Printing apparatus and storage apparatus

Patent metadata

Field	Value
Publication number	US-10906764-B2
Application number	US-201815965124-A
Country	US
Kind code	B2
Filing date	Apr 27, 2018
Priority date	May 12, 2017
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A printing apparatus is capable of preventing a sheet discharged from a discharge unit from entering a feeding unit while guiding the sheet properly to a storage unit located below the feeding unit. The printing apparatus includes a storage unit configured to store a sheet discharged from a discharge unit and a guide unit configured to guide the sheet discharged from the discharge unit to the storage unit. The guide unit has a turning unit which prevents the sheet discharged from the discharge unit from entering a feeding unit and which turns when the sheet comes into contact with the turning unit.

First claim

What is claimed is:

1. A printing apparatus comprising:
a feeding unit comprising a nip arm and configured to support a roll sheet at a nip position of the nip arm and feed a sheet from the roll sheet;
a printing unit configured to perform printing on the sheet fed from the feeding unit;
a discharge unit arranged above the feeding unit and configured to discharge the sheet on which printing has been performed by the printing unit;
a storage unit partially arranged below the feeding unit and configured to store the sheet discharged from the discharge unit; and
a guide unit comprising a turning unit configured to turn toward the feeding unit by contacting the sheet discharged from the discharge unit, the guide unit being configured to guide the sheet discharged from the discharge unit toward the storage unit,
wherein the position of a lower end of the guide unit in the gravity direction is at the same height as or lower than the nip position of the nip arm.

2. The printing apparatus according to claim 1 , wherein a plurality of guide units are arranged along a width direction of the sheet.

3. The printing apparatus according to claim 1 , wherein
the storage unit has a receiver to receive the sheet discharged from the discharge unit and includes a storage space to store the sheet between the receiver and the feeding unit.

4. The printing apparatus according to claim 1 , wherein
the position of the lower end of the guide unit in the horizontal direction is even with the position of the nip arm or forward of the position of the nip arm in the printing apparatus.

5. The printing apparatus according to claim 4 , wherein
when a contact position is defined as a position where the guide unit comes into contact with a surface of the roll sheet, a locus length by which the contact position moves along with a change in the diameter of the roll sheet from a maximum diameter to a minimum diameter is shorter than a locus length by which the nip position moves along with a change in the diameter of the roll sheet from the maximum diameter to the minimum diameter.

6. The printing apparatus according to claim 4 , wherein
the guide unit is arranged at a position different from the position of the nip arm in a width direction of the sheet.

7. The printing apparatus according to claim 1 , wherein
the guide unit is turnable up to a position at which the guide unit comes into contact with the roll sheet by being pushed by the sheet discharged from the discharge unit.

8. The printing apparatus according to claim 7 , wherein
a portion of the guide unit which comes into contact with the roll sheet has a roller member configured to rotate, following rotation of the roll sheet.

9. The printing apparatus according to claim 1 , wherein
a surface of the guide unit which faces the sheet is provided with one or more ribs aligned in a width direction of the sheet and extending along a discharging direction of the sheet discharged from the discharge unit.

10. The printing apparatus according to claim 1 , wherein
the guide unit has a guide portion extending upstream of a turning center of the turning unit in a discharging direction of the sheet, and
in a state in which the guide unit turns when the sheet discharged from the discharge unit pushes a side of the guide unit downstream of the turning center in the discharging direction of the sheet, the guide portion protrudes from a surface of the guide unit, which guides the sheet, in a direction in which the guide portion pushes out the sheet.

11. The printing apparatus according to claim 1 , wherein
the guide unit includes a first guide portion and a second guide portion located below the first guide portion,
the second guide portion is turnably connected to the first guide portion,
the first guide portion is turnably supported by a support member extending in a width direction of the sheet, and
the second guide portion is present at a position which allows the second guide portion to prevent the sheet from entering the feeding unit, and turns when the sheet discharged from the discharge unit pushes the second guide portion.

12. The printing apparatus according to claim 1 , wherein
the storage unit includes a flexible receiver in a sheet shape, and a rod supporting the receiver, and
a storage space for the sheet discharged from the discharge unit is formed between the receiver and the feeding unit.

13. The printing apparatus according to claim 1 , wherein
a plurality of the feeding units are arranged at different positions in the gravity direction, and
the storage unit is formed below the feeding unit located lowest among the plurality of feeding units.

14. A printing apparatus comprising:
a feeding unit comprising a nip arm and configured to support a roll sheet at a nip position of the nip arm and feed a sheet from the roll sheet;
a printing unit configured to perform printing on the sheet fed from the feeding unit;
a discharge unit arranged above the feeding unit and configured to discharge the sheet on which printing has been performed by the printing unit;
a storage unit partially arranged below the feeding unit and configured to store the sheet discharged from the discharge unit; and
a guide unit arranged at a position different from the nip arm in a width direction of the sheet and configured to store the sheet discharged from the discharge unit,
wherein the guide unit has a turning unit which prevents the sheet discharged from the discharge unit from entering the feeding unit and which turns when the sheet comes into contact with the turning unit, and
wherein the position of a lower end of the guide unit in the horizontal direction is even with the position of the nip arm or forward of the position of the nip arm in the printing apparatus.

15. The printing apparatus according to claim 14 , wherein
a plurality of guide units are arranged along a width direction of the sheet.

16. The printing apparatus according to claim 4 , wherein
the position of the lower end of the guide unit in the gravity direction is the same height as or lower than the position of the nip position.

17. A printing apparatus comprising:
a feeding unit configured to support a roll sheet and feed a sheet from the roll sheet;
a printing unit configured to perform printing on the sheet fed from the feeding unit;
a discharge unit arranged above the feeding unit and configured to discharge the sheet on which printing has been performed by the printing unit;
a storage unit partially arranged below the feeding unit and configured to store the sheet discharged from the discharge unit; and
a guide unit to guide the sheet discharged from the discharge unit toward the storage unit,
wherein the guide unit has a first guide portion and a second guide portion located below the first guide portion,
the second guide portion is turnably connected to the first guide portion,
the first guide portion is detachably supported by a support member extending in a width direction of the sheet, and
the second guide portion is present at a position which allows the second guide portion to prevent the sheet from entering the feeding unit, and turns when the sheet discharged from the discharge unit pushes the second guide portion.

18. The printing apparatus according to claim 17 , wherein
a plurality of guide units are arranged along the width direction of the sheet.

19. The printing apparatus according to claim 17 , wherein the first guide portion is detached from the support member when a load greater th

Assignees

• Canon Kk

Inventors

• Yoneyama Hiromasa
• Asai Yasuyuki
• Kikuchi Tetsuo
• Wada Itaru
• Anayama Daiki

Classifications

• B65H23/28 Primary

  by longitudinally-extending strips, tubes, plates, or wires (flexible tapes or bands B65H23/30) · CPC title

• B65H35/08

  from or with revolving, e.g. cylinder, cutters or perforators · CPC title

• B65H16/028

  on its outer circumference (B65H16/08 takes precedence) · CPC title

• B65H2301/448

  Diverting · CPC title

• B65H2801/06

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