Image reading device and image forming apparatus for detecting dirt at a document reading position
US-9438752-B1 · Sep 6, 2016 · US
Image reading device
US2025106338A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025106338-A1 |
| Application number | US-202418894142-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 24, 2024 |
| Priority date | Sep 27, 2023 |
| Publication date | Mar 27, 2025 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A reading unit configured to read an image of a medium conveyed in a conveyance direction in a conveyance path, a rotation member disposed to face the reading unit across the conveyance path and configured to rotate about an axis, a plurality of background members provided at the rotation member and configured to be positioned to face the reading unit when the rotation member rotates, and a first cleaning unit configured to clean the plurality of background members are included.
First claim
Opening claim text (preview).
What is claimed is: 1 . An image reading device, comprising: a reading unit configured to read an image of a medium conveyed in a conveyance direction in a conveyance path; a rotation member disposed to face the reading unit across the conveyance path and configured to rotate about an axis; a plurality of background members provided at the rotation member and configured to be positioned to face the reading unit when the rotation member rotates; and a first cleaning unit configured to clean the plurality of background members. 2 . The image reading device according to claim 1 , comprising: a rotation drive unit configured to rotate the rotation member about an axis; a control unit; and a sensor configured to sense contamination of the plurality of background members, wherein the first cleaning unit is disposed and configured to clean the plurality of background members in a state where the rotation member rotates, and the control unit performs a cleaning operation for the plurality of background members by the first cleaning unit based on acquired information by the sensor. 3 . The image reading device according to claim 2 , wherein the reading unit also serves as the sensor. 4 . The image reading device according to claim 2 , wherein the plurality of background members include a set of background members of a same color, and the control unit performs a switching operation of the plurality of background members based on the acquired information by the sensor for the plurality of background members cleaned by the first cleaning unit. 5 . The image reading device according to claim 2 , wherein the first cleaning unit is disposed between one of the plurality of background members and another one of the plurality of background members on an outer peripheral surface of the rotation member. 6 . The image reading device according to claim 2 , wherein the rotation member includes a reference member having a reference color disposed between the one of the plurality of background members and the other one of the plurality of background members on an outer peripheral surface. 7 . The image reading device according to claim 6 , wherein the reading unit includes a light-transmissive member disposed to face the rotation member, the rotation member includes a second cleaning unit configured to clean the light-transmissive member by rotating, and the control unit performs a cleaning operation for the light-transmissive member by the second cleaning unit based on information read by the reading unit in a state where the reference member faces the light-transmissive member.
Assignees
Inventors
Classifications
- H04N1/00909Primary
Cleaning arrangements or preventing or counter-acting contamination from dust or the like (cleaning in general, prevention of fouling in general B08B) · CPC title
Image reader (H04N2201/0091 - H04N2201/0094 take precedence) · CPC title
- H04N1/00814Primary
according to a detected condition or state of the reading apparatus, e.g. temperature · CPC title
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- What does patent US2025106338A1 cover?
- A reading unit configured to read an image of a medium conveyed in a conveyance direction in a conveyance path, a rotation member disposed to face the reading unit across the conveyance path and configured to rotate about an axis, a plurality of background members provided at the rotation member and configured to be positioned to face the reading unit when the rotation member rotates, and a fir…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification H04N1/00909. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 27 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).