IP Library Granted Patent US 11,919,321
Granted Patent B2
US 11,919,321 · App. 17/355,571 · Granted Mar 5, 2024

Printing apparatus, control method, and storage medium

Inventors: Takeshi Murase (Kanagawa, JP); Kazuhiko Sato (Tokyo, JP); Taku Yokozawa (Kanagawa, JP); Noboru Kunimine (Tokyo, JP); Hiroshi Taira (Tokyo, JP); Hiroshi Kawafuji (Kanagawa, JP); Sae Mogi (Kanagawa, JP); Akiko Aichi (Tokyo, JP)
Assignee: Canon Kabushiki Kaisha
B41J25/006B41J2/04563B41J29/393
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Quick Facts
Patent No.
US 11,919,321
App. No.
17/355,571
Granted
Mar 5, 2024
Kind
B2
Abstract

A printing apparatus includes a printing unit configured to print an image on a print medium, an acquiring unit configured to acquire temperature information of the printing unit, and a control unit configured to control the printing unit so as to start relative scanning in a case where a temperature that is indicated by the temperature information has reached a print permission temperature. The print permission temperature in a first print mode whose speed at a time of a constant speed in relative scanning is a first speed is a first temperature. The print permission temperature in a second print mode whose speed at the time of the constant speed is a second speed that is faster than the first speed is a second temperature that is lower than the first temperature.

Claims (53)

1. A printing apparatus comprising:

a printing unit configured to print an image on a print medium by application of a printing material during relative scanning of the print medium;

an acquiring unit configured to acquire temperature information of the printing unit; and

a control unit configured to control the printing unit so as to start relative scanning in a case where a temperature that is indicated by the acquired temperature information has reached a print permission temperature, wherein

the print permission temperature in a first print mode in which a speed at a time of a constant speed in relative scanning is a first speed is a first temperature, and

the print permission temperature in a second print mode in which the speed at the time of the constant speed is a second speed that is faster than the first speed is a second temperature that is lower than the first temperature.

2. The printing apparatus according to claim 1 , wherein

the first print mode and the second print mode are print modes for printing an image on the same type of print medium.

3. The printing apparatus according to claim 1 , further comprising a carriage on which the printing unit is mounted and configured to move, wherein

the relative scanning is executed by movement of the carriage.

4. The printing apparatus according to claim 1 , further comprising a conveyance unit configured to convey the print medium in a conveyance direction, wherein

the printing unit includes a full-line head in which a plurality of print elements are arranged in a direction that intersects the conveyance direction, and

the relative scanning is executed by conveyance of the print medium.

5. The printing apparatus according to claim 1 , further comprising a temperature control unit configured to control a temperature of the printing unit by heating the printing unit, wherein

in a case where the temperature information that is acquired by the acquiring unit indicates a temperature that is lower than the print permission temperature, the temperature control unit heats the printing unit until the print permission temperature is reached.

6. The printing apparatus according to claim 5 , wherein

the temperature control unit heats the printing unit by driving a heating element that is arranged in the printing unit.

7. The printing apparatus according to claim 6 , wherein

a plurality of heating elements are arranged in a first direction in the printing unit, and

the printing unit moves in a second direction that intersects the first direction in relative scanning.

8. The printing apparatus according to claim 6 , wherein

the heating element is a print element that discharges ink as the printing material.

9. The printing apparatus according to claim 5 , wherein

the temperature control unit causes the printing unit to increase in temperature toward the print permission temperature during print standby of the printing unit.

10. The printing apparatus according to claim 5 , wherein

the temperature control unit causes a temperature of the printing unit to increase up to a predetermined temperature, and

the predetermined temperature is a temperature that is the same or higher than the highest print permission temperature.

11. The printing apparatus according to claim 1 , further comprising:

a peripheral temperature acquisition unit configured to acquire a temperature around the printing apparatus; and

a setting unit configured to set the print permission temperature based on temperature information that is acquired by the peripheral temperature acquisition unit.

12. The printing apparatus according to claim 11 , wherein

in a case where the temperature information that is acquired by the peripheral temperature acquisition unit indicates a first temperature, the setting unit does not change the print permission temperature, and

in a case where a second temperature that is lower than the first temperature is indicated, the setting unit corrects the print permission temperature to a high temperature side.

13. The printing apparatus according to claim 11 , wherein

the print permission temperature is a higher temperature than the temperature around the printing apparatus.

14. The printing apparatus according to claim 1 , further comprising:

a peripheral humidity acquisition unit configured to acquire a humidity around the printing apparatus; and

a setting unit configured to set the print permission temperature based on humidity information that is acquired by the peripheral humidity acquisition unit.

15. The printing apparatus according to claim 14 , wherein

in a case where the humidity information acquired by the peripheral humidity acquisition unit indicates a first humidity, the setting unit does not change the print permission temperature, and

in a case where a second humidity that is lower than the first humidity is indicated, the setting unit corrects the print permission temperature to a high temperature side.

16. The printing apparatus according to claim 1 , wherein

the control unit changes a control parameter in the print operation of the printing unit based on the print permission temperature.

17. The printing apparatus according to claim 1 , wherein

the acquiring unit acquires, as the temperature information, a temperature detected by a detection unit that is arranged in the printing unit.

18. A control method of a printing apparatus which includes a printing unit configured to print an image on a print medium by application of a printing material during relative scanning of the print medium, and an acquiring unit configured to acquire temperature information of the printing unit, the method comprising:

controlling the printing unit so as to start relative scanning in a case where a temperature that is indicated by the acquired temperature information has reached a print permission temperature, wherein

the print permission temperature in a first print mode in which a speed at a time of a constant speed in relative scanning is a first speed is a first temperature, and

the print permission temperature in a second print mode in which the speed at the time of the constant speed is a second speed that is faster than the first speed is a second temperature that is lower than the first temperature.

19. A non-transitory computer-readable storage medium operable to store a program that causes a computer to execute a control method of a printing apparatus including a printing unit configured to apply a printing material onto a print medium, and an acquiring unit configured to acquire temperature information of the printing unit, the method comprising:

controlling the printing unit so as to start relative scanning in a case where a temperature that is indicated by the acquired temperature information has reached a print permission temperature, wherein

the print permission temperature in a first print mode in which a speed at a time of a constant speed in relative scanning is a first speed is a first temperature, and

the print permission temperature in a second print mode in which the speed at the time of the constant speed is a second speed that is faster than the first speed is a second temperature that is lower than the first temperature.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2021
From: MURASE, TAKESHI; SATO, KAZUHIKO; YOKOZAWA, TAKU; KUNIMINE, NOBORU; TAIRA, HIROSHI; KAWAFUJI, HIROSHI; MOGI, SAE; AICHI, AKIKO
To: CANON KABUSHIKI KAISHA
Reel/Frame 057141/0191 →
Priority Claims (1)
JP 2020-108999 · Jun 24, 2020 · national
Continuity (1)
Related Publication 20210402813A1 · Dec 30, 2021