Printing apparatus

Patent metadata

Field	Value
Publication number	US-11745521-B2
Application number	US-202117458077-A
Country	US
Kind code	B2
Filing date	Aug 26, 2021
Priority date	Sep 1, 2020
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

A printing apparatus includes a plurality of set units to set rolled print media, a conveyance unit to convey the print media, a printing unit, a detection unit, and display units. The printing unit prints an image on the print media conveyed by the conveyance unit. The detection unit detects whether any one of the print media is fed to a predetermined printable position at which printing is performable by the printing unit. Each display unit is provided on a different one of the plurality of set units and configured to indicate whether a print medium set in a corresponding set unit is being fed. When the printing unit performs printing on the print medium, each display unit indicates whether the print medium set in the corresponding set unit is being fed in accordance with a result of detection performed by the detection unit.

First claim

What is claimed is:

1. A printing apparatus comprising:
a plurality of set units for setting print media, wherein the print media is a plurality of rolled print media;
a conveyance unit configured to convey the print media;
a printing unit configured to print an image on the print media conveyed by the conveyance unit;
a detection unit configured to detect whether any one of the plurality of rolled print media is fed to a predetermined printable position at which printing is performable by the printing unit;
a plurality of print media feed state lighting portions, each provided on a different one of the plurality of set units and configured to indicate whether a print medium set in a corresponding set unit is being fed;
a plurality of set state lighting portions, each provided on the different one of the plurality of set units and configured to indicate a state of the print medium set in the corresponding set unit; and
a set detection unit configured to detect the print medium set in the corresponding set unit,
wherein, when the printing unit performs printing on the print medium, each print media feed state lighting portion indicates whether the print medium set in the corresponding set unit is being fed in accordance with a result of detection performed by the detection unit, and
wherein a corresponding set state lighting portion of the plurality of set state lighting portions is turned off or turned on according to the result of detection performed by the set detection unit.

2. The printing apparatus according to claim 1 , wherein each print media feed state lighting portion indicates whether the print medium set in the corresponding set unit is being fed, even in a case where the printing unit is in a standby state to wait for printing on the print medium.

3. The printing apparatus according to claim 1 ,
wherein, in a case where the result of detection performed by the detection unit indicates that the print medium has been conveyed to the predetermined printable position, a corresponding print media feed state lighting portion of the plurality of print media feed state lighting portions is turned on with a first color, and
wherein, in a case where the result of detection performed by the detection unit indicates that the print medium has not been conveyed to the predetermined printable position, the corresponding print media feed state lighting portion of the plurality of print media feed state lighting portions is turned on with a second color different from the first color or is turned off.

4. The printing apparatus according to claim 3 , wherein at least one of the plurality of print media feed state lighting portions is turned on with blue light.

5. The printing apparatus according to claim 1 ,
wherein the conveyance unit is configured to nip and convey the print medium,
wherein the detection unit includes a nip detection unit configured to detect whether the print medium is being nipped by the conveyance unit, and includes a supply detection unit provided, for each set unit of the plurality of set units, on an upstream side of the nip detection unit in a conveyance direction,
wherein, in a case where a result of detection performed by the nip detection unit indicates that the print medium is being nipped by the conveyance unit and a result of detection performed by a first supply detection unit indicates that the print medium has been detected, a lighting state of the print media feed state lighting portion corresponding to a set unit that corresponds to the first supply detection unit is brought into a state indicating that the print medium has been conveyed to the predetermined printable position,
wherein, in a case where the result of detection performed by the nip detection unit indicates that the print medium is being nipped by the conveyance unit and the result of the detection by the first supply detection unit indicate that the print medium has not been detected, the lighting state of the print media feed state lighting portion corresponding to the set unit corresponding to the first supply detection unit is brought into a state indicating that the print medium has not been conveyed to the predetermined printable position, and
wherein, in a case where the result of detection performed by the nip detection unit indicates that the print medium is not being nipped by the conveyance unit, the lighting state of the print media feed state lighting portion is brought into the state indicating that the print medium has not been conveyed to the predetermined printable position.

6. The printing apparatus according to claim 5 , wherein the conveyance unit is located near a position at which the printing unit performs printing on the print medium.

7. The printing apparatus according to claim 1 ,
wherein, in a case where a result of detection performed by the set detection unit indicates that the print medium has been detected, the corresponding set state lighting portion of the plurality of set state lighting portions is turned off, and
wherein, in a case where the result of detection performed by the set detection unit indicates that the print medium has not been detected, the corresponding set state lighting portion of the plurality of set state lighting portions is turned on.

8. The printing apparatus according to claim 7 , wherein at least one of the plurality of set state lighting portions is turned on with red light.

9. The printing apparatus according to claim 1 , further comprising:
a remaining amount detection unit configured to detect a remaining amount of the print medium set in the corresponding set unit; and
a remaining amount lighting portion configured to indicate the remaining amount of the print medium set in the corresponding set unit,
wherein a lighting state of the remaining amount lighting portion is changed in accordance with a result of detection performed by the remaining amount detection unit.

10. The printing apparatus according to claim 9 , wherein a plurality of remaining amount lighting portions is provided on remaining amount lighting portion, and a number of remaining amount lighting portions in the plurality of remaining amount lighting portions to be turned on is changed in accordance with the remaining amount of the print medium indicated by the result of detection by the remaining amount detection unit.

11. The printing apparatus according to claim 10 ,
wherein, in a case where the remaining amount indicated by the result of detection performed by the remaining amount detection unit is a first amount, a first number of remaining amount lighting portions are turned on, and
wherein, in a case where the remaining amount indicated by the result of detection performed by the remaining amount detection unit is a second amount smaller than the first amount, a second number of remaining amount lighting portions are turned on, where the second number is less than the first number.

12. The printing apparatus according to claim 10 ,
wherein the remaining amount lighting portion includes a first lighting portion configured to light in a case where the remaining amount indicated by the result of detection performed by the remaining amount detection unit is less than or equal to a predetermined amount, and
wherein, in lighting, the first lighting portion lights with a color different from a color with which the other remaining amount lighting portions light.

13. The printing apparatus according to claim 12 , wherein, in lighting, the first lighting portion lights with red color and the other remaining amount lighting portions light with green color.

14. The printing apparatus according

Assignees

• Canon Kk

Inventors

• Tokuda Kouhei
• Tokita Toshinobu
• Nozawa Hideyuki
• Asai Yasuyuki
• Taira Ryutaro

Classifications

• B41J15/18

  Multiple web-feeding apparatus · CPC title

• B41J11/42 Primary

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

• B41J11/0045

  Guides for printing material (curl smoothing B41J11/0005; platens B41J11/02, B41J11/06; guiding webs B41J15/046) · CPC title

• B41J13/0018

  in the sheet input section of automatic paper handling systems · CPC title

• B41J13/103

  for the sheet feeding section · CPC title