Recording device

Patent metadata

Field	Value
Publication number	US-12441130-B2
Application number	US-202318151030-A
Country	US
Kind code	B2
Filing date	Jan 6, 2023
Priority date	Jan 7, 2022
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

A recording device includes a medium receiving tray that receives a medium ejected by an ejection roller, the medium receiving tray being capable of taking a first state and a second state displaced from the first state in an ejection direction, a power transmission section that can take a power transmission state in which power of the motor is transmitted to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted, the power transmission section including a friction gear as a power transmission path member, a switching lever section that moves the carriage to switch the power transmission section between the power non-transmission state and the power transmission state, and a holding portion that holds a position of the switching lever section.

First claim

What is claimed is:

1. A recording device, comprising:
a recording head that performs recording on a medium mounted on a carriage;
an ejection roller that ejects the medium on which the recording is performed;
a medium receiving tray that receives the medium ejected by the ejection roller, the medium receiving tray taking a first state and a second state displaced from the first state in an ejection direction of the medium;
a motor that is a power source of the ejection roller;
a power transmission section that takes a power transmission state in which power of the motor is transmitted to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted to the medium receiving tray, the power transmission section including a friction gear as a power transmission path member;
a switching lever section that switches the power transmission section between the power non-transmission state and the power transmission state by movement of the carriage; and
a holding portion that holds a position of the switching lever section, wherein
the switching lever section has a pin projecting toward the holding portion,
the holding portion has a cam portion, and
when the pin moves at the cam portion in one direction, the power transmission switching section switches between the power non-transmission state and the power transmission state.

2. The recording device according to claim 1 , wherein
the cam portion has a first cam position, a second cam position, a third cam position, and a fourth cam position on a circumferential locus,
the cam portion is pushed by a spring member for the holding portion in a direction in which the cam portion maintains a contact state with the pin, and
the cam portion is formed so that the pin is configured to move only in a direction of order of the first cam position, the second cam position, the third cam position, the fourth cam position, and the first cam position on the circumferential locus.

3. The recording device according to claim 2 , wherein
the switching lever section moves by receiving power of the carriage and shifts from a state in which the pin comes into contact with the fourth cam position to a state in which the pin comes into contact with the first cam position and then a state in which the pin comes into contact with the second cam position, and
after the switching lever section shifts to the state in which the pin comes into contact with the second cam position, when the switching lever section is released from the power of the carriage, the pin returns to the fourth cam position through the third cam position by a spring force of a spring member for the switching lever section.

4. The recording device according to claim 3 , wherein
the state in which the pin of the switching lever section comes into contact with the first cam position creates the power non-transmission state, and the state in which the pin comes into contact with the fourth cam position creates the power transmission state.

5. The recording device according to claim 2 , further comprising a rotation stopping section that moves, in the power non-transmission state, to a position where a rotation of the friction gear is stopped and is separated, in the power transmission state, from the position where the rotation of the friction gear is stopped.

6. The recording device according to claim 5 , further comprising:
a first rack portion that is provided in the switching lever section;
a second rack portion that is provided in the rotation stopping section; and
a release gear that meshes with the first rack portion and the second rack portion, wherein
when the switching lever section is moved by the carriage to move the pin from the first cam position to the second cam position, movement of the first rack portion rotates the release gear, the rotation of the release gear moves the second rack portion in a direction opposite to a moving direction of the first rack portion to cause the rotation stopping section to be separated from a position where the rotation of the friction gear is stopped.

7. The recording device according to claim 6 , wherein
when the switching lever section is released from power of the carriage and the pin moves from the second cam position to the third cam position,
the first rack portion rotates the release gear in an opposite direction, and the rotation of the release gear moves the second rack portion in an opposite direction to move the rotation stopping section to the position where the rotation of the friction gear is stopped, and
when the pin moves from the third cam position to the fourth cam position, the first rack portion is separated from the release gear, and the second rack portion is pushed and moves by the switching lever section to cause the rotation stopping section to be separated from the position where the rotation of the friction gear is stopped.

8. The recording device according to claim 7 , further comprising:
a taper that is formed at a side surface of the second rack portion; and
a contacted portion that takes, depending on a position where the second rack portion moves, a contact state in which the taper comes into contact and a non-contact state in which the taper does not come into contact, wherein
the taper is in the non-contact state in a state in which the pin is at the first cam position, and the taper is in the contact state in a state in which the pin is at the fourth cam position.

9. A recording device, comprising:
a recording head that performs recording on a medium mounted on a carriage reciprocating between a first direction and a second direction opposite to the first direction;
an ejection roller that ejects the medium on which the recording is performed;
a medium receiving tray that receives the medium ejected by the ejection roller, the medium receiving tray taking a first state and a second state displaced from the first state in an ejection direction of the medium;
a motor that is a power source of the ejection roller;
a power transmission section that takes a power transmission state in which power of the motor is transmitted to the medium receiving tray and a power non-transmission state in which the power of the motor is not transmitted to the medium receiving tray, the power transmission section including a friction gear as a power transmission path member;
a switching lever section that switches the power transmission section between the power non-transmission state and the power transmission state by movement of the carriage; and
a holding portion that holds a position of the switching lever section, wherein
the carriage moves in the first direction when the switching lever section switches from the power non-transmission state to the power transmission state and when the switching lever section switches from the power transmission state to the power non-transmission state,
the switching lever section has a pin projecting toward the holding portion,
the holding portion has a cam portion, and
when the pin moves at the cam portion in one direction, the power transmission switching section switches between the power non-transmission state and the power transmission state.

10. The recording device according to claim 9 , wherein
the cam portion has a first cam position, a second cam position, a third cam position, and a fourth cam position on a circumferential locus,
the cam portion is pushed by a spring member for the holding portion in a direction in which the cam portion maintains a contact state with the pin, and
the cam portion is formed so that the pin is configured to move only in a direction of order of the first cam position, the second cam positio

Assignees

• Seiko Epson Corp

Inventors

• Minemura Hidefumi
• Sasaki Keisuke
• Oki Narihiro

Classifications

• B65H1/025

  with controlled positively-acting mechanical devices for advancing the pile to present the articles to the separating device · CPC title

• B41J11/00

  Devices or arrangements  {of selective printing mechanisms, e.g. ink-jet printers or thermal printers,} for supporting or handling copy material in sheet or web form (script supports connected to the typewriter or printer B41J29/15) · CPC title

• B65H2801/03

  Image reproduction devices · CPC title

• B65H2701/10

  Handled articles or webs · CPC title

• B65H29/20

  by contact with rotating friction members, e.g. rollers, brushes, or cylinders {(with suction rollers B65H29/243)} · CPC title