Printing apparatus, control method, and non-transitory computer-readable storage medium

Patent metadata

Field	Value
Publication number	US-11667138-B2
Application number	US-202117186259-A
Country	US
Kind code	B2
Filing date	Feb 26, 2021
Priority date	Mar 5, 2020
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

An apparatus includes a printing unit, a conveyance unit including first and second rotating members that nip and convey the sheet, and configured to hold the sheet by temporarily stopping the conveyance before completion of discharge of the sheet, a detection unit configured to detect a rotation of the first rotating member, a determination unit configured to determine whether the sheet has been pulled in a discharge direction based on a detection result of the detection unit in a case where the conveyance unit holds the sheet, and a control unit configured to, if the determination unit determines that the sheet has been pulled in the discharge direction, cause the conveyance unit to perform a discharging process of the sheet.

First claim

What is claimed is:

1. A printing apparatus comprising:
a printing unit configured to perform printing on a sheet;
a conveyance unit including a first rotating member and a second rotating member that nip and convey the sheet in a first direction, and configured to hold the sheet, after completion of printing by the printing unit, by temporarily stopping the conveyance before completion of discharge of the sheet;
a detection unit configured to detect a rotation of the first rotating member; and
a control unit configured to, in a case in which the detection unit detects rotation of the first rotating member in a state in which the sheet is held by the conveyance unit, cause the conveyance unit to perform a discharging process of the sheet.

2. The apparatus according to claim 1 , further comprising a sheet detection unit configured to detect an end of the sheet with respect to the first direction,
wherein the conveyance unit temporarily stops the conveyance of the sheet before a trailing end of the sheet passes a detection position of the sheet detection unit.

3. The apparatus according to claim 1 , further comprising a sheet detection unit configured to detect an end of the sheet with respect to the first direction,
wherein if in a case in which the conveyance of the sheet is temporarily stopped after a trailing end of the sheet has passed a detection position of the sheet detection unit, the conveyance unit conveys the sheet in a second direction opposite to the first direction such that the trailing end of the sheet is located upstream of the detection position with respect to the first direction.

4. The apparatus according to claim 1 , further comprising a notification unit configured to, notify a user to pull the sheet in a state in which the sheet is held by the conveyance unit.

5. The apparatus according to claim 1 , wherein
the discharging process is a process of restarting the conveyance of the sheet by the conveyance unit.

6. The apparatus according to claim 1 , wherein
the discharging process is a process of releasing hold of the sheet by the conveyance unit.

7. The apparatus according to claim 1 , wherein
the first rotating member and the second rotating member are provided upstream of the printing unit with respect to the first direction.

8. The apparatus according to claim 1 , wherein
the first rotating member and the second rotating member are provided on a downstream side of the printing unit with respect to the first direction of the conveyance unit.

9. The apparatus according to claim 1 , wherein the control unit notifies a user to pull the sheet in the state in which the sheet is held by the conveyance unit.

10. A control method of a printing apparatus that comprises a printing unit configured to perform printing on a sheet, a conveyance unit including a first rotating member and a second rotating member that nip and convey the sheet in a first direction, and a detection unit configured to detect a rotation of the first rotating member, the method comprising:
holding the sheet, after completion of printing by the printing unit, by temporarily stopping conveyance by the conveyance unit before completion of discharge of the sheet; and
causing, in a case in which the detection unit detects rotation of the first rotating member in a state in which the sheet is held by the conveyance unit, the conveyance unit to perform a discharging process of the sheet.

11. The method according to claim 10 , further comprising notifying a user to pull the sheet in a state in which the sheet is held by the conveyance unit.

12. The method according to claim 10 , wherein the discharging process is a process of restarting the conveyance of the sheet by the conveyance unit.

13. The method according to claim 10 , wherein the discharging process is a process of releasing hold of the sheet by the conveyance unit.

14. A non-transitory computer-readable storage medium storing a program for causing a computer to perform a control method of a printing apparatus that comprises a printing unit configured to perform printing on a sheet, a conveyance unit including a first rotating member and a second rotating member that nip and convey the sheet in a first direction, and a detection unit configured to detect a rotation of the first rotating member, the method comprising:
holding the sheet, after completion of printing by the printing unit, by temporarily stopping conveyance by the conveyance unit before completion of discharge of the sheet; and
causing, in a case in which the detection unit detects rotation of the first rotating member in a state in which the sheet is held by the conveyance unit, the conveyance unit to perform a discharging process of the sheet.

Assignees

• Canon Kk

Inventors

• Kuronuma Daigo
• Yamaguchi Toshiaki
• Suto Takuya
• Sugiyama Toshiro
• Tokuda Kouhei
• Shimamura Kenji
• Harigae Ryo
• Murata Ryosuke

Classifications

• B41J11/42 Primary

  Controlling {printing material conveyance for accurate alignment of the printing material with the printhead; Print registering} · CPC title

• B41J13/0009 Primary

  control of the transport of the copy material · 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

• G06K15/16

  Means for paper feeding or form feeding · CPC title