Patent application number | Description | Published |
20080278548 | PRINTER HAVING IMPROVED GAS FLOW DROP DEFLECTION - A drop generator operable to selectively form a drop having a first size and a drop having a second size from liquid emitted through a nozzle associated with the drop generator. The drop having the first size and the drop having the second size travel along a drop trajectory with the first size being larger than the second size when compared to each other. Each of the drops has a drop velocity. A gas flow deflection system includes a gas flow that is directed at a deflection zone that comprises at least a portion of the drop trajectory. The gas flow in the deflection zone includes a velocity vector having a parallel velocity component and a perpendicular velocity component with the parallel velocity component and the perpendicular velocity component being defined relative to the drop trajectory. | 11-13-2008 |
20090295863 | CONTINUOUS INKJET PRINTHEAD NOZZLE CAP - A printhead includes a jetting module, a catcher, a drop deflection mechanism, and a capping mechanism. The jetting module includes an array of nozzles and is operable to form liquid drops from liquid emitted through the nozzles of the nozzle array. The catcher collects some of the liquid drops. The drop deflection mechanism deflects the liquid drops such that some of the liquid drops contact the catcher while other liquid drops are allowed to contact a print media. The capping mechanism includes a capping member located between the nozzle array of the jetting module and the drop deflection mechanism. The capping member has a first position covering the nozzle array and a second position removed from the nozzle array. | 12-03-2009 |
20090295878 | JETTING MODULE INSTALLATION AND ALIGNMENT APPARATUS - A mechanism for aligning the jetting module in a continuous inkjet printhead and for making fluid and electrical connections to the jetting module without compromising the alignment is disclosed. A mechanism to aid in installing the jetting module is also disclosed. | 12-03-2009 |
20090295879 | CONTINUOUS PRINTHEAD CONTOURED GAS FLOW DEVICE - A continuous liquid printing system gas flow device includes a gas flow duct structure including a first wall and a second wall. The first wall and the second wall are positioned spaced apart and opposite each other to form an opening. The first wall is contoured such that a distance between the first wall and the second wall varies when viewed in a direction perpendicular to the opening. | 12-03-2009 |
20090295880 | CONTINUOUS PRINTHEAD GAS FLOW DUCT INCLUDING DRAIN - In an inkjet printhead using a gas flow, typically air, to deflect select drop into catch, gas flow (air) ducts are employed to direct the air across the drop trajectories. Improved air ducts include liquid flow channels in a wall of the air duct are provided to allow ink to be removed from the air duct without disrupting the air flow in the duct. A process for cleaning the air duct using the liquid flow channel is also provided. | 12-03-2009 |
20100110149 | DEFLECTION DEVICE INCLUDING GAS FLOW RESTRICTION DEVICE - A continuous inkjet printhead includes a jetting module including a nozzle operable to eject a continuous stream of fluid through the nozzle, a stimulation device operable to break the stream of fluid into first and second droplets having first and second volumes, wherein the droplet volumes travel along a first path, and a drop deflection mechanism that includes a gas flow path, a first flow path restriction positioned within the flow path, and a second flow path restriction positioned within the flow path, the second flow path restriction being non-parallel relative to the first flow path restriction, the drop deflection mechanism providing a gas flow which interacts with the first and second droplets to cause at least one of the first and second droplets to begin traveling along a second path. | 05-06-2010 |
20100309255 | FIELD REPLACEABLE JETTING MODULE - A jetting module for installation in a printhead of a printer is provided. The printhead includes a set of mounting features, a set of fluid and electrical connections, and at least a portion of a drop deflection mechanism. The jetting module includes a nozzle plate, a set of mounting features, and a set of fluid and electrical connections. The set of mounting features of the jetting module is configured to engage the set of mounting features of the printhead. The set of fluid and electrical connections of the jetting module corresponds to the set of fluid and electrical connections of the printhead. The set of fluid and electrical connections of the jetting module are located relative to the set of mounting features of the jetting module such that a force applied to couple the set of fluid and electrical connections of the jetting module and the set of fluid and electrical connections of the printhead provides force to maintain contact between the set of mounting features of the jetting module and the set of mounting features of the printhead. | 12-09-2010 |
20110314650 | ALIGNMENT ASSEMBLY FOR USE WITH A PRINTHEAD - An alignment component includes a first member, a second member, and a plurality of locating elements. The first member includes at least one surface. The second member includes a plurality of through holes that include a first through hole and a second through hole positioned relative to each other. The second member is affixed with the first member such that a first pocket and a second pocket are formed, each of the first pocket and the second pocket having a wall corresponding to a wall of one of the first through hole and the second through hole. Each of the first pocket and the second pocket have a base corresponding to a surface of the one or more surfaces of the first member. The plurality of locating elements include a first locating element positioned with an interference fit in the first pocket and a second locating element positioned with an interference fit in the second pocket. The wall of the first pocket and the wall of the second pocket define a first component of position of the first locating element relative to the second locating element. The base of the first pocket and the base of the second pocket define a second component of position of the first locating element relative to the second locating element. | 12-29-2011 |
20110316933 | PRINTHEAD INCLUDING ALIGNMENT ASSEMBLY - A printhead includes a printhead module, a printhead frame, and an alignment assembly. The printhead module includes a plurality of nozzles adapted for emitting liquid from the printhead module. The alignment assembly aligns the printhead module and the printhead frame relative to each other and includes a base plate, a locator plate, a first set of locating elements, and a coupling member. The base plate includes a surface. The locator plate includes a plurality of through holes positioned relative to each other on a surface of the locator plate. The locator plate is affixed with the base plate such that a plurality of pockets are formed with each pocket having a wall corresponding to a wall of one of the through holes and a base corresponding to a surface of the base plate. Each of the locating elements of the first set are positioned with an interference fit in a respective one of the pockets. The walls of the pockets define positions of the locating elements of the first set relative to one another in a plane of the surface of the locator plate. The bases of the pockets define positions of the locating elements of the first set relative to one another in a direction normal to the surface of the base plate. The coupling member includes a second set of locating elements with each of the locating elements of the second set adapted for contact with one the locating elements of the first set. | 12-29-2011 |