Abstract: A printer is provided having a sheet media transport mechanism, a pick-up roller arranged to be rotated so as to contact and pick-up sheet media from a sheet media supply, and a gear assembly for communicating a driving force of a motor to the pick-up roller to rotate the pick-up roller. A first gear of the gear assembly is directly coupled with a second gear of the gear assembly which is concentric with the pick-up roller. The first gear is configured to disengage from the second gear substantially at the point of delivery of a leading edge of the picked sheet media to the sheet media transport mechanism so as to cease communication of the driving force of the motor to the pick-up roller.

Abstract: Provided is a mobile telephone which includes an internal printhead, an ink cartridge and an optical sensing arrangement. The internal inkjet printhead arrangement is fed with print media via internal and external pathways defined by a body of the telephone. The ink cartridge supplies ink to the printhead. The optical sensing arrangement enables the telephone to decode tags of coded data printed on such media fed through the internal and external pathways. The sensing arrangement includes a beam splitter configured to deflect incoming light onto an image sensor of the telephone, a first infrared LED operatively directing light onto media present in the external pathway, and a filter and lens arrangement configured to receive and direct light reflected from the external media onto the beam splitter.

Abstract: A method of assembling a gear arrangement for a capper of an inkjet printer, the method comprising the steps of: mounting a first gear assembly 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 mounting a second gear assembly 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, wherein in the step of mounting the second gear assembly 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 assembl

Abstract: A printhead assembly with a printhead and a shut off (138) valve that has a valve body (200) defining an ink inlet (202) for connection to an ink supply, an ink outlet (67) connected to the printhead IC. A diaphragm (212) is biased into sealing engagement with the valve seat (216) to provide a fluid seal between the ink inlet and the ink outlet. An actuator (204) 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.

Abstract: 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 for engaging the stack and biasing the top most sheet against the top sheet engaging member, the stack engaging structure hingedly connected to the chassis at a hinge axis; a friction surface extending from the stack engaging structure, the friction surface extending in a curvature parallel to a locus of the stack engaging structure about the hinge axis; a lock mechanism having a lock arm hingedly connected to the chassis at the hinge axis, the lock mechanism further having a biased contact foot for engaging the friction surface to retard a movement of the stack engaging structure about the hinge axis; and an actuator for engaging and disengaging the contact foot from the friction surface.

Abstract: A mobile device that as (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.

Abstract: A method of assembling a media transport arrangement of a printer is provided. The method includes positioning a roller so as to be supported at a first end by a support frame, positioning a ring bearing of a fixing plate about a second end of the roller, the fixing plate being separate from the support frame, and slidably engaging the fixing plate with the support frame so as to fix the fixing plate and the roller to the support frame. During the sliding engagement, the roller pivots about the first end due to the configuration of the ring bearing.

Abstract: A printer comprising: a sheet media transport mechanism for transporting sheet media past a printhead; a pick-up roller arranged to be rotated so as to contact and pick-up sheet media from a supply of sheet media and deliver the picked sheet media to the sheet media transport mechanism; and a gear assembly for communicating a driving force of a motor to the pick-up roller so as to rotate the pick-up roller, wherein a first gear of the gear assembly is arranged to disengage from a second gear of the gear assembly substantially at the point of delivery of a leading edge of the picked sheet media to the sheet media transport mechanism so as to cease communication of the driving force of the motor to the pick-up roller.

Abstract: A mobile device including: a printer for printing onto a print medium; and a stylus having a printhead tip for allowing a user to use the mobile device as a writing or drawing device; the stylus and the printer sharing at least one common ink reservoir.

Abstract: A printhead assembly with a printhead integrated circuit (IC) and a shut off (138) valve that has a valve body (200) defining an ink inlet (202) for connection to an ink supply, an ink outlet (67) connected to the printhead IC. A moveable valve member (212) is biased into sealing engagement with the valve seat (216) to provide a fluid seal between the ink inlet and the ink outlet. An actuator (204) for unsealing the valve member from the valve seat upon energizing and re-sealing the valve member to the valve seat when de-energized. The valve protects the ink in the ink supply from contaminants that can migrate up the ink line during shut down periods. The valve member is constantly biased to a closed position and so seals the ink supply from the printhead IC 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.

Abstract: A mobile device including: (a) an inkjet printhead; (b) a print media feed path for directing print media past the printhead in a feed direction during printing; (c) 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 printhead is able to print onto the print media, wherein in the uncapped position the capper is displaced away from the printhead; (d) a locking mechanism configured to hold the capper in the uncapped position until after a trailing edge of the media is clear of the printhead.

Abstract: A print cartridge for a mobile telecommunications device, the cartridge comprising: a drive shaft with a media engagement surface for feeding a media substrate along a feed path; and, a media guide adjacent the drive shaft for biasing the media substrate against the media engagement surface.

Abstract: A method of assembling a print media transport arrangement of a printer, the method comprising the steps of: providing a support frame for at least one elongate roller; positioning the roller so as to be supported at its longitudinal first and second ends by the support frame; positioning a bearing of a fixing plate about the first end of the roller, the bearing being configured to allow rotation of the roller, the rotation, in use, providing transport of print media within the printer; and slidably engaging the fixing plate with the support frame so as to fix the roller thereto, wherein, during the sliding engagement, the elongate roller pivots about the second end due to the configuration of the bearing.

Abstract: 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 for engaging the stack and biasing the top most sheet against the top sheet engaging member, the stack engaging structure hingedly connected to the chassis at a hinge axis; a friction surface extending from the stack engaging structure, the friction surface extending in a curvature parallel to a locus of the stack engaging structure about the hinge axis; a lock mechanism having a lock arm hingedly connected to the chassis at the hinge axis, the lock mechanism further having a biased contact foot for engaging the friction surface to retard a movement of the stack engaging structure about the hinge axis; and an actuator for engaging and disengaging the contact foot from the friction surface.

Abstract: An inkjet printer comprising: a body; a first gear assembly mounted to the body 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 body 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, wherein 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 body, 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.

Abstract: 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.

Abstract: 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.

Abstract: A sheet feed mechanism for a device such as a printer, with a chassis 2 configured to support a stack of sheets 4. A top sheet engaging member 6 for engaging the top-most sheet 40 of the stack and moving it relative to the remainder of the stack 4. A stack engaging structure 8 for engaging the stack 4 and biasing its top sheet 40 against the top sheet engaging member 6. The stack engaging structure 8 having a friction surface 18 extending parallel to the stack engaging structure's direction of travel. A lock mechanism 12 mounted to the chassis 2 for limited relative movement thereto, the lock mechanism 12 having a biased contact foot 32 for engaging the friction surface 18 to secure the stack engaging structure 8 to the lock mechanism 12 for movement therewith.

Abstract: A mobile device including: an input interface for user control of the device; a battery for powering the device; a printhead for printing onto a media substrate; a media cartridge for storing a quantity of the media substrate; and, a media feed path for feeding the media substrate past the printhead; wherein, the battery is positioned between the media cartridge and the input interface.

Abstract: A method of assembling a capping mechanism of an inkjet printer, the method comprising the steps of: providing a support frame for at least one elongate shaft; positioning the shaft so as to be supported at its longitudinal first and second ends by the support frame; positioning a bearing of a fixing plate about the first end of the shaft, the bearing being configured to allow rotation of the shaft, the rotation providing transport of a capper out of, and into, a capping position on a pagewidth printhead; and slidably engaging the fixing plate with the support frame so as to fix the shaft thereto, wherein, during the sliding engagement, the elongate shaft pivots about the second end due to the configuration of the bearing.