Printing apparatus and printing method

Patent metadata

Field	Value
Publication number	US-11993073-B2
Application number	US-202318104004-A
Country	US
Kind code	B2
Filing date	Jan 31, 2023
Priority date	Dec 27, 2019
Publication date	May 28, 2024
Grant date	May 28, 2024

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 rotatably hold a roll sheet;
a conveyance roller configured to convey the roll sheet in a first direction;
a printing unit configured to perform printing on the roll sheet conveyed by the conveyance roller;
a cover unit configured to cover at least a part of the printing unit and not to cover the holding unit; and
a display unit configured to, in a case in which a jam of the roll sheet has occurred, display an instruction to cut a loop of the roll sheet formed between the holding unit and the printing unit and formed outside of the cover unit,
wherein the loop is convex upward.

2. The printing apparatus according to claim 1 , wherein the loop is formed upstream of the printing unit with respect to the first direction.

3. The printing apparatus according to claim 1 ,
wherein the loop is formed between the holding unit and the conveyance roller.

4. The printing apparatus according to claim 1 , wherein the loop is formed by supplying the roll sheet from the holding unit toward the printing unit.

5. The printing apparatus according to claim 1 , further comprising:
a detecting unit configured to detect occurrence of the jam.

6. The printing apparatus according to claim 1 , further comprising:
a cutting unit, arranged downstream of the printing unit in the first direction, configured to cut the roll sheet.

7. The printing apparatus according to claim 1 , further comprising:
a carriage on which the printing unit is mounted, and configured to move in a scanning direction crossing the first direction.

8. The printing apparatus according to claim 7 , wherein, in a case in which the carriage does not move normally, the display unit displays the instruction.

9. The printing apparatus according to claim 1 , wherein the printing apparatus does not include a cover that covers the roll sheet held by the holding unit.

10. The printing apparatus according to claim 7 , further comprising a cutting unit configured to cut the roll sheet,
wherein the cutting unit has an engaging part engaging with the carriage.

11. The printing apparatus according to claim 10 , wherein the cutting unit moves in the scanning direction by engaging the engaging part with the carriage.

12. The printing apparatus according to claim 1 , wherein the display unit displays a display item for being pressed by a user in a case in which the jam has occurred.

13. The printing apparatus according to claim 1 , wherein the printing unit performs printing in a state in which the roll sheet held by the holding unit is not covered.

14. The printing apparatus according to claim 1 , wherein the display unit displays the instruction in response to an operation by a user after the jam has occurred.

15. The printing apparatus according to claim 14 , wherein the operation includes pressing a display item displayed on the display unit.

16. The printing apparatus according to claim 1 , wherein the printing unit performs printing by ejecting ink.

17. The printing apparatus according to claim 16 , further comprising:
a carriage on which the printing unit is mounted and configured to move.

18. The printing apparatus according to claim 17 , wherein the carriage mounts a tank configured to store ink supplied to the printing unit.

19. A control method of a printing apparatus comprising a holding unit configured to rotatably hold a roll sheet, a conveyance roller configured to convey the roll sheet in a first direction, a printing unit configured to perform printing on the roll sheet conveyed by the conveyance roller, and a cover unit configured to cover at least a part of the printing unit and not to cover the holding unit, the control method comprising:
displaying an instruction to cut a loop of the roll sheet formed between the holding unit and the printing unit and formed outside of the cover unit in a case in which a jam of the roll sheet has occurred,
wherein the loop is convex upward.

20. The control method according to claim 19 , further comprising:
detecting occurrence of the jam.

Assignees

• Canon Kk

Inventors

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

Classifications

• B41J11/006 Primary

  Means for preventing paper jams or for facilitating their removal · CPC title

• B41J11/0095

  Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end · CPC title

• B41J11/663

  Controlling cutting, cutting resulting in special shapes of the cutting line, e.g. controlling cutting positions, e.g. for cutting in the immediate vicinity of a printed image · 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