Liquid ejection apparatus and control method of liquid ejection apparatus

Patent metadata

Field	Value
Publication number	US-2025373744-A1
Application number	US-202519224753-A
Country	US
Kind code	A1
Filing date	May 31, 2025
Priority date	May 31, 2024
Publication date	Dec 4, 2025
Grant date	—

Abstract

Provided are a liquid ejection apparatus and a control method of the liquid ejection apparatus that can suppress a power consumption without impairing operational feeling. To this end, a tilt correction operation performed by abutting a printing medium onto a conveyance roller in a printing unit and an operation by a reading unit are exclusively controlled.

First claim

What is claimed is:

1 . A liquid ejection apparatus, comprising:
a printing unit configured to print an image on a printing medium; a reading unit configured to read an image of a document; and a control unit configured to control the printing unit and the reading unit, characterized in that in a period in which either one of the printing unit and the reading unit performs a predetermined operation with a great power consumption, the control unit restricts an operation by the other.

2 . The liquid ejection apparatus according to claim 1 , characterized in that
the printing unit includes an ejection head configured to eject liquid and a conveyance unit configured to convey a printing medium on which an image is printed by the ejection head, and the predetermined operation is a tilt correction operation in which printing on a first side of the printing medium is performed, the printing medium is inverted between front and back by the conveyance unit, and thereafter tilt of the printing medium is corrected before printing on a second side that is a back side of the first side.

3 . The liquid ejection apparatus according to claim 2 , characterized in that
in a period in which the printing unit performs the tilt correction operation, the control unit restricts an operation by the reading unit.

4 . The liquid ejection apparatus according to claim 3 , characterized in that
the restriction of the operation by the reading unit includes stopping the operation and the operation with a suppressed power consumption.

5 . The liquid ejection apparatus according to claim 2 , characterized in that
the conveyance unit includes a conveyance roller configured to convey the printing medium and a relay roller configured to convey the printing medium after inversion between front and back, which are driven by the same motor, and in the tilt correction operation, a leading end of the printing medium is abutted onto the conveyance roller with the relay roller conveying the printing medium.

6 . The liquid ejection apparatus according to claim 5 , characterized in that
the motor is an AC motor or a DC motor.

7 . The liquid ejection apparatus according to claim 1 , characterized in that
the reading unit is an ADF scanner that can sequentially read a plurality of documents.

8 . The liquid ejection apparatus according to claim 1 , characterized in that
the reading unit is a flatbed scanner configured to read a document while fixing the document.

9 . A control method of the liquid ejection apparatus including a printing unit configured to print an image on a printing medium and a reading unit configured to read an image on a document, characterized in that
in controlling of the printing unit and the reading unit, in a period in which either one of the printing unit and the reading unit performs a predetermined operation with a great power consumption, an operation by the other is restricted.

Assignees

• Canon Kk

Inventors

• Suzuki Yumi
• Kiuchi Takahiro
• Fukuda Toshiki
• Kawanishi Masahiro
• Shinohara Shimpei
• Iino Yusuke
• Takenaga Ken

Classifications

• H04N1/034

  using ink, e.g. ink-jet heads {(H04N1/0323 takes precedence)} · CPC title

• B65H2801/06

  Office-type machines, e.g. photocopiers · CPC title

• B65H85/00

  Recirculating articles, i.e. feeding each article to, and delivering it from, the same machine work-station more than once · CPC title

• B65H29/125

  between two sets of rollers · CPC title

• H04N1/00904 Primary

  Arrangements for supplying power to different circuits or for supplying power at different levels (H04N1/00896 takes precedence) · CPC title