Abstract: A sheet processing apparatus includes a sheet-table unit, a sheet-separating unit disposed at a downstream end of the sheet-table unit along a convey direction of the sheets, a convey unit arranged at a downstream end of sheet-separating unit, a discharge unit located at a downstream end of the convey unit, an sheet processing unit placed between the convey unit and the discharge unit, a speed sensor arranged at an upstream end of the sheet-separating unit for detecting a movement of each sheet for forming a sheet interval between two adjacent sheets, and an edge sensor located between the sheet-separating unit and the sheet processing unit. The edge sensor detects a front edge and a rear edge of each sheet passing therethrough, and sends corresponding control signals to a system controller which delays a predetermined time according to the control signals to control the sheet processing unit to start and stop processing.

Abstract: An optical scanning device with a dustproof function includes a shell defining a first receiving room and a second receiving room communicating with the first receiving room through an open window defined on the shell for scanning light beams passing therethrough. An optical scanning module is mounted in the first receiving room. A glass platform is located on the second receiving room at a position facing the open window for insulating the first receiving room from the outside of the shell. A correcting plate is stuck on the bottom of the glass platform. Such structure of the optical scanning device enables the glass platform to be firstly assembled with the shell in a dustless chamber, which prevents the suspending dust from falling in the first receiving room and attaching to the optical scanning module during the subsequent assembly process and ensures the scanning quality of the optical scanning device.

Abstract: The present invention provides a multiple documents feeding detection mechanism includes an advancing roller applying a driving torque, a retarding roller applying a resisting torque and connected to the advancing roller for transporting pieces of documents, and a detecting means. The friction of a surface of the advancing roller, the friction of a surface of the retarding roller, the driving torque and the resisting torque are tuned to urge the retarding roller either into rotation while one signal document fed into a nip between the advancing roller and the retarding roller, or in standstill while multiple document fed into the nip. The detecting means determines whether the multiple documents feeding is caused by monitoring an action of the retarding roller.

Abstract: A sheet-handling apparatus with a detecting device includes a casing, a plurality of entrance rollers located in the casing, an image collector arranged at one side of the casing, a plurality of middle reflectors and side reflectors. A paper path is formed between the entrance rollers, the paper path includes a middle path and two side paths arranged in the sides of the middle path. The image collector includes an illuminant and an image sensor. The middle reflectors are fixed in the casing and at the other side of the paper path and face to the middle path. The side reflectors are arranged at the side of the middle reflectors. The invention can monitor a paper when it is stuck in the paper path, and the manufacture cost of the invention is reduced.

Abstract: An optical scanning device with a dustproof function includes a shell defining a first receiving room and a second receiving room communicating with the first receiving room through an open window defined on the shell for scanning light beams passing therethrough. An optical scanning module is mounted in the first receiving room. A glass platform is located on the second receiving room at a position facing the open window for insulating the first receiving room from the outside of the shell. A correcting plate is stuck on the bottom of the glass platform. Such structure of the optical scanning device enables the glass platform to be firstly assembled with the shell in a dustless chamber, which prevents the suspending dust from falling in the first receiving room and attaching to the optical scanning module during the subsequent assembly process and ensures the scanning quality of the optical scanning device.

Abstract: An automatic document feeder includes a main body defining a passage for transporting a document. A feeding roller unit includes a feeding driving roller and a feeding idle roller coupling with the feeding driving roller. The feeding driving roller and the feeding idle roller are disposed at opposite sides of the passage. A drawing-out roller unit includes a drawing-out driving roller and a drawing-out idle roller coupling with the drawing-out driving roller. The drawing-out driving roller and the drawing-out idle roller are disposed at opposite sides of the passage. The drawing-out driving roller and the feeding driving roller are at the same side of the passage. And a belt is put around the feeding driving roller and the drawing-out driving roller to mate with the feeding idle roller and the drawing-out idle roller respectively for flatting and conveying the document into and out of the automatic document feeder.

Abstract: A paper feeding device includes a pick roller, a spring element and a separator pad. The pick roller has a roller surface. The spring element is disposed above the pick roller. The spring element has two spring arms extending toward two ends of the pick roller. Free ends of the two spring arms extend to positions outside the two ends of the pick roller and below the roller surface so as to be contactless with the roller surface and are pushed forward and upward by papers and then transfer a press force to the pick roller. A separator pad is arranged in front of the spring element and contacts with the roller surface of the pick roller for cooperating with the pick roller to separate a lowermost one of the papers. Because the spring arms are contactless with the pick roller directly, so the spring arms do not rub the pick roller, which avoids the pick roller being abraded.

Abstract: An optical scanning device with a dustproof function includes a shell defining a first receiving room and a second receiving room communicating with the first receiving room through an open window defined on the shell for scanning light beams passing therethrough. An optical scanning module is mounted in the first receiving room. A glass platform is located on the second receiving room at a position facing the open window for insulating the first receiving room from the outside of the shell. A correcting plate is stuck on the bottom of the glass platform. Such structure of the optical scanning device enables the glass platform to be firstly assembled with the shell in a dustless chamber, which prevents the suspending dust from falling in the first receiving room and attaching to the optical scanning module during the subsequent assembly process and ensures the scanning quality of the optical scanning device.

Abstract: A sheet-handling apparatus with a detecting device includes a casing, a plurality of entrance rollers located in the casing, an image collector arranged at one side of the casing, a plurality of middle reflectors and side reflectors. A paper path is formed between the entrance rollers, the paper path includes a middle path and two side paths arranged in the sides of the middle path. The image collector includes an illuminant and an image sensor. The middle reflectors are fixed in the casing and at the other side of the paper path and face to the middle path. The side reflectors are arranged at the side of the middle reflectors. The invention can monitor a paper when it is stuck in the paper path, and the manufacture cost of the invention is reduced.

Abstract: An automatic document feeder includes a main body defining a passage for transporting a document. A feeding roller unit includes a feeding driving roller and a feeding idle roller coupling with the feeding driving roller. The feeding driving roller and the feeding idle roller are disposed at opposite sides of the passage. A drawing-out roller unit includes a drawing-out driving roller and a drawing-out idle roller coupling with the drawing-out driving roller. The drawing-out driving roller and the drawing-out idle roller are disposed at opposite sides of the passage. The drawing-out driving roller and the feeding driving roller are at the same side of the passage. And a belt is put around the feeding driving roller and the drawing-out driving roller to mate with the feeding idle roller and the drawing-out idle roller respectively for flatting and conveying the document into and out of the automatic document feeder.

Abstract: An paper feeding mechanism has a driving module, a feeding module and a catching module. The feeding module has an active roller, a passive roller connected to the active roller, a shaft connected to the active roller and a rotating gear engaged with the driving module for receiving rotation source from the driving module. The catching module has a pick-up roller with a passive gear, a separating roller with an active gear and a connecting gear interconnecting the active gear and the passive gear. An endless belt interconnects the passive roller of the feeding module and the separating roller of the catching module for transferring the rotation source form the feeding module to the catching module.

Abstract: A paper feeding device comprises an upper frame, a pickup roller assembly connected to the upper frame and a lower frame. The pickup roller assembly includes a roller frame, a separating roller, a pickup roller, and a belt sleeved on both the separating roller and the pickup roller. The separating roller and the pickup roller are connected to the roller frame. The belt impels the separating roller and the pickup roller to press against the roller frame. When the separating roller rotates, the friction created between the separating roller and the roller frame and the friction created between the pickup roller and the roller frame drives the pickup roller assembly to rotate, then the paper is fed into the paper feeding device. The structure of the paper feeding device is simple and the cost is lower than the conventional one, moreover, it is convenient to assemble.

Abstract: A magnification controlling system used in an image forming apparatus has a sensor module for reading a first image and a second image form a document conveyed in a predetermined speed. The first and second images are converted into a base and a reference image by an A/D converter. A processor calculates the shifting offset between the base image and the reference image to produce a reference speed. The processor calculates the predetermined and reference speed to produce a control signal and then sends the control signal to a pulse producing circuit. The pulse producing circuit provides plurality of pulse signals in a predetermined time according to the control signal. The pulse producing circuit sends the pulse signals to a step motor or an image forming module in the image forming apparatus for controlling document conveying speed of the step motor or scanning speed of the image forming module.

Abstract: A scanning module includes a contact image sensor unit and a supporting base. The contact image sensor unit has a top surface, a bottom surface, a front surface and a back surface. The supporting base has a guiding portion, a positioning board mounted on the guiding portion, the two sides of the positioning board extends sideward and bends upward to form an elastic arm respectively, the contact image sensor unit is placed on the positioning board and the elastic arm elastically contacts the bottom surface of the contact image sensor unit. The two sides of the supporting base of the scanning module have an elastic arm respectively, the elastic arm contacts the contact image sensor unit directly and makes sure that the contact image sensor unit contacts the glass tightly.

Abstract: A paper feeding device comprises a supporting frame, a pickup roller assembly, a paper blocking unit, a base and a sensor. The paper blocking unit is placed beside the pickup roller assembly, having a paper blocking element connected to the supporting frame, including a connecting portion, the connecting portion extends downwards to form a paper blocking arm. The sensor is located in the base, having an emitting arm and a receiving arm. The lower portion of the paper blocking arm can be located between the emitting arm and the receiving arm or depart from them for turning off/on the sensor. The paper feeding device decides whether the paper is provided on the base by the turn on/off status of the sensor, so an additional obstructer is avoided. Compared with conventional paper feeding device, the structure of the present invention is simple, and it is convenient to assemble.

Abstract: A paper feeding device comprises an upper frame, a pickup roller assembly connected to the upper frame and a lower frame. The pickup roller assembly includes a roller frame, a separating roller, a pickup roller, and a belt sleeved on both the separating roller and the pickup roller. The separating roller and the pickup roller are connected to the roller frame. The belt impels the separating roller and the pickup roller to press against the roller frame. When the separating roller rotates, the friction created between the separating roller and the roller frame and the friction created between the pickup roller and the roller frame drives the pickup roller assembly to rotate, then the paper is fed into the paper feeding device. The structure of the paper feeding device is simple and the cost is lower than the conventional one, moreover, it is convenient to assemble.

Abstract: A paper feeding device comprises a cover, a roller frame and at least one paper blocking unit. The roller frame has two side walls. The paper blocking unit is placed beside the side wall, having a projection mounted on the side wall of the roller frame and a paper blocking element including a connecting portion, the connecting portion has a positioning pillar rotatablely connected to the cover. The connecting portion extends downwards to form a stopping portion, the stopping portion further extends downwards to form a paper blocking arm, the lower portion of the paper blocking arm defines an opening communicating one side of the paper blocking arm near the side wall. The projection can stops at the stopping portion and passes through the opening of the paper blocking element to allow the document to be fed in, so the cooperation is easy, the paper feeding device works smoothly.

Abstract: A combination of monochromatic-printing and color-printing device includes a feeding tray for supplying print media, an output tray in which the print media printed in a print job are interleaved and collated, and a paper transport path connecting the feeding tray and the output tray. The paper transport path has a plurality of driving rollers for transporting the print media from the feeding tray to the output tray, a monochromatic print unit for monochromatic printing and a color print unit for color printing disposed thereat. At least one of the monochromatic print unit and the color print unit is controlled to be in work corresponding to a print job.

Abstract: A digital intra-oral imaging device comprises a hollow front part body and a rear part body connected to the front part body. The front part body has an opening defined in the front portion thereof and a circular recess defined in and around the internal circumference wall of the rear portion thereof. A reflector and a light emitting device are disposed above the opening inside the front portion. The rear part body consists of a front tube body and a rear tube body each having a through hole. An elastic latch is inserted in the front and rear tube bodies and has two latch hooks extending through the through holes respectively. The latch hook that is extended from the front tube body is then wedged in the circular recess of the front part body, thereby detachably and rotatably connecting the front part body and the rear part body.

Abstract: A digital photography device includes a lens module, an image memory module, an input/output port, an angle detecting module, an angle memory module connecting with the angle detecting module and an image processing module connecting with the lens module, the image memory module, the input/output port and the angle memory module. The angle detecting module detects an angle that the digital photography device is turned and processes the angle signal into angle data, and the angle data is inputted into the angle memory module. The image processing module controls the lens module to detect an image and processes the image into image data, and then the image data is inputted into the image memory module directly. When the image data is to be output through the input/output port, the image processing module reads the image data and the corresponding angle data and processes the image data according to the angle data, then outputs the processed image data through the input/output port.