# US 12,600,152 B2 · Liquid discharge apparatus

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- Number: US 12,600,152 B2
- Document ID: US12600152B2
- Status: Granted
- Kind: B2
- Application number: 18/534,278
- Filed: 2023-12-08
- Published: 2024-06-27
- Granted: 2026-04-14
- Earliest claimed: 2022-12-26
- Assignees: Ricoh Company, Ltd.
- Applicants: Satoshi Ueno
- Inventors: Satoshi Ueno
- Web page: https://patentgrep.com/patent/US12600152B2

## CPC

- B41J 2/1714: {Conditioning of the outside of ink supply systems, e.g. inkjet collector cleaning, ink mist removal (B41J2/08, B41J2/16517, B41J2/18 take precedence)}
- B41J 29/377: Cooling or ventilating arrangements
- B41J 2/04541: {Specific driving circuit}
- B41J 2/04586: {controlling heads of a type not covered by groups B41J2/04575 - B41J2/04585, or of an undefined type}
- B41J 29/02: Framework
- B41J 29/13: Cases or covers
- B41M 5/0017: {Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying}
- 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

A liquid discharge apparatus includes a liquid discharge head, an electronic board, circuitry, and an isolator. The liquid discharge head discharges liquid downward. The circuitry on the electronic board controls the liquid discharge head. The isolator is disposed between the liquid discharge head and the electronic board to isolate the liquid discharge head from the electronic board. The isolator includes a first isolator and a second isolator. The first isolator surrounds four lateral sides of the liquid discharge head. The second isolator contacts the first isolator and surrounds the four lateral sides above the liquid discharge head.

## Claims

### Claim 1

A liquid discharge apparatus comprising:
a liquid discharge head configured to discharge a liquid downward;
an electronic board;
circuitry on the electronic board to control the liquid discharge head;
an isolator between the liquid discharge head and the electronic board to isolate the liquid discharge head from the electronic board, the isolator including:
a first isolator surrounding four lateral sides of the liquid discharge head, and
a second isolator contacting the first isolator, the second isolator surrounding the four lateral sides above the liquid discharge head;
a body accommodating the liquid discharge head and the electronic board; and
a cover to openably close the body,
wherein the isolator contacts the cover at a closed position, and
wherein the cover at the closed position and the isolator surround the four lateral sides and an upper side of the liquid discharge head from the electronic board.

### Claim 2 (depends on 1)

The liquid discharge apparatus according to claim 1, further comprising an airflow generator inside the isolator to generate an airflow circulating inside the isolator.

### Claim 3 (depends on 1)

The liquid discharge apparatus according to claim 1,
wherein the second isolator has elasticity.

### Claim 4 (depends on 1)

The liquid discharge apparatus according to claim 1, further comprising another liquid discharge head to discharge a pretreatment liquid,
wherein the isolator isolates said another liquid discharge head from the electronic board.

### Claim 5 (depends on 1)

The liquid discharge apparatus according to claim 1, further comprising multiple liquid discharge heads including the liquid discharge head,
wherein the isolator isolates at least one of the multiple liquid discharge heads from the electronic board.