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 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 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 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.

Abstract: The present invention provides a multi-function printer, including a main body, a cover, and a hinge structure. The hinge structure includes a positioning component and a pivoting member. The positioning component is connected to the main body. The pivoting member is connected to the cover and is pivotally connected to the positioning component. The pivoting member is adapted to pivot to a first state so that the cover is closed on the main body and pivot to a second state so that the cover is opened from the main body. The pivoting member includes at least one positioning portion. When the pivoting member pivots to a third state between the first state and the second state, the pivoting member is positioned to the positioning component by the at least one positioning portion.

Abstract: A method for three-dimensional printing is provided. The method includes: determining whether a first bracket is going to collide with a second bracket when a first control command corresponding to a first print head among a plurality of control commands and a second control command corresponding to a second print head among the plurality of control commands are executed simultaneously. If yes, execution of the first control command is suspended to stop a printing operation performed by the first print head, and the second control command is executed so that the second print head performs the printing operation according to the second control command.

Abstract: A heat sink for a 3D printer includes a storage tank, a pipe loop, a pump, a heat dissipation unit, and a release film. The storage tank is configured to contain a printing material. The pipe loop is connected to the storage tank. The pump is connected to the pipe loop and configured to pump the printing material from the storage tank, so that the printing material circulates through the pipe loop. The heat dissipation unit is connected to the pipe loop. The printing material is pumped into the pipe loop, then subjected to heat dissipation by the heat dissipation unit, and re-injected into the storage tank successively. The release film is disposed at a bottom of the storage tank.

Abstract: A 3D print head includes a carrier connected with a horizontal slide rail, a pair of nozzle assemblies disposed on the carrier, a swing arm and a push rod. Each nozzle assembly includes a nozzle and an elastic member, and movably coupled to the carrier and capable of raising and lowering relative to the carrier. Each elastic member is connected between the carrier and the corresponding nozzle to raise the nozzle relative to the carrier. The swing arm is pivoted to the carrier, and one end there of can be moved between the nozzles to push one of the nozzles down. The push rod is extended from the swing arm. While the carrier moving along the horizontal slide rail, the push rod can be pushed to rotate the swing arm to push the print nozzle down, thus the product can be prevented from scratching by another idle nozzle while printing.

Abstract: The present invention provides a multi-function printer, including a main body, a cover, and a hinge structure. The hinge structure includes a positioning component and a pivoting member. The positioning component is connected to the main body. The pivoting member is connected to the cover and is pivotally connected to the positioning component. The pivoting member is adapted to pivot to a first state so that the cover is closed on the main body and pivot to a second state so that the cover is opened from the main body. The pivoting member includes at least one positioning portion. When the pivoting member pivots to a third state between the first state and the second state, the pivoting member is positioned to the positioning component by the at least one positioning portion.

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.

Abstract: The disclosure provides a 3D printing method and a 3D printing apparatus using the same. The 3D printing method includes the following steps: feeding a material using a printing parameter, wherein the printing parameter includes a target temperature and a target feeding rate; adjusting the printing parameter to change the heat energy provided to the printing filament per unit length; determining whether the target feeding rate matches the actual feeding rate according to the adjusted printing parameter to obtain a determination result; obtaining a correspondence relationship between the plurality of target temperatures and the plurality of target feeding rates according to the adjusted printing parameters and the determination results; and setting the printing parameter to print according to the obtained correspondence relationship.

Abstract: A printing module and a 3D printing apparatus including a frame having a printing area and a standby area and a control module are provided. The printing module includes a carriage assembly disposed on the frame and electrically connected to the control module, a first base disposed on the carriage assembly and having a first latch movably disposed along a first axial direction, a fixing frame disposed in the standby area and having a first stopping portion and a second stopping portion arranged along the first axial direction, a second base movably disposed in the standby area along the first axial direction and located between the first stopping portion and the second stopping portion and having a second latch movably disposed along the first axial direction, and a printing head assembly having a first latching portion and a second latching portion disposed along a second axial direction.

Abstract: A 3D printed product post-processing device includes a main body, a lifting mechanism and a vacuum pipeline. An operating chamber is defined in the main body. A cavity and at least one primary recovery opening disposed adjacent to a side of the cavity are defined on a bottom surface of the operating chamber. At least one access hole is arranged on one side of the operating chamber and an operating window is arranged on the operating chamber. A floating powder recovery opening is arranged on top of the other side of the operating chamber. The lifting mechanism is accommodated in the cavity. The vacuum pipeline is respectively connected to the primary recovery opening and the floating powder recovery opening. The floating powders are removed through the floating powder recovery opening to maintain the operating window clean. Therefore, a post-processing operation can be facilitated.