Patent application number | Description | Published |
20080197143 | EJECTING ROLLER ASSEMBLY FOR USE IN AUTOMATIC DOCUMENT FEEDER - The present invention relates to an ejecting roller assembly for use in an automatic document feeder to adaptively adjust the nip force between the follower roller and the driving roller in response to input and output of the paper sheet, there effectively preventing the paper sheet from getting jammed. The ejecting roller assembly includes a swing lever, a follower roller, a friction-generating element and a driving roller. The swing lever is coupled to the follower roller for adaptively adjusting the nip force. The friction-generating element is arranged between the swing lever and the follower roller for facilitating increasing the friction force between the swing lever and the follower roller. The driving roller is used for controlling input and output of the paper sheet. | 08-21-2008 |
20080309000 | DOCUMENT-FEDDING DEVICE WITH IMPROVED SHEET-SEPARATING STRUCTURE - The present invention relates to a document-feeding device. The document-feeding device includes a sheet-feeding channel and a sheet-separating structure. The sheet-separating structure includes a base, a separation pad, a pinch roller, a separation roller and an elastic element. The base is disposed in the sheet-feeding channel. The separation pad is disposed on a surface of the base. The pinch roller is disposed in the base. The separation roller is in contact with the separation pad and the pinch roller. The elastic element is used for supporting the base such that the separation pad and the pinch roller are sustained against the separation roller | 12-18-2008 |
20110199450 | PRINTING DEVICE - A printing device includes a base, a sheet pick-up module, a sheet feeding shaft and a main structural body. The main structural body includes a frame and a supporting member. The frame is fixed on the base. The supporting member is disposed on the frame for supporting the sheet pick-up module or the sheet feeding shaft. The frame is formed of an integral metal sheet part for enhancing strength of the main structural body, thereby securely fixing the components of the printing device. | 08-18-2011 |
20110316219 | SHEET PICK-UP DEVICE OF AUTOMATIC DOCUMENT FEEDER - A sheet pick-up device of an automatic document feeder is provided. The sheet pick-up device includes a two-way clutch transmission mechanism, a sheet pick-up arm, a stopper and a linking assembly. When the two-way clutch transmission mechanism is operated to have the sheet pick-up arm move to a standby position, the stopper is moved with the linking assembly to be in a stopping position. Whereas, when the two-way clutch transmission mechanism is operated to have the sheet pick-up arm move to a sheet pick-up position, the stopper is in a non-stopping position. The sheet pick-up device has enhanced operating stability. | 12-29-2011 |
20120133095 | PAPER-STOPPING MECHANISM OF AUTOMATIC DOCUMENT FEEDER - A paper-stopping mechanism of an automatic document feeder is provided. The paper-stopping mechanism comprises an auxiliary gear, a traction member and a paper-stopping arm. As a paper pick-up arm of the automatic document feeder is moved upwardly or downwardly, the auxiliary gear is rotated in different directions. Upon rotation of the auxiliary gear, the auxiliary gear is engaged with a rack of the traction member to drive movement of the traction member. Consequently, a transverse rod of the traction member is sustained against the paper-stopping arm or raises the paper-stopping arm. When the transverse rod is sustained against the paper-stopping arm, the paper-stopping arm fails to be rotated in the paper-feeding direction, so that the function of stopping the paper is achieved. | 05-31-2012 |
20120147091 | INKJET HEAD MAINTENANCE DEVICE - An inkjet head maintenance device includes a power gear and a sliding seat. The sliding seat includes a rack, a first one-way gear and a second one-way gear. The first one-way gear and the second one-way gear are arranged at two ends of the rack, respectively. The power gear is engaged with the rack. In addition, through the first one-way gear and the second one-way gear, the sliding seat is driven by the power gear to move between a standby position and a maintenance position in a reciprocating manner. When the sliding seat is driven by the power gear to move to the maintenance position, the power gear is engaged with the second one-way gear, so that the sliding seat is stayed in the maintenance position to the clean an inkjet head. | 06-14-2012 |
20130182298 | DUPLEX SCANNING APPARATUS - A duplex scanning apparatus includes a flatbed scanning portion and an automatic document feeder. The flatbed scanning portion has a first scanning module. The automatic document feeder has a second scanning module. The first scanning module has a first normal line perpendicular to a horizontal plane. The second scanning module is disposed in an inclined channel, and has a second normal line. In addition, an included angle is defined between the first normal line and the second normal line. Since the second scanning module is not directly disposed over the first scanning module, the height of the duplex scanning apparatus is reduced. | 07-18-2013 |
20130187326 | AUTOMATIC DOCUMENT FEEDER - An automatic document feeder includes an upper cover, a document pick-up module, and a conveying channel. The upper cover has a first hooking element. The document pick-up module is arranged between the upper cover and the conveying channel. In addition, the document pick-up module has a second hooking element. When the automatic document feeder is operated in a standby mode, the document pick-up module is swung to a position near the upper cover and the second hooking element is engaged with the first hooking element, so that the document pick-up module is fixed on the upper cover. Since the document pick-up module is not contacted with the document when the automatic document feeder is operated in the standby mode, the possibility of causing an erroneous action of the document pick-up module will be eliminated. | 07-25-2013 |
20130329266 | SCANNING APPARATUS WITH CALIBRATING FUNCTION - A sheet-feeding type scanning apparatus with a calibrating function is provided. The sheet-feeding type scanning apparatus is configured for feeding a document in a first direction and scanning the document, thereby acquiring an image of the document. The sheet-feeding type scanning apparatus includes a calibration plate, a scanning module, and a transmission module. The transmission module is connected with the scanning module for moving the scanning module in a second direction perpendicular to the first direction. In such way, the scanning module is movable within the limited space of the sheet-feeding type scanning apparatus, so that the scanning module is dynamically calibrated. | 12-12-2013 |
20140063120 | NOZZLE CLEANING MECHANISM OF INKJET PRINTING DEVICE - A nozzle cleaning mechanism of an inkjet printing device includes an ink pump, plural ducts, and a switching module. The ink pump is used for generating a suction force. The plural ducts are connected with the ink pump and corresponding plural print heads. The switching module is used for controlling open/close statues of the plural ducts. For cleaning a first nozzle of a first print head by the nozzle cleaning mechanism, the first duct is corresponding to the first print head is controlled to be in the open status by the switching module. Consequently, the first nozzle is cleaned in response to the suction force. At the same time, the other ducts are in the close status. | 03-06-2014 |
20140327941 | SCANNING APPARATUS - A scanning apparatus includes a scanning module, a calibration plate, and a driving module. The calibration plate includes a first background region for calibrating the brightness of the scanning module and a second background region for intensifying an edge of a document to be scanned. The driving module is used for driving movement of the calibration plate. As a consequence, the scanning light beam from the scanning module is projected onto the first background region or the second background region of the calibration plate. Under this circumstance, the purposes of calibrating the brightness and increasing the image processing efficiency are both achieved. Moreover, since the calibration plate is driven by the driving module to be moved in the direction parallel with said scanning light beam, the purpose of dynamically adjusting the brightness can be achieved. | 11-06-2014 |