Moisture detecting apparatus for recording material and image forming apparatus
US-11415508-B2 · Aug 16, 2022 · US
Moisture detecting apparatus for recording material and image forming apparatus
US2022349817A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022349817-A1 |
| Application number | US-202217868917-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 20, 2022 |
| Priority date | Apr 11, 2017 |
| Publication date | Nov 3, 2022 |
| Grant date | — |
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- Title
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Abstract
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A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through a recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of a light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value.
First claim
Opening claim text (preview).
1 . A moisture detecting apparatus comprising: a light emitting unit including a first light source configured to emit light having a first wavelength of visible light or near-infrared light as a peak wavelength, and a second light source configured to emit light having a second wavelength of visible light or near-infrared light that is longer than the first wavelength as a peak wavelength; a light receiving unit configured to receive light emitted from the first light source and transmitted through a recording material, and light emitted by the second light source and transmitted through the recording material; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light source is transmitted through the recording material, and a second detection value indicating an extent to which the light emitted by the second light source is transmitted through the recording material, based on a light receiving result of the light receiving unit; and a determination unit configured to determine a value related to a moisture content of the recording material based on the first detection value and the second detection value. 2 - 29 . (canceled)
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Classifications
using near infrared light · CPC title
primary transfer to an intermediate transfer belt (G03G15/0184 takes precedence) · CPC title
by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers · CPC title
using LEDs · CPC title
- G01N21/3559Primary
in sheets, e.g. in paper · CPC title
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- What does patent US2022349817A1 cover?
- A moisture detecting apparatus includes: a light emitting unit including a first light source configured to emit light having a first wavelength as a peak wavelength, and a second light source configured to emit light having a second wavelength as a peak wavelength; a detecting unit configured to detect a first detection value indicating an extent to which the light emitted from the first light…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G01N21/3559. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 03 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).