Scanning device with alternate scanning dual-scanning head and copying equipment
A technology of dual scanning heads and scanning devices, which is applied to equipment for electrical recording technology using charge patterns, electrical recording technology using charge graphics, and electrography, etc., and can solve the problems of non-compliance, cost reduction, and large memory space.
Active Publication Date: 2008-03-05
AVISION PRECISION IND (SUZHOU) CO LTD
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[0004] However, the print processor 120 must simultaneously store the front image signal 114F and the back image signal 114B, and provide a relatively large buffer space to generate the front print signal 124F and the back print signal 124B.
Therefore, the memory space required by the print processor 120 must be quite large, which does not meet the need for cost reduction
Method used
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[0011] FIG. 2 is a schematic diagram of a scanning device according to a first embodiment of the present invention. As shown in Figure 2, a scanning device 10 with alternately scanning dual scanning heads in this embodiment includes a paper feed tray 11, a paper feed path 12, a paper output path 13, a paper output tray 14, a first scanning head 15, The second scanning head 16 and the paper feeding mechanism 17 . The paper tray 11 is used to store several documents D. The front side DF of the document D faces upward, and the paper feeding mechanism 17 feeds the uppermost document. The paper input channel 12 is connected to the paper tray 11 , the paper output channel 13 is connected to the paper input channel 12 , and the paper output box 14 is connected to the paper output channel 13 . The first scanning head 15 is located on the paper feeding path 12 and is used to scan the back side DB of each document D to output the back side image signal SB. The second scanning head 16...
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The scanning device includes the paper feed box, the paper feed channel, the paper out channel, the paper out box, the first scanning head, the second scanning head, and the sheet feed device. The paper feed box is in use for storing files. The paper feed channel is connected to the paper feed box and the paper out channel, and the paper out box is connected to the paper out channel. Being located on the paper feed channel, the first scanning head is in use for scanning rear face of each file in order to output image signal of rear face. Being located on the paper out channel, the second scanning head is in use for scanning front face in order to output image signal of front face. The sheet feed device is in use for feeding each file from the paper feed box along the paper feed channel in sequence to the paper out box. Feeding each file, the sheet feed device makes each file travel in opposite directions between the paper feed channel and the paper out channel.
Description
technical field [0001] The invention relates to a scanning device and a copying device, in particular to a scanning device and a copying device with alternately scanning double scanning heads. Background technique [0002] FIG. 1 shows a schematic diagram of a conventional copying device 100 . As shown in FIG. 1 , a conventional copying device 100 includes a scanning device 110 , a print processor 120 and a printing device 130 . The scanning device 110 and the printing device 130 are electrically connected to the printing processor 120 . The scanning device 110 includes two scanning heads 111 and 112 which respectively scan the front side 113F and the back side 113B of a document 113 traveling along a channel 115 . To output the front image signal 114F and the back image signal 114B to the print processor 120 . The print processor 120 processes the front image signal 114F and the back image signal 114B into a front print signal 124F and a back print signal 124B that can b...
Claims
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IPC IPC(8): H04N1/04G03G15/00
Inventor 陈琰成
Owner AVISION PRECISION IND (SUZHOU) CO LTD