Agent containing unit having improved usability, agent refill unit, and image forming apparatus

• US 7,620,349 B2
• Filed: 03/15/2006
• Issued: 11/17/2009
• Est. Priority Date: 03/15/2005
• Status: Expired due to Fees

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Katsuyama, Goro
• Primary Examiner(s): Gray; David M
• Assistant Examiner(s): Roth; Laura K
• Application Number:
  US11/374,996
• Publication Number:
  US 20060210319A1
• Time in Patent Office: 1,343 Days
• Field of Search: 399/102, 399/103, 399/106, 399/258, 399/260, 399/13, 399/261
• US Class Current: 399/260
• CPC Class Codes: G03G 15/0875 cartridges having a box like shape
• 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 2215/068 having a box like shape
• CPC Class Codes: G03G 2215/0692 using a slidable sealing member, e.g. shutter

Abstract

An agent containing unit for use in an image forming apparatus includes a container, a discharge port unit, and a support plate. The container stores an agent and has an opening on one end portion of the container. The discharge port unit is attached to the opening of the container, and covers the opening of the container and has a first discharge port, through which the agent is discharged from the container. The support plate supports the container, fixed detachably on the support plate, and has a second discharge port, which is aligned with the first discharge port.

Claims

1. An agent containing unit for use in an image forming apparatus, comprising:

a container configured to store an agent and having an opening on a first end portion of the container;

a discharge port unit, attached to the opening of the container, configured to cover the opening of the container and having a first discharge port, through which the agent is discharged from the container; and

a support plate configured to support the container fixed detachably on the support plate, and having a second discharge port aligned with the first discharge port,

wherein the container having the discharge port unit further comprises a lock member provided at a second end portion of the container, and said support plate comprises a concave portion, provided at a first end portion of the support plate and having the second discharge port therein, and a lock receiver, provided at a second end portion of the support plate, and wherein the container is fixed on the support plate by engaging the discharge port unit with the concave portion of the support plate and by engaging the lock member with the lock receiver of the support plate.

2. The agent containing unit according to claim 1, wherein the discharge port unit comprises:

a connector having the first discharge port therein, fused to the opening of the container;

a sealing ring configured to encircle the first discharge port on the connector; and

a first shutter configured to slidably move on the connector to open and close the first discharge port.

3. The agent containing unit according to claim 1, wherein the agent containing unit is configured to be firstly fixed to the support plate by engaging the discharge port unit to the concave portion of the support plate and is configured to be secondly fixed to the support plate by engaging the lock member to the lock receiver of the support plate, and

wherein the container is pulled toward the end portion having the lock member when engaging the lock member to the lock receiver of the support plate to maintain the container at a tensioned state.

4. The agent containing unit according to claim 1, wherein the agent includes any one of a toner, a carrier, and a developing agent having toner and carrier.

5. The agent containing unit according to claim 1, wherein the container and the support plate include a substantially rectangular parallelepiped form.

6. The agent containing unit according to claim 1, wherein the container is made of a soft material, and the support plate is made of a rigid material.

7. The agent containing unit according to claim 6, wherein the container is made of a thermoplastic material, and the support plate is made of a thermosetting material.

8. The agent containing unit according to claim 6, wherein the container includes a deformable container configured to reduce a volume of the container when the container is in an empty condition.

9. The agent containing unit according to claim 6, wherein the container includes a transparent container.

10. The agent containing unit according to claim 6, wherein the container includes a paper-composite container made of paper layer and resinous layer laminated on the paper layer.

11. An agent refilling unit for use in an image forming apparatus, comprising:

an agent containing unit, the agent containing unit including

a container configured to store an agent and having an opening on a first end portion of the container;

a discharge port unit, attached to the opening of the container, configured to cover the opening of the container and having a first discharge port, through which the agent is discharged from the container; and

a support plate configured to support the container fixed detachably on the support plate, and having a second discharge port aligned to the first discharge port;

an oscillating unit configured to accept and support the agent containing unit and having a third discharge port aligned with the first and second discharge port, the oscillating unit including a pair of inner sidewalls that extend in a longitudinal direction of the oscillating unit; and

a shutter opening/closing mechanism configured to open and close the first discharge port,

wherein the oscillating unit further comprises a pair of guide walls, wherein each respective guide wall of the pair of guide walls is located on a respective inner sidewall of the pair of inner sidewalls so as to extend along a substantial portion of the respective inner sidewall in the longitudinal direction of the oscillating unit, and wherein the pair of guide walls are configured to guide the support plate of the agent containing unit into the oscillating unit, and

wherein a distance between the pair of inner sidewalls in a transverse direction of the oscillating unit is greater than a distance between the pair of guide walls in the transverse direction of the oscillating unit.

12. The agent refill unit according to claim 11, wherein the discharge port unit of the agent containing unit comprises:

a connector having the first discharge port therein, fused to the opening of the container;

a sealing ring configured to encircle the first discharge port on the connector; and

a first shutter configured to slidably move on the connector to open and close the first discharge port by the shutter opening/closing mechanism.

13. The agent refill unit according to claim 12, wherein the shutter opening/closing mechanism is configured to open the first shutter by synchronizing an opening movement of the first shutter with an insertion movement of the agent containing unit into the oscillating unit, and the shutter opening/closing mechanism is configured to close the first shutter by synchronizing a closing movement of the first shutter with a withdrawal movement of the agent containing unit from the oscillating unit.

14. The agent refill unit according to claim 11, wherein the oscillating unit is configured to oscillate in a longitudinal direction of the oscillating unit to facilitate discharging of the agent from the container.

15. The agent refill unit according to claim 11, wherein the pair of guide walls respectively include an inclined portion that is configured to guide the support plate to an inner bottom face of the oscillating unit.

16. An agent refilling unit for use in an image forming apparatus, comprising:

an agent containing unit, the agent containing unit including

a container configured to store an agent and having an opening on a first end portion of the container;

a discharge port unit, attached to the opening of the container, configured to cover the opening of the container and having a first discharge port, through which the agent is discharged from the container; and

a support plate configured to support the container fixed detachably on the support plate, and having a second discharge port aligned to the first discharge port;

an oscillating unit configured to accept and support the agent containing unit and having a third discharge port aligned with the first and second discharge port; and

a shutter opening/closing mechanism configured to open and close the first discharge port,

wherein the oscillating unit further comprises a guide wall, located on each inner sidewall of the oscillating unit, configured to guide the support plate of the agent containing unit into the oscillating unit,

wherein the container having the discharge port unit further comprises a lock member provided at a second end portion of the container, and the support plate comprises a concave portion, provided at a first end portion of the support plate and having the second discharge port therein, and a lock receiver, provided at a second end portion of the support plate, and wherein the container is fixed on the support plate by engaging the discharge port unit to the concave portion of the support plate and by engaging the lock member to the lock receiver of the support plate.

17. The agent refill unit according to claim 16, wherein the support plate further comprises:

a lock pawl configured to engage with a lock hole of the oscillating unit to lock the agent containing unit to the oscillating unit when the agent containing unit is set in the oscillating unit; and

a grip having a locking release mechanism configured to unlock the lock pawl from the lock hole, the grip being provided at the second end portion of the support plate, which is opposite to the first end portion of the support plate having the concave portion, and wherein the locking release mechanism unlocks the lock pawl from the lock hole to disengage the agent containing unit from the oscillating unit.

18. The agent refill unit according to claim 17, wherein the grip overhangs from the oscillating unit when the agent containing unit is set in the oscillating unit.

19. An agent refilling unit for use in an image forming apparatus, comprising:

an agent containing unit, the agent containing unit including

a container configured to store an agent and having an opening on a first end portion of the container;

a discharge port unit, attached to the opening of the container, configured to cover the opening of the container and having a first discharge port, through which the agent is discharged from the container; and

a support plate configured to support the container fixed detachably on the support plate, and having a second discharge port aligned to the first discharge port;

an oscillating unit configured to accept and support the agent containing unit and having a third discharge port aligned with the first and second discharge port; and

a shutter opening/closing mechanism configured to open and close the first discharge port,

wherein the oscillating unit further comprises a guide wall, located on each inner sidewall of the oscillating unit, configured to guide the support plate of the agent containing unit into the oscillating unit, and

wherein the discharge port unit of the agent containing unit further includes

a connector having the first discharge port therein, fused to the opening of the container;

a sealing ring configured to encircle the first discharge port on the connector; and

a first shutter configured to slidably move on the connector to open and close the first discharge port by the shutter opening/closing mechanism, and

wherein the shutter opening/closing mechanism includes

a concave receiver located on each lateral side of the first shutter; and

an engaging member, provided with the oscillating unit, configured to engage the concave receiver of the first shutter when the agent containing unit is inserted into the oscillating unit.

20. The agent refill unit according to claim 19, wherein the support plate further comprises a second shutter configured to shield the second discharge port, and wherein the second shutter is configured to be opened and closed by the shutter opening/closing mechanism.

21. The agent refill unit according to claim 20, wherein the second shutter is configured to shield the concaved receiver of the first shutter.

22. The agent refill unit according to claim 20, wherein the shutter opening/closing mechanism is configured to open and close the first and second shutter in a synchronized manner.

23. An agent refilling unit for use in an image forming apparatus, comprising:

an agent containing unit, the agent containing unit including

a container configured to store an agent and having an opening on a first end portion of the container;

a discharge port unit, attached to the opening of the container, configured to cover the opening of the container and having a first discharge port, through which the agent is discharged from the container; and

a support plate configured to support the container fixed detachably on the support plate, and having a second discharge port aligned to the first discharge port;

an oscillating unit configured to accept and support the agent containing unit and having a third discharge port aligned with the first and second discharge port, the oscillating unit including a pair of inner sidewalls that extend in a longitudinal direction of the oscillating unit; and

a shutter opening/closing mechanism configured to open and close the first discharge port,

wherein the support plate has a front end and a rear end, the front end has a width which is smaller than a width of the rear end of the support plate, and wherein the support plate is inserted into the oscillating unit from the front end of the support plate, and

wherein the oscillating unit further comprises a pair of guide walls, wherein each respective guide wall of the pair of guide walls is located on a respective inner sidewall of the pair of inner sidewalls so as to extend along a substantial portion of the respective inner sidewall in a longitudinal direction of the oscillating unit, and wherein the pair of guide walls are configured to guide the support plate of the agent containing unit into the oscillating unit.

24. The agent refilling unit for use in an image forming apparatus according to claim 23, wherein a distance between the inner sidewalls in a transverse direction of the oscillating unit is greater than a distance between the guide walls in the transverse direction of the oscillating unit.

25. An image forming apparatus, comprising:

an agent containing unit, the agent containing unit including

a container configured to store an agent and having an opening on one end portion of the container;

a discharge port unit, attached to the opening of the container, configured to cover the opening of the container and having a first discharge port, through which the agent is discharged from the container; and

a support plate configured to support the container fixed detachably on the support plate, and having a second discharge port aligned to the first discharge port; and

an agent refilling unit, comprising;

an oscillating unit configured to accept and support the agent containing unit and having a third discharge port aligned with the first and second discharge port, the oscillating unit including a pair of inner sidewalls that extend in a longitudinal direction of the oscillating unit; and

a shutter opening/closing mechanism configured to open and close the first discharge port,

wherein the oscillating unit further comprises a pair of guide walls, wherein each respective guide wall of the pair of guide walls is located on a respective inner sidewall of the pair of inner sidewalls so as to extend along a substantial portion of the respective inner sidewall in the longitudinal direction of the oscillating unit, and wherein the pair of guide walls are configured to guide the support plate of the agent containing unit into the oscillating unit, and

wherein a distance between the pair of inner sidewalls in a transverse direction of the oscillating unit is greater than a distance between the pair of guide walls in the transverse direction of the oscillating unit.

26. The image forming apparatus according to claim 25, wherein the discharge port unit of the agent containing unit comprises:

a connector having the first discharge port therein, fused to the opening of the container;

a sealing ring configured to encircle the first discharge port on the connector; and

a first shutter configured to slidably move on the connector to open and close the first discharge port by the shutter opening/closing mechanism.

27. An agent refilling unit for use in an image forming apparatus, comprising:

an agent containing unit, comprising;

means for storing an agent, having an opening;

means for covering the opening of the means for storing an agent, having a first discharge port, through which the agent is discharged from the means for storing; and

means for supporting the means for storing an agent, detachably fixed on the means for supporting, and having a second discharge port aligned with the first discharge port;

means for accepting the agent containing unit, and having a third discharge port aligned with the first and second discharge port;

means for oscillating the means for accepting the agent containing unit to facilitate discharging of the agent from the means for storing the agent, the means for oscillating the means for accepting the agent containing unit including a pair of inner sidewalls that extend in a longitudinal direction of the means for oscillating the means for accepting the agent containing unit; and

means for opening and closing the first discharge port,

wherein the means for oscillating the means for accepting the agent containing unit further comprises a pair of guide walls, wherein each respective guide wall of the pair of guide walls is located on a respective inner sidewall of the pair of inner sidewalls so as to extend along a substantial portion of the respective inner sidewall in the longitudinal direction of the means for oscillating the means for accepting the agent containing unit, and wherein the pair of guide walls are configured to guide the means for supporting the means for storing an agent into the means for oscillating the means for accepting the agent containing unit, and

wherein a distance between the pair of inner sidewalls in a transverse direction of the means for oscillating the means for accepting the agent containing unit is greater than a distance between the pair of guide walls in the transverse direction of the means for oscillating the means for accepting the agent containing unit.