Nozzle insertion member, powder container, and image forming apparatus

• US 9,465,317 B2
• Filed: 02/21/2014
• Issued: 10/11/2016
• 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:
  US14/186,417
• Publication Number:
  US 20140241757A1
• Time in Patent Office: 963 Days
• Field of Search: 399/258, 399/262
• US Class Current: 1/1
• 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 nozzle receiver for use with a powder container, the nozzle receiver comprising:

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

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

a biasing member at the support that biases the shutter toward the closed position;

an elongated guide attached to the shutter and extending parallel to an axial 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, a relative rotation between the elongated guide and the support being limited so that as the support rotates, the elongated guide rotates which causes rotation of the shutter.

2. The nozzle receiver according to claim 1, wherein at a position where the elongated guide passes through the end of the support, the elongated guide includes at least one of a rib, a flat surface, and a curved surface.

3. The nozzle receiver according to claim 1, wherein the biasing member is disposed within the support.

4. A powder container comprising:

a powder storage to store therein powder and to convey the powder by a rotary conveyor arranged inside the powder storage from one end in a rotation axis direction of the rotary conveyor to another end where an opening is arranged; and

the nozzle receiver according to claim 1, wherein

the nozzle receiver is attached to the powder storage.

5. An image forming apparatus comprising:

the powder container according to claim 4; and

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

6. The powder container according to claim 4, wherein the powder storage comprises toner.

7. The powder container according to claim 4, wherein the powder storage comprises developer including toner and carrier particles.

8. The powder container according to claim 4, wherein:

the powder storage comprises a gear whose rotation causes the rotary conveyor to move powder within the powder storage towards the opening thereof and causes the support of the nozzle receiver to rotate in a manner which corresponds to the rotation of the gear.

9. The nozzle receiver according to claim 1, wherein:

the support includes the opening of the nozzle receiver, and

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

10. The nozzle receiver according to claim 9, wherein:

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

11. A nozzle receiver for use with a powder container, the nozzle receiver comprising:

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

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

an elongated guide attached to the shutter and extending parallel to an axial 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;

a biasing member at the support that biases the shutter toward the closed position; and

a protrusion at a center of the shutter and that protrudes from a front end surface of the shutter which faces outwardly away from the nozzle receiver and is to contact a substantially continuous flat surface extending across a face of the nozzle of the image forming apparatus, wherein

the shutter rotates with rotation of the support.

12. The nozzle receiver according to claim 11, wherein the protrusion is located substantially on a rotation axis of the shutter.

13. The nozzle receiver according to claim 11, further comprising:

a seal attached to the front end surface of the shutter.

14. The nozzle receiver according to claim 13, wherein

the shutter includes a plurality of concaves at the front end surface, and

the seal covers the concaves.

15. The nozzle receiver according to claim 13, wherein the seal is to be compressed in a thickness direction by contacting the flat surface of 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.

16. The nozzle receiver according to claim 13, wherein the seal includes a surface, which faces outwardly away from the front end surface of the shutter, has a lower coefficient of friction than other portions of the seal.

17. The nozzle receiver according to claim 11, wherein the biasing member is disposed within the support.

18. A powder container comprising:

a powder storage to store therein powder and to convey the powder by a rotary conveyor arranged inside the powder storage from one end in a rotation axis direction of the rotary conveyor to another end where an opening is arranged; and

the nozzle receiver according to claim 11,

wherein the nozzle receiver is attached to the powder storage.

19. An image forming apparatus comprising:

the powder container according to claim 18; and

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

20. The powder container according to claim 18, wherein the powder storage comprises toner.

21. The powder container according to claim 18, wherein the powder storage comprises developer including toner and carrier particles.

22. The powder container according to claim 18, wherein:

the powder storage comprises a gear whose rotation causes the rotary conveyor to move powder within the powder storage towards the opening thereof and causes the support of the nozzle receiver to rotate in a manner which corresponds to the rotation of the gear.

23. The nozzle receiver according to claim 11, wherein:

the shutter is rotated by a drive transmitting mechanism when there is rotation of the shutter.

24. The nozzle receiver according to claim 23, wherein

the support includes an opening at an end opposite to the opening of the nozzle receiver, and

the drive transmitting mechanism includes:

a drive transmitted portion on an elongated member that penetrates the opening of the support; and

a drive transmitting portion on an inner surface of the opening of the support and that contacts the drive transmitted portion.

25. The nozzle receiver according to claim 11, wherein:

the support includes the opening of the nozzle receiver, and

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

26. The nozzle receiver according to claim 25, wherein:

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

27. A nozzle receiver for use with a powder container, the nozzle receiver comprising:

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

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

an elongated guide attached to the shutter and extending parallel to an axial 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;

a biasing member at the support that biases the shutter toward the closed position; and

a protrusion at approximately a center of the shutter and that protrudes from a front end surface of the shutter which faces outwardly away from the nozzle receiver and is to contact a substantially continuous flat face of the nozzle of the image forming apparatus, wherein

the shutter rotates with rotation of the support.