Conveyor device and image forming apparatus

• US 7,248,824 B2
• Filed: 08/25/2004
• Issued: 07/24/2007
• Est. Priority Date: 08/25/2003
• Status: Expired due to Fees

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Takami, Nobuo
• Primary Examiner(s): Chen; Sophia S.
• Application Number:
  US10/924,873
• Publication Number:
  US 20050117936A1
• Time in Patent Office: 1,063 Days
• Field of Search: 399/258, 399/260, 399/119, 399/120, 399/110, 399/262, 222/DIG.1, 222/207, 222/335
• US Class Current: 399/258
• CPC Class Codes: G03G 15/0849 Detection or control means for the developer concentration
• CPC Class Codes: G03G 15/0853 the concentration being measured by magnetic means
• CPC Class Codes: G03G 15/0877 Arrangements for metering and dispensing developer from a developer cartridge into the development unit
• CPC Class Codes: G03G 15/0879 for dispensing developer from a developer cartridge not directly attached to the development unit
• CPC Class Codes: G03G 15/0886 by mechanical means, e.g. shutter, plug
• CPC Class Codes: G03G 2215/0119 Linear arrangement adjacent plural transfer points
• CPC Class Codes: G03G 2215/0682 Bag-type non-rigid container
• CPC Class Codes: Y10S 222/01 Xerography

Abstract

A toner-conveying device includes a movable plate. The movable plate is movable between a holding position such as to couple a cap of a toner container to a nozzle when the toner container is supported by a container holder, and a retreating position such as not to hinder loading or unloading of the toner container in the container holder. The movable plate is placed in the holding position by a cam when the nozzle is coupled to the cap, and is released and moved to the retreating position while the toner container is being loaded or unloaded. In this structure, the cap can be properly positioned in the conveyor device while ensuring the rigidity of a bag of the container within a practically preferable range, without reducing the convenience for the operator.

Claims

1. A conveyor device comprising:

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a cap holder movable between a holding position to couple the cap to the conveying-path forming member when the container is supported by the container support and a retreating position to not hinder loading or unloading of the container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position,

wherein the container support is further configured to be positioned in a loading position at which the container is loaded into and unloaded from the container support and a stored position at which the container is stored in the conveyor device, and

said conveying-path forming member is configured to be simultaneously uncoupled from the cap when the container support is positioned in the loading position.

2. The conveyor device according to claim 1, wherein the conveying-path forming member is inserted in the cap substantially in a moving direction of the cap holder to form the conveying path.

3. The conveyor device according to claim 1, further comprising:

a container-support driving mechanism configured to move the container support between the loading position and the stored position, wherein the cap holder is placed in the holding position to the stored by the positioning unit in response to a motion of the container-support driving mechanism for moving the container support from the loading position to the stored position, and the cap holder is released from the positioning unit in response to a motion of the container-support driving mechanism for moving the container support from the stored position to the loading position.

4. A conveyor device comprising:

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a cap holder movable between a holding position to couple the cap to the conveying-path forming member when the container is supported by the container support and a retreating position to not hinder loading or unloading of the container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position,

wherein when the container is supported by the container support, a portion of the bag having a relatively low flexural rigidity near the cap faces in a direction that substantially coincides with a moving direction of the cap holder.

5. A conveyor device comprising:

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a cap holder movable between a holding position to couple the cap to the conveying-path forming member when the container is supported by the container support and a retreating position to not hinder loading or unloading of the container into or from the container support;

a positioning unit configured to place the cap holder in the holding position; and

a conveying-path forming member driving mechanism configured to move the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member being coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position,

wherein the cap holder is placed in the holding position by the positioning unit in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position, and the cap holder is released from the positioning unit in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.

6. The conveyor device according to claim 5, further comprising:

a container-support driving mechanism configured to move the container support between a loading position at which the container is loaded into or unloaded from the container support and a stored position at which the container is stored in the conveyor device,

wherein the conveying-path forming member driving mechanism moves the conveying-path forming member from the uncoupled position to the coupled position in response to a motion of the container-support driving mechanism for moving the container support from the loading position to the stored position, and moves the conveying-path forming member from the coupled position to the uncoupled position in response to a motion of the container-support driving mechanism for moving the container support from the stored position to the loading position.

7. The conveyor device according to claim 5, wherein the movement of the conveying-path forming member from the uncoupled position to the coupled position is completed after the cap holder is placed in the holding position by the positioning unit.

8. A conveyor device comprising:

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a cap holder movable between a holding position to couple the cap to the conveying-path forming member when the container is supported by the container support and a retreating position to not hinder loading or unloading of the container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position,

wherein, when the conveying-path forming member is inserted in a through hole of the cap communicating with the opening to change places with a shutter mounted in the cap that plugs the through hole, the conveying path communicates with the opening.

9. The conveyor device according to claim 8, wherein a direction of insertion of the conveying-path forming member is substantially orthogonal to a loading and unloading direction of the container into and from the container support.

10. The conveyor device according to claim 8, wherein the cap holder is released from the positioning unit after the shutter returns in the through hole to change places with the cap.

11. A conveyor device comprising:

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a cap holder movable between a holding position to couple the cap to the conveying-path forming member when the container is supported by the container support and a retreating position to not hinder loading or unloading of the container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position;

a conveying-path forming member driving mechanism that moves the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member being coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position; and

a cap moving mechanism that is configured to move the cap in a coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position and that moves the cap in a direction opposite to the coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.

12. The conveyor device according to claim 11, wherein the conveying-path forming member driving mechanism is a link mechanism.

13. The conveyor device according to claim 12, wherein the conveyor device conveys toner stored in the container to a developing device provided in an image forming apparatus.

14. A conveyor device comprising:

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a conveying-path forming member driving mechanism configured to move the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member being coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position; and

a cap moving mechanism configured to move the cap in a coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position and configured to move the cap in a direction opposite to the coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.

15. The conveyor device according to claim 14, wherein the conveyor device conveys toner stored in the container to a developing device provided in an image forming apparatus.

16. An image forming apparatus comprising:

a developing device configured to develop a latent image formed on a latent-image bearing member with toner to form a toner image;

a container configured to store the toner; and

a conveyor device configured to convey the toner from the container to the developing device, the conveyor device comprising;

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a cap holder movable between a holding position to couple the cap to the conveying-path forming member when the container is supported by the container support and a retreating position to not hinder loading or unloading of the container into or from the container support;

and a positioning unit configured to place the cap holder in the holding position,

wherein the container support is further configured to be positioned in a loading position at which the container is loaded into and unloaded from the container support and a stored position at which the container is stored in the conveyor device, and

said conveying-path forming member is configured to be simultaneously uncoupled from the cap when the container support is positioned in a loading position.

17. An image forming apparatus comprising:

a developing device configured to develop a latent image formed on a latent-image bearing member with toner to form a toner image;

a container configured to store the toner; and

a conveyor device configured to convey the toner from the container to the developing device, the conveyor device comprising;

a container support configured to support a detachable container in which a substance stored in a flexible bag is discharged through a cap provided at an opening of the bag while an external pressure is applied to the bag or the inner pressure of the bag is reduced to deform the bag and to reduce the volume of the bag;

a conveying-path forming member configured to be coupled to the cap and defining a conveying path in which the substance discharged from the container is conveyed to a destination;

a conveying-path forming member driving mechanism that moves the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member configured to be coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position; and

a cap moving mechanism configured to move the cap in a coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position and configured to move the cap in a direction opposite to the coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.

18. A conveyor device comprising:

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the detachable container is conveyed to a destination;

a cap holder configured to move between a holding position to couple the cap to the conveying-path forming member when the detachable container is supported by the container support and a retreating position to not hinder loading or unloading of the detachable container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position,

wherein the container support is further configured to be positioned in a loading position at which the detachable container is loaded into and unloaded from the container support and a stored position at which the detachable container is stored in the conveyor device, and

said conveying-path forming member is configured to be simultaneously uncoupled from the cap when the container support is positioned in the loading position.

20. The conveyor device according to claim 18, wherein the conveying-path forming member is inserted in the cap substantially in a moving direction of the cap holder to form the conveying path.

24. The conveyor device according to claim 18, further comprising:

a container-support driving mechanism configured to move the container support between the loading position and the stored position, wherein the cap holder is placed in the holding position by the positioning unit in response to a motion of the container-support driving mechanism for moving the container support from the loading position to the stored position, and the cap holder is released from the positioning unit in response to a motion of the container-support driving mechanism for moving the container support from the stored position to the loading position.

19. A conveyor device comprising:

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the detachable container is conveyed to a destination;

a cap holder configured to move between a holding position to couple the cap to the conveying-path forming member when the detachable container is supported by the container support and a retreating position to not hinder loading or unloading of the detachable container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position,

wherein when the detachable container is supported by the container support, a portion of the detachable container having a relatively low flexural rigidity near the cap faces in a direction that substantially coincides with a moving direction of the cap holder.

21. A conveyor device comprising:

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the detachable container is conveyed to a destination;

a cap holder configured to move between a holding position to couple the cap to the conveying-path forming member when the detachable container is supported by the container support and a retreating position to not hinder loading or unloading of the detachable container into or from the container support;

a positioning unit configured to place the cap holder in the holding position; and

a conveying-path forming member driving mechanism configured to move the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member being coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position,

wherein the cap holder is placed in the holding position by the positioning unit in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position, and the cap holder is released from the positioning unit in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.

22. The conveyor device according to claim 21, further comprising:

a container-support driving mechanism configured to move the container support between a loading position at which the container is loaded into or unloaded from the container support and a stored position at which the container is stored in the conveyor device,

wherein the conveying-path forming member driving mechanism moves the conveying-path forming member from the uncoupled position to the coupled position in response to a motion of the container-support driving mechanism for moving the container support from the loading position to the stored position, and moves the conveying-path forming member from the coupled position to the uncoupled position in response to a motion of the container-support driving mechanism for moving the container support from the stored position to the loading position.

23. The conveyor device according to claim 21, wherein the movement of the conveying-path forming member from the uncoupled position to the coupled position is completed after the cap holder is placed in the holding position by the positioning unit.

25. A conveyor device comprising:

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the detachable container is conveyed to a destination;

a cap holder configured to move between a holding position to couple the cap to the conveying-path forming member when the detachable container is supported by the container support and a retreating position to not hinder loading or unloading of the detachable container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position,

wherein, when the conveying-path forming member is inserted in a through hole of the cap communicating with the opening to change places with a shutter mounted in the cap that plugs the through hole, the conveying path communicates with the opening.

26. The conveyor device according to claim 25, wherein a direction of insertion of the conveying-path forming member is substantially orthogonal to a loading and unloading direction of the container into and from the container support.

27. The conveyor device according to claim 25, wherein the cap holder is released from the positioning unit after the shutter returns in the through hole to change places with the cap.

28. A conveyor device comprising:

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the detachable container is conveyed to a destination;

a cap holder configured to move between a holding position to couple the cap to the conveying-path forming member when the detachable container is supported by the container support and a retreating position to not hinder loading or unloading of the detachable container into or from the container support;

a positioning unit configured to place the cap holder in the holding position;

a conveying-path forming member driving mechanism that moves the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member being coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position; and

a cap moving mechanism that is configured to move the cap in a coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position and that moves the cap in a direction opposite to the coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.

29. The conveyor device according to claim 28, wherein the conveying-path forming member driving mechanism is a link mechanism.

30. The conveyor device according to claim 29, wherein the conveyor device conveys toner stored in the container to a developing device provided in an image forming apparatus.

31. A conveyor device comprising:

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the container is conveyed to a destination;

a conveying-path forming member driving mechanism configured to move the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member being coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position; and

a cap moving mechanism configured to move the cap in a coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position and configured to move the cap in a direction opposite to the coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.

32. The conveyor device according to claim 31, wherein the conveyor device conveys toner stored in the container to a developing device provided in an image forming apparatus.

33. An image forming apparatus comprising:

a developing device configured to develop a latent image formed on a latent-image bearing member with toner to form a toner image;

a container configured to store the toner; and

a conveyor device configured to convey the toner from the container to the developing device, the conveyor device comprising;

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the detachable container is conveyed to a destination;

a cap holder configured to move between a holding position to couple the cap to the conveying-path forming member when the detachable container is supported by the container support and a retreating position to not hinder loading or unloading of the detachable container into or from the container support; and

a positioning unit configured to place the cap holder in the holding position,

wherein the container support is further configured to be positioned in a loading position at which the container is loaded into and unloaded from the container support and a stored position at which the container is stored in the conveyor device, and

said conveying-path forming member is configured to be simultaneously uncoupled from the cap when the container support is positioned in a loading position.

34. An image forming apparatus comprising:

a developing device configured to develop a latent image formed on a latent-image bearing member with toner to form a toner image;

a container configured to store the toner; and

a conveyor device configured to convey the toner from the container to the developing device, the conveyor device comprising;

a container support configured to support a detachable container, the detachable container configured to store a substance and to discharge the substance through a cap provided at an opening of the detachable container;

a conveying-path forming member configured to be coupled to the cap and to define a conveying path in which the substance discharged from the detachable container is conveyed to a destination;

a conveying-path forming member driving mechanism configured to move the conveying-path forming member between a coupled position and an uncoupled position, the conveying-path forming member configured to be coupled to the cap at the coupled position and not hindering loading or unloading of the container into or from the container support at the uncoupled position; and

a cap moving mechanism configured to move the cap in a coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the uncoupled position to the coupled position and configured to move the cap in a direction opposite to the coupling direction in response to a motion of the conveying-path forming member driving mechanism for moving the conveying-path forming member from the coupled position to the uncoupled position.