Patent application number | Description | Published |
20090135223 | LIQUID DROP DISPENSER WITH MOVABLE DEFLECTOR - A liquid dispenser includes a liquid supply channel, a liquid supply adapted to feed a stream of liquid through the supply channel, a liquid return channel adapted to receive liquid from the supply channel, a liquid dispensing outlet opening, and a diverter member selectively movable into the supply channel to divert droplets to the dispensing outlet opening. The liquid flows from the liquid supply channel to the liquid return channel by Coanda effect when not diverted. The motion of the diverter member is substantially orthogonal to and opposes the direction of liquid flow, so that energy associated with moving the diverter member imparts no energy to the diverted droplets. The energy associated with moving the diverter member is less than 100 nJ per pL droplet volume. In some embodiments, the energy associated with moving the diverter member is less than 10 nJ per pL droplet volume. | 05-28-2009 |
20090195612 | LIQUID DROP DISPENSER WITH MOVABLE DEFLECTOR - A liquid dispenser includes a liquid supply channel, a liquid supply adapted to feed a stream of liquid through the supply channel, a liquid return channel adapted to receive liquid from the supply channel, a liquid dispensing outlet opening, and a diverter member forming at least a portion of a wall of the liquid supply channel, said diverter member being selectively movable to form a convex surface along which liquid remains attached, thereby to divert droplets from the supply channel through the dispensing outlet opening. The motion of the diverter member is substantially orthogonal to the direction of liquid flow, so that energy associated with moving the diverter member imparts no energy to the diverted droplets. The energy associated with moving the diverter member is less than 100 nJ per pL droplet volume. | 08-06-2009 |
20100277522 | PRINTHEAD CONFIGURATION TO CONTROL JET DIRECTIONALITY - A method of printing and an apparatus for controlling the directionality of liquid emitted from nozzles of a printhead are provided. Example embodiments of the apparatus include directionality control of liquid jets or liquid drops using a liquid jet directionality control mechanism. Example embodiments of the liquid jet directionality control mechanism include asymmetric energy application device configurations, nozzle geometry configurations, liquid delivery channel geometry configurations, or combinations of these configurations. | 11-04-2010 |
20100277529 | JET DIRECTIONALITY CONTROL USING PRINTHEAD NOZZLE - A method of printing and an apparatus for controlling the directionality of liquid emitted from nozzles of a printhead are provided. Example embodiments of the apparatus include directionality control of liquid jets or liquid drops using a liquid jet directionality control mechanism. Example embodiments of the liquid jet directionality control mechanism include asymmetric energy application device configurations, nozzle geometry configurations, liquid delivery channel geometry configurations, or combinations of these configurations. | 11-04-2010 |
20100277552 | JET DIRECTIONALITY CONTROL USING PRINTHEAD DELIVERY CHANNEL - A method of printing and an apparatus for controlling the directionality of liquid emitted from nozzles of a printhead are provided. Example embodiments of the apparatus include directionality control of liquid jets or liquid drops using a liquid jet directionality control mechanism. Example embodiments of the liquid jet directionality control mechanism include asymmetric energy application device configurations, nozzle geometry configurations, liquid delivery channel geometry configurations, or combinations of these configurations. | 11-04-2010 |
20100295910 | PRINTHEAD WITH POROUS CATCHER - A printhead includes a catcher and a negative pressure source. The catcher includes a liquid drop contact structure. The liquid drop contact structure includes a plurality of pores, each of the plurality of pores having a substantially uniform size when compared to each other. The plurality of pores have a critical pressure point above which air can displace liquid from the plurality of pores. The negative pressure source is in fluid communication with the plurality of pores of the liquid contact structure. The negative pressure source includes a pressure regulator to control the negative pressure such that the negative pressure remains below the critical pressure point of the plurality of pores of the liquid drop contact structure. | 11-25-2010 |
20100295912 | POROUS CATCHER - A catcher for use in a continuous printhead includes a liquid drop contact structure and a reinforcing structure. The liquid drop contact structure includes a plurality of pores with each of the plurality of pores having a substantially uniform size when compared to each other. The reinforcing structure, which is in contact with the liquid drop contact structure, includes a plurality of fluid channels through which liquid from the plurality of pores can be removed. | 11-25-2010 |
20110109698 | LIQUID DROP DISPENSER WITH MOVABLE DEFLECTOR - A liquid dispenser includes a liquid supply channel and a liquid ejector channel that includes an outlet opening. A liquid supply provides a flow of a pressurized liquid through the liquid ejector channel from the liquid supply channel. The pressurized liquid has a momentum as the liquid moves through the liquid ejector channel. A liquid return channel receives the liquid after the liquid passes through the liquid ejector channel. A diverter member forms at least a portion of a wall of the liquid ejector channel. A portion of the diverter member is selectively movable away from the liquid flowing through the liquid ejector channel. The momentum of the liquid causes some of the liquid to be diverted through the outlet opening when the portion of the diverter member is moved away from the liquid flowing through the liquid ejector channel. | 05-12-2011 |
20110109699 | LIQUID DROP DISPENSER WITH MOVABLE DEFLECTOR - A liquid dispenser includes a liquid supply channel and a liquid ejector channel that includes an outlet opening. A liquid supply provides a flow of a pressurized liquid through the liquid ejector channel from the liquid supply channel. The pressurized liquid has a momentum as the liquid moves through the liquid ejector channel. A liquid return channel receives the liquid after the liquid passes through the liquid ejector channel. A diverter member forms at least a portion of a wall of the liquid ejector channel. A portion of the diverter member is selectively movable into the liquid flowing through the liquid ejector channel. The momentum of the liquid causes some of the liquid to be diverted through the outlet opening when the portion of the diverter member is moved into the liquid flowing through the liquid ejector channel. | 05-12-2011 |
20120026251 | LIQUID FILM MOVING OVER POROUS CATCHER SURFACE - A printhead includes a jetting module that forms liquid drops travelling along a first path. A deflection mechanism causes selected liquid drops formed by the jetting module to deviate from the first path and begin travelling along a second path. A catcher includes a stationary porous surface. A liquid film flows over the stationary porous surface of the catcher. The catcher is positioned relative to the first path such that the liquid drops travelling along one of the first path and the second path contact the liquid film. | 02-02-2012 |
20120026252 | PRINTING METHOD USING MOVING LIQUID CURTAIN CATCHER - A method of printing is includes providing liquid drops travelling along a first path using a jetting module. A moving liquid curtain is provided using a liquid source. Selected liquid drops are caused to deviate from the first path and begin travelling along a second path using a deflection mechanism such that the liquid drops travelling along one of the first path and the second path contact the liquid curtain in a drop interception region of the liquid curtain. The liquid curtain is collected downstream from the drop interception region using a liquid collection device. | 02-02-2012 |
20120026253 | PRINTING USING LIQUID FILM POROUS CATCHER SURFACE - A method of printing provides liquid drops travelling along a first path using a jetting module. A catcher including a stationary porous surface is also provided. A liquid film is caused to flow over the stationary porous surface of the catcher using a liquid source. Selected liquid drops are caused to deviate from the first path and begin travelling along a second path using a deflection mechanism. The liquid drops travelling along one of the first path and the second path contact the liquid film. | 02-02-2012 |
20120026261 | MOVING LIQUID CURTAIN CATCHER - A printhead includes a jetting module that forms liquid drops travelling along a first path. A deflection mechanism causes selected liquid drops formed by the jetting module to deviate from the first path and begin travelling along a second path. A moving liquid curtain is positioned relative to the first path such that the liquid drops travelling along one of the first path and the second path contact the liquid curtain in a drop interception region of the liquid curtain. A liquid collection device is positioned to collect the liquid curtain downstream from the drop interception region. | 02-02-2012 |
20120098884 | DISPENSING LIQUID USING ARRAY OF DISPENSING ELEMENTS - An array of liquid dispensing elements are positioned on a substrate. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate and is in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate and is in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate and is in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate and is in fluid communication with the liquid return channel. A liquid is provided that flows from the liquid supply passage through the liquid supply channel, through the liquid dispensing channel, through the liquid return channel to the liquid return passage of the array of liquid dispensing elements. A liquid drop is ejected from the outlet opening of the liquid dispensing channel of one of the liquid dispensing elements by selectively actuating the diverter member of the liquid dispensing element to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel of the liquid dispensing element. | 04-26-2012 |
20120098887 | LIQUID DISPENSER INCLUDING SLOPED OUTLET OPENING WALL - A liquid dispenser includes a liquid supply channel, a liquid return channel; and a liquid dispensing channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening. The outlet opening includes a downstream edge relative to a direction of liquid flow through the liquid dispensing channel. The downstream edge is sloped relative to the surface of the wall of the liquid dispensing channel. A liquid supply provides liquid that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098890 | DISPENSING LIQUID USING DISPENSER INCLUDING SECONDARY MANIFOLD - A liquid dispenser includes an array of liquid dispensing elements positioned on a substrate is provided. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate and is in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate and is in fluid communication with the liquid return channel. A liquid manifold is provided that includes a liquid supply duct and a liquid return duct. The liquid supply duct is in fluid communication with each liquid supply passage of each liquid dispensing element. The liquid return duct is in fluid communication with each liquid return passage of each liquid dispensing element. A liquid flows from the liquid supply duct of the liquid manifold through each liquid dispensing element to the liquid return duct of the liquid manifold. A liquid drop is ejected from the outlet opening of the liquid dispensing channel of one of the liquid dispensing elements by selectively actuating the diverter member of the liquid dispensing element to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel of the liquid dispensing element. | 04-26-2012 |
20120098891 | DISPENSING LIQUID USING CURVED VENT DISPENSER - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening. Another portion of the wall defines a drain located in the wall downstream from the outlet opening. The drain includes a radius of curvature as viewed from a direction perpendicular to the wall. A liquid is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098892 | DISPENSING LIQUID USING SLOPED OUTLET OPENING DISPENSER - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening that includes a downstream edge relative to a direction of liquid flow through the liquid dispensing channel. The downstream edge is sloped relative to the surface of the wall of the liquid dispensing channel. A liquid is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098893 | DISPENSER INCLUDING OVERLAPPING OUTLET AND RETURN PORT - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. The first wall includes a surface. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage extends through the second wall and is in fluid communication with the liquid supply channel. A liquid return passage is positioned through the second wall and is in fluid communication with the liquid return channel. The liquid return passage overlaps the outlet opening of the liquid dispensing channel as viewed from a direction perpendicular to the surface of the first wall of the liquid dispensing channel. A liquid supply provides liquid that flows from the liquid supply passage through the liquid supply channel, through the liquid dispensing channel, and through the liquid return channel to the liquid return passage. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098895 | DISPENSER INCLUDING ARRAY OF LIQUID DISPENSING ELEMENTS - A liquid dispenser includes an array of liquid dispensing elements positioned on a substrate. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate in fluid communication with the liquid return channel. A liquid supply provides liquid that flows from each liquid supply channel through each liquid dispensing element to each liquid return channel. Each diverter member is selectively activated to divert a portion of the liquid flowing through the associated liquid dispensing channel through the outlet opening of the associated liquid dispensing channel to dispense a drop of the liquid. | 04-26-2012 |
20120098899 | DISPENSING LIQUID USING DISPENSER WITH RETURN FILTER - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall that is positioned opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage is provided that extends through the second wall and is in fluid communication with the liquid supply channel. The liquid supply passage includes a porous member. A liquid return passage is provided that extends through the second wall and is in fluid communication with the liquid return channel. The liquid return passage includes a porous member. A liquid is provided that flows from the liquid supply passage through the liquid supply channel through the liquid dispensing channel through the liquid return channel to the liquid return passage. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098900 | DISPENSING LIQUID USING OVERLAPPING OUTLET/RETURN DISPENSER - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. The first wall includes a surface. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall that is positioned opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage is provided that extends through the second wall in and is fluid communication with the liquid supply channel. A liquid return passage is provided that extends through the second wall and is in fluid communication with the liquid return channel. The liquid return passage overlaps the outlet opening of the liquid dispensing channel as viewed from a direction perpendicular to the surface of the first wall of the liquid dispensing channel. A liquid is provided that flows from the liquid supply passage through the liquid supply channel through the liquid dispensing channel through the liquid return channel to the liquid return passage. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098902 | LIQUID DISPENSER INCLUDING MULTIPLE LIQUID RETURN PASSAGES - A liquid dispenser includes a liquid supply channel, a liquid return channel, and a liquid dispensing channel. The liquid dispensing channel includes a first wall. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage extends through the second wall and is in fluid communication with the liquid supply channel. A plurality of liquid return passages extends through the second wall and is in fluid communication with the liquid return channel. A liquid supply provides liquid that flows from the liquid supply passage through the liquid supply channel, through the liquid dispensing channel, and through the liquid return channel to the plurality of liquid return passages. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098903 | DISPENSING LIQUID USING DISPENSER INCLUDING MULTIPLE RETURNS - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a first wall. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage is provided that extends through the second wall and is in fluid communication with the liquid supply channel. A plurality of liquid return passages are provided that extend through the second wall and are in fluid communication with the liquid return channel. A liquid is provided that flows from the liquid supply passage through the liquid supply channel through the liquid dispensing channel through the liquid return channel to the plurality of liquid return passages. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098904 | LIQUID DISPENSER INCLUDING FILTER IN RETURN PORT - A liquid dispenser includes a liquid supply channel, a liquid return channel, and a liquid dispensing channel. The liquid dispensing channel includes a first wall. A portion of the first wall defines an outlet opening. The liquid dispensing channel includes a second wall opposite the first wall. The second wall of the liquid dispensing channel extends along a portion of the liquid supply channel and along a portion of the liquid return channel. A liquid supply passage extends through the second wall in fluid communication with the liquid supply channel. The liquid supply passage includes a porous member. A liquid return passage extends through the second wall and is in fluid communication with the liquid return channel. The liquid return passage includes a porous member. A liquid supply provides liquid that flows from the liquid supply passage through the liquid supply channel, through the liquid dispensing channel, and through the liquid return channel to the liquid return passage. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098905 | LIQUID DISPENSER INCLUDING VERTICAL OUTLET OPENING WALL - A liquid dispenser includes a liquid supply channel, a liquid return channel, and a liquid dispensing channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening. The outlet opening includes a downstream edge relative to a direction of liquid flow through the liquid dispensing channel. The downstream edge is perpendicular to the surface of the wall of the liquid dispensing channel. A liquid supply provides liquid that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098906 | DISPENSING LIQUID USING VERTICAL OUTLET OPENING WALL - A liquid dispenser is provided that includes a liquid supply channel, a liquid dispensing channel, and a liquid return channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening that includes a downstream edge relative to a direction of liquid flow through the liquid dispensing channel. The downstream edge is perpendicular to the surface of the wall of the liquid dispensing channel. A liquid is provided that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A liquid drop is caused to be ejected from the outlet opening of the liquid dispensing channel by selectively actuating a diverter member to divert a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098907 | LIQUID DISPENSER INCLUDING CURVED VENT - A liquid dispenser includes a liquid supply channel, a liquid return channel, and a liquid dispensing channel. The liquid dispensing channel includes a wall. The wall includes a surface. A portion of the wall defines an outlet opening. A drain is located in the wall downstream from the outlet opening. The drain includes a radius of curvature as viewed from a direction perpendicular to the wall. A liquid supply provides liquid that flows from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member selectively diverts a portion of the flowing liquid through the outlet opening of the liquid dispensing channel. | 04-26-2012 |
20120098908 | LIQUID DISPENSER INCLUDING SECONDARY LIQUID MANIFOLD - A liquid dispenser includes an array of liquid dispensing elements positioned on a substrate. Each liquid dispensing element includes a liquid dispensing channel positioned on the substrate. The liquid dispensing channel includes an outlet opening positioned on a wall opposite the substrate. A diverter member is associated with the liquid dispensing channel. A liquid return channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply channel is positioned on the substrate in fluid communication with the liquid dispensing channel. A liquid supply passage extends through the substrate and is in fluid communication with the liquid supply channel. A liquid return passage extends through the substrate and is in fluid communication with the liquid return channel. A liquid manifold includes a liquid supply duct and a liquid return duct. The liquid supply duct is in fluid communication with each liquid supply passage of each liquid dispensing element. The liquid return duct is in fluid communication with each liquid return passage of each liquid dispensing element. A liquid supply provides liquid that flows from the liquid supply duct of the liquid manifold through each liquid dispensing element to the liquid return duct of the liquid manifold. Each diverter member is selectively activated to divert a portion of the liquid flowing through the associated liquid dispensing channel through the outlet opening of the associated liquid dispensing channel to dispense a drop of the liquid. | 04-26-2012 |
20120268525 | CONTINUOUS EJECTION SYSTEM INCLUDING COMPLIANT MEMBRANE TRANSDUCER - A continuous liquid ejection system includes a substrate and an orifice plate affixed to the substrate. Portions of the substrate define a liquid chamber. The orifice plate includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the liquid chamber and is free to move relative to the liquid chamber. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member and a second portion of the compliant membrane is anchored to the substrate. The compliant membrane includes an orifice. A liquid supply provides a liquid to the liquid chamber under a pressure sufficient to eject a continuous jet of the liquid through the orifice located in the compliant membrane of the orifice plate. The MEMS transducing member is selectively actuated to cause a portion of the compliant membrane to be displaced relative to the liquid chamber to cause a drop of liquid to break off from the liquid jet. | 10-25-2012 |
20120268529 | CONTINUOUS LIQUID EJECTION USING COMPLIANT MEMBRANE TRANSDUCER - A method of continuously ejecting liquid includes providing a liquid ejection system that includes a substrate and an orifice plate affixed to the substrate. Portions of the substrate define a liquid chamber. The orifice plate includes a MEMS transducing member. A first portion of the MEMS transducing member is anchored to the substrate. A second portion of the MEMS transducing member extends over at least a portion of the liquid chamber. The second portion of the MEMS transducing member is free to move relative to the liquid chamber. A compliant membrane is positioned in contact with the MEMS transducing member. A first portion of the compliant membrane covers the MEMS transducing member and a second portion of the compliant membrane is anchored to the substrate. The compliant membrane includes an orifice. Liquid is provided under a pressure sufficient to eject a continuous jet of the liquid through the orifice located in the compliant membrane of the orifice plate by a liquid supply. A drop of liquid is caused to break off from the liquid jet by selectively actuating the MEMS transducing member which causes a portion of the compliant membrane to be displaced relative to the liquid chamber. | 10-25-2012 |
20140307029 | PRINTHEAD INCLUDING TUNED LIQUID CHANNEL MANIFOLD - A continuous liquid ejection printhead includes a plurality of nozzles having a nozzle to nozzle spacing of X. Each nozzle of the plurality of nozzles is in fluid communication with a liquid supply channel through a liquid dispensing channel. The liquid supply channel includes a liquid inlet. The liquid inlets of the liquid supply channels have a center to center inlet to inlet spacing that is greater than X. | 10-16-2014 |
20140307033 | PRE-HEATING LIQUID EJECTED FROM A LIQUID DISPENSER - A liquid dispenser array structure includes a substrate including a plurality of liquid dispensers. The plurality of liquid dispensers includes a liquid supply channel, a liquid dispensing channel including an outlet opening, and a liquid return channel including a vent located downstream relative to the location of the outlet opening of the liquid dispensing channel. A selectively actuatable first heater heats a portion of the liquid flowing through the liquid supply channel. A selectively actuatable second heater diverts the portion of the liquid previously heated by the first heater toward the outlet opening of the liquid dispensing channel. A liquid supply provides liquid under pressure to the plurality of liquid dispensers. | 10-16-2014 |
20140307035 | PRINTHEAD INCLUDING ACOUSTIC DAMPENING STRUCTURE - A printhead includes a nozzle plate including a plurality of nozzles and a plurality of liquid chambers. Each liquid chamber is in fluid communication with a respective one of the plurality of nozzles. An acoustic dampening structure includes a plurality of sets of air pockets and liquid flow restrictors. Each liquid chamber is in fluid communication with one of the sets of air pockets and liquid flow restrictors. A common liquid supply manifold is in fluid communication with each liquid chamber through the liquid flow restrictor associated with the liquid chamber. | 10-16-2014 |
20140307036 | PRINTHEAD INCLUDING ACOUSTIC DAMPENING STRUCTURE - A printhead includes a plurality of liquid channels and a nozzle plate. The nozzle plate includes a plurality of nozzles and an acoustic dampening structure. The acoustic dampening structure includes a plurality of sets of air pockets and liquid flow restrictors. Each set of air pockets and liquid flow restrictors is in fluid communication with a respective one of the plurality of nozzles. Each liquid channel is in fluid communication with the respective one of the plurality of nozzles through the associated liquid flow restrictor. A common liquid supply manifold is in fluid communication with the plurality of liquid chambers. | 10-16-2014 |