Abstract: A display system is provided, the system including an illumination source configured to produce light and direct light along an optical path, a plurality of color filters disposed in the optical path configured to generate a plurality of colored light beams, and a spatial light modulator disposed in the optical path adapted to receive and adjust the colored light beams to produce an image.

Abstract: A fluid ejection cartridge for dispensing a bioactive fluid including a first reservoir containing the bioactive fluid and a first fluid ejector fluidically coupled to the first reservoir. The first fluid ejector ejects at least a drop of the bioactive fluid onto the ingestible sheet.

Abstract: A mixing apparatus that includes a drop on demand fluid dispenser for adding an additive fluid to a receiver liquid to produce a composite liquid that includes the receiver liquid and the additive fluid.

Abstract: A mixing apparatus having a channel for guiding an input gas stream, a drop on demand fluid drop emitting apparatus for emitting drops of a fluid into the input gas stream to produce a gas mixture that contains the fluids drops, and a pressure control system for controlling a pressure of the fluid in the drop on demand fluid drop emitting apparatus.

Abstract: A method and apparatus for placing fluid droplets onto a surface in which at least one of a group of nozzles is substantially aligned with a first of parallel line segments on a surface moving in a first direction relative to said nozzles; at least one droplet is ejected from said first nozzle onto a target on said first segment; said group of nozzles is moved in a second direction having a component orthogonal to said first direction to respectively align first and second nozzles in said group with a second segment and with said first segment; and fluid droplets are ejected from said nozzles onto targets on said segments, the center to center spacing of said targets along said segments equaling one or a multiple of the center to center spacing of said nozzles orthogonal to said segments.

Abstract: A method, system and apparatus for improving the image quality of a print job. In the method, a print job having a print length and a print width is initiated. The print job is paused in response to at least one of the print length and the print width exceeding a modifiable servicing interval. A service strip is printed and evaluated to determine whether the image quality of the print job is above a predetermined quality threshold. The print job is resumed in response to the print job being above the predetermined quality threshold. In the system, a printer is controlled by processor to initiate the print job, pause the print job, and print the service strip as required. The service strip is sensed by a sensor system and data associated with the sensing of the service strip is relayed to the processor for evaluation. In response to the print job being above the predetermined quality threshold, the printer is controlled by the processor to resume the print job.

Abstract: A fluid ejection cartridge for dispensing a bioactive fluid including a first reservoir containing the bioactive fluid and a first fluid ejector fluidically coupled to the first reservoir. The first fluid ejector ejects at least a drop of the bioactive fluid onto the ingestible sheet.

Abstract: A method of manufacturing a bioactive fluid dose on an ingestible sheet, comprising the steps of advancing the ingestible sheet to a dispense position, and activating a fluid ejector to dispense essentially a drop of a bioactive fluid onto the ingestible sheet.

Abstract: A method, system and apparatus for improving the image quality of a print job. In the method, a print job having a print length and a print width is initiated. The print job is paused in response to at least one of the print length and the print width exceeding a modifiable servicing interval. A service strip is printed and evaluated to determine whether the image quality of the print job is above a predetermined quality threshold. The print job is resumed in response to the print job being above the predetermined quality threshold. In the system, a printer is controlled by processor to initiate the print job, pause the print job, and print the service strip as required. The service strip is sensed by a sensor system and data associated with the sensing of the service strip is relayed to the processor for evaluation. In response to the print job being above the predetermined quality threshold, the printer is controlled by the processor to resume the print job.

Abstract: A projector that has a narrow-spectrum light source to complement a broad-spectrum light source is disclosed. The broad-spectrum light source has a broad spectrum. The narrow-spectrum light source has a narrow spectrum complementing the broad spectrum of the broad-spectrum light source.

Abstract: The diameter of nozzles in a nozzle plate used in ink-jet printer pens, or cartridges, for the black ink is set at a first value, e.g., 45 .mu.m, which is larger than that used for the color inks, e.g., 40 .mu.m. It has been found that merely changing the nozzle diameter is sufficient to change the ink droplet size. By designing the drop mass properly (i.e., lower than normal, with the volume of black ink at, for example 115 pl and the volume of color ink at, for example, 95 pl, as measured at room temperature), optimum print quality and reliability is achieved when the cartridge reaches steady state operating temperature in a printer provided with a heater to assist in drying the ink on the print medium.

Abstract: An ink cartridge for a thermal ink jet printer containing a separate collapsible ink reservoir which is kept under negative pressure by a pressure regulator to prevent ink leakage. The collapsible reservoir has a pair of flexible plastic membrane ink bag sidewalls each connected at their periphery to form an ink bag and an ink pressure regulator in the bag. The pressure regulator comprises a pair of spaced parallel side plates urged apart by a spring toward the adjacent bag sidewalls whereby the reservoir is collapsible against the spring pressure to an essentially flat shape to permit substantially complete dispensation of ink from the bag. Inadvertent puncture of the thin bag walls by the regulator is prevented by a protective edge guard in the form of a layer of tough plastic bonded to the outer surfaces of the sideplates, the protective layers each having a peripheral edge which extends beyond the edge of the side plate to prevent the edges of the sideplates from directly contacting the bag walls.