Nozzle insertion member, powder container, and image forming apparatus

• US 10,048,621 B2
• Filed: 11/24/2017
• Issued: 08/14/2018
• Est. Priority Date: 02/25/2013
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Kikuchi, Kenji, Tamaki, Shinji, Katoh, Shunji, Yamabe, Junji
• Primary Examiner(s): Villaluna, Erika J
• Application Number:
  US15/822,044
• Publication Number:
  US 20180074438A1
• Time in Patent Office: 263 Days
• CPC Class Codes: G03G 15/0865 Arrangements for supplying new developer
• CPC Class Codes: G03G 15/087 Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
• CPC Class Codes: G03G 15/0872 the developer cartridges being generally horizontally mounted parallel to its longitudinal rotational axis
• CPC Class Codes: G03G 15/0877 Arrangements for metering and dispensing developer from a developer cartridge into the development unit
• CPC Class Codes: G03G 15/0886 by mechanical means, e.g. shutter, plug
• CPC Class Codes: G03G 2215/0132 vertical medium transport path at the secondary transfer
• CPC Class Codes: G03G 2215/0678 Bottle shaped container having a bottle neck for toner discharge

Abstract

A nozzle insertion member arranged in a powder container includes a nozzle insertion opening; an opening/closing member opening/closing the nozzle insertion opening; a supporting member supporting the opening/closing member; and a biasing member provided to the supporting member to bias the opening/closing member toward a closing position. When the powder is supplied to the conveying nozzle along with rotation of a rotary conveyor arranged inside the powder container, the supporting member rotates with the rotation of the conveyor. The opening/closing member is rotated by a drive transmitting mechanism with rotation of the supporting member. The mechanism includes an elongated member arranged on the opening/closing member and penetrating through an opening formed on the supporting member; and a drive transmitted portion formed on the elongated member; and a drive transmitting portion formed on an inner surface of the opening and configured to come into contact with the drive transmitted portion.

Claims

1. A powder container attachable to an image forming apparatus in a longitudinal direction, the powder container comprising:

a powder storage to store therein powder for image formation;

a nozzle receiver, attached to the powder storage, to receive a conveying nozzle of the image forming apparatus;

a conveyor to convey the powder from one end of the powder storage in the longitudinal direction to an opposite end of the powder storage at which the nozzle receiver is disposed; and

a gear to rotate the conveyor with an external driving force,

wherein the nozzle receiver includes;

a shutter to open an opening of the nozzle receiver to an open position when the shutter is pressed by the nozzle of the image forming apparatus, and to close the opening to a closed position when not being pressed by the nozzle of the image forming apparatus, the shutter having a front end surface, and

a seal, at the front end surface of the shutter, including a surface that is lower friction than other portions of the seal and that faces outwardly away from the front end surface of the shutter.

2. The powder container according to claim 1, wherein:

the seal is compressed in the longitudinal direction of the powder container by contacting the nozzle of the image forming apparatus when the shutter is located at the open position to open the opening due to insertion of the nozzle.

3. The powder container according to claim 1, wherein the nozzle receiver further includes:

a support to support the shutter between the open position and the closed position.

4. The powder container according to claim 3, wherein the nozzle receiver further includes:

an elongated guide attached to the shutter and extending parallel to a length of the support, the elongated guide slidably extending through an end of the support which is opposite to the opening of the nozzle receiver.

5. The powder container according to claim 3, wherein:

a rotation of the gear causes the support of the nozzle receiver to rotate.

6. The powder container according to claim 3, wherein:

the support includes the opening of the nozzle receiver, and

the opening of the nozzle receiver is integral with an end of the support which is opposite to the opening of the nozzle receiver.

7. The powder container according to claim 3, wherein:

the support guides the shutter between the open position and the closed position.

8. The powder container according to claim 1, wherein:

the gear and the powder storage are integral.

9. The powder container according to claim 1, wherein the powder storage comprises toner.

10. The powder container according to claim 1, wherein the powder storage comprises developer including toner and carrier particles.

11. An image forming apparatus comprising:

the powder container according to claim 1; and

an image forming unit to form an image on an image bearer using the powder conveyed from the powder container.

12. The powder container according to claim 1, wherein:

the surface of the seal comprises is a high molecular polyethylene sheet.

13. The powder container according to claim 1, wherein:

the surface of the seal comprises is a polyethylene terephthalate material.