Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for dispensing toners. In one aspect, a toner dispensing system includes a toner container; a cap and valve assembly coupled to the toner container, the cap and value assembly including: a movable valv
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for dispensing toners. In one aspect, a toner dispensing system includes a toner container; a cap and valve assembly coupled to the toner container, the cap and value assembly including: a movable valve assembly, the movable valve assembly having a first position and a second position, a toner path, and an air inlet path, where in a first valve assembly position the toner path and the air inlet path are closed, and in a second valve assembly position the toner path and the air inlet path are open; an air assembly including a first air supply coupled to the air path of the cap and valve assembly and a second regulated air supply coupled to the toner container; and a control assembly for controlling the second air supply.
대표청구항▼
1. A toner dispensing system comprising: a toner container;a cap and valve assembly coupled to the toner container, the cap and value assembly including: a movable valve assembly, the movable valve assembly having a first position and a second position,a toner path, andan air inlet path,where in a f
1. A toner dispensing system comprising: a toner container;a cap and valve assembly coupled to the toner container, the cap and value assembly including: a movable valve assembly, the movable valve assembly having a first position and a second position,a toner path, andan air inlet path,where in a first valve assembly position the toner path and the air inlet path are closed such that an output of the toner path is blocked by the cap and valve assembly, and in a second valve assembly position the toner path and the air inlet path are open;an air assembly including a first air supply coupled to the movable valve assembly and a regulated second air supply coupled to the toner container, wherein in the second valve assembly position the second air supply is coupled to the toner container using the air inlet path; anda control assembly for controlling the second air supply, and wherein the control assembly further controls the first air supply such that the first air supply acts to selectively position the movable valve assembly in an open and a closed position. 2. The toner dispensing system of claim 1, further comprising: a scale for measuring dispensed toners from the cap and valve assembly; anda flow control system that regulates the second air supply to control the flow of toner through the toner path based on the scale measurement. 3. The toner dispensing system of claim 2, where controlling the flow of toner further includes adjusting the second air supply to the toner container, and where the air pressure of the toner container determines the flow rate of toner through the toner path. 4. The toner dispensing system of claim 1, the cap and valve assembly further comprising: an elongated outer tube and an elongated inner tube, the elongated inner tube being movable relative to the outer tube, the elongated outer tube including openings for the air inlet path and the toner path, the inner tube including the air inlet path and the toner path,where the movable valve assembly moves the inner tube relative to the outer tube such that the air inlet path and toner path are aligned with respective openings in the outer tube. 5. The toner dispensing system of claim 1, the cap and valve assembly further comprising an anti-drip cap where the anti-drip cap is movable relative to an outlet of the toner path such that in a first position the outlet is open allowing toner to pass through the outlet from the toner path and in a second position the outlet is closed sealing the toner path preventing substantially all toner from passing through the outlet. 6. The toner dispensing system of claim 1, where the air inlet path selectively allows air to be injected into the toner container. 7. The toner dispensing system of claim 1, where the first air supply and the second air supply have a common source. 8. The toner dispensing system of claim 1, where the first air supply and the second air supply have a separate source. 9. A method comprising: identifying an amount of toner to dispense;initializing a scale to measure the amount of dispensed toner;activating a first air supply, the first air supply configured to provide air to a toner container when a valve is moved to a dispensing position;activating a second air supply, the second air supply moving the valve to the dispensing position such that toner is dispensed at a specified flow rate;monitoring the scale to determine when a first threshold amount of toner has been dispensed;when the threshold amount of toner has been dispensed, reducing the flow rate of the toner to a reduced flow rate;monitoring the scale to determine when a second threshold amount of toner has been dispensed; anddeactivating the first air supply when the second threshold amount of toner has been dispensed, the deactivating of the first air supply stopping the flow of toner. 10. The method of claim 9, further comprising: deactivating the second air supply when the second threshold amount of toner has been dispensed, the deactivating of the second air supply moving the valve out of the dispensing position. 11. The method of claim 9, further comprising: receiving a user selection of a recipe, the recipe identifying toners and corresponding amounts to be dispensed; anddispensing a first toner in the recipe and then a second toner from the recipe. 12. The method of claim 9, where reducing the flow rate includes reducing a pressure in the toner container provided by the first air supply. 13. The method of claim 9, where moving the valve to the dispensing position opens a toner path and an air path, the air path allowing the air to be injected into the toner container and where moving to a closed position seals the toner path and seals the air path. 14. A method comprising: providing a scale to measure an amount of a dispensed toner;activating a first air supply, the first air supply configured to provide air to a toner container when a valve is moved to a dispensing position;activating a second air supply, the second air supply moving the valve to the dispensing position such that toner is dispensed;monitoring the scale to determine when a desired amount of toner has been dispensed; anddeactivating the first air supply when the desired amount of toner has been dispensed, the deactivating of the first air supply stopping the flow of toner. 15. The method of claim 14 comprising activating the second air supply to move the vale to the dispensing position prior to activating the first air supply to provide air to the toner container. 16. The method of claim 14 comprising deactivating the second air supply after deactivating the first air supply. 17. The method of claim 15 comprising deactivating the second air supply after deactivating the first air supply.
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