| Patent application number | Description | Published |
|---|
| 20080266339 | Banding adjustment method for multiple printheads - A banding adjustment method for an ink jet imaging device having a plurality of printheads comprises printing a plurality of test bands, each test band being printed by a plurality of printheads such that each printhead of the plurality prints a section of each test band. The drop mass generated by each printhead of the plurality is selectively adjusted between a default drop mass and an adjusted drop mass to print each test band of the plurality such that the plurality of printed test bands have various combinations of sections having the default drop mass and the adjusted drop mass. The user is then prompted to select a test band from the plurality of printed test bands. | 10-30-2008 |
| 20080266340 | Method for normalizing a printhead assembly - A method of adjusting an ink jet imaging device comprises measuring a drop parameter for drops generated by each drop generator in a plurality of drop generators. Each drop generator is configured to generate a drop in response to a drop generating signal having a fill portion, an eject portion, and a resonance tuning portion. A first portion of the drops are generated by each drop generator at a first fill density, and a second portion of the drops are generated by each drop generator at a second fill density. A drop parameter difference is measured for each drop generator of the plurality of drop generators of drops generated at the first and second fill densities. The resonance tuning portion of the drop generating signal for at least one drop generator is adjusted so that the drop parameter difference for the drop generator corresponds to the drop parameter difference normalization value. | 10-30-2008 |
| 20090244182 | INJET JET STACK EXTERNAL MANIFOLD - An inkjet external ink manifold is provided that allows for use of a jet stack that does not internally contain ink manifolds. The external ink manifold has a manifold body that includes one or more ink manifold chambers and includes ports arranged to connect the chambers to one or more ink reservoirs. The external ink manifold further includes an adhesive layer overlying and sealing the ink manifold chambers. The adhesive layer includes a plurality of ports arranged to connect the external ink manifold chambers to the jet stack. | 10-01-2009 |
| 20100045737 | EXTERNAL FLUID MANIFOLD WITH POLYMER COMPLIANT WALL - A fluid dispensing assembly having a fluid dispensing subassembly to deliver fluid to a substrate, an external manifold to supply fluid having a first wall arranged adjacent to the fluid dispensing subassembly, and a compliant wall attached to a second wall arranged opposite the first wall, the compliant wall to confine the fluid to chambers in the manifold and to provide compliance for acoustic attenuation. A fluid dispensing assembly having an external manifold having at least one opening in a back side opposite a fluid dispensing subassembly side, the fluid dispensing subassembly side being in contact with fluid, and a compliant wall adhered to the external manifold on the back side. A method of manufacturing a fluid dispensing assembly having forming an external manifold having openings to receive fluid, attaching a compliant wall to the external manifold such that the compliant wall seals the openings, and attaching the external manifold to a fluid dispensing subassembly wherein the fluid dispensing subassembly and manifold are on opposite sides of a transducer arranged to operate on the fluid in the manifolds. | 02-25-2010 |
| 20100045738 | FLUID DISPENSING SUBASSEMBLY WITH COMPLIANT FILM - A fluid dispensing subassembly includes a diaphragm arranged to be operated on by a transducer, an aperture array through which fluid is forced onto a substrate, a manifold body between the diaphragm and the aperture array, a spacer between the manifold body and the aperture array, the spacer arranged to form a gap at least partially overlapping the manifold, and a compliant film arranged between the manifold body and the spacer such that the fluid resides on a side of the film adjacent the manifold, and that the film is unsupported by the spacer over a least a portion of the manifold. A fluid dispensing subassembly, includes a first set of plates including a diaphragm to be operated on by a transducer, a second set of plates including at least one manifold plate to direct ink to an aperture plate forming an exterior surface of the second set of plates, and a polymer compliant film arranged in between the first and second sets of plates to attach the first and second sets of plates together to form the fluid dispensing subassembly. A method of manufacturing a fluid dispensing subassembly includes forming a first structure of at least a diaphragm, forming a second structure of at least a manifold body, placing a polymer compliant film between the first and second structures, and using the polymer compliant film as an adhesive to attach the first and second structures of plates together, forming a fluid dispensing subassembly. | 02-25-2010 |
| 20100045740 | FLUID DISPENSING SUBASSEMBLY WITH COMPLIANT APERTURE PLATE - A printer fluid dispensing subassembly has a fluid dispensing body having at least one transducer and at least one ink channel, and a compliant polymer aperture film having an array of apertures to direct fluid toward a substrate, the polymer aperture film bonded to the fluid dispensing body as an external layer of the fluid dispensing body, the polymer aperture film arranged to form a wall of a manifold in the fluid dispensing body and to attenuate acoustic energy. A printer fluid dispensing subassembly has a compliant polymer aperture film having an array of apertures to allow fluid to exit the fluid dispensing subassembly, and a fluid dispensing body bonded to a back surface of the polymer aperture film such that the polymer aperture film forms a wall of a fluid manifold, the film being arranged such that a side of the polymer opposite the fluid dispensing body is air. A printer has an ink supply, and a printhead to receive fluid from the ink supply and form images on a substrate by selectively actuating an array of transducers in a fluid dispensing subassembly, the fluid dispensing subassembly including a compliant polymer aperture film having apertures through which fluid is forced in response to the actuating of the transducers, the polymer aperture film arranged to attenuate acoustic energy from the actuating of the transducers. | 02-25-2010 |
| 20100045754 | FLUID RESERVOIR WITH COMPLIANT WALL - A fluid dispensing assembly has a fluid reservoir, a reservoir structure having at least one opening corresponding to a location of at least one fluid chamber in the reservoir structure, and a compliant film arranged to seal the opening and flex in response to pressure fluctuations in the fluid chamber. A system has a fluid supply, a fluid dispensing assembly having a fluid reservoir to receive fluid from the fluid supply, the fluid dispensing assembly having a reservoir structure with at least one opening corresponding to at least one fluid chamber, and a compliant film arranged to cover the opening such that a side of the film contacts fluid in the chamber and a side opposite the side contacting the fluid contacts air and is arranged to allow the film to flex. | 02-25-2010 |
| 20100141703 | METHOD FOR LASER DRILLING FLUID PORTS IN MULTIPLE LAYERS - A method includes attaching multiple layers to a back side of at least a portion of a fluid dispensing subassembly having at least one inlet port to form a fluid dispensing assembly, aligning a laser to a region of the fluid dispensing assembly, the region corresponding to the inlet port, and forming at least one hole in the region using a laser, the hole completing a path through the layers to the inlet port. A fluid dispensing assembly has a fluid dispensing subassembly having at least one inlet port, a fluid manifold having at least one outlet, at least two layers between the fluid dispensing subassembly and the manifold, and a fluid path in the at least two layers between the outlet and the inlet port, the fluid path having smooth walls and substantially uniform width. | 06-10-2010 |
| 20100263791 | FLUID DISPENSING SUBASSEMBLY WITH COMPLIANT FILM - A fluid dispensing subassembly includes a diaphragm arranged to be operated on by a transducer, an aperture array through which fluid is forced onto a substrate, a manifold body between the diaphragm and the aperture array, a spacer between the manifold body and the aperture array, the spacer arranged to form a gap at least partially overlapping the manifold, and a compliant film arranged between the manifold body and the spacer such that the fluid resides on a side of the film adjacent the manifold, and that the film is unsupported by the spacer over a least a portion of the manifold. A fluid dispensing subassembly, includes a first set of plates including a diaphragm to be operated on by a transducer, a second set of plates including at least one manifold plate to direct ink to an aperture plate forming an exterior surface of the second set of plates, and a polymer compliant film arranged in between the first and second sets of plates to attach the first and second sets of plates together to form the fluid dispensing subassembly. A method of manufacturing a fluid dispensing subassembly includes forming a first structure of at least a diaphragm, forming a second structure of at least a manifold body, placing a polymer compliant film between the first and second structures, and using the polymer compliant film as an adhesive to attach the first and second structures of plates together, forming a fluid dispensing subassembly. | 10-21-2010 |
| 20100295901 | FLUID DISPENSING SUBASSEMBLY WITH POLYMER LAYER - A fluid dispensing subassembly has a diaphragm arranged to be operated on by a transducer, a body pressure chamber arranged to be operated on by the diaphragm, and an adhesive attachment layer arranged between the diaphragm and the body pressure chamber. A fluid dispensing subassembly has a body pressure chamber formed of either a single plate or set of plates, a diaphragm arranged to operate on the body pressure chamber, and an adhesive layer arranged between the body pressure chamber and the diaphragm. A method of manufacturing a fluid dispensing subassembly includes forming a body pressure chamber from a body plate or a set of plates including a body plate, and adhesively bonding a diaphragm plate to at least the body plate of the fluid dispensing subassembly. | 11-25-2010 |
| 20110284657 | DROP GENERATOR - A method for making an electromechanical device including forming an electromechanical transducer that includes a deposited metallic diaphragm, and attaching the electromechanical transducer to a fluid channel substructure. | 11-24-2011 |
| 20110298871 | ELECTRICAL INTERCONNECT USING EMBOSSED CONTACTS ON A FLEX CIRCUIT - A print head has a jet stack having an array of jets, an array of transducers arranged on the jet stack such that each transducer corresponds to a jet in the array of jets, and a flexible circuit substrate arranged adjacent the array of transducers such that contact pads on the flexible circuit substrate make electrical connection to at least some of the array of transducers, the flexible circuit substrate being embossed so that the contact pads extend out of a plane of the flexible circuit substrate. A method of manufacturing a print head includes forming a jet stack having an array of jets, arranging an array of transducers on the jet stack such that each transducer in the array of transducers corresponds to each jet in the array of jets, embossing a flexible circuit substrate having contact pads such that the contact pads extend out of a plane of the flexible circuit substrate, and arranging the flexible circuit substrate such that the contact pads electrically connect to at least some of the transducers in the array of transducers. | 12-08-2011 |
| 20120092416 | Metalized Polyimide Aperture Plate And Method For Preparing Same - An aperture plate including a first layer having a first emissivity; a second layer having a second emissivity disposed over the first layer; wherein the first emissivity is higher than the second emissivity; and optionally, at least one additional layer disposed over the second layer. A method for preparing an aperture plate including providing a first layer having a first emissivity; disposing a second layer having a second emissivity over the first layer; wherein the first emissivity is higher than the second emissivity; optionally, disposing at least one additional layer over the second layer; and forming at least one aperture, wherein aperture formation can be before or after disposing the second layer over the first layer. An ink jet print head having an aperture plate including a first layer having a first emissivity; a second layer having a second emissivity disposed over the first layer; wherein the first emissivity is higher than the second emissivity; optionally, at least one additional layer disposed over the second layer; wherein one of the optional at least one additional layers disposed over the second layer is a coating layer for controlling surface tension. | 04-19-2012 |
| 20120222307 | FLUID DISPENSING SUBASSEMBLY WITH POLYMER LAYER - A fluid dispensing subassembly has a diaphragm arranged to be operated on by a transducer, a body pressure chamber arranged to be operated on by the diaphragm, and an adhesive attachment layer arranged between the diaphragm and the body pressure chamber. A fluid dispensing subassembly has a body pressure chamber formed of either a single plate or set of plates, a diaphragm arranged to operate on the body pressure chamber, and an adhesive layer arranged between the body pressure chamber and the diaphragm. A method of manufacturing a fluid dispensing subassembly includes forming a body pressure chamber from a body plate or a set of plates including a body plate, and adhesively bonding a diaphragm plate to at least the body plate of the fluid dispensing subassembly. | 09-06-2012 |
| 20120274706 | PATTERNED METALLIZATION ON POLYIMIDE APERTURE PLATE FOR LASER-ABLATED NOZZEL - An aperture plate for a print head of a printer can include a first layer having a first emissivity which is covered by a second layer having a second emissivity which is less than the first emissivity. In an embodiment, the second layer can be etched at nozzle locations to form openings in the second layer which have widths/areas greater than widths/areas of nozzles formed in the first layer. In another embodiment, the second layer can have a smaller thickness at the nozzle locations and a larger thickness away from the nozzle locations. Forming the openings in the second layer which are larger than the nozzles, or forming the second layer thinner at the nozzle locations prior to forming the nozzles, can provide a well-formed nozzle and an aperture plate having a low emissivity. | 11-01-2012 |
| 20120281044 | OFFSET INLETS FOR MULTICOLOR PRINTHEADS - An inkjet array has been developed that enables inlets for one group of inkjet ejectors to be laterally offset from the nozzles of the inkjet ejectors in the group and also enables inlets for another group of inkjet ejectors to be laterally offset from the nozzles of the inkjet ejectors in the other group. The lateral offset distance increases the distance between the inlets of the two groups to provide a wider bonding area between the two groups and improve the fluidic isolation between the two groups of inkjet ejectors. | 11-08-2012 |
| 20130127952 | METHOD FOR LASER DRILLING FLUID PORTS IN MULTIPLE LAYERS - A method includes attaching multiple layers to a back side of at least a portion of a fluid dispensing subassembly having at least one inlet port to form a fluid dispensing assembly, aligning a laser to a region of the fluid dispensing assembly, the region corresponding to the inlet port, and forming at least one hole in the region using a laser, the hole completing a path through the layers to the inlet port. A fluid dispensing assembly has a fluid dispensing subassembly having at least one inlet port, a fluid manifold having at least one outlet, at least two layers between the fluid dispensing subassembly and the manifold, and a fluid path in the at least two layers between the outlet and the inlet port, the fluid path having smooth walls and substantially uniform width. | 05-23-2013 |
| 20130162737 | POLYMER INTERNAL CONTAMINATION FILTER FOR INK JET PRINTHEAD - A printhead for printing ink includes a particulate filter manufactured from a polymer sheet such as a polyimide sheet. Filter openings within the particulate filter can be formed using a mask and a laser beam to ablate exposed portions of the polymer sheet. Embodiments of the present teachings can result in the formation smaller filter openings at a smaller pitch within the polymer sheet than, for example, stainless steel particulate filters, and thus more openings which cover a larger percentage of the filter surface for a given filter size, which can result in a reduction of fluid pressure within the printhead. Thus smaller filter openings for improved filtering of smaller particulates can be formed while maintaining a sufficient ink flow at a sufficiently low pressure within the printhead during operation. | 06-27-2013 |
| 20130187981 | ROCK SCREEN WITH PARTICLE TRAP - The possibility that narrow, high aspect ratio particles will pass through a rock screen of a print head is reduced by minimizing the number of times the particles interact with the rock screen. Each interaction is an opportunity for the particle to be positioned in an orientation such that it may pass through the rock screen. The reduction in particles passing through the rock screen is achieved by positioning a particle trap adjacent to the rock screen perimeter to collect debris that sloughs off the rock screen. | 07-25-2013 |
