IP Library Granted Patent US 11,126,133
Granted Patent B1
US 11,126,133 · App. 16/925,360 · Granted Sep 21, 2021

Powder collection device and image forming apparatus

Inventors: Atsuna Saiki (Kanagawa, JP); Go Miura (Kanagawa, JP)
Assignee: FUJIFILM Business Innovation Corp.
G03G21/105G03G21/12
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Quick Facts
Patent No.
US 11,126,133
App. No.
16/925,360
Granted
Sep 21, 2021
Kind
B1
Abstract

A powder collection device includes a transport path, plural collection containers, and an opening and closing body. The transport path is configured to receive powder discharged from an image forming unit and transport the powder to discharge ports. The collection containers are arranged on the same straight line along the transport path. The collection containers is configured to accommodate the powder transported by the transport path. The opening and closing body has plural openings. The opening and closing body is configured to slide in the transport path so as to cause the transport path and the collection containers to sequentially communicate with each other.

Claims (46)

1. A powder collection device comprising:

a transport conduit configured to receive powder discharged from an image forming unit and transport the powder to discharge ports disposed on the transport conduit;

a plurality of collection containers arranged on a same straight line along the transport conduit, the collection containers being configured to accommodate the powder transported by the transport conduit; and

an opening and closing body having a plurality of openings that is disposed within the transport conduit, the opening and closing body being configured to slide within the transport conduit and parallel to a longitudinal direction of the transport conduit so as to cause the transport conduit and the collection containers to sequentially communicate with each other by sequentially opening the discharge ports.

2. The powder collection device according to claim 1 , wherein

the openings include at least three openings, and

a distance between adjacent openings differs depending on locations of the adjacent openings.

3. An image forming apparatus comprising:

an image forming unit configured to form a toner image; and

the powder collection device according to claim 2 , the powder collection device being configured to collect the powder collected from the image forming unit.

4. The powder collection device according to claim 1 , wherein

opening areas of the discharge ports are larger than opening areas of the openings.

5. An image forming apparatus comprising:

an image forming unit configured to form a toner image; and

the powder collection device according to claim 4 , the powder collection device being configured to collect the powder collected from the image forming unit.

6. An image forming apparatus comprising:

an image forming unit configured to form a toner image; and

the powder collection device according to claim 1 , the powder collection device being configured to collect the powder collected from the image forming unit.

7. The powder collection device according to claim 1 , further comprising a spiral blade that is disposed within the transport conduit, the spiral blade being configured to rotate and transport the powder to the discharge ports.

8. The powder collection device according to claim 7 , wherein the spiral blade is formed on and surrounds a rod, and the rod has a flat exterior surface without the spiral blade thereon in regions corresponding to the discharge ports.

9. The powder collection device according to claim 7 , further comprising a first motor that drives the opening and closing body linearly, and a second motor that drives the spiral blade to rotate.

10. A powder collection device comprising:

a transport path configured to receive powder discharged from an image forming unit and transport the powder to discharge ports;

a plurality of collection containers arranged on the same straight line along the transport path, the collection containers being configured to accommodate the powder transported by the transport path; and

an opening and closing body having a plurality of openings, the opening and closing body being configured to slide in the transport path so as to cause the transport path and the collection containers to sequentially communicate with each other,

wherein the opening and closing body extends along the transport path, and

the opening and closing body forms a part of an inner surface of the transport path.

11. The powder collection device according to claim 10 , wherein

the transport path comprises a transport unit having a spiral blade,

the transport unit is configured to transport the powder by being rotationally driven,

a surface of the opening and closing body forms the part of the inner surface of the transport path, and

a gap between the surface of the opening and closing body and the transport unit is substantially constant.

12. The powder collection device according to claim 11 , wherein no spiral blade is formed in regions corresponding to the discharge ports.

13. An image forming apparatus comprising:

an image forming unit configured to form a toner image; and

the powder collection device according to claim 12 , the powder collection device being configured to collect the powder collected from the image forming unit.

14. An image forming apparatus comprising:

an image forming unit configured to form a toner image; and

the powder collection device according to claim 11 , the powder collection device being configured to collect the powder collected from the image forming unit.

15. An image forming apparatus comprising:

an image forming unit configured to form a toner image; and

the powder collection device according to claim 10 , the powder collection device being configured to collect the powder collected from the image forming unit.

16. A powder collection device comprising:

transport means for receiving powder discharged from an image forming unit and transporting the powder to discharge ports disposed on the transport means;

a plurality of containing means arranged on a same straight line along the transport means, the plurality of containing means for accommodating the powder transported by the transport means; and

opening and closing means having a plurality of openings and disposed within the transport means, the opening and closing means sliding within and parallel to a longitudinal direction of the transport means so as to cause the transport means and the containing means to sequentially communicate with each other by sequentially opening the discharge ports.

Assignments (2)
CHANGE OF NAME Recorded Apr 28, 2021
From: FUJI XEROX CO., LTD.
To: FUJIFILM BUSINESS INNOVATION CORP.
Reel/Frame 056078/0098 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2020
From: SAIKI, ATSUNA; MIURA, GO
To: FUJI XEROX CO., LTD.
Reel/Frame 053170/0607 →
Priority Claims (1)
JP JP2020-042556 · Mar 12, 2020 · national
Cited By (1)
US 12,282,284