Silverbrook Research Pty Ltd

Memjet Technology Limited

Kia Silverbrook

Gregory Michael Tow

Tobin Allen King

Geoffrey Philip Dyer

Attila Bertok

Robert John Brice

Christopher Hibbard

Paul Ian Mackey

Paul Lapstun

David William Jensen

Nicholas Kenneth Abraham

Vesa Karppinen

David John Worboys

Miao Wang

Matthew John Underwood

Zhenya Yourlo

Patrick McAuliffe

John Douglas Morgan

Patrick John Mcauliffe

Patrick Mcauliffe

Attilla Bertok

An ink tank for an ink delivery system includes: a housing having an ink inlet port and an ink outlet port; an air vent communicating with a headspace of the ink tank; a filter positioned in the housing for filtering ink supplied from the ink tank via the ink outlet port; and a baffle plate positioned in the housing between the ink inlet port and the filter. The baffle plate is configured for directing air bubbles entering the ink tank via the ink inlet port towards the headspace of the ink tank. A baffle opening is positioned towards a base of the ink tank, thereby allowing ink to flow from the ink inlet port towards the ink outlet port via the baffle opening.

Ink tank with integrated filter

A mobile device having printhead for printing onto a media substrate, a media feed path along which the media substrate is fed past the printhead, and a capper assembly. The capper assembly is movable between a capped position covering the array of nozzles and an uncapped position spaced from the array of nozzles. The capper assembly is held in the uncapped position by the media substrate such that the capper assembly moves to the capped position upon disengagement with the media substrate.

Mobile device with printer

A mobile telephone includes an optical sensing arrangement enabling the telephone to decode tags of coded data printed on media fed through the telephone via internal and external media pathway defined by a body of the telephone; a beam splitter deflecting incoming light onto an image sensor of the telephone; a first infrared LED directing light onto media present in the external pathway; a filter and lens arrangement receiving and directing light reflected from the external media onto the beam splitter; a second infrared LED directing light onto media present in the internal pathway; and a mirror arrangement directing light reflected from the internal media into the beam splitter. The coded data contains printing instructions for the printhead, and the filter and lens arrangement includes an infrared filter for removing non-infrared ambient light, whereby a signal to noise ratio of the reflected light is improved.

Mobile telephonehaving internal inkjet printhead arrangement and an optical sensing arrangement

A mobile device that is (a) an inkjet printhead, (b) a print media feed path extending past the printhead, (c) a capping mechanism with a capper moveable between a capping position, in which the capper is urged into a capping relationship with the printhead, and an uncapped position, where the capper is spaced from the printhead, and (d) a locking mechanism configured to move the capper to the uncapped position in response to engagement with the media such that the capper returns to the capped position upon disengagement with the media.

Mobile device with a printhead and a capper actuated by contact with the media to be printed

A sheet feed mechanism includes a chassis for supporting a stack of sheets; a top sheet engaging member for engaging a top most sheet of the stack; a stack engaging structure, a first end of the stack engaging structure engaging the stack of sheets to bias a top most sheet of the stack of sheets against the top sheet engaging member, the stack engaging structure being supported from the chassis by a resilient member; a friction surface extending perpendicularly from a second end of the stack engaging structure opposite to the first end; a lock mechanism having a lock arm hingedly connected to the chassis, the lock mechanism including a biased contact foot for engaging the friction surface to retard a rectilinear movement of the stack engaging structure; and an actuator for engaging and disengaging the contact foot from the friction surface.

Sheet feed mechanism

An inkjet printer has a body mounting first and second gear assemblies. The first assembly cooperating with a motor gear and having a code feature. The second assembly rotatably cooperating with the first assembly and a capper for capping a printhead. The code feature cooperates with a holding feature of a mounting arrangement used to mount the second assembly so that the cooperation maintains the first assembly at a predetermined position during the mounting of the second assembly. The first assembly has first and second gears connected by a common shaft. The first gear meshes with the motor gear and the second gear meshes with the second assembly. The second assembly has a third gear mounted to the body by a pin which meshes with the second gear. The third gear is an eccentric gear.

Printer having eccentrically coded capping mechanism

A method of assembling a gear arrangement for a capper of an inkjet printer includes the steps of: mounting a first gear assembly to the printer to cooperate with a motor gear for driving rotation of the first gear assembly, the first gear assembly including a driving gear from which a code feature protrudes, the driving gear meshed with the motor gear; engaging the printer with a jig; and mounting a second gear assembly to the printer using the jig, the second gear assembly mounted to cooperate with the first gear assembly to be rotatable therewith and to further cooperate with a capper for capping a printhead so that the rotation of the second gear assembly moves the capper out of and into capping position. The step of mounting the second gear assembly further includes a step of sliding a slider block of the holding feature about the code feature of the driving gear, whereby the code feature cooperate with the holding feature to maintain the first gear assembly at a predetermined position during the mounting of the second gear assembly.

Method of assembling printhead capping mechanism

A printhead assembly with a printhead and a shut off () valve that has a valve body () defining an ink inlet () for connection to an ink supply, an ink outlet () connected to the printhead IC. A diaphragm () is biased into sealing engagement with the valve seat () to provide a fluid seal between the ink inlet and the ink outlet. An actuator () unseals the diaphragm from the valve seat when energized. The valve protects the ink in the ink supply from contaminants that can migrate up the ink line during shut down periods. The diaphragm is biased to a closed position and so seals the ink supply from the printhead as a default condition even in the event of a power failure. The bias is strong enough to provide the fluid seal so that the seal is not compromised when the pressure difference between the inlet and the outlet is small.

Printhead assembly with ink supply shut off

A force sensor particularly suited for use in an electronic stylus that senses an applied force on its nib for recording pen strokes and handwriting recognition. The sensor has a load bearing member for receiving an input force to be sensed and associated circuitry for converting the input force into an output signal indicative of the input force. A coupling at least partially transmits the applied force to be the input force acting on the load bearing member. The force transfer coupling transferring the forces so that the applied force and the input force are not co-linear.

Force sensor with angled coupling

A gear arrangement for a capper of an inkjet printer comprises a first gear assembly mounted to the printer so as to cooperate with a motor gear for driving rotation of the first gear assembly, the first gear assembly having a code feature; and a second gear assembly mounted to the printer so as to cooperate with the first gear assembly to be rotatable therewith, the second gear assembly, in use, cooperating with a capper for capping a printhead so that the rotation of the second gear assembly moves the capper out of and into its capping position. The code feature of the first gear assembly is arranged to cooperate with a holding feature of a mounting arrangement used to mount the second gear assembly to the printer, the code feature being configured so that the cooperation with the holding feature maintains the first gear assembly at a predetermined position during the mounting of the second gear assembly. A common shaft is mounted connecting the first gear and two second gears to the body so that each of the second gears mesh with the second gear assembly. A pin of two third gears is mounted to the body so that each of the third gears mesh with a respective one of the second gears of the first gear assembly.

Printhead capping mechanism having multiple gear assemblies and method of assembling same

A printer is provided which has a support frame having a first slot, a plate having a tab configured to slidably engage with the first slot in order to mount the plate to the support frame and a bearing positioned in a hole of the plate, and at least one elongate roller supported at a longitudinal first end by the bearing and at a longitudinal second end by the support frame. The bearing is configured to allow pivotal movement of the roller about the second end during the sliding engagement of the plate and support frame and to allow, in use, rotation of the roller for transport of print media within the printer.

Printer having easily mountable media transport arrangement

A mobile device is disclosed. The mobile device includes an inkjet printhead, a print media feed path for directing print media past the printhead in a feed direction during printing, and a capping mechanism including a capper moveable between a capping position in which the capper is urged into a capping relationship with the printhead, and an uncapped position in which the capper is displaced away from the printhead thereby exposing the printhead to print media in the print media feed path. The capper is moved between the capped and uncapped position by engagement with an edge of the print media as the print media moves through the feed path.

Mobile telecommunications device with printhead and a printhead capper

A mobile device is provided which has first and second body sections movable relative to each other between operative and inoperative configurations of the device, a printhead for printing onto a media substrate, and a media feed path for feeding the media substrate past the printhead. The media feed path extends from the first body section into the second body section when in the operative configuration.

Mobile device with printhead and media path in two relatively moveable sections

A print cartridge for an inkjet printer with a media drive assembly, the cartridge comprising: a drive shaft for feeding a media substrate past a printhead, the drive shaft positioned such that it engages the media drive assembly upon installation of the cartridge; wherein during use, the drive assembly transfer torque to the drive shaft by contact friction.

Print cartridge with friction driven media feed shaft

A method of picking sheet media in a printer is provided. In the method a pick-up roller is caused to contact with sheet media of a supply of sheet media, the pick-up roller is rotatably driven with a motor via a gear assembly so that the pick-up roller picks up the sheet media and delivers the picked sheet media to a sheet media transport mechanism for transporting sheet media past a printhead, and substantially at the point of delivery of a leading edge of the picked sheet media to the sheet media transport mechanism by the pick-up roller, a first gear of the gear assembly is disengaged from a second gear of the gear assembly to cease the driving of the pick-up roller.

Growing community of inventors

Balmain, Australia

Gregory Michael Tow