Abstract: A sheet detection device includes: a magnetic sensing element disposed on a sheet guide, wherein the sheet guide brings the magnetic sensing element to move to a first position or a second position; a first magnetic element disposed on a sheet tray corresponding to the first position; a second magnetic element disposed on the sheet tray corresponding to the second position and in spaced with the first magnetic element; a processing element electrically connected with the magnetic sensing element. When the magnetic sensing element outputs a first voltage signal, the processing element determines the sheet guide is located at the first position according to the first voltage signal. When the magnetic sensing element outputs a second voltage signal, the processing element determines the sheet guide is located at the second position according to the second voltage signal. The first voltage signal is different from the second voltage signal.

Abstract: A method of displaying a rear-view image and a digital dashboard using the method are provided. The method includes: receiving a rear-view image; and displaying the rear-view image on a default area of a display in response to receiving a signal associated with a direction indicator light, wherein the default area corresponds to the direction indicator light.

Abstract: An automatic document feeding device having a main body, a stopping assembly, an actuating assembly and a controller. The main body has a sheet conveying channel of a curvature shape. A sheet feeding roller assembly and a sheet conveying roller assembly are arranged on the sheet conveying channel. The stopping assembly is arranged between the sheet feeding roller assembly and the sheet conveying roller assembly. The stopping assembly is capable of being located in or out of the sheet conveying channel. A buffering channel is located between the stopping assembly and the sheet feeding roller assembly. The controller is electrically connected with the actuating assembly and the sheet feeding roller assembly. The controller controls the actuating assembly to hold the stopping assembly in the sheet conveying channel to block the sheet conveying channel in a predetermined period, and then controls the actuating assembly to stop holding the stopping assembly.

Abstract: A detecting method of a sheet detection device includes: generating, by a first magnetic sensing element, a first voltage signal corresponding to a magnetic element; generating, by a second magnetic sensing element, a second voltage signal corresponding to the magnetic element; determining, by a processing element, a first relative position of the magnetic element relative to the first magnetic sensing element according to the first voltage signal; determining, by the processing element, a second relative position of the magnetic element relative to the second magnetic sensing element according to the second voltage signal; determining, by the processing element, a stopping position of the magnetic element according to the first relative position and the second relative position; determining, by the processing element, a paper size of a paper abutted by a paper guide according to the stopping position. A sheet detection device is also disclosed.

Abstract: This disclosure is directed to an automatic sheet feeding device having a flipping mechanism which is used for a sheet. The automatic sheet feeding device has a sheet outputting tray, a sheet outputting channel, the flipping mechanism and a switching guide mechanism. The sheet outputting channel is disposed corresponding to the sheet outputting tray. The flipping mechanism is arranged between the sheet outputting channel and the sheet outputting tray. The switching guide mechanism is arranged between the sheet outputting channel and the flipping mechanism, and the switching guide mechanism is used for guiding the sheet to be conveyed to the sheet outputting tray from the sheet outputting channel or conveyed to the sheet outputting tray from the flipping mechanism. Therefore, an efficiency of duplex scanning of the automatic sheet feeding device may be improved.

Abstract: An automatic power-off circuit automatically disconnects a path between a battery and a load after the battery supplying power to the load for a specific time period. The automatic power-off circuit includes a first switch, a first capacitor, a first reverse circuit, a timing circuit, and a logic circuit. The first reverse circuit provides a first signal reversed to a potential change based on the potential change of the first capacitor. The timing circuit provides a second signal with the first potential to the logic circuit based on the first signal with the first potential, and adjusts the second signal with the second potential after the specific time period. The logic circuit turns on the first switch based on the second signal with the first potential, and turns off the first switch based on the second signal with the second potential.

Abstract: A sheet detection device includes a sheet guiding component, a conductor element and a sensing element. The sheet guiding component is disposed in a sheet tray and movable between an initial position and a threshold position along a first direction. The conductor element is disposed in the sheet tray, and is conductor continuously extended and disposed correspondingly between the initial position and the threshold position. The sensing element is disposed on and moved with the sheet guiding component, and is disposed in spaced with the conductor element and overlaps with at least a part of the conductor element. An overlapping portion between the conductor element and the sensing element correspondingly generates a capacitance value, and the capacitance value changes gradually corresponding to the movement of the sensing element along the first direction.

Abstract: A dual-axle linkage detection structure includes a first object, a second object, a sensor body, and a shielding element. The first object is movably connected to a base. The second object is movably connected to the first object. The sensor body is disposed on the first object and includes detecting positions. The shielding element includes a shielding part. When the second object covers the first object and the first object covers the base, the shielding part moves into the detecting position. When the second object moves away from the first object, or when the first object moves away from the base and drives the shielding element to rotate, the shielding part moves out of the detecting position.

Abstract: A method of displaying a rear-view image and a mobile device using the method are provided. The method includes: receiving the rear-view image; displaying a virtual dashboard through a display; and displaying the rear-view image on a default area of the virtual dashboard in response to receiving a signal associated with a direction indicator light, wherein the default area corresponds to the direction indicator light.

Abstract: An ink circulation system, including an ink cartridge, an ink tank, an ink pump, first, second, and third valves, a print head, a heating assembly, and a positive-negative pressure assembly, is provided. The ink cartridge has an output pipeline and an ink cartridge valve. The ink tank is disposed on one side of the ink cartridge and connected to the output pipeline. The ink pump is connected to the output pipeline and the ink tank through an ink pipeline. The first valve is connected to the ink tank through a first pipeline. The second valve is disposed on the output pipeline. The third valve is connected to the output pipeline and the ink pipeline through a return pipeline. The print head is connected to the ink tank and the return pipeline. The heating assembly is disposed in the ink tank. The positive-negative pressure assembly is connected to the first pipeline.

Abstract: A method of using a mobile device as a dashboard of a motorcycle and a motorcycle using the method are provided. The motorcycle includes a body, an electronic control unit (ECU), a protocol converter, and a transceiver. The body includes a steering wheel, and the steering wheel includes a placement space for disposing a mobile device. The ECU is installed in the body and outputs a first signal via a first protocol. The protocol converter is installed in the body and coupled to the ECU. The protocol converter converts the first signal from the first protocol to a second protocol so as to generate a second signal, and the second protocol is different from the first protocol. The transceiver is installed in the body and coupled to the protocol converter. The transceiver transmits the second signal to the mobile device in the placement space.

Abstract: A method of displaying a rear-view image and a mobile device using the method are provided. The method includes: receiving the rear-view image; displaying a virtual dashboard through a display; and displaying the rear-view image on a default area of the virtual dashboard in response to receiving a signal associated with a direction indicator light, wherein the default area corresponds to the direction indicator light.

Abstract: A method of displaying a rear-view image and a digital dashboard using the method are provided. The method includes: receiving a rear-view image; and displaying the rear-view image on a default area of a display in response to receiving a signal associated with a direction indicator light, wherein the default area corresponds to the direction indicator light.

Abstract: An ink circulation system, including an ink cartridge, an ink tank, an ink pump, first, second, and third valves, a print head, a heating assembly, and a positive-negative pressure assembly, is provided. The ink cartridge has an output pipeline and an ink cartridge valve. The ink tank is disposed on one side of the ink cartridge and connected to the output pipeline. The ink pump is connected to the output pipeline and the ink tank through an ink pipeline. The first valve is connected to the ink tank through a first pipeline. The second valve is disposed on the output pipeline. The third valve is connected to the output pipeline and the ink pipeline through a return pipeline. The print head is connected to the ink tank and the return pipeline. The heating assembly is disposed in the ink tank. The positive-negative pressure assembly is connected to the first pipeline.

Abstract: A detection method for a liquid level of a storage tank is provided. The detection method determines that an optical sensor is for a liquid level detection purpose when a sensing value to a tank object is consistent with a first threshold condition. The detection method further determines the optical sensor as valid on liquid level detection when sensing values respectively corresponding to statuses of print material and non-print-material are consistent with a second threshold condition. During printing, the detection method starts/stops pouring print material into a storage tank when the sensing value of the optical sensor is consistent with a third threshold condition correspondingly.

Abstract: A feeding device includes a base, a storage barrel, a hopper, a blocking door and a ratchet turning wheel. The storage barrel is disposed above the base, and a collecting passage is extended from the bottom of the storage barrel. A discharge port is disposed on the collecting passage. The hopper is accommodated in the collecting passage. The blocking door shields the discharge port. The ratchet turning wheel is installed on the base and disposed below the hopper. The ratchet turning wheel includes a wheel and ratchet teeth arranged annularly on the periphery of the wheel. An outer periphery of the ratchet teeth abuts against the hopper to push the hopper to move up or down. The wheel is extended with a lever to open the blocking door. Therefore, the feed may be filled in the collecting channel, and the feeding device has the effect of quantitative feeding.

Abstract: This disclosure is related to a duplex scanning device. The automatic document feeder includes a paper feeder body, a paper inlet and a paper outlet. The paper cassette includes an upper paper tray and a lower paper tray adjacent to the paper inlet and the paper outlet. The cassette power module includes a motor set and a transmission part. The transmission part drives the paper cassette to move on one side of the automatic document feeder to control the lower paper tray to connect with the paper inlet or the paper outlet. Therefore, the double-sided scanning of the document is completed by two-pass duplex scanning.

Abstract: A light-curing 3D printer includes a main-tank, a printing platform, a lighting unit, a liquid material contained in the main-tank, an isolation fluid contained in the main-tank and floating upon the liquid material, a membrane arranged upon the isolation fluid, and an auxiliary mechanism. The 3D printer controls the lighting unit to emit light toward the liquid material according to slicing data of one cured-layer of a 3D model for forming a 3D object. The 3D printer then controls the printing platform to lower and activates the auxiliary mechanism to keep varying the status of the isolation fluid. Next, the 3D printer determines whether the 3D model is completed, and controls the lighting unit to emit light according to slicing data of a next cured-layer if the 3D model is not yet completed.

Abstract: A 3D printing head having a carrier, a pair of nozzle assemblies, a swing arm and a driving mechanism is provided. The nozzle assemblies are arranged on the carrier. Each nozzle assembly has a nozzle and a reset elastic member. Each nozzle is connected to the carrier and up-down movable relative to the carrier. The reset elastic members are connected between the carrier and the respective corresponding nozzles. The swing arm is pivoted on the carrier and able to swing one end thereof between the nozzles to selectively press one of the nozzles down. The driving mechanism is connected with the swing arm to rotate the swing arm. The swing arm can be rotated by the driving mechanism to press the operated nozzle down for printing, and a height difference between the nozzles is thereby formed to prevent the product from being scratched by the idle nozzle when printing.

Abstract: The present disclosure provides a feed module, which is applicable to an electronic device, for example, a multi-function product/printer/peripheral or printer and the like. The feed module comprises a carrier tray, a clamping piece, a first sensor and a control unit. A document is suitable for being placed on the carrier tray, and is driven by the feed module to be transferred into the multi-function product/printer/peripheral or printer. The clamping piece is movably assembled on the carrier tray. The first sensor senses the position of the clamping piece on the carrier tray. The control unit is electrically connected with the first sensor. After the document is placed on the carrier tray and clamped by the clamping piece, the control unit determines the width of the document by the first sensor.