Image formation device and agent supplying device including absorber conveying by negative pressure
First Claim
Patent Images
1. An image formation device comprising:
- a container configured to contain a developer;
an absorber configured to convey the developer to a predetermined location by negative pressure;
a conduit disposed between the container and the absorber; and
a unit positionable from a first position to a second position to decrease a diameter of the conduit.
1 Assignment
0 Petitions
Accused Products
Abstract
A toner container contains a powdery toner. A powder pump conveys the toner in the toner container to a substantially closed, certain location using negative pressure. A toner conveyance tube conveys the toner from the container to the powder pump. An air pump supplies air into the toner container. An on/off valve opens and closes the toner conveyance tube.
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Citations
31 Claims
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1. An image formation device comprising:
- a container configured to contain a developer;
an absorber configured to convey the developer to a predetermined location by negative pressure;
a conduit disposed between the container and the absorber; and
a unit positionable from a first position to a second position to decrease a diameter of the conduit.
- a container configured to contain a developer;
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2. An image formation device comprising:
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an agent container configured to contain powdery agents;
an absorber configured to convey the agents contained in the agent container to a substantially-closed, predetermined location by negative pressure;
an agent conveyance conduit forming an agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
an open/close unit configured to open and to close the agent conveyance conduit, wherein the open/close unit comprises an on/off valve located in the agent conveyance conduit.
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3. An image formation device comprising:
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an agent container configured to contain powdery agents;
an absorber configured to convey the agents contained in the agent container to a substantially-closed, predetermined location by negative pressure;
an agent conveyance conduit forming an agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
an open/close unit configured to open and to close the agent conveyance conduit, wherein the agent conveyance conduit comprises a flexible tube, and the open/close unit comprising a presser configured to be moved between a location to press-close the tube from an external position and a location to release the closed tube.
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4. An image formation device comprising:
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an agent container configured to contain powdery agents;
an absorber configured to convey the agents contained in the agent container to a substantially-closed, predetermined location by negative pressure;
an agent conveyance conduit forming an agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a positive pressure generator configured to generate positive pressure in the agent conveyance conduit when the air supplier supplies the air. - View Dependent Claims (5, 6, 7)
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8. An image formation device comprising:
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an agent container configured to contain toner;
an absorber configured to convey the toner contained in the agent container to a predetermined location by negative pressure;
a substantially-closed, agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a controller configured to control operation of the air supplier and the absorber, the controller configured to actuate the air supplier when it is determined that a toner supplement amount by the absorber reaches a predetermined amount of at least 0.5 g. - View Dependent Claims (9, 10)
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11. An image formation device comprising:
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an agent container configured to contain toner;
an absorber configured to convey the toner contained in the agent container to a predetermined location by negative pressure;
a substantially-closed, agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a controller configured to control operation of the air supplier and the absorber, the controller configured to actuate the air supplier when it is determined that a toner supplement amount by the absorber reaches a predetermined amount based on the toner contained in the agent container. - View Dependent Claims (12)
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13. An image formation device comprising:
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an agent container configured to contain toner;
an absorber configured to convey the toner contained in the agent container to a predetermined location by negative pressure;
a substantially-closed, agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a controller configured to control operation of the air supplier and the absorber, the controller configured to actuate the air supplier when it is determined that a toner supplement amount by the absorber reaches a predetermined amount, wherein the controller is configured to vary the predetermined amount based on an amount contained in the agent container. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An agent supplying device comprising:
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a container configured to contain a developer;
an absorber configured to convey the developer to a predetermined location by negative pressure;
a conduit disposed between the container and the absorber; and
a unit positionable from a first position to a second position to decrease a diameter of the conduit.
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20. An agent supplying device comprising:
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an agent container configured to contain powdery agents;
an absorber configured to convey the agents contained in the agent container to a substantially-closed, predetermined location by negative pressure;
an agent conveyance conduit forming an agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a positive pressure generator configured to generate positive pressure in the agent conveyance conduit when the air supplier supplies the air.
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21. An agent supplying device comprising:
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an agent container configured to contain powdery agents;
an absorber configured to convey the agents contained in the agent container to a predetermined location by negative pressure;
a substantially-closed, agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a controller configured to control operations of the air supplier and the absorber, the controller configured to actuate the air supplier when it is determined that an agent supplement amount by the absorber reaches a predetermined amount of at least 0.5 g. - View Dependent Claims (22, 23)
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24. An agent supplying device comprising:
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an agent container configured to contain powdery agents;
an absorber configured to convey the agents contained in the agent container to a predetermined location by negative pressure;
a substantially-closed, agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a controller configured to control operation of the air supplier and the absorber, the controller configured to actuate the air supplier when it is determined that an agent supplement amount by the absorber reaches a predetermined amount based on an amount contained in the agent container. - View Dependent Claims (25)
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26. An agent supplying device comprising:
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an agent container configured to contain powdery agents;
an absorber configured to convey the agents contained in the agent container to a predetermined location by negative pressure;
a substantially-closed, agent conveyance path between the agent container and the absorber;
an air supplier configured to supply air into the agent container; and
a controller configured to control operation of the air supplier and the absorber, the controller configured to actuate the air supplier when it is determined that an agent supplement amount by the absorber reaches a predetermined amount based on an amount contained in the agent container. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification