# US 11,305,558 B2 · Medium heating device and liquid ejecting device

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- Number: US 11,305,558 B2
- Document ID: US11305558B2
- Status: Granted
- Kind: B2
- Application number: 16/777,321
- Filed: 2020-01-30
- Published: 2020-08-06
- Granted: 2022-04-19
- Earliest claimed: 2019-01-31
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Yuichi Washio; Daisuke Fujiwara
- Web page: https://patentgrep.com/patent/US11305558B2

## CPC

- B41J 11/002: {Curing or drying the ink on the copy materials, e.g. by heating or irradiating}
- B41J 11/00212: {Controlling the irradiation means, e.g. image-based controlling of the irradiation zone or control of the duration or intensity of the irradiation}
- B41J 11/00216: {using infrared [IR] radiation or microwaves}
- B41J 11/0024: {using conduction means, e.g. by using a heated platen}
- B41J 11/02: Platens
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

A medium heating device includes a support portion configured to support a medium being transported, a heating unit configured to heat a medium supported by the support portion, and a detector configured to detect a temperature of the support portion. The support portion includes a metal plate including a first surface as the support face, an end portion of the metal plate is bent toward an opposite side to the first surface, the metal plate is fixed by a fixing portion and a fixing portion next to the fixing portion in a width direction, and a detection position of the detector is set to a position between the mutually adjacent fixing portions in the width direction.

## Claims

### Claim 1

A medium heating device comprising:
a support portion including a support face and configured to support a medium being transported;
a heating unit configured to heat the medium supported by the support portion;
a detector configured to detect a temperature of the support portion; and
a control unit configured to control an output of the heating unit, based on the temperature detected by the detector, wherein
the support portion includes a metal plate including a first surface as the support face,
an end portion of the metal plate is bent toward an opposite side from the first surface,
the metal plate is fixed to a first fixing portion and a second fixing portion that is next to the first fixing portion in a width direction,
a detection position of the detector is set between the first fixing portion and the second fixing portion in the width direction,
in the width direction, the detection position of the detector is set at a position closer to a midpoint between the first fixing portion and the second fixing portion in the width direction than to either of the first fixing portion and the second fixing portion.

### Claim 2 (depends on 1)

The medium heating device according to claim 1, wherein
the medium is a medium onto which liquid has been ejected.

### Claim 3 (depends on 1)

The medium heating device according to claim 1, wherein
the first fixing portion and the second fixing portion are in a same position in a transport direction of the medium,
the metal plate is fixed by a third fixing portion that is next to the first fixing portion in the transport direction, and
the detection position of the detector is set between the first fixing portion and the third fixing portion in the transport direction.

### Claim 4 (depends on 1)

The medium heating device according to claim 1, wherein
the detector detects a temperature of a portion of the metal plate protruding farther toward a side of the medium supported by the support portion than a portion of the metal plate fixed to the first fixing portion and the second fixing portion.

### Claim 5

A medium heating device comprising:
a support portion including a support face and configured to support a medium being transported;
a heating unit configured to heat the medium supported by the support portion;
a detector configured to detect a temperature of the support portion; and
a control unit configured to control an output of the heating unit, based on the temperature detected by the detector, wherein
the support portion includes a metal plate including a first surface as the support face,
an end portion of the metal plate is bent toward an opposite side from the first surface,
the metal plate is fixed to a first fixing portion and a second fixing portion that is next to the first fixing portion in a width direction,
a detection position of the detector is set between the first fixing portion and the second fixing portion in the width direction,
the first fixing portion and the second fixing portion are in a same position in a transport direction of the medium,
the metal plate is fixed by a third fixing portion that is next to the first fixing portion in the transport direction, and
the detection position of the detector is set between the first fixing portion and the third fixing portion in the transport direction.

### Claim 6 (depends on 5)

The medium heating device according to claim 5, wherein
in the transport direction, the detection position of the detector is set at a position closer to a midpoint between the first fixing portion and the third fixing portion in the transport direction than to either of the first fixing portion and the third fixing portion.

### Claim 7 (depends on 5)

The medium heating device according to claim 5, wherein
the detector detects a temperature of a portion of the metal plate protruding further toward a side of the medium supported by the support portion than a portion of the metal plate fixed to the first fixing portion and the third fixing portion.

### Claim 8

A liquid ejecting device comprising:
a support portion including a support face and configured to support a medium being transported;
a heating unit configured to heat the medium supported by the support portion;
a detector configured to detect a temperature of the support portion; and
a control unit configured to control an output of the heating unit, based on the temperature detected by the detector, wherein
the support portion includes a metal plate including a first surface as the support face,
an end portion of the metal plate is bent toward an opposite side from the first surface,
the metal plate is fixed by a first fixing portion and a second fixing portion that is next to the first fixing portion in a width direction, and
a detection position of the detector is set between the first fixing portion and the second fixing portion in the width direction,
in the width direction, the detection position of the detector is set at a position closer to a midpoint between the first fixing portion and the second fixing portion in the width direction than to either of the first fixing portion and the second fixing portion.