CN2270979Y

CN2270979Y - Automatic feeding device for document

Info

Publication number: CN2270979Y
Application number: CN 95220761
Authority: CN
Inventors: 洪明清
Original assignee: Acer Computer Co Ltd
Current assignee: BenQ Corp
Priority date: 1995-08-21
Filing date: 1995-08-21
Publication date: 1997-12-17
Anticipated expiration: 2005-08-21

Abstract

The utility model relates to an automatic feeding device for documents, which matches with an image forming device. The utility model comprises a first document path which can guide the documents to lighting position, and the documents reach to a first outlet after the documents finish lighting. When the documents which are arranged in a paper disc array in increasing order of page number, the output documents array a stacking in reverse order. The utility model also comprises a second document path which can guide the documents to the lighting position, and the documents reach to a second outlet after the documents finish the lighting. When the documents which are arranged in the paper disc array in increasing order of the page number, the output documents array the stacking in the same order. In addition, the utility model comprises a channel selector which can select the first document path and the second document path.

Description

Automatic file feeder

The relevant automatic file feeder (ADF) of the utility model, You Zhineng with source document optionally by the former file feeding unit that puts in order or discharge by opposite order.

Existing file feeding unit is normal to be used with photoprinter or scanner, and it feeds a plurality of document drafts according to priority to a scanning position, the image that has desire to xerox or scan on the document draft.At scanning position, the mat light source imposes illumination to file, so that the image on it is remake on the paper or on the slide.

With the file passage, the ADF of two kinds of patterns is arranged on market.The first kind is referred to as straight movement type, and second class is referred to as U type swinging.File paper straight movement type ADF feeding transmission effect to different-thickness is better than U type swinging.But, when adopting straight movement type ADF, after feeding in certain sequence and scanning many files, discharge and the document order that piles up can become reverse order with original order by the ADF outlet.Opposite, when adopting U type swinging, after feeding in certain sequence and scanning many files, discharge and the document order that piles up can be identical with original order by the ADF outlet.But U type swinging ADF only is applicable to thin file paper.Easy speech, when thick file adopted U type swinging ADF, paper jam phenomenon more easily took place.

Because of the single ADF that knows at present can't be selected straight-going mode or be selected U type switchback mode by the user, so can provide the ADF of two kinds of patterns that strong demand is arranged to this kind on the market.

In view of this, the purpose of this utility model is to provide a kind of automatic file feeder ADF in order to solve above-mentioned the problems of the prior art, and it can provide two kinds of patterns to select to use for the user.

The ADF device that the utility model provides is achieved in that it is to place the top document that file piles up in the paper disc to feed in regular turn, and it is to be placed in the paper disc that file piles up, and is stacked in the paper disc with page number incremental order or its reverse order, and described device comprises:

One leader files is to the first file passage of lighting position, and the file through throwing light on exports one first outlet to, and file is to arrange with the page number increasing order in paper disc, and the file of output is to be arranged in one with opposite order to fold;

One leader files is to the second file passage of lighting position, exports one second outlet to through the file of illumination, and file is when arranging with the page number increasing order in paper disc, and the file of output is to be arranged in one with identical order to fold; And

One available first or the channel to channel adapter of the second file passage.

The purpose of this utility model, characteristics and advantage will be with reference to the accompanying drawings, are described below in conjunction with the embodiments:

Brief Description Of Drawings:

Fig. 1 is the utility model feeding unit and the skeleton view that platform-type scanner is used.

Fig. 2 is the operating state figure of the utility model element when straight-going mode.

Fig. 3 is the operating state figure of the utility model element when U type switchback mode.

Fig. 4 is the skeleton view of conveying cylinder 30 among Fig. 2 and Fig. 3.

As shown in Figure 1, generally speaking the utility model ADF11, is to be placed on the flat board of a platform-type scanner 13, and can with plate isolation.

With reference to figure 2, the utility model comprises one first file passage, and it comprises the cylinder 22 of nipping, conveying

cylinder

23,25,26,30 and output roller 27.When channel to channel adapter 24 is configured to file transmitted downwards, the walking path of file be the first file passage as shown by arrows.Before scanning operation began, file at first was placed into and is stacked in the paper disc 50.After coming into operation, a file of top layer is at first bitten by the bite (nip) of the cylinder 22 of nipping with the guiding face that matches in the document stack, and in the feeding ADF inside.Afterwards, the bite of this document by conveying cylinder 23, and by the guiding of selector switch 24 lower surfaces, the bite that enters 30,25 on cylinder.In by behind the scanning position 40, file is by cylinder 30 and 26 s' bite.Because of selector switch 28 is activated counterclockwise low-angle of deflection, thereby sealed the passage of 30 on selector switch 28 and cylinder, so file by the bite of 27 of output rollers, and exports to outside the ADF housing.Must be appreciated that the image of the file in paper disc 50 must be down when selecting straight-going mode, like this, this image could be scanned in scanning position 40 places.Also must be appreciated that when adopting straight-going mode, the document order that piles up in outgoing position can be opposite with original document order.

With reference to figure 3, the utility model comprises one second file passage, and it comprises the cylinder 22 of nipping, conveying

cylinder

23,29,30, selector switch 28, conveying

cylinder

26,25, guiding face 21 and output roller 20.When channel to channel adapter 24 is configured to file upwards transmitted, the walking path of file be the second file passage as shown by arrows.Before scanning operation began, file at first was placed into and is stacked in the paper disc 50.After coming into operation, a file of the top layer cylinder 22 of at first being nipped is bitten with the bite of the guiding face that matches in the document stack, and in the feeding ADF inside.Afterwards, the bite of this document by conveying cylinder 23, and by the guiding of selector switch 24 upper surfaces, the bite that enters 30,29 on cylinder.Then, this document is by the passage of 30 on selector switch 28 and cylinder, again the bite by cylinder 30 and 26.And enter scanning position 40, behind scanning position 40, file is by cylinder 30 and 25 s' bite.Afterwards, by the guiding of guiding face 21, file passes through the bite of output roller 20, and is output to ADF 11 housings.Must be appreciated that when U type switchback mode started, the image of file must be up in paper disc 50, like this, this image could be scanned in scanning position 40 places.Also must be appreciated that when adopting U type switchback mode, the document order that piles up in outgoing position can be identical with original document order.

Fig. 4 discloses the stereographic map of conveying cylinder 30, scheming as can be known thus, conveying cylinder 30 rotates according to its axle center, and two conveying cylinders 30 distance of being separated by, the interior space of this distance supplies to hold the tail end (imaginary line among Fig. 2, Fig. 3) of relevant fairlead, and the tail end (imaginary line among Fig. 2, Fig. 3) that holds selector switch 28 when straight-going mode.

Claims

1, the automatic file feeder that is used of a kind of and image building mortion, this document has image and is placed in the paper disc, this device is for top document in the paper disc is fed in regular turn, and deliver to a lighting position on the image building mortion for scanning, file in the paper disc is to be stacked in the paper disc with page number order or reverse order, it is characterized in that, comprising:

One directs into lighting position with said file, and will output to the first file passage of first outlet of ADF through the file after the illumination, and this first passage is a horizontal channel basically; And with page number increasing order rank file when the paper disc, the file of its output be arranged in reversed sequence one folded,

One directs into lighting position with said file, and will output to the second file passage of second outlet of ADF through the file after the illumination, and this second channel is the U type passage that turns round basically; And with page number increasing order rank file when the paper disc, the file of its output be arranged in same order one folded,

Selective first or the channel to channel adapter of the second file passage.

2, automatic file feeder as claimed in claim 1, wherein this channel to channel adapter comprises a first selector, be positioned at the inlet of the first and second file passage, this first selector has one first guidance surface and one second guidance surface, the said file of the selective property of first guidance surface ground guiding enters first passage, and the said file of the selective property of second guidance surface ground guiding enters second channel.