Recording apparatus

Patent metadata

Field	Value
Publication number	US-12208629-B2
Application number	US-202218045215-A
Country	US
Kind code	B2
Filing date	Oct 10, 2022
Priority date	Oct 12, 2021
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

A recording apparatus includes a conveyance unit, a carriage, a recording head, a frame, and a guide member. The conveyance unit conveys a sheet in a conveyance direction. The carriage moves in a scanning direction crossing the conveyance direction and has a first abutment portion and a second abutment portion higher in position than the first abutment portion. The recording head is mounted on the carriage, arranged to face a sheet conveyed by the conveyance unit, and ejects a liquid onto the conveyed sheet to record an image. The frame has a first sliding portion in abutment with the first abutment portion and has a second sliding portion in abutment with the second abutment portion. The guide member supports the carriage and is fixed to the frame at a position separated from the first sliding portion.

First claim

What is claimed is:

1. A recording apparatus comprising:
a conveyance unit configured to convey a sheet in a conveyance direction;
a carriage configured to move in a scanning direction crossing the conveyance direction and having a first abutment portion and a second abutment portion higher in position than the first abutment portion;
a recording head mounted on the carriage, arranged to face a sheet conveyed by the conveyance unit, and configured to eject a liquid onto the conveyed sheet to record an image;
a frame having a first sliding portion in abutment with the first abutment portion and having a second sliding portion in abutment with the second abutment portion;
a guide member that is configured to support the carriage and is fixed to the frame at a position separated from the first sliding portion; and
a sliding body configured to support the carriage in abutment with a guide surface of the guide member,
wherein the carriage includes a movement restriction portion configured to restrict a movement of the carriage, and
wherein the guide member is disposed between the movement restriction portion and the sliding body.

2. The recording apparatus according to claim 1 , wherein the first sliding portion is subjected to a force in a direction opposite to the conveyance direction from the carriage, and the second sliding portion is subjected to a force in the conveyance direction from the carriage.

3. The recording apparatus according to claim 1 , wherein a fastening surface where the guide member and the frame are fastened to each other is parallel to a sliding surface of the first sliding portion and a sliding surface of the second sliding portion.

4. The recording apparatus according to claim 3 , wherein the frame has an escape hole into which the second abutment portion escapes at a time of assembly of the carriage into the frame.

5. The recording apparatus according to claim 1 , further comprising a first side plate at one end of the frame and a second side plate at the other end of the frame in the scanning direction,
wherein the first sliding portion and the second sliding portion of the frame are fixed by the first side plate and the second side plate.

6. The recording apparatus according to claim 5 , wherein the first sliding portion, the second sliding portion, the first side plate, and the second side plate are formed from one member.

7. The recording apparatus according to claim 1 , further comprising a platen facing the recording head,
wherein at least one of the guide member and the frame includes an adjustment portion configured to adjust a space between the platen and the recording head before the guide member is fastened to the frame.

8. A recording apparatus comprising:
a conveyance unit configured to convey a sheet in a conveyance direction;
a carriage configured to move in a scanning direction crossing the conveyance direction and having a first abutment portion and a second abutment portion higher in position than the first abutment portion;
a recording head mounted on the carriage, arranged to face a sheet conveyed by the conveyance unit, and configured to eject a liquid onto the conveyed sheet to record an image;
a frame having a first sliding portion in abutment with the first abutment portion and having a second sliding portion in abutment with the second abutment portion; and
a guide member that is configured to support the carriage and is fixed to the frame at a position separated from the first sliding portion;
wherein a guide surface of the guide member is inclined upward with respect to the conveyance direction and supports the carriage.

9. The recording apparatus according to claim 8 , further comprising a sliding body configured to support the carriage in abutment with a guide surface of the guide member.

10. The recording apparatus according to claim 8 , wherein the first sliding portion is subjected to a force in a direction opposite to the conveyance direction from the carriage, and the second sliding portion is subjected to a force in the conveyance direction from the carriage.

11. The recording apparatus according to claim 8 , wherein a fastening surface where the guide member and the frame are fastened to each other is parallel to a sliding surface of the first sliding portion and a sliding surface of the second sliding portion.

12. A recording apparatus comprising:
a conveyance unit configured to convey a sheet in a conveyance direction;
a carriage configured to move in a scanning direction crossing the conveyance direction and having a first abutment portion and a second abutment portion higher in position than the first abutment portion;
a recording head mounted on the carriage, arranged to face a sheet conveyed by the conveyance unit, and configured to eject a liquid onto the conveyed sheet to record an image;
a frame having a first sliding portion in abutment with the first abutment portion and having a second sliding portion in abutment with the second abutment portion; and
a guide member that is configured to support the carriage and is fixed to the frame at a position separated from the first sliding portion;
wherein the carriage includes a rotation restriction portion configured to restrict rotation of the carriage at a position separated from the second abutment portion in the scanning direction, and
wherein the second sliding portion of the frame is disposed between the second abutment portion and the rotation restriction portion in the conveyance direction.

13. The recording apparatus according to claim 12 , wherein the second sliding portion has a cutout portion in an area corresponding to the rotation restriction portion at a time of assembly of the carriage into the frame.

14. The recording apparatus according to claim 12 , further comprising a sliding body configured to support the carriage in abutment with a guide surface of the guide member.

15. The recording apparatus according to claim 12 , wherein the first sliding portion is subjected to a force in a direction opposite to the conveyance direction from the carriage, and the second sliding portion is subjected to a force in the conveyance direction from the carriage.

16. The recording apparatus according to claim 12 , wherein a fastening surface where the guide member and the frame are fastened to each other is parallel to a sliding surface of the first sliding portion and a sliding surface of the second sliding portion.

Assignees

• Canon Kk

Inventors

• Maruyama Taiji
• Kohnotoh Atsushi
• Takanaka Yasuyuki
• Sakurai Norio
• Abe Takashi
• Tanaka Kousuke
• Naratani Yusuke
• Yamaguchi Shuhei

Classifications

• B41J29/02

  Framework · CPC title

• B41J19/00

  Character- or line-spacing mechanisms · CPC title

• B41J25/304 Primary

  Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface · CPC title