# US 12,214,598 B2 · Fluid extraction via removable extraction reservoirs

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- Number: US 12,214,598 B2
- Document ID: US12214598B2
- Status: Granted
- Kind: B2
- Application number: 17/049,147
- Filed: 2018-07-13
- Published: 2021-08-12
- Granted: 2025-02-04
- Earliest claimed: 2018-07-13
- Assignees: Hewlett-Packard Development Company, L.P.
- Applicants: Hewlett-Packard Development Company, L.P.
- Inventors: Wesley R Schalk; Christopher John Arnold; Jesse Sutherland
- Web page: https://patentgrep.com/patent/US12214598B2

## CPC

- B33Y 50/02: for controlling or regulating additive manufacturing processes
- B41J 2/17566: {Ink level or ink residue control}
- B29C 64/307: Handling of material to be used in additive manufacturing
- B29C 64/386: Data acquisition or data processing for additive manufacturing
- B33Y 40/00: Auxiliary operations or equipment, e.g. for material handling
- B33Y 50/00: Data acquisition or data processing for additive manufacturing
- B41J 2/175: Ink supply systems {; Circuit parts therefor}
- B41J 2/17509: {Whilst mounted in the printer}
- B41J 2/17546: {electronically}
- B41J 2/1755: {mechanically}
- B41J 29/02: Framework
- B29C 64/329: using hoppers
- B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)

## Abstract

In one example in accordance with the present disclosure, a fluid extraction system is described. The fluid extraction system includes an interface to fluidically and electrically couple a removable extraction reservoir to a printing device. The removable extraction reservoir is to receive an amount of fluid from a reservoir in the printing device. The system also includes a controller to, based on data received from memory of an interfaced removable extraction reservoir, initiate an extraction operation wherein fluid from the reservoir is passed to the removable extraction reservoir.

## Claims

### Claim 1

A fluid extraction system in a printing device comprising:
an interface configured to fluidically and electrically couple an external removable fluid extraction reservoir to the printing device, wherein the external removable fluid extraction reservoir has a memory to store data;
an internal fluid reservoir;
a controller configured to receive the data from the memory and based on the data received from memory of the external removable fluid extraction reservoir, initiate a fluid extraction operation, wherein fluid from the internal fluid reservoir in the printing device is passed to the external removable fluid extraction reservoir; and
a fluid level sensor disposed in the internal fluid reservoir to define when to terminate the fluid extraction operation.

### Claim 2 (depends on 1)

The fluid extraction system of claim 1, further comprising the external removable fluid extraction reservoir.

### Claim 3 (depends on 1)

The fluid extraction system of claim 1, further comprising:
a valve configured to, during the fluid extraction operation, establish a fluid path between the internal fluid reservoir to the external removable fluid extraction reservoir; and
a first pump configured to, during the fluid extraction operation, move fluid from the internal fluid reservoir to the external removable fluid extraction reservoir.

### Claim 4 (depends on 3)

The fluid extraction system of claim 3, wherein:
the fluid extraction system is configured to:
pass a fluid from the external removable fluid extraction reservoir, with the fluid disposed therein, to the internal fluid reservoir in the printing device while the first pump downstream of the internal fluid reservoir is idle, the valve is closed, and a second pump upstream of the internal fluid reservoir of the printing device is active;
pass the fluid from the internal fluid reservoir in the printing device to a printhead in the printing device while the first pump downstream of the internal fluid reservoir is active, the valve is closed, and the second pump upstream of the internal fluid reservoir of the printing device is idle;
circulate the fluid through the internal fluid reservoir in the printing device while the first pump downstream of the internal fluid reservoir is active, the valve is open, and the second pump upstream of the internal fluid reservoir of the printing device is active;
pass the fluid from the internal fluid reservoir in the printing device to the external removable fluid extraction reservoir while the first pump downstream of the internal fluid reservoir is active, the valve is open, and the second pump upstream of the internal fluid reservoir of the printing device is idle; and
pass the fluid from the internal fluid reservoir in the printing device to the printhead and from the external removable fluid extraction reservoir to the internal fluid reservoir while the first pump downstream of the internal fluid reservoir is active, the valve is closed, and the second pump upstream of the internal fluid reservoir of the printing device is active.

### Claim 5 (depends on 1)

The fluid extraction system of claim 1, wherein the data is to indicate:
a number of permissible fluid extractions to the external removable fluid extraction reservoir;
a capacity of the external removable fluid extraction reservoir;
a fluid age of a fluid disposed in the external removable fluid extraction reservoir;
an amount of fluid disposed in the external removable fluid extraction reservoir;
a fluid type;
an external removable fluid extraction reservoir type; or
a combination thereof.

### Claim 6 (depends on 1)

The fluid extraction system of claim 1, wherein:
the memory of the external removable fluid extraction reservoir includes a counter;
the counter indicates a number of fluid extractions to the external removable fluid extraction reservoir; and
fluid extraction from the internal fluid reservoir to the external removable fluid extraction reservoir is permissible based on a value of the counter, wherein the value of the counter corresponds to the number of fluid extractions to the external removable fluid extraction reservoir.

### Claim 7 (depends on 1)

The fluid extraction system of claim 1, further comprising a different fluid level sensor disposed in the external removable fluid extraction reservoir.

### Claim 8 (depends on 7)

The fluid extraction system of claim 7, wherein:
the data received from the memory further includes a capacity of the external removable fluid extraction reservoir determined via the different fluid level sensor; and
the controller is configured to determine the capacity of the external removable fluid extraction reservoir based on the data received from the memory.

### Claim 9 (depends on 1)

The fluid extraction system of claim 1, wherein:
the controller is configured to determine whether the external removable fluid extraction reservoir is full by comparing a capacity of the external removable fluid extraction reservoir against flow data from the fluid extraction system; and
the capacity of the external removable fluid extraction reservoir is included in the data received from the memory.

### Claim 10

A fluid transport system comprising:
a one internal fluid reservoir configured to hold an amount of fluid; and
a fluid extraction system per internal fluid reservoir, each fluid extraction system comprising:
an interface configured to fluidically and electrically couple an external removable fluid extraction reservoir to a corresponding internal fluid reservoir;
a controller configured to allow multiple fluid transport operations within a printing device, the multiple fluid transport operations including a fluid extraction operation which is triggered based on data received from a memory device of the external removable fluid extraction reservoir;
a valve configured to, during the fluid extraction operation, establish a fluid path between the corresponding internal fluid reservoir and the corresponding external removable fluid extraction reservoir;
a one pump configured to, during the fluid extraction operation, move fluid from the corresponding internal fluid reservoir to the corresponding external removable fluid extraction reservoir; and
a fluid level sensor disposed in the corresponding internal fluid reservoir to define when to terminate the fluid extraction operation.

### Claim 11 (depends on 10)

The fluid transport system of claim 10, wherein the multiple fluid transport operations further comprise:
an internal fluid reservoir fill operation;
an internal fluid reservoir fluid recirculation operation;
a printhead fluid recirculation operation; or
a combination thereof.

### Claim 12 (depends on 10)

The fluid transport system of claim 10, wherein:
the fluid transport system comprises additional internal fluid reservoirs; and
internal fluid reservoirs corresponding to empty interfaces are configured to circulate fluid while an internal fluid reservoir corresponding to a populated interface is depleted.

### Claim 13 (depends on 10)

The fluid transport system of claim 10, further comprising a display configured to indicate a status of the fluid extraction operation.

### Claim 14 (depends on 10)

The fluid transport system of claim 10, wherein each interface further comprises a keying feature configured to gate insertion to just those external removable fluid extraction reservoirs with matching keying features.