Recording device

Patent metadata

Field	Value
Publication number	US-12122151-B2
Application number	US-202117328079-A
Country	US
Kind code	B2
Filing date	May 24, 2021
Priority date	May 25, 2020
Publication date	Oct 22, 2024
Grant date	Oct 22, 2024

Abstract

A recording device includes a transport unit, a medium supporting member, and a recording head. The transport unit includes transport roller pairs and discharge roller pairs. The discharge roller pair includes a discharge driving roller and discharge driven rollers provided downstream of the medium supporting member in a transport direction. The transport unit includes a first roller and a second roller, which are an example of a guide roller provided downstream of the medium supporting member in the transport direction and on the same upper side as the discharge driven roller with respect to a transport path of a medium. The first roller and the second roller are provided on either side of the discharge roller pair in the transport direction, and a lower end of at least one of the first roller and the second roller is positioned lower than an upper end of the discharge driving roller.

First claim

What is claimed is:

1. A recording device comprising:
a transport unit that transports a medium along a horizontal direction in a transport direction;
a medium supporting member that includes a supporting surface supporting the medium; and
a recording head that performs recording on the medium at a position facing the medium supporting member,
wherein the transport unit includes:
a transport roller pair formed of a transport driving roller and a transport driven roller provided upstream of the medium supporting member in the transport direction,
a discharge roller pair formed of a discharge driving roller and a discharge driven roller provided downstream of the medium supporting member in the transport direction, and
guide rollers provided downstream of the medium supporting member in the transport direction, and on the same upper side as the discharge driven roller with respect to a transport path of the medium, and driven to rotate by contact with the medium during transport,
the guide rollers are provided on both sides of the discharge roller pair in the transport direction,
at least one of the guide rollers is a first roller disposed upstream of the discharge roller pair in the transport direction, and at least one of the guide rollers is a second roller provided downstream of the discharge roller pair in the transport direction, and
a lower end of the second roller is positioned lower than the upper end of the discharge driving roller,
wherein a lower end of the first roller is positioned lower than the upper end of the discharge driving roller,
wherein positions of the first roller and the second roller are the same in the width direction.

2. The recording device according to claim 1 ,
wherein a difference between a first overlap amount, in a vertical direction, between the second roller and the discharge driving roller and a second overlap amount, in the vertical direction, between the first roller and the discharge driving roller is no greater than the first overlap amount.

3. The recording device according to claim 1 , wherein
the second roller is disposed in a position corresponding, in the width direction, to a position between the discharge roller pair and an adjacent discharge roller pair.

4. The recording device according to claim 1 , wherein
the medium supporting member alternately includes ribs and recessed regions in the width direction, the ribs including the supporting surface supporting the medium and the recessed regions being formed in regions other than the ribs, and
a position of the second roller in the width direction is the same as a position of the recessed regions.

5. The recording device according to claim 1 , comprising:
a pressing member configured to press the medium to a position lower than the supporting surface of the medium supporting member, at a position upstream of a recording position of the recording head in the transport direction, wherein
the second roller is disposed at a position that is the same, in the width direction, as a position of the pressing member.

6. The recording device according to claim 1 , wherein
the guide rollers are also provided on both sides of the discharge driving roller in the width direction, and
a lower end of at least one of the guide rollers positioned on both sides of the discharge driving roller in the width direction is positioned lower than an upper end of the discharge driving roller.

7. A recording device comprising:
a transport unit that transports a medium along a horizontal direction in a transport direction;
a medium supporting member that includes a supporting surface supporting the medium; and
a recording head that performs recording on the medium at a position facing the medium supporting member,
wherein the transport unit includes:
a transport roller pair formed of a transport driving roller and a transport driven roller provided upstream of the medium supporting member in the transport direction,
a discharge roller pair formed of a discharge driving roller and a discharge driven roller provided downstream of the medium supporting member in the transport direction, and
guide rollers provided downstream of the medium supporting member in the transport direction, and on the same upper side as the discharge driven roller with respect to a transport path of the medium, and driven to rotate by contact with the medium during transport,
the guide rollers are provided on both sides of the discharge roller pair in the transport direction,
at least one of the guide rollers is a first roller disposed upstream of the discharge roller pair in the transport direction, and at least one of the guide rollers is a second roller provided downstream of the discharge roller pair in the transport direction, and
a lower end of the second roller is positioned lower than the upper end of the discharge driving roller, wherein
the first roller is urged downward by a first urging force while being upwardly displaceable, and the second roller is urged downward by a second urging force while being upwardly displaceable,
the discharge driven roller is urged downward toward the discharge driving roller by a third urging force while being upwardly displaceable, and
the first urging force of the first roller and the second urging force of the second roller are smaller than the third urging force of the discharge driven roller.

8. A recording device comprising:
a transport unit that transports a medium along a horizontal direction in a transport direction;
a medium supporting member that includes a supporting surface supporting the medium; and
a recording head that performs recording on the medium at a position facing the medium supporting member,
wherein the transport unit includes:
a transport roller pair formed of a transport driving roller and a transport driven roller provided upstream of the medium supporting member in the transport direction,
a discharge roller pair formed of a discharge driving roller and a discharge driven roller provided downstream of the medium supporting member in the transport direction. and
guide rollers provided downstream of the medium supporting member in the transport direction, and on the same upper side as the discharge driven roller with respect to a transport path of the medium, and driven to rotate by contact with the medium during transport,
the guide rollers are provided on both sides of the discharge roller pair in the transport direction,
at least one of the guide rollers is a first roller disposed upstream of the discharge roller pair in the transport direction, and at least one of the guide rollers is a second roller provided downstream of the discharge roller pair in the transport direction, and
a lower end of the second roller is positioned lower than the upper end of the discharge driving roller, wherein
a second distance, in the transport direction, between the second roller and the upper end of the discharge driving roller is shorter than a first distance, in the transport direction, between the first roller and the upper end of the discharge driving roller.

Assignees

• Seiko Epson Corp

Inventors

• Yoshino Satoshi
• Saito Kazuo
• Tamai Kensuke

Classifications

• B41J13/025

  Special roller holding or lifting means, e.g. for temporarily raising one roller of a pair of nipping rollers for inserting printing material · CPC title

• B41J13/0036

  in the output section of automatic paper handling systems · CPC title

• B41J13/076

  Construction of rollers; Bearings therefor · CPC title

• B41J13/0018

  in the sheet input section of automatic paper handling systems · CPC title

• B41J11/08

  Bar or like line-size platens · CPC title