measurement image, a white reference plate arranged to be movable to a first position opposed to the measurement unit and a second position separated farther from the measurem…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G15/5062. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Dec 15 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).