# US 12,594,776 B2 · Rolled paper printing device

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- Number: US 12,594,776 B2
- Document ID: US12594776B2
- Status: Granted
- Kind: B2
- Application number: 18/432,253
- Filed: 2024-02-05
- Published: 2024-08-08
- Granted: 2026-04-07
- Earliest claimed: 2023-02-06
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Shoichi Murata
- Web page: https://patentgrep.com/patent/US12594776B2

## CPC

- B41J 15/046: {for the guidance of continuous copy material, e.g. for preventing skewed conveyance of the continuous copy material}
- B41J 2/32: using thermal heads
- B41J 3/4075: {Tape printers; Label printers}
- B41J 11/04: Roller platens
- B41J 11/70: cutting perpendicular to the direction of paper feed
- B41J 15/02: Web rolls or spindles; Attaching webs to cores or spindles
- B41J 15/04: Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B41J 15/042: {for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material}
- B41J 29/13: Cases or covers
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

A rolled paper printing device includes a cover that opens/closes a case, a roller that draws out paper from rolled paper, a head for printing, a cutter that cuts the paper, and a paper guide mounted on the cover. When the cover is closed, a paper discharge port for discharging the paper is formed, and the paper guide includes a first guide that guides a first surface of the paper, a second guide that guides a second surface of the paper, a first opening into which the paper discharged from the paper discharge port is inserted, a second opening communicating with the first opening, the paper being taken out from the second opening, and a projection formed at the first guide and configured to come into contact with the first surface of the paper at a position downstream of the second opening in a transport direction.

## Claims

### Claim 1

A rolled paper printing device comprising:
a cover that opens/closes a case;
a roller that draws out paper from rolled paper stored in the case, and transports the paper in a transport direction;
a head that performs printing on the paper at a position facing the roller;
a cutter that cuts the paper at a position downstream of the head in the transport direction; and
a paper guide mounted on the cover, wherein
when the cover is closed, a paper discharge port for discharging the paper is formed between the cover and the case, and
the paper guide includes
a first guide that guides a first surface of the paper,
a second guide that guides a second surface of the paper,
a first opening into which the paper discharged from the paper discharge port is inserted,
a second opening communicating with the first opening, the paper being taken out from the second opening, and
a projection formed at the first guide and configured to come into contact with the first surface of the paper at a position downstream of the second opening in the transport direction, wherein
the second guide has an end portion forming the second opening,
the projection has a distal end and an inclined surface, and
when the paper is transported in the transport direction by the roller, the paper comes into contact with the end portion, rides on the inclined surface, and comes into contact with the distal end to be curved.

### Claim 2 (depends on 1)

The rolled paper printing device according to claim 1, wherein the paper cut by the cutter is supported by at least the end portion of the second guide and the distal end of the projection.

### Claim 3 (depends on 1)

The rolled paper printing device according to claim 1, wherein
the head and the roller nip the paper at a nip position, and
the end portion of the second guide is at a position lower than the nip position by a first distance, the distal end of the projection is at a position lower than the nip position by a second distance, and the first distance is smaller than the second distance.

### Claim 4 (depends on 1)

The rolled paper printing device according to claim 1, wherein the paper guide includes a third opening communicating with the first opening and configured such that the paper is taken out from the third opening in a direction different from the second opening.

### Claim 5 (depends on 1)

The rolled paper printing device according to claim 1, wherein
the second guide has an end portion forming the second opening,
the projection has a distal end and an inclined surface, and
when the paper is transported in the transport direction by the roller, the paper comes into contact with the end portion, rides on the inclined surface, and comes into contact with the distal end to be curved.

### Claim 6

A rolled paper printing device comprising:
a cover that opens/closes a case;
a roller that draws out paper from rolled paper stored in the case, and transports the paper in a transport direction;
a head that performs printing on the paper at a position facing the roller;
a cutter that cuts the paper at a position downstream of the head in the transport direction; and
a paper guide mounted on the cover, wherein
when the cover is closed, a paper discharge port for discharging the paper is formed between the cover and the case, and
the paper guide includes
a first guide that guides a bottom surface of the paper,
a second guide that guides a top surface of the paper, wherein the second guide is above the first guide,
a first opening into which the paper discharged from the paper discharge port is inserted,
a second opening communicating with the first opening, the paper being taken out from the second opening, and
a projection formed at the first guide and configured to come into contact with the first surface of the paper at a position downstream of the second opening in the transport direction.