Abstract: A fluid ink delivery system includes a receptacle positioned proximate to a plurality of inkjet ejectors, and an ink supply in fluid communication with the receptacle. Ink held in the receptacle may be withdrawn under negative pressure by a pump in the ink supply. A flow restrictor in fluid communication with the pump limits the negative pressure level applied by the pump to be less than a pressure that draws air across a porous member in the receptacle.

Abstract: An imaging device includes a media transport system configured to transport print media along a media path. A first print station is positioned along the media path that is configured to apply ink to a first side of the media. A first fixing assembly is positioned along the media path downstream from the first print station. A second print station is positioned along the media path downstream from the first fixing assembly that is configured to apply ink to a second side of the media. A second fixing assembly is positioned along the media path downstream from the second print station. A heater is positioned along the media path downstream from the second fixing assembly that is configured to heat the media to a gloss reducing temperature.

Abstract: A new media path includes a flexible member that cooperates with a control point for smooth transitions of media sheets along the path. The media path includes an elongated member having a first end and a second end, the elongated member having a longitudinal axis and a cross-member axis perpendicular to the longitudinal axis, the elongated member having a first surface that is non-linear in at least one of the longitudinal and cross-member axes, and a bevel on a second surface of the elongated member, the bevel being proximate to the first end of the elongated member at a predetermined distance from the first end.

Abstract: A molten ink supply for a solid ink printing machine includes a container for storing solid ink pellets and a withdrawal tube having an inlet end disposed within the container. A vacuum generator is disposed at the outlet end of the withdrawal tube operable to draw a vacuum within the tube. A feed conduit is connected to the outlet end for receiving solid ink pellets drawn therein by said vacuum generator and conveying the pellets to a melting station operable to melt the solid ink pellets. An assist tube is provided within the container with a discharge nozzle disposed within the withdrawal tube at the inlet end and operable to provide a flow of air into the withdrawal tube to agitate solid ink pellets and facilitate withdrawal of the pellets by the vacuum generator.

Abstract: A cooling system is provided for an electric motor having control circuitry and including a motor housing surrounding the motor. The motor drives at least one radial fan at one end thereof for directing airflow through the motor housing across the motor. A fan housing encloses the cooling fan and defines a diverter chamber radially outboard of the fan that is sized to divert a portion of the airflow away from the electric motor. A control box contains the control circuitry and includes a base having a heat sink for contacting the control circuitry. The base defines a plenum in communication with the diverter chamber and a channel in communication with the plenum and the heat sink to direct the diverted airflow across the heat sink.

Abstract: A machine with a holder for mounting a motor to the device, which may be a printer, includes a support structure, a motor including a drive shaft with a drive shaft axis aligned with an opening in the support structure, and a holder including a base portion positioned adjacent to the motor, a first spring tab integrally formed with the base portion and operably contacting the motor to bias the motor toward the support structure, and a first latch arm integrally formed with the base portion and coupled with the support structure, the first latch arm resiliently deformed by the support structure in a direction away from the drive shaft axis.

Abstract: The present invention is directed to devices for performing PCR and monitoring the reaction of a sample comprising a nucleic acid and a fluorescent dye. Illustrative devices comprise a heat exchange component for heating and cooling the sample, a control device for repeatedly operating the heat exchange component to subject the sample to thermal cycling, an excitation source for optically exciting the sample to cause the sample to fluoresce, a photodetector for detecting temperature-dependent fluorescence levels from the sample, and a processor configured to record and process emissions from the fluorescent dye.

Abstract: A method enables linear web velocities generated with reference to angular velocity signals generated by encoders at different rollers in a double reflex printing registration system to be equalized. The method includes identifying a low frequency component of a first linear velocity of a moving web, identifying a high frequency component of a second linear velocity of the moving web, and computing a linear velocity for the moving web at a roller in a print zone with reference to the identified high frequency component of the second linear velocity and the identified low frequency component of the first linear velocity.

Abstract: An icemaker assembly includes an ice tray having at least one ice forming compartment. The ice forming compartment includes (i) a first planar lateral side surface, (ii) a second planar lateral side surface, and (iii) an arcuate bottom surface between the first lateral side surface and the second lateral side surface. The first planar surface and the second planar surface are positioned relative to each other so that (i) the first planar lateral side surface is spaced apart from the second planar lateral side surface at a downstream end of the ice forming compartment by a distance D1 relative to the ejection path of movement, (ii) the first planar lateral side surface is spaced apart from the second planar lateral side surface at an upstream end of the ice forming compartment by a distance D2 relative to the ejection path of movement, and (iii) D2 is greater than D1.

Abstract: The casting device (1) comprises a die (3) consisting of two die halves (3a, 3b) forming in their interior a die cavity (4). In addition, the casting device (1) comprises connected to the die cavity (4) a casting chamber (6), the outlet (9) of which can be closed off at least partially by means of a closure member (18,26). At least the one die half (3a) is provided with a vent passage (13) for evacuating the die cavity (4) and/or the casting chamber (6). The vent passage (13) ports into the die parting (12) of the one die half (3a) such that it can be closed off by the other die half (3b) when locking the die (3).

Abstract: A method of forming a nip with a skewed transfix roll includes positioning a first axis of rotation of a transfix roll at a skewed angle with respect to a second axis of rotation of an image drum, forming a nip with the skewed transfix roll and the image drum, and operating the printer with the nip formed with the skewed transfix roll.

Abstract: A method of simulating operation of a VLSI interconnect structure having capacitive and inductive coupling between nodes thereof. A matrix X and a matrix Y containing different combinations of passive circuit element values for the interconnect structure are obtained where the element values for each matrix include inductance L and inverse capacitance P. An adjacency matrix A associated with the interconnect structure is obtained. Numerical integration is used to solve first and second equations, each including as a factor the product of the inverse matrix X?1 and at least one other matrix, with first equation including X?1Y, X?1A, and X?1P, and the second equation including X?1A and X?1P.

Abstract: A spectral analysis apparatus includes a light transmissive envelope, first and second electrodes, a sleeve, and first and second electrical contacts. The light transmissive envelope contains a fluid operable to emit light when electrically energized. The first electrode is disposed upon an external surface of an end portion of the envelope external to the envelope. The second electrode is disposed upon an external surface of a second end portion external to the envelope. The sleeve defines a cavity configured to removably receive the envelope. The electrical contacts are in communication with the cavity and are configured to electrically connect to the corresponding electrode when the envelope is within the sleeve. The electrical contacts are connectable to an electrical power supply and electrically energize the fluid when connected to the electrical power supply.

Abstract: A system and method for registering a sheet includes a lateral motion motor coupled to a nip and idler roller assembly that provides lateral alignment of the sheet. A de-skew assembly pivots the lateral motion motor and the nip and idler roller assembly about a pivot axis that is proximate to the lateral motion motor to de-skew the sheet.

Abstract: A method enables a printing system to be operated in one of two registration control modes. The method includes operating at least one marking station with reference to a first velocity measurement of a web moving along a web path in response to a first registration control mode being active, the first velocity measurement corresponding to an angular velocity signal obtained from only a first roller in a web path, and operating the at least one marking station with reference to a second velocity measurement of the web moving along the web path in response to a second registration control mode being active, the second velocity measurement corresponding to at least two angular velocity signals obtained from at least the first roller and a second roller in the web path.

Abstract: A method of operating an inkjet imaging device more thoroughly cleans residual ink from an intermediate imaging member and disrupts any ghosted images that may have formed in the release agent.

Abstract: An inkjet printer includes a controller configured to operate the printer in a gel maintenance cycle to clean residual ink and other material from an image receiving member in the printer to maintain image quality in the printer. The controller operates the image receiving member and a drum maintenance unit in the printer to flood the image receiving member with release agent that is removed from the member by wipers in the drum maintenance unit. The removed release agent is removed from a sump, filtered, and returned to an applicator for use in printing operations.

Abstract: A system enables a printhead to be aligned independently of other printheads in a printhead assembly. The system includes a printhead configured to eject ink onto an image receiving member, a plate to which the printhead can be rigidly mounted and selectively removed, and a translation carriage to which the plate is rigidly mounted and locked into position with reference to a distance between the plate and the image receiving member, a pitch position, and a yaw position, the translation carriage being coupled to an actuator for movement of the translation carriage, plate, and printhead in a cross-process direction across the image receiving member.

Abstract: A printing apparatus has been developed that prints inkjet images on a continuous web with a configurable number of distinct ink colors.

Abstract: A method enables an inkjet printing system to attenuate image noise in an image of a test strip obtained as print media bearing the test strip travels over a roller in the printing system.