Printing apparatus and printing method

Patent metadata

Field	Value
Publication number	US-11590777-B2
Application number	US-202017124109-A
Country	US
Kind code	B2
Filing date	Dec 16, 2020
Priority date	Dec 27, 2019
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

A printing apparatus that includes a holding unit configured to hold a roll sheet performs supplying the sheet by rotating the roll sheet held by the holding unit; nipping and conveying the supplied sheet; performing printing on the conveyed sheet; detecting occurrence of a print medium jam of the sheet; and, if the printing apparatus has detected a print medium jam of the sheet, performing a control process of supplying the sheet in a state in which the conveying is stopped.

First claim

What is claimed is:

1. A printing apparatus comprising:
a holding unit configured to hold a roll sheet;
a supply unit configured to supply a sheet from the roll sheet by rotating the roll sheet held by the holding unit;
a conveying unit configured to nip and convey the sheet supplied from the supply unit;
a printing unit configured to perform printing on the sheet conveyed from the conveying unit;
a cover unit configured to cover at least a part of the printing unit and not to cover the holding unit;
a detecting unit configured to detect occurrence of a print medium jam of the sheet;
a control unit configured to, in a case in which the detecting unit has detected a print medium jam of the sheet, control the supplying unit and the conveying unit in a control process to form a loop of the sheet between the holding unit and the conveying unit and outside of the cover unit; and
a notifying unit configured to cause a notification device to provide a notification to a user to promote cutting the loop of the sheet after the control unit performs the control process and the loop of the sheet is formed.

2. The apparatus according to claim 1 , further comprising an acceptance unit configured to accept a user instruction,
wherein in a case in which the detecting unit has detected a print medium jam of the sheet and the acceptance unit has accepted a user instruction, the control unit performs the control process.

3. The apparatus according to claim 2 , further comprising a display unit configured to display a screen to select a jam process method.

4. The apparatus according to claim 1 , further comprising a paper edge determination unit configured to determine a position of a leading end of the sheet in a conveying direction,
wherein in a case in which the detecting unit has detected a print medium jam of the sheet and the paper edge determination unit determines that the leading end of the sheet in the conveying direction is located at a predetermined position, the control unit performs the control process.

5. The apparatus according to claim 1 , further comprising a cutting unit, arranged downstream of the printing unit in the conveying direction of the sheet, configured to cut the sheet,
wherein in a case in which the detecting unit has detected a print medium jam of the sheet and a cutting process performed by the cutting unit is terminated as an error, the control unit performs the control process.

6. The apparatus according to claim 5 , further comprising a carriage on which the printing unit is mounted, and configured to move in a widthwise direction intersecting the conveying direction of the sheet,
wherein the cutting unit can move in the widthwise direction by being pulled by the carriage.

7. The apparatus according to claim 6 , wherein in a case in which the detecting unit has detected a print medium jam of the sheet and the carriage does not move normally, the control unit performs the control process.

8. The apparatus according to claim 5 , wherein
the cutting unit includes a cutter and a motor that moves the cutter, and
the cutter is moved by the motor in a direction intersecting the conveying direction of the sheet.

9. The apparatus according to claim 8 , wherein in a case in which the detecting unit has detected a print medium jam of the sheet and the cutting unit does not move normally, the control unit performs the control process.

10. The apparatus according to claim 1 , wherein the cover unit is provided so as to partially cover a region on a downstream side of the printing unit in the conveying direction of the sheet.

11. The apparatus according to claim 1 , further comprising an operation panel, wherein the notification device is the operation panel.

12. The apparatus according to claim 1 , wherein in a case in which the detecting unit has detected a print medium jam of the sheet, the control unit performs a control process of supplying the sheet by the supply unit in a state in which the conveying unit is stopped.

13. A printing method of a printing apparatus comprising a holding unit configured to hold a roll sheet, a printing unit configured to perform printing on a sheet from the roll sheet, and a cover unit configured to cover at least a part of the printing unit and not to cover the holding unit, comprising:
supplying a sheet from the roll sheet by a supply unit by rotating the roll sheet held by the holding unit;
conveying the sheet by a conveying unit nipping the sheet supplied from the supply unit;
printing, by the printing unit, on the sheet conveyed from the conveying unit;
detecting occurrence of a print medium jam of the sheet by a detecting unit;
controlling, in a case in which a print medium jam of the sheet has been detected in the detecting, the supply unit so as to form a loop of the sheet between the holding unit and the conveying unit and outside of the cover unit; and
causing a notification to a user to promote cutting the loop of the sheet after the controlling.

Assignees

• Canon Kk

Inventors

• Suzuki Yoshiaki
• Yoneyama Hiromasa
• Maruyama Ryohei
• Wada Itaru
• Abe Tomohito
• Obata Tsutomu
• Aoki Noriyuki
• Asai Yasuyuki

Classifications

• G07B5/08

  for avoiding incorrect action of the machine · CPC title

• B65H26/02

  responsive to presence of irregularities in running webs · CPC title

• B41J15/08

  characterised by being applied to printers having transversely- moving carriages · CPC title

• B41J11/706

  using a cutting tool mounted on a reciprocating carrier · CPC title

• B65H7/06

  responsive to presence of faulty articles or incorrect separation or feed (B65H7/14 takes precedence) · CPC title