Automatic document feeding device and its document feeding method
An automatic feeding and document technology, applied in the direction of image communication, electrical components, etc., can solve the problems that the double-sided scanning efficiency cannot be effectively improved, the curvature and radius are limited, and the appearance size of the model is large, so as to reduce the appearance size, The effect of size reduction and number reduction
Inactive Publication Date: 2012-02-15
LITE ON OPTO TECH (CHANGZHOU) CO LTD +2
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[0004] U.S. Patent No. 6,970,272 issued on November 29, 2005 discloses a U-shaped path double-sided scanning document feeder with a sorting function. When scanning the reverse side, it enters the scanning area from the end of the paper to scan , which will increase the distance between images, so that the double-sided scanning efficiency cannot be effectively improved; and due to the paper characteristics, the curvature and radius of walking on the document travel path are limited, making the appearance of the model with this design larger size
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[0024] The structure of the automatic document feeding device provided by the present invention and the realization of single-sided and double-sided scanning actions will be described below in conjunction with illustrations.
[0025] see Figure 1 to Figure 3 , the automatic document feeding device includes a paper feeding tray 1, an output tray 2, a scanning unit 3, a pickup roller 10 arranged above the paper feeding tray 1, feeding rollers 20, 30, 40, a feeding path 100, and a front scanning The discharge path 200 , the reverse scanning path 300 and the reverse scanning discharge path 400 .
[0026] Wherein, a door structure 90 is provided at the end of the front scanning discharge path 200 , and the door structure 90 includes a door shaft 91 and an arc-shaped door body 92 that can rotate around the door shaft 91 . The opening or closing of the door structure 90 is controlled by a solenoid valve (not shown), so that the door structure 90 can be selectively connected to the ...
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The present invention relates to an automatic document feeding device supporting single-sided and double-sided scanning and a document feeding method thereof. The automatic document feeding device includes a feeding path, a front side scanning discharge path, a back side scanning path and a back side scanning discharge path, wherein the front side scanning and discharging path and the back side scanning path are selectively connected via a gate structure, The document can push the door structure to open a certain angle during the process of traveling, and a clutch and a paper clamping block are arranged on the scanning path of the reverse side. The clutch includes a transmission part and a braking part, and the transmission part is engaged with a feeding roller. When the braking part is separated from the paper clamping block, the transmission part is separated from the feeding roller when the braking part is engaged with the paper clamping block. The cost of the device is low, the appearance size is small, and the image scanning interval can be controlled as small as possible, so the scanning rate is high, and it is suitable for high-end or low-end scanners.
Description
technical field [0001] The invention relates to an automatic document feeding device and a document feeding method using the device, in particular to an automatic document feeding device providing single-sided and double-sided scanning paths and a document feeding method thereof. Background technique [0002] In scanners, an automatic document feeding device is usually used to provide automatic feeding of documents, thereby improving work efficiency and quality. Generally, the automatic document feeding device can realize the document automatic feeding function of single-sided scanning and double-sided scanning. In addition, the current pursuit trend is small size, simple structure, easy control, low cost, and high speed, so most of the conventional technologies are developed towards this goal. [0003] U.S. Patent No. 5,438,435, published on August 1, 1998, discloses a double-sided scanning document feeder with a C+S path, which has a high document feeding speed, but at le...
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IPC IPC(8): H04N1/00
Inventor 黄鹤翔
Owner LITE ON OPTO TECH (CHANGZHOU) CO LTD