Abstract: A printing head module includes a driving gear, a bi-directional motor, a first feeding module and a second feeding module. The bi-directional motor selectively drives the driving gear to rotate along a first direction and a second direction. The first feeding module disposed at a first side of the driving gear includes a first unidirectional gear and a first idler gear. The driving gear is engaged with the first unidirectional gear, and the first unidirectional gear unidirectionally drives the first idler gear to rotate. The second feeding module is disposed at a second side of the driving gear opposite to the first side, and includes a second unidirectional gear and a second idler gear, the driving gear is engaged with the second unidirectional gear to drive the second unidirectional gear to rotate, and the second unidirectional gear unidirectionally drive the second idler gear to rotate.

Abstract: A printing head module includes a driving gear, a bi-directional motor, a first feeding module and a second feeding module. The bi-directional motor selectively drives the driving gear to rotate along a first direction and a second direction. The first feeding module disposed at a first side of the driving gear includes a first unidirectional gear and a first idler gear. The driving gear is engaged with the first unidirectional gear, and the first unidirectional gear unidirectionally drives the first idler gear to rotate. The second feeding module is disposed at a second side of the driving gear opposite to the first side, and includes a second unidirectional gear and a second idler gear, the driving gear is engaged with the second unidirectional gear to drive the second unidirectional gear to rotate, and the second unidirectional gear unidirectionally drive the second idler gear to rotate.

Abstract: A three-dimensional printing apparatus suitable for fabricating a three-dimensional object from a model of the three-dimensional object is provided. The three-dimensional printing apparatus includes a rotary base and a printing head. The rotary base has a carrying surface and is configured to rotate about a first axis and shift along the first axis. The printing head is disposed above the rotary base and configured to shift along a second axis perpendicular to the first axis for dispensing successive layers of building material onto the carrying surface. The successive layers of building material form the three-dimensional object. The shape of each layer of the building material is decided by the rotation of the rotary base about the first axis, the shifting of the rotary base along the first axis and the shifting of the printing head along the second axis. A printing method for the three-dimensional printing apparatus is also provided.

Abstract: An automatic document feeder and a media record equipment using the same are provided. The automatic document feeder includes a frame, a cover and a gear chain. An end of the cover pivoted to the frame has a cam. The gear chain disposed in the frame has multiple driven gears and a rotating unit. The driven gears engaged with each other rotate about a first axial direction. The rotating unit having a first rock arm contacting the cam and a second rock arm with one of the driven gears disposed thereon is capable of rotating about the first axial direction. The cam pushes the first rock arm to drive the rotating unit to rotate about the first axial direction, and then an engagement between the driven gear on the second rock arm is released by departing from another driven gear engaged therewith when the cover opens relative to the frame.

Abstract: An automatic document feeder and a media record equipment using the same are provided. The automatic document feeder includes a frame, a cover and a gear chain. An end of the cover pivoted to the frame has a cam. The gear chain disposed in the frame has multiple driven gears and a rotating unit. The driven gears engaged with each other rotate about a first axial direction. The rotating unit having a first rock arm contacting the cam and a second rock arm with one of the driven gears disposed thereon is capable of rotating about the first axial direction. The cam pushes the first rock arm to drive the rotating unit to rotate about the first axial direction, and then an engagement between the driven gear on the second rock arm is released by departing from another driven gear engaged therewith when the cover opens relative to the frame.

Abstract: A gear clutch assembly and an electronic device are provided. The gear clutch assembly comprises a pivot, a driving gear engaged with the pivot and adapted to rotate along the pivot, and a driven gear disposed on the driving gear. The driving gear comprises a first surface, a ratchet integrally formed with the driving gear comprising a plurality of teeth disposed on the first surface. The driving gear comprises a second surface facing the first surface, and a pawl integrally formed with the driven gear on the second surface. When the driving gear rotates in a driving direction, one of the teeth is engaged with the pawl and drives the driven gear to rotates with the driving gear. When the driving gear rotates in an opposite direction, every tooth pushes up and slides under the pawl so the driven gear does not rotate along with the driving gear.

Abstract: A gear clutch assembly and an electronic device are provided. The gear clutch assembly comprises a pivot, a driving gear engaged with the pivot and adapted to rotate along the pivot, and a driven gear disposed on the driving gear. The driving gear comprises a first surface, a ratchet integrally formed with the driving gear comprising a plurality of teeth disposed on the first surface. The driving gear comprises a second surface facing the first surface, and a pawl integrally formed with the driven gear on the second surface. When the driving gear rotates in a driving direction, one of the teeth is engaged with the pawl and drives the driven gear to rotates with the driving gear. When the driving gear rotates in an opposite direction, every tooth pushes up and slides under the pawl so the driven gear does not rotate along with the driving gear.

Abstract: A depinching mechanism including a frame, a star wheel assembly, a limiter arm, a rocker arm and a sensor is provided in present invention. Through the depinching mechanism the star wheel assembly is lifted from the first position to the second position when paper jam occurs, and thus depinched the media the user can clear the paper jam. And after that the star wheel assembly is lowered from the second position to the first position. The star wheel assembly remains in the first position in the normal printing process. Since when paper jam occurs the star wheel assembly is lifted by the depinching mechanism, the user can easily and conveniently remove the jammed paper. And thus, the depinching mechanism can facilitate the user to remove jammed paper when paper jam occurs in printer. Thus, the depinching mechanism can be used in printers to solve the paper jamming problems.

Abstract: A depinching mechanism including a frame, a star wheel assembly, a transmitting device and a sensor is provided in present invention. Through the transmitting device rotating reversely, the star wheel assembly is lifted to the second position when paper jam occurs, thus depinched the media so that user can clear the paper jam. After that the star wheel assembly is lowered to the first position again. The star wheel assembly remains in the first position in normal printing process. Using a one-way clutch and a cam with an outer predetermined profile, the transmitting device rotates forwardly without transmitting any torque during normal printing process, and rotates inversely with transmitting a torque to lift the star wheel assembly up and lower the star wheel assembly down when paper jam occurs. Thus, the depinching mechanism can be used in printers to auto fix the paper jamming problems.

Abstract: A depinching mechanism including a frame, a star wheel assembly, a limiter arm, a rocker arm and a sensor is provided in present invention. Through the depinching mechanism the star wheel assembly is lifted from the first position to the second position when paper jam occurs, and thus depinched the media the user can clear the paper jam. And after that the star wheel assembly is lowered from the second position to the first position. The star wheel assembly remains in the first position in the normal printing process. Since when paper jam occurs the star wheel assembly is lifted by the depinching mechanism, the user can easily and conveniently remove the jammed paper. And thus, the depinching mechanism can facilitate the user to remove jammed paper when paper jam occurs in printer. Thus, the depinching mechanism can be used in printers to solve the paper jamming problems.

Abstract: A depinching mechanism including a frame, a star wheel assembly, a transmitting device and a sensor is provided in present invention. Through the transmitting device rotating reversely, the star wheel assembly is lifted to the second position when paper jam occurs, thus depinched the media so that user can clear the paper jam. After that the star wheel assembly is lowered to the first position again. The star wheel assembly remains in the first position in normal printing process. Using a one-way clutch and a cam with an outer predetermined profile, the transmitting device rotates forwardly without transmitting any torque during normal printing process, and rotates inversely with transmitting a torque to lift the star wheel assembly up and lower the star wheel assembly down when paper jam occurs. Thus, the depinching mechanism can be used in printers to auto fix the paper jamming problems.

Abstract: A printer includes a toner cartridge coupling section. A toner agitation member is located adjacent the toner cartridge coupling section and is operable to engage a surface of a toner cartridge when the toner cartridge is located in the toner cartridge coupling section. An actuator is operable to actuate the toner agitation member.

Abstract: Systems and methods for determining the volume of imaging medium in a cartridge are disclosed. An imaging medium may include a movable housing portion and a device coupled to the movable housing portion. The movable housing portion may include a volume of imaging medium and may be configured to move in response to changes in the volume of imaging medium in the movable housing portion. The device may be configured to project a beam of electromagnetic energy onto a location of a beam-receiving photodetector, the beam-receiving location moving in response to movement of the movable housing portion such that the beam-receiving location is based at least on the volume of imaging medium on the movable housing portion.

Abstract: A mono optimized color laser printer. The mono optimized color laser printer includes a provision in which mono toner cartridges may be inserted at each of four toner locations. The mono optimized color laser printer includes a mono optimization module which detects when mono toner cartridges are inserted into the four toner locations and controls printing so that each of the mono toner cartridges prints on about a quarter of a page. Such a mono optimized color laser printer reduces a time taken to transfer toner to the page to about a quarter that of a traditional color printer. Such a printer results in about a four times increase in printing speed for a mono print operation.

Abstract: A printer includes a toner cartridge coupling section. A toner agitation member is located adjacent the toner cartridge coupling section and is operable to engage a surface of a toner cartridge when the toner cartridge is located in the toner cartridge coupling section. An actuator is operable to actuate the toner agitation member.

Abstract: Systems and methods for determining the volume of imaging medium in a cartridge are disclosed. An imaging medium may include a movable housing portion and a device coupled to the movable housing portion. The movable housing portion may include a volume of imaging medium and may be configured to move in response to changes in the volume of imaging medium in the movable housing portion. The device may be configured to project a beam of electromagnetic energy onto a location of a beam-receiving photodetector, the beam-receiving location moving in response to movement of the movable housing portion such that the beam-receiving location is based at least on the volume of imaging medium on the movable housing portion.

Abstract: The invention relates to a service station for an inkjet printer. The service station includes at least one cap for capping a printhead which is mounted on an inkjet carriage of the inkjet printer. The service station also includes at least one wiper arranged to wipe said printhead carried by the inkjet carriage. The wiper is arranged to move towards and away from the printhead in response to movement of the inkjet carriage so as to enable the printhead to be wiped of any residual ink.

Abstract: The invention relates to a service station for an inkjet printer. The service station includes at least one cap for capping an inkjet nozzle which is mounted on an inkjet carriage of the inkjet printer. The service station also includes at least one wiper arranged to wipe said nozzle of the inkjet carriage. The wiper is arranged to move towards and away from the inkjet nozzle in response to movement of the inkjet carriage so as to enable the nozzle to be wiped of any residual ink.