# US 9,873,265 B2 · Irradiation device and image forming apparatus

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- Number: US 9,873,265 B2
- Document ID: US9873265B2
- Status: Granted
- Kind: B2
- Application number: 15/346,811
- Filed: 2016-11-09
- Published: 2017-12-21
- Granted: 2018-01-23
- Earliest claimed: 2016-06-21
- Assignees: Fuji Xerox Co., Ltd.
- Applicants: Fuji Xerox Co., Ltd.
- Inventors: Takehiro Niitsu; Jun Isozaki; Hiroyuki Tsukuni; Akira Sakamoto
- Web page: https://patentgrep.com/patent/US9873265B2

## CPC

- B41J 29/12: Guards, shields or dust excluders
- B41J 11/0021: {using irradiation}
- B41J 11/00218: {Constructional details of the irradiation means, e.g. radiation source attached to reciprocating print head assembly or shutter means provided on the radiation source}
- B41M 7/00: After-treatment of prints, e.g. heating, irradiating, {setting of the ink, protection of the printed stock (pre-treatment or treatment during printing B41M5/0011; printers for treating or overcoating copy materials before, during or after printing B41J11/0015)}
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- 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)

## Abstract

An irradiation device includes: an irradiation unit that irradiates a target with light; at least one component that is arranged in an advancing direction of light reflected by the target; and a light blocking unit that is arranged between the target and the at least one component in the advancing direction and blocks the reflected light.

## Claims

### Claim 1

An irradiation device comprising:
an irradiation unit that irradiates a target with light;
at least one component that is arranged in an advancing direction of light reflected by the target;
a light blocking unit that is arranged between the target and the at least one component in the advancing direction and blocks the reflected light;
a transmitting member that is arranged between a side in which the irradiation unit and the at least one component are provided and the target, the light being transmitted through the transmitting member;
the light blocking unit supporting the transmitting member from a side in which the target is provided; and
the transmitting member is disposed beneath the irradiation unit and the at least one component in a horizontal plane.

### Claim 2 (depends on 1)

The irradiation device according to claim 1, further comprising:
a reflecting unit that is provided at a part, in the side in which the target is provided, of the light blocking unit and reflects the reflected light toward the side in which the target is provided.

### Claim 3 (depends on 1)

The irradiation device according to claim 1, further comprising: an absorbing unit that is provided at a part, in a side in which the at least one component is provided, of the light blocking unit and absorbs the light from the irradiation unit.

### Claim 4 (depends on 2)

The irradiation device according to claim 2, further comprising: an absorbing unit that is provided at a part, in a side in which the at least one component is provided, of the light blocking unit and absorbs the light from the irradiation unit.

### Claim 5 (depends on 1)

An image forming apparatus comprising:
an image forming unit that ejects liquid droplets onto a recording medium, thereby forming an image; and
irradiation device according to claim 1 that irradiates the recording medium as the target with light, thereby drying the recording medium.