# US 10,245,870 B2 · Image forming apparatus and printed sheet

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- Number: US 10,245,870 B2
- Document ID: US10245870B2
- Status: Granted
- Kind: B2
- Application number: 15/442,783
- Filed: 2017-02-27
- Published: 2018-03-01
- Granted: 2019-04-02
- Earliest claimed: 2016-08-29
- Assignees: Fuji Xerox Co., Ltd.
- Applicants: Fuji Xerox Co., Ltd.
- Inventors: Toru Misaizu; Mizuki Sugino; Daisuke Tanaka; Masaru Okutsu
- Web page: https://patentgrep.com/patent/US10245870B2

## CPC

- B41M 5/502: {characterised by structural details, e.g. multilayer materials (supports, backcoats or intermediate layers for thermal dye transfer donor and receiver sheets B41M5/41, B41M5/42)}
- G03G 15/00: Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence)
- G03G 15/224: {Machines for forming tactile or three dimensional images by electrographic means, e.g. braille, 3d printing}
- G03G 15/6582: {Special processing for irreversibly adding or changing the sheet copy material characteristics or its appearance, e.g. stamping, annotation printing, punching}
- G03G 15/6585: {by using non-standard toners, e.g. transparent toner, gloss adding devices}
- B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P)
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

An image forming apparatus includes a transport unit that transports a sheet and an image forming section that forms an image region formed of a toner layer that enables information written on the sheet, which has been transported by the transport unit, by using a whiteboard marker to be erased by using a whiteboard eraser.

## Claims

### Claim 1

An image forming apparatus comprising:
a transport unit that transports a sheet; and
an image forming section that forms an image region formed of a toner layer that enables information written on the sheet, which has been transported by the transport unit, by using a whiteboard marker to be erased by using a whiteboard eraser,
wherein, in the image region formed by the image forming section, a pattern image having a predetermined gap is formed as an uppermost layer by using a clear toner, and a solid image is formed as a layer excluding the uppermost layer.

### Claim 2 (depends on 1)

The image forming apparatus according to claim 1,
wherein the image forming section forms one or both of a text and an image and forms the image region such that the image region is superposed with one or both of the text and the image and/or is formed in another region.

### Claim 3 (depends on 1)

The image forming apparatus according to claim 1,
wherein a whiteboard mode, which is a mode in which the image forming section forms the image region, is selectably displayed to a user, and
wherein the image forming section is controlled, as a result of the user making a selection, so as to proceed to formation of the image region.

### Claim 4 (depends on 1)

The image forming apparatus according to claim 1, wherein the image region comprises a first layer of clear toner having full coverage in the image region, and a second layer of clear toner that partial coverage in the image region.

### Claim 5 (depends on 4)

The image forming apparatus according to claim 4, wherein the second layer is formed on the first layer.