Abstract: A method of obtaining an MP3 file, the method including providing a plurality of separately identifiable MP3 files; associating each of the plurality with one or more identities; providing at least one substrate visually identifying at least one MP3 file, the file also being identified by an encoded identity on the substrate; selecting at least one of the at least one MP3 files of the at least one substrate with a selection device, the selection device sensing the coded data corresponding to the file; determining the identity associated with the coded data of the selected MP3 file; and downloading the audio data identified to the selection device.

Abstract: The present invention relates to a method of printing using dots of ink discharged from nozzles to form the image. It is desirable to prevent printing to occur if there is insufficient ink in the printer cartridge to complete the page. Before each page is printed the recorded amount of ink remaining in the printer cartridge is compared with the amount of ink need in the worst-case page to determine if there is sufficient ink to print the page. If there is the page is printed. After the page is printed, the number of dots of ink used to form the image is multiplied by the dot size and the resulting volume of ink used, is subtracted from previously recorded volume of ink to obtain the new volume of ink remaining in the cartridge.

Abstract: A printhead for an ink jet printer includes an array of print chips abutting end-to-end. The adjoining edge portions of the print chips include a zig-zag formation to ensure a proper positional alignment and spacing of the nozzles on one chip with those of the adjacent chip.

Abstract: A region defined in relation to a surface, and a method for defining such a region; coded data being disposed within the region, the coded data being indicative of an identity of the region and of a plurality of points within the region; in one embodiment, the coded data comprising a plurality of tags, each tag being indicative of the region identity and of its own position within the region.

Abstract: A method of producing an ink jet printhead with a plurality of nozzles and one or more heater elements corresponding to each nozzle. Each heater element is configured to heat a bubble forming liquid in the printhead to a temperature above its boiling point to form a gas bubble therein. The generation of the bubble causes the ejection of a drop of an ejectable liquid (such as ink) through the respective corresponding nozzle, to effect printing. Conveniently, a thin nozzle plate is formed in-situ on the wafer substrate. Depositing a nozzle plate by chemical vapor deposition (CVD) allows the nozzle plate to be included in the printhead at the scale of normal silicon wafer production, using processes normally used for semi-conductor manufacture. Standard lithographic equipment used in the modern semiconductor industry provides a high throughput as well as a high degree of accuracy.

Abstract: A network including an optical sensing device, a printer and a registration server: wherein a secret key and a unique public identifier are installed in a non-volatile memory of the optical sensing device and in a database of the registration server, before the optical sensing device is connected to the network; wherein the optical sensing device is adapted to communicate with the registration server via the printer; wherein, the registration server is adapted to authenticate the optical sensing device when the optical sensing device is connected to the network by verifying the optical sensing device's encryption, using the secret key, of a challenge message; and wherein, if the authentication succeeds, the optical sensing device is registered in the database of the registration server.

Abstract: A modular printhead assembly for a digital printer includes an elongate support frame. A plurality of mounting members is positioned on the support frame to extend along the support frame. An adjustment mechanism is positioned on each mounting member to engage the support frame thereby to permit positional adjustment of each mounting member relative to the support frame. A plurality of printhead modules is mounted on respective mounting members, such that operation of the adjustment mechanisms results in displacement of the printhead modules relative to the support frame.

Abstract: An ink supply device comprising a molding of a settable material, the molding being a two-shot molding having a first part of a first material and a second part of a second material, wherein the first part comprises a plurality of collars of a hydrophobic, elastomeric compound which are configured to be sealingly and releasably engageable with respective ink filling formations of a set of filling formations of an ink reservoir, and the second part defines a number of ink chambers, each ink chamber adapted such that in use, the chamber is in fluid communication with a respective ink channel of one ink reservoir via one collar.

Abstract: A method of distributing ink and air to an array of print chips in a printhead assembly. The method includes supplying different inks from respective sources to a longitudinal distribution housing. The housing has a respective duct for each ink that extends longitudinally along the housing. The ink is then transferred from each duct to a laminated ink distribution structure fixed to the distribution housing, so such inks are supplied to the print chips as required. The method also includes supplying air from an air source to an air duct extending longitudinally along the distribution housing. Air is then transferred along the air duct to a space between the print chips and a nozzle guard.

Abstract: A network including an optical sensing device and a registration server: wherein a secret key and a public unique identifier are installed in a non-volatile memory of the optical sensing device and in a database of the registration server, before the optical sensing device is connected to the network; wherein, the registration server is adapted to authenticate the optical sensing device when the optical sensing device is connected to the network by verifying the optical sensing device's encryption, using the secret key, of a challenge message; wherein, if the authentication succeeds, the optical sensing device is registered in the database of the registration server; and wherein the optical sensing device is adapted to capture a sequence of time-stamped positions of the optical sensing device relative to a surface including coded data.

Abstract: A printhead assembly for a wide format inkjet printer includes an elongate support structure that spans a print media feed path. An ink supply assembly is mounted on the support structure and extends a length of the support structure. A plurality of printhead modules is mounted along the support structure, in an end-to-end manner, and in fluid communication with the ink supply assembly. Each printhead module incorporates an elongate printhead chip. The printhead modules are positioned on the support structure so that the printhead chips are capable of carrying out a printing operation on print media passing along the print media feed path. A plurality of print control arrangements is mounted on the support structure.

Abstract: An ink reservoir for supplying ink to an elongate printhead that includes at least one printhead chip, the ink reservoir defining a plurality of channels and having a plurality of sets of filling formations, each filling formation of each set being in fluid communication with a respective channel; wherein each filling formation is adapted such that in use the formation sealingly and releasably engages a hydrophobic, elastomeric collar on an ink supply device such that one ink chamber of the ink supply device is in communication with a respective ink channel of the reservoir via one collar.

Abstract: An interface system for enabling a user to instruct a computer system to perform an operation via an interface surface including an interface, the interface including visibly printed graphical information and substantially invisible coded data printed in infra-red ink, the coded data comprising a plurality of substantially undifferentiated marks positioned relative to a predetermined pattern, wherein each mark has a minimum radius and a maximum radius and wherein the length of a mark's minimum radius is greater than 40% of the length of that mark's maximum radius; and a sensing device which, when placed by the user into an operative position relative to the interface surface to designate at least some of the graphical information, senses at least some of the coded data and generates indicating data indicative of the operation using the sensed coded data; the computer system being configured to: receive the indicating data from the sensing device; and perform the operation indicated by the indicating data; whe

Abstract: A network including an optical sensing device and a registration server, wherein a secret key and a unique public identifier are installed in a non-volatile memory of the optical sensing device and in a database of the registration server, before the optical sensing device is connected to the network; wherein, the registration server is adapted to authenticate the optical sensing device when the optical sensing device is connected to the network by verifying the optical sensing device's encryption, using the secret key, of a challenge message; wherein, if the authentication succeeds, the optical sensing device is registered in the database of the registration server.

Abstract: A network including an optical sensing device, and a registration server, wherein a secret key and a unique public identifier are installed in the optical sensing device and in a database of the registration server; wherein the optical sensing device is adapted to communicate with the registration server; wherein, the registration server is adapted to authenticate the optical sensing device when the optical sensing device is connected to the network by verifying the optical sensing device's encryption, using the secret key, of a challenge message; wherein, if the authentication succeeds, the optical sensing device is registered in the database of the registration server; wherein the optical sensing device is adapted to capture a sequence of time-stamped positions of the optical sensing device relative to a surface including coded data.

Abstract: A page binding device for binding pages 11 from a printer. The device having a support tray 18 for receiving and stacking printed pages 11 to form a bound document, and an adhesive applicator 16 for applying a two part adhesive to the printed pages. The two part adhesive has a first part and a second part, wherein the first part and the second part must contact eachother to form an adhesive bond. The adhesive applicator 16 applies the first part of the adhesive to one side of the printed pages and the second part to the opposite side of the page 11. The printed pages 11 are stacked in the support tray 18 such that the first part of the adhesive on one page 11 contacts the second part of the adhesive on the adjacent page in the adjacent page in the stack. Using a two part adhesive allows the adhesive applicator to be easily incorporated into a duplexed printhead assembly 13. As each side of the duplexed printhead 13 would only eject one part of the two part adhesive, the nozzle are far less prone to clogging.

Abstract: A micro-electromechanical fluid ejection device includes a substrate that incorporates drive circuitry. Nozzle chamber walls and a roof are positioned on the substrate to define a nozzle chamber with the roof defining a fluid ejection port in fluid communication with the nozzle chamber. A fluid-ejecting member is operatively positioned with respect to the nozzle chamber. The fluid-ejecting member is displaceable with respect to the substrate to eject fluid from the fluid ejection port. An actuator is connected to the fluid-ejecting member and to the drive circuitry. The actuator is displaceable upon receipt of an electrical signal from the drive circuitry to displace the fluid-ejecting member and thus eject fluid from the fluid ejection port. A covering formation is positioned on the substrate so that the substrate and the covering formation define an air chamber, the actuator being positioned within the air chamber.

Abstract: A cartridge for a digital printer adapted to print information onto a media substrate in a form that can be read by the human eye and a form that is invisible to the human eye but readable to an optical reader device. The cartridge includes a housing defining a number of storage areas wherein at least one of the storage areas contains colorant for printing information that is visible to the human eye and at least one of the other storage areas contains colorant for printing information in a form that is invisible to the human eye but readable by the optical reader device. The colorant for printing information in a form that is invisible to the human eye but readable by the optical reader device is infrared absorbing ink.

Abstract: An integrated circuit carrier is claimed comprising at least one receiving zone for an integrated circuit. A plurality of island-defining portions, having electrical terminals, is arranged about each of the receiving zones. Rigidity-reducing arrangements are disposed between neighbouring island-defining portions.

Abstract: The present invention provides novel molecular structures, which are suitable for use as electrical devices. In one example, the molecular structure comprises a central nanotube of a zigzag type (9) interconnected between two nanotubes of an armchair type (6,8).