Abstract: A flyback power converter includes a power transformer, a first lossless voltage conversion circuit, a first low-dropout linear regulator and a secondary side power supply circuit. The first low-dropout linear regulator (LDO) generates a first operation voltage as power supply for being supplied to a sub-operation circuit. The secondary side power supply circuit includes a second lossless voltage conversion circuit and a second LDO. The second LDO generates a second operation voltage. The first operation voltage and the second operation voltage are shunted to a common node. When a first lossless conversion voltage is greater than a first threshold voltage, the second LDO is enabled to generate the second operation voltage to replace the first operation voltage as power supply supplied to the sub-operation circuit; wherein the second lossless conversion voltage is lower than the first lossless switching voltage.

Abstract: A flatbed scanning device of a paper feeding scanning equipment includes a device casing and a scanning module. The device casing includes a first glass plate, and a second glass plate spaced apart from the first glass plate and having a bottom surface. The scanning module is disposed in the device casing, and including a module body, a scanning assembly disposed in the module body, and at least one contact assembly disposed on the module body. When the scanning module is in an initial position, the scanning assembly is located below the first glass plate, and the at least one contact assembly abuttingly contacts the bottom surface of the second glass plate.

Abstract: A flatbed scanning device of a paper feeding scanning equipment includes a device casing and a scanning module. The device casing includes a first glass plate, and a second glass plate spaced apart from the first glass plate and having a bottom surface. The scanning module is disposed in the device casing, and including a module body, a scanning assembly disposed in the module body, and at least one contact assembly disposed on the module body. When the scanning module is in an initial position, the scanning assembly is located below the first glass plate, and the at least one contact assembly abuttingly contacts the bottom surface of the second glass plate.

Abstract: An image scanning device includes a bottom wall, a surrounding wall extending upwardly from the bottom wall, a frame connected to the surrounding wall and having a first side plate, and a transparent panel fixed to the frame and having a lateral side supported by an upper part of the first side plate. A contact image sensor module is disposed on the bottom wall transverse to the first side plate, and includes a housing having a first short side wall spaced apart from the first side plate by a first distance less than or equal to 2 mm, and a plurality of sensors, one of which that is closest to the first short side wall is spaced apart from an outer surface of the first short side wall by a second distance less than or equal to 2.5 mm.

Abstract: An image scanning apparatus includes a base, a transparent plate, a guide rod disposed between the base and the transparent plate, an optical sensor module, and a carrier mounted on the guide rod and including a first support bracket to place the optical sensor module thereto and having a first pivot connecting portion, a second support bracket having a second pivot connecting portion connected pivotally to the first pivot connecting portion, and an elastic member disposed between the first and second support brackets and biasing upwardly the first support bracket so as to keep the optical sensor module in constant contact with the transparent plate.

Abstract: An image scanning apparatus includes a base, a transparent plate, a guide rod disposed between the base and the transparent plate, an optical sensor module, and a carrier mounted on the guide rod and including a first support bracket to place the optical sensor module thereto and having a first pivot connecting portion, a second support bracket having a second pivot connecting portion connected pivotally to the first pivot connecting portion, and an elastic member disposed between the first and second support brackets and biasing upwardly the first support bracket so as to keep the optical sensor module in constant contact with the transparent plate.

Abstract: An image scanning device includes a bottom wall, a surrounding wall extending upwardly from the bottom wall, a frame connected to the surrounding wall and having a first side plate, and a transparent panel fixed to the frame and having a lateral side supported by an upper part of the first side plate. A contact image sensor module is disposed on the bottom wall transverse to the first side plate, and includes a housing having a first short side wall spaced apart from the first side plate by a first distance less than or equal to 2 mm, and a plurality of sensors, one of which that is closest to the first short side wall is spaced apart from an outer surface of the first short side wall by a second distance less than or equal to 2.5 mm.

Abstract: A clamping apparatus capable of fixing a roll film is disclosed. The clamping apparatus includes: a carrier comprising a slot; a cover positioned in the slot; and a cannelure formed between the cover and the carrier, for guiding the film inserted from the first film door to a predetermined position. The cover includes: an upper ramp, positioned on one side of the cannelure opening, for guiding the film from the first film door to the cannelure opening, wherein a first edge of the upper ramp is near the cannelure opening, and a second edge of the upper ramp is away from the slot opening and inclines to the first edge of the upper ramp.

Abstract: A method for controlling ON/OFF of LED in a scanner which replaces CCFL with LED as a light source is provided so as to solve the problem of excessively long warm-up time of CCFL in the prior art. Meanwhile, to achieve intermittent heat dissipation, LED is switched ON/OFF according to the frequency of the scanner receiving optical signals.

Abstract: A scanning apparatus for scanning an image of a document includes a housing, a reflecting plate, a light emitting element having a substrate and a plurality of point light sources, and an image sensor. The housing has a slit formed on a top surface thereof. The reflecting plate is disposed in the housing, extends on an edge of the slit, and faces the slit. The substrate is fixed on an edge of the reflecting plate, and the point light sources are fixed on the substrate. Each point light source emits a scanning light to the reflecting plate, and the scanning light is reflected onto the document through the slit. The scanning light is reflected by the document to form an image light that enters the housing through the slit. The image sensor is disposed in the housing for receiving the image light and converting image light into image data.

Abstract: A scanning apparatus with heat dissipating ability includes a housing having an opening formed thereon. A cover having a slit, a heating dissipating portion, and supporting portion connected to the heat dissipating portion covers the opening, wherein the supporting portion extends from an edge of the slit into the housing. A light emitting elements is fixed on the supporting portion, for emitting a scanning light through the slit, and the scanning light is reflected as an image light by a document. The image light is converted to image data by an image scanning module. The heat dissipating portion is made of a thermal conductive material to exchange heat with the air, so that heat generated by the light emitting elements is transferred to the heat dissipating portion and the heat is dissipated to the air, the work temperature of the light emitting elements is controlled at an optimal temperature.

Abstract: A scanning apparatus with heat dissipating ability includes a housing having an opening formed thereon. A cover having a slit, a heating dissipating portion, and supporting portion connected to the heat dissipating portion covers the opening, wherein the supporting portion extends from an edge of the slit into the housing. A light emitting elements is fixed on the supporting portion, for emitting a scanning light through the slit, and the scanning light is reflected as an image light by a document. The image light is converted to image data by an image scanning module. The heat dissipating portion is made of a thermal conductive material to exchange heat with the air, so that heat generated by the light emitting elements is transferred to the heat dissipating portion and the heat is dissipated to the air, the work temperature of the light emitting elements is controlled at an optimal temperature.

Abstract: A scanning apparatus for scanning an image of a document includes a housing, a reflecting plate, a light emitting element having a substrate and a plurality of point light sources, and an image sensor. The housing has a slit formed on a top surface thereof. The reflecting plate is disposed in the housing, extends on an edge of the slit, and faces the slit. The substrate is fixed on an edge of the reflecting plate, and the point light sources are fixed on the substrate. Each point light source emits a scanning light to the reflecting plate, and the scanning light is reflected onto the document through the slit. The scanning light is reflected by the document to form an image light that enters the housing through the slit. The image sensor is disposed in the housing for receiving the image light and converting image light into image data.

Abstract: Scanning apparatuses and related methods capable of locating object to be scanned are disclosed. One of the proposed scanning apparatuses includes: a tray for supporting objects to be scanned, wherein the tray is provided with a machine detectable mechanism; a detecting module for detecting a pattern of the machine detectable mechanism; a control circuit coupled to the detecting module for identifying at least target area on the tray according to the detecting result of the detecting module and for setting scan parameters according to a location of the at least one target area; and a scanning module coupled to the control circuit for scanning the at least one target area according to the scan parameters.

Abstract: A locking apparatus for a movable carry module, comprises a controller using to fix the movable carry module of an electric device. The controller has a movable locking shaft normality stretch in the movable carry module, and applies to fix the movable carry module. The electric device supplies the electric power to the controller when receiving the external electric power, and then the locking shaft departs from the movable carry module, such that the movable carry module can move freely.

Abstract: A sheet-fed image-scanning apparatus for scanning an object on a tray is disclosed and includes a rigid mainframe, a carriage module, a second light source, a transmission module, and a holding module. The rigid mainframe provides a moving route for the tray to be moved into or out from the sheet-fed image-scanning apparatus. The carriage module illuminates the object and senses the light reflected from or penetrated through the object so as to scan the image of the object. The second light source illuminates the object from a position opposite to the carriage module. The transmission module moves the tray into and out from the sheet-fed image-scanning apparatus. The holding module keeps the tray from deviation while the tray is moving within the moving route.

Abstract: A clamping apparatus capable of fixing a roll film is disclosed. The clamping apparatus includes: a carrier comprising a slot; a cover positioned in the slot; and a cannelure formed between the cover and the carrier, for guiding the film inserted from the first film door to a predetermined position. The cover includes: an upper ramp, positioned on one side of the cannelure opening, for guiding the film from the first film door to the cannelure opening, wherein a first edge of the upper ramp is near the cannelure opening, and a second edge of the upper ramp is away from the slot opening and inclines to the first edge of the upper ramp.

Abstract: A clamping apparatus capable of fixing an object is disclosed. The clamping apparatus comprises: a carrier for holding the object; at least one flexible orientation arm with a raised rim positioned on the carrier for orientating the object; and a cover for pressing the raised rim and for clamping the object on the carrier.

Abstract: An image-scanning apparatus is disclosed. The image-scanning apparatus includes a casing, a transparent platform, a scanning module, and a cleaning module. The transparent platform is mounted on the casing and has a first surface and a second surface. The first surface of the transparent platform allows an object to be put thereon. The scanning module is set inside the casing for moving along the second surface of the transparent platform to scan the image of the object. The cleaning module is mounted on the scanning module for moving together with the scanning module along the second surface of the transparent platform to clean the second surface of the transparent platform.

Abstract: An optical scanner includes a first reference white board and a second reference white board perpendicular to two sides of a glass window that holds an object to be scanned. When the optical scanner is powered on, the optical module scans the first reference white board and the second reference white board to obtain data of image quality test and brightness variations in Y direction first, and through software compensation and correction, to obtain a normal digital image data thereby to achieve rapid preview and scanning.