# US 10,864,751 B2 · Inkjet recording apparatus

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- Number: US 10,864,751 B2
- Document ID: US10864751B2
- Status: Granted
- Kind: B2
- Application number: 16/827,514
- Filed: 2020-03-23
- Published: 2020-07-09
- Granted: 2020-12-15
- Earliest claimed: 2017-05-26
- Assignees: KYOCERA Document Solutions Inc.
- Applicants: KYOCERA Document Solutions Inc.
- Inventors: Hiroyuki Ueda; Susumu Hiroshima; Takeshi Watanabe; Takatoshi Nishimura; Hiroatsu Tamai; Noriaki Ozawa; Toyotsune Inoue
- Web page: https://patentgrep.com/patent/US10864751B2

## CPC

- B41J 11/0005: {Curl smoothing, i.e. smoothing down corrugated printing material, e.g. by pressing means acting on wrinkled printing material}
- B41J 2/125: Sensors, e.g. deflection sensors {(nozzle clogging detection for cleaning reasons B41J2/16579; detection for compensation for failed nozzles B41J2/2139)}
- B41J 11/0024: {using conduction means, e.g. by using a heated platen}
- B41J 11/0045: {Guides for printing material (curl smoothing B41J11/0005; platens B41J11/02, B41J11/06; guiding webs B41J15/046)}
- B65H 29/125: {between two sets of rollers}
- B65H 29/60: diverting the stream into alternative paths (B65H29/62 takes precedence)
- B65H 29/70: Article bending or stiffening arrangements
- B41J 3/60: for printing on both faces of the printing material
- B65H 2301/33312: forward reverse rollers pairs
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

## Abstract

An inkjet recording apparatus includes an image forming section, a roller, a heat source, a calculator, a determination section, and a controller. The determination section determines to activate the heat source when an ink ejection amount calculated by the calculator is larger than a specific reference amount. When the determination section determines to activate the heat source, the controller activates the heat source. When temperature of the roller is equal to or higher than a specific temperature, the controller controls the image forming section to form the image on the sheet.

## Claims

### Claim 1

An inkjet recording apparatus comprising:
an image forming section configured to form an image on a sheet;
a first roller configured to convey the sheet;
a first heat source configured to heat the first roller;
a calculator configured to calculate an ink ejection amount of ink to be ejected toward the sheet;
a determination section configured to determine whether or not to activate the first heat source based on a calculation result of the calculator; and
a controller configured to control the first heat source and the image forming section based on a determination result of the determination section, wherein
the determination section determines to activate the first heat source when the ink ejection amount calculated by the calculator is larger than a specific reference amount,
when the determination section determines to activate the first heat source, the controller activates the first heat source, and
when temperature of the first roller is equal to or higher than a specific temperature, the controller controls the image forming section to form the image on the sheet.

### Claim 2 (depends on 1)

The inkjet recording apparatus according to claim 1, further comprising
a rotary member supported in a rotatable manner, wherein
the first roller and the rotary member rotate while holding the sheet therebetween to convey the sheet.

### Claim 3 (depends on 2)

The inkjet recording apparatus according to claim 2, wherein
the rotary member is a second roller.

### Claim 4 (depends on 2)

The inkjet recording apparatus according to claim 2, wherein
the rotary member is a belt.

### Claim 5 (depends on 2)

The inkjet recording apparatus according to claim 2, wherein
when the first roller and the rotary member hold the sheet therebetween, the first roller is located opposite to an image formation side of the sheet, and
the image formation side is a side of the sheet on which the image has been formed.

### Claim 6 (depends on 2)

The inkjet recording apparatus according to claim 2, further comprising
a second heat source configured to heat the rotary member.

### Claim 7 (depends on 6)

The inkjet recording apparatus according to claim 6, wherein
the rotary member is a second roller, and
the second heat source is disposed at the second roller.

### Claim 8 (depends on 6)

The inkjet recording apparatus according to claim 6, further comprising
a second roller in contact with the rotary member, wherein
the rotary member is a belt, and
the second heat source is disposed at the second roller.