Image forming apparatus and image forming system for correcting curvature of a recording sheet
US-9459574-B1 · Oct 4, 2016 · US
Sheet processing apparatus and image forming system
US10023424B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10023424-B2 |
| Application number | US-201615207972-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 12, 2016 |
| Priority date | Sep 24, 2015 |
| Publication date | Jul 17, 2018 |
| Grant date | Jul 17, 2018 |
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- Title
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Abstract
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A sheet processing apparatus includes: an output unit that renders one side of a sheet convex and outputs the sheet, the sheet having the one side and other side; a first folding unit that mountain-folds the one side of the sheet, which is rendered to be convex, to form a first fold in the sheet; and a second folding unit that mountain-folds the one side of the sheet, which includes the first fold formed therein, to form a second fold in the sheet.
First claim
Opening claim text (preview).
What is claimed is: 1. A sheet processing apparatus comprising: an output unit configured to render one side of a sheet convex and outputs the sheet, the sheet having one side and an other side; a first folding unit configured to mountain-fold the one side of the sheet, which is rendered to be convex, to form a first fold in the sheet; a second folding unit configured to mountain-fold the one side of the sheet, which includes the first fold formed therein, to form a second fold in the sheet; and a reversing unit configured to reverse a direction of curvature of the sheet supplied to the first folding unit between a first direction of curvature in a case where inner tri-folding is performed of the sheet and a second direction of curvature in a case where outer tri-folding is performed of the sheet, the inner tri-folding and the outer tri-folding are performed using the first folding unit and the second folding unit. 2. The sheet processing apparatus according to claim 1 , wherein the first folding unit mountain-folds the one side of the sheet, which is rendered to be convex, to form the first fold in the sheet, and the second folding unit mountain-folds the other side of the sheet, which includes the first fold formed therein, to form a second fold in the sheet. 3. A sheet processing apparatus comprising: an output unit configured to render one side of a sheet convex and outputs the sheet, the sheet having one side and an other side; a first folding unit configured to mountain-fold the one side of the sheet, which is rendered to be convex, to form a first fold; a second folding unit configured to selectively perform inner tri-folding that mountain-folds the one side of the sheet, which includes the first fold formed therein, to form a second fold, or outer tri-folding that mountain-folds the other side of the sheet, which includes the first fold formed therein, to form a second fold; and a reversing unit configured to reverse a direction of curvature of the sheet supplied to the first folding unit between a first direction of curvature in a case where inner tri-folding is performed of the sheet and a second direction of curvature in a case where outer tri-folding is performed of the sheet, the inner tri-folding and the outer tri-folding are performed using the first folding unit and the second folding unit. 4. The sheet processing apparatus according to claim 3 , wherein the second folding unit forms the second fold on a leading edge side, in a transport direction of the sheet passing through the output unit, of the sheet from the first fold in the inner tri-folding and forms the second fold on a trailing edge side, in the transport direction, of the sheet from the first fold in the outer tri-folding.
Assignees
Inventors
Classifications
vertical medium transport path at the secondary transfer · CPC title
Folding device · CPC title
- B65H45/20Primary
Zig-zag folders {(B65H45/228 takes precedence)} · CPC title
- G03G15/6582Primary
Special processing for irreversibly adding or changing the sheet copy material characteristics or its appearance, e.g. stamping, annotation printing, punching · CPC title
Post -processing devices · CPC title
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- What does patent US10023424B2 cover?
- A sheet processing apparatus includes: an output unit that renders one side of a sheet convex and outputs the sheet, the sheet having the one side and other side; a first folding unit that mountain-folds the one side of the sheet, which is rendered to be convex, to form a first fold in the sheet; and a second folding unit that mountain-folds the one side of the sheet, which includes the first f…
- Who is the assignee on this patent?
- Fuji Xerox Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B65H45/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 17 2018 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).