CN105150690B - Image erasing apparatus and image erasing method - Google Patents

Image erasing apparatus and image erasing method Download PDF

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Publication number
CN105150690B
CN105150690B CN201510658129.6A CN201510658129A CN105150690B CN 105150690 B CN105150690 B CN 105150690B CN 201510658129 A CN201510658129 A CN 201510658129A CN 105150690 B CN105150690 B CN 105150690B
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CN
China
Prior art keywords
reading
image
colour killing
paper
transport path
Prior art date
Application number
CN201510658129.6A
Other languages
Chinese (zh)
Other versions
CN105150690A (en
Inventor
井口健
横地秀俊
八幡伊佐雄
川口贵弘
杉崎芳晃
水谷企久夫
泷裕之
土桥宏行
饭塚千秋
Original Assignee
株式会社东芝
东芝泰格有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US201161492805P priority Critical
Priority to US61/492,805 priority
Priority to US201161494847P priority
Priority to US61/494,850 priority
Priority to US201161494850P priority
Priority to US201161494856P priority
Priority to US61/494,856 priority
Priority to US61/494,847 priority
Priority to US201161495274P priority
Priority to US61/495,274 priority
Priority to JP2011-208903 priority
Priority to JP2011208903A priority patent/JP5458077B2/en
Priority to JP2011211811 priority
Priority to JP2011-211811 priority
Priority to JP2011-241977 priority
Priority to JP2011241977A priority patent/JP5451717B2/en
Application filed by 株式会社东芝, 东芝泰格有限公司 filed Critical 株式会社东芝
Priority to CN201210130392.4A priority patent/CN102809914B/en
Publication of CN105150690A publication Critical patent/CN105150690A/en
Application granted granted Critical
Publication of CN105150690B publication Critical patent/CN105150690B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/26Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2202/00Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/30Embodiments of or processes related to thermal heads
    • B41J2202/37Writing and erasing thermal head

Abstract

According to one embodiment, an image erasing apparatus includes a sheet supply portion to supply a sheet; a first conveying path which is connected to a sheet discharge poriton used for discharging a recording medium from the sheet supply poriton, and is equipped with a reading portion that is used for reading an image of the recording medium and conveying the recording medium; a second conveying path which is provided with an erasing portion used for erasing the image of the recording medium and branches from the first conveying path at the downstream side of the reader and merges with the first conveying path at a meeting point between the sheet supply portion and the reader; and a control portion controlling changes of routes of the conveying paths of the recording medium.

Description

Image erasing device, image erasing method and image storage system

The application is to be April 27, Application No. 201210130392.4, invention entitled " image in 2012 applying date The divisional application of the patent application of erasing device and image erasing method ", entire contents are hereby expressly incorporated by reference.

Cross reference to related applications

The application based on and require on June 2nd, 2011 submit to formerly U. S. application June 8 in 61/492805,2011 The formerly U.S. that formerly U. S. application on June 9th, 61/494847,61/494850,61/494856,2011 that day submits to submits to The benefit of priority of application 61/495274, entire contents are hereby expressly incorporated by reference.

The application also based on and require to submit within 26th in September in 2011 Japanese patent application 2011-208903,2011 Japanese patent application 2011-211811, the Japanese patent application 2011- of on November 4th, 2011 submission that September is submitted on the 28th The benefit of priority of No. 241977, entire contents are hereby expressly incorporated by reference.

Technical field

Embodiments of the present invention relate to eliminate the color of image of the paper being defined image by image processing system Image erasing device and image erasing method.

Background technology

It is known in the art that have that colour killing process is carried out to paper by heat, thus the image eliminating color of image disappears Color device.Image erasing device has colour killing portion, this colour killing portion to by can colour killing colorant define image thin slice carry out plus Heat treatment, thus eliminate the color of the image (colorant) on thin slice.Image erasing device has: carries out for retaining before colour killing The reading part of the image reading of view data;And, carry out after image colour killing for judging whether normally to have carried out colour killing Image reading reading part.But, if be respectively provided with carry out the reading part of the image reading for retaining view data with And the reading part carrying out for judging image reading that the thin slice after colour killing can recycle, then can produce asking of cost increase Topic.In addition, if in the case of being only read out processing, thin slice passes through colour killing portion, then can produce and spend asking of process time Topic.

Content of the invention

According to embodiment, image erasing device generally includes: sheet feed section, for supplying thin slice;Paper discharge unit, for discharging Described thin slice;First transport path, forms from described sheet feed section towards the transport path of described paper discharge unit;Reading part, is configured at Described first transport path, for reading the image of described sheet surface;Colour killing portion, on described thin slice by can colour killing color The image that material is formed carries out colour killing;Switching part, configuration is on described first transport path, and is located at the thin slice of described reading part Conveying direction downstream, for switching to the direction of described paper discharge unit or the side in described colour killing portion by the conveying direction of described thin slice To;And, the second transport path, there is described colour killing portion, on the position configuring described switching part, described second transport path From the downstream branch of the described reading part of described first transport path out, between described sheet feed section and described reading part Point converge with described first transport path.

Brief description

Fig. 1 is the block diagram representing the system in first embodiment.

Fig. 2 is the summary construction diagram of the image erasing device in first embodiment.

Fig. 3 is the block diagram representing image erasing device, client pc and server in first embodiment.

Fig. 4 is the paper sheet delivery state in the first transport path represent the image erasing device in first embodiment Skeleton diagram.

Fig. 5 is the paper sheet delivery state in the second transport path represent the image erasing device in first embodiment Skeleton diagram.

Fig. 6 be represent the image erasing device in first embodiment colour killing process after the first transport path in paper Open the skeleton diagram of feed status.

Fig. 7 shows the first display example of the model selection based on setting item representing in display part.

Fig. 8 is the table of the relation representing setting item and pattern.

Fig. 9 is four setting items of the setting item including distinguishing in advance according to the order arrangement display being processed Display example.

Figure 10 is to represent the flow chart that the colour killing in second embodiment is processed.

Figure 11 is the flow chart representing the reading process in second embodiment.

Figure 12 is the flow chart distinguishing process representing in second embodiment.

Figure 13 is the flow chart representing reading and colour killing process in second embodiment.

Figure 14 is colour killing and the flow chart distinguishing process representing in second embodiment.

Figure 15 is to represent the flow chart that reading, colour killing and differentiation in second embodiment are processed.

Figure 16 is to represent in the third embodiment, the feed status of the first paper and first in the second transport path The skeleton diagram of the feed status of the second paper in transport path.

Figure 17 is to represent the first paper in the third embodiment, conveying to the first transport path from the second transport path Feed status and the second transport path in the feed status of the second paper skeleton diagram.

Figure 18 is to represent in the third embodiment, the feed status of the second paper and first in the second transport path The skeleton diagram of the feed status of the 3rd paper in transport path.

Figure 19 is to represent the second paper in the third embodiment, conveying to the first transport path from the second transport path Feed status and the second transport path in the feed status of the 3rd paper skeleton diagram.

Figure 20 is the flow chart of the processing sequence during process four representing in the 3rd embodiment.

Figure 21 is the structure chart representing the image erasing device in the 4th embodiment.

Figure 22 is the structure chart representing the image erasing device in the 5th embodiment.

Specific embodiment

Below, referring to the drawings the embodiment of image erasing device is illustrated.

First embodiment

The image erasing device of first embodiment, before and after image colour killing, is read to image by identical reading part Take.

Fig. 1 is the system construction drawing of first embodiment.As system architecture, image storage system for example has: multiple Image erasing device 100, multiple client pc (personal computer: PC) 101, server 102.In addition, system Each part be connected with each other by network 103.

Fig. 2 is the structure chart of image erasing device.In image erasing device 100, pass through to disappear for image forming part The color toner or paper (recording medium) of image can be defined by colour killing ink etc. " can colour killing colorant ", colour killing portion eliminated by Can colour killing colorant (hereinafter referred to as recording materials) formed image color " colour killing process ".Image erasing device 100 has There are sheet feed section 10, the first transport path 11, the second transport path 12, reading part 13, colour killing portion 15, conveying roller 16, route diversion Portion 17, the first paper discharge unit 19 and the second paper discharge unit 20.

In order to the paper p that will recycle is carried out with colour killing, sheet feed section 10 is to the internal paper supply of image erasing device 100.For Paper portion 10 has paper supply tray 22 and pickup roller 18.Paper supply tray 22 loads the paper p for recycling.Pickup roller 18 is from confession Paper pallet 22 takes out paper p one by one, and conveys to the first transport path.

First transport path 11, the second transport path 12 have multiple conveying rollers 16.By driven roller and driven voller in pairs and Constitute conveying roller 16.First transport path 11 has reading part 13.In the present embodiment, reading part 13 has the first reading list First 13a and the second reading unit 13b.First reading unit 13a and the second reading unit 13b have two-dimentional ccd scanner. First reading unit 13a reads the one side being conveyed the paper coming by sheet feed section 10.Second reading unit 13b reads and the first reading The face of the face opposite side that unit 13a reads.Ram (random access memory: random access memory as storage part Device) 203 (Fig. 3) preserve the image that first reading unit 13a and the second reading unit 13b are read.By the first reading unit The preservation place of the image of 13a and the reading of the second reading unit 13b is not limited in ram 203 or rom (read Only memory: read-only storage) 202 or hdd (hard disk drive: hard disk drives), memory etc..

The image being read by the first reading unit 13a and the second reading unit 13b, be not limited in as shown in Figure 3 that Sample is saved in the ram 203 of image erasing device 100 it is also possible to be saved in the ram 302 of client pc 101 or server 102 In ram 402.Additionally, in order to user is carried out with personal authentication, and there is login, nullify the image erasing device of function In the case of 100, when image erasing device 100 is nullified, can be by the ram 203 being saved in image erasing device 100 View data is sent to the ram 302 of the client pc 101 or ram 402 of server 102, to be saved in ram 302 or ram In 402.Additionally, in the case that image erasing device 100 has personal authentication's function, by the first reading unit 13a and The image that two reading units 13b read is it is also possible to be saved in association in memory or server with user id.

Additionally, reading part 13 reads the surface of paper p, to judge that can paper p use, whether the lettering of paper is disappeared Color.The image that control unit 200 described later is read based on reading part 13, judge whether be can colour killing thin slice or whether be can be again Using thin slice.

Carry out the reading being carried out by the first reading unit 13a and the second reading unit 13b twice respectively.Control unit 200 When reading part 13 carries out reading for the first time, the image being read is carried out electronization, and this view data is saved in storage Portion.During after reading part 13 carries out colour killing second reading of control unit 200, can paper p be recycled and judges.

Image erasing device 100 can also preserve image when carrying out reading for the first time, judge whether be due to fold or Staple, can not the memorandum record etc. of colour killing and lead to paper can not use.For example, if image erasing device 100 is being carried out It is judged as that paper is the state that can recycle when reading for the first time, then colour killing is implemented to paper and process, carrying out second reading When, judge the image whether colour killing of paper p.Image erasing device 100 according to second judged result reading, to first Paper discharge unit 19 or the second paper discharge unit 20 ADF.When reading first time, if it is determined that paper is the state that can not recycle, then Carry out colour killing process, and do not carry out second reading, and to the first paper discharge unit 19 or the second paper discharge unit 20 ADF.Additionally, When reading for the first time, if it is determined that paper is the state that can not recycle it is also possible to not carry out colour killing process and second Read, and to the first paper discharge unit 19 or the second paper discharge unit 20 ADF.These settings can select in advance, set.First reads list First 13a and the second reading unit 13b, are not limited in paired two-dimentional ccd scanner or cmos sensor.

In addition it is also possible in the reading after colour killing, based on the image being read judge whether due to fold, staple, Warpage, can not the presence or absence of the memorandum record etc. of colour killing and lead to paper unusable.If be read out after colour killing, it is easy to Detection fold, staple, warpage, can not colour killing memorandum record etc..Cpu 200 judge whether in the reading after colour killing due to Fold, staple, warpage, can not the memorandum record etc. of colour killing and lead to paper can not use, and according to judged result, to first Paper discharge unit 19 or the second paper discharge unit 20 ADF.These settings can select in advance, set.

First transport path 11 forms the transport path from sheet feed section 10 towards the first paper discharge unit 19 or the second paper discharge unit 20. First transport path 11 conveys the thin slice of supply to reading part 13 or paper discharge unit 23.The first reading in the first transport path 11 Branch point bp (branching point) place in the thin slice conveying direction downstream of unit 13a and the second reading unit 13b, the Two transport paths 12 are branched off from the first transport path 11.It is configured with route diversion portion (switching part) 17 at branch point bp. Route diversion portion 17 is used for switching the conveying direction of conveyed paper.Route diversion portion 17 will convey in the first transport path 11 Paper sheet delivery is to the second transport path 12 or paper discharge unit 23.

Second transport path 12 is provided with colour killing portion 15 in transport path.The second transport road being branched off from branch point Paper p is conveyed by the conveying roller 16 in footpath 12 to colour killing portion 15.Additionally, being more located at converging of conveying direction upstream than reading part 13 Point mp (meeting point) place, the second transport path 12 is converged with the first transport path 11.I.e., the second transport path 12 exists Converge with the first transport path at point mp between sheet feed section 10 and reading part 13.Colour killing portion 15 have roller to 21 with And heater 205 (Fig. 3).Heater 205 is used for roller is heated to 21.The roller being heated by heater 205 to 21, to paper P is applied above temperature or the heat of certain numerical value, thus to using can colour killing the Image forming material paper p that formed Image is heated, and makes colorant decolorizable.

Paper discharge unit 23 has the first paper discharge unit 19 and the second paper discharge unit 20.To carry out what reading process and colour killing were processed Paper p after various process is to the first paper discharge unit 19 or the second paper discharge unit 20 ADF.Can also allow users to select paper p To one of the first paper discharge unit 19 or the second paper discharge unit 20 ADF.

Fig. 3 is the block diagram of image erasing device 100, client pc 101 and server 102.Image erasing device 100 Control unit (controller) cpu (central processing unit: central processing unit) 200 passes through system bus 201 and rom 202nd, ram 203, the first reading unit 13a, the ccd sensor 204 of the second reading unit 13b, the heater in colour killing portion 15 205th, interface (i/f) 206 connects, and this interface (i/f) 206 is used for input from outside data and to external data output. Cpu 200 passes through the i/f 206 being connected via system bus 201, is communicated with client pc 101 or server 102.

Additionally, cpu 200 and the route diversion portion drive control part 207 for control path changing unit 17, being used for controlling Drive the paper sheet delivery drive and control of electric machine portion 208 of paper sheet delivery motor 209, operating portion 210 and the display part 211 of conveying roller It is connected.

Be stored with rom 202 make the program of cpu 200 action, as can recycle the paper lettering rate of index, For judging image whether by the concentration threshold of colour killing.In addition, sentencing to depth of fold etc. when first time reading image In the case of disconnected, the concentration threshold for judging depth of folding etc. is stored in rom 202.It is stored with ram 203 and reading Obtained image during the image of paper p.Ccd sensor 204 is configured to the line sensor of row, for detecting paper p's Image deep or light.Heater 205 uses ih heater etc., passes through the period in colour killing portion 15 in paper p, via roller to 21 pairs of paper P applies heat and makes colorant decolorizable.

Operating portion 210 has the board-like display part of touch surface 211 and various key, for example, be configured in erasing device main body Top.Operated key for example has numerical key, stop key, start button etc..Display part 211 display includes the various of erasing device 100 The set information of tupe, operating state, record (log) information or the message displaying to the user that.User can be by operation Portion 210 selects to start or read in the tupe of the erasing device 100 of the image of thin slice p carrying out colour killing for colour killing.With regard to Tupe will be explained hereinafter.Display part 211 can be touch surface board-like it is also possible to also serve as operating portion.Additionally, operation Portion 210 is not limited to configuration in the main body of erasing device 100.For example, can also be can be from by network and colour killing dress Put the structure that the operating portion of the external device (ED) of 100 connections is operated.Or, operating portion 210 can also be independently of colour killing dress Put the form of main body, operate the structure of erasing device 100 by wired or radio communication.The operating portion of present embodiment is only If can carry out processing the device of instruction, information read etc. for erasing device 100.In the following description, will show Show that portion 211 to illustrate as touch panel.

Cpu 200 by being controlled to path changing unit drive control part 207, drives route diversion portion 17, with from the The mode that one transport path 11 conveys paper p to the second transport path 12 is allocated, or with from the first transport path 11 to the The mode that one paper discharge unit 19, the second paper discharge unit 20 convey paper p is allocated.And, whether cpu 200 is after image colour killing to Normally implement colour killing, i.e. paper p can recycle and be judged.

Client pc 101 has cpu 300, rom 301, ram 302, operating portion 303, display part 304 and i/f 305. Cpu 300 as the control unit of client pc 101 passes through system bus 306, with rom 301, ram 302, operating portion 303, aobvious Show that portion 304 and i/f 305 connect.Additionally, can also preserve by image erasing device 100 in the ram 302 of client pc 101 The first reading unit 13a and the second reading unit 13b read image.

Server 102 has cpu 400, rom 401, ram 402, i/f 403.Control unit as server 102 Cpu 400 is connected with rom 401, ram 402, i/f 403 by system bus 404.Additionally, in the ram 402 of server 102 The image being read by the first reading unit 13a and second reading unit 13b of image erasing device 100 can also be preserved.

Fig. 4 to Fig. 6 is to represent paper in the first transport path 11 of image erasing device 100 and the second transport path 12 The figure of the conveying of p.

Fig. 4 illustrate the first transport path 11 convey by pickup roller 18 from sheet feed section 10 take out and paper supply paper p state. The arrow of in figure represents the direct of travel of paper p.Paper p is conveyed by conveying roller 16 to the first transport path, the first reading unit 13a and the second reading unit 13b read the image on paper p.If the first reading unit 13a or the second reading unit 13b Paper p is detected, then the conveying direction of paper p is become to the second transport path 12 by route diversion portion 17 from the first transport path 11 More.Route diversion portion 17 by the paper p that be have read image from the first reading unit 13a and the second reading unit 13b distribute to Second transport path 12.

Fig. 5 illustrates that the conveying roller 16 of the second transport path 12 conveys the state of paper p.Colour killing portion 15 is to from the first transport road Footpath 11 is conveyed from conveying roller 16 via route diversion portion 17 and carries out colour killing to the image on the paper p of the second transport path 12.Disappear Color portion 15 carries out after colour killing to the image on paper p, and the conveying roller 16 of the second transport path 12 and the first transport path 11 will Image is conveyed the first reading unit 13a to the first transport path 11 and the second reading unit 13b by the paper p after colour killing Upstream.

Fig. 6 is the figure of the feed status of paper p in the first transport path 11 after representing image colour killing process.First reading Unit 13a and the second reading unit 13b is taken to again read off the conveying roller 16 of the second transport path 12 from the second transport path 12 Image on the paper p of the first transport path 11 conveying.First reading unit 13a and the second reading unit 13b are read again After taking the image on paper p, the conveying direction of paper p is become to paper discharge unit 23 by route diversion portion 17 from the first transport path 11 More.Paper p after image is again read off by route diversion portion 17 distributes to the first paper discharge unit 19 or the second paper discharge unit 20.

Using the first paper discharge unit 19 as the ADF destination that can recycle paper p, the second paper discharge unit 20 is as can not profit again ADF destination with paper p.The image being read according to the first reading unit 13a and the second reading unit 13b, cpu Can 200 couples of paper p recycle and judge.If can recycle, cpu 200 conveys paper p to the first paper discharge unit 19. If can not recycle, cpu 200 conveys paper p to the second paper discharge unit 20.It is not limited to that or following institute Situation about stating: if can recycle, cpu 200 conveys paper p to the second paper discharge unit 20, if can not recycle, cpu 200 convey paper p to the first paper discharge unit 19.

After reading image, cpu 200 implements recycling paper and can not recycling paper of the paper p after image colour killing The differentiation opened, to the first reading unit 13a and the second reading unit 13b conveying paper p twice.In handling of paper p one by one In the case of, the first reading unit 13a and the second reading unit 13b interaction carry out for before colour killing retain view data figure As reading, for judging whether normally to implement the image reading of colour killing after image colour killing.

In addition, cpu 200 is when the first reading unit 13a and the second reading unit 13b read image and in colour killing Portion 15 is to the transporting velocity changing paper p during image colour killing.In colour killing portion 15, if carried out when colour killing is processed with than regulation speed Spend fast transporting velocity to be conveyed, then can there is heater 205 can not apply enough heats to colorant, and cannot normally enter The problem that row colour killing is processed.On the other hand although reading part also due to part is different and maximum speed is different, but and colour killing The highest transporting velocity processing is compared, and highest transporting velocity during reading image is faster.Therefore, when colour killing is processed, during colour killing Transporting velocity v1 and read when transporting velocity v2 relation be v1 < v2.

On the other hand, when not carrying out colour killing process and being read out process, due to there is no need to make conveying during reading Speed v2 is identical with transporting velocity v1 in colour killing portion 15, therefore, so that colour killing portion 15 is conveyed with the speed of v1 >=v2.By changing Become when reading image and the transporting velocity to paper p during image colour killing, process high speed can be made.

Additionally, when the image that reading part 13 reads is saved in memory or the server 102 of image erasing device 100, leading to The operating unit crossing operating portion 210, user terminal or other external device (ED)s of image erasing device 100 accesses this image.Example As in the case of preserving image in the way of being associated with user id, it is possible to use user id enters line retrieval and extracts pass The image of connection.The image being retrieved can be saved in the mobile destination that user specifies or carry out the utilization such as read.

Image erasing device 100 as above passes through will carry out for making view data be deposited in data store in advance The reading part of image reading be set to the reading part carrying out for judging whether normally to have carried out the image reading of colour killing Same reading part is such that it is able to cut down cost.In addition, by change read image when and paper p during image colour killing conveying Speed, can carry out high speed process.

Second embodiment

The image erasing device of the second embodiment shown in Fig. 7 to Figure 15 has multiple tupes.In in figure, for It is labelled with same-sign with first embodiment identical structure division.

First pattern is colour killing pattern, second pattern is that read mode, the 3rd pattern are to discriminate between pattern.4th Pattern is the pattern being combined with reading and colour killing, and the 5th pattern is the pattern being combined with colour killing and differentiation, the 6th mould Formula is the pattern being combined with reading, colour killing and differentiation.

The erasing device 100 of present embodiment includes: for supplying the sheet feed section 10 of thin slice;For discharging recording medium Paper discharge unit (the first paper discharge unit 19 and the second paper discharge unit 20);Formed from sheet feed section 10 towards the first of the transport path of paper discharge unit Transport path 11;Reading part 13, is configured at the first transport path 11, for reading the image of sheet surface;Colour killing portion 15, is used for To by colour killing can be carried out by the image that formed on thin slice of colour killing colorant;Switching part (route diversion portion) 17, configuration is defeated first Send on path 11 and the thin slice conveying direction downstream in reading part 13, for the conveying direction of thin slice being switched the side to paper discharge unit To or colour killing portion 15 direction;Second transport path 12, has colour killing portion 15, configuration switching part 17 position, defeated from first Send the downstream branch of reading part 13 in path 11 out, at the point between sheet feed section 10 and reading part 13, defeated with first Path 11 is sent to converge;And control unit (cpu) 200, it is used for carrying out following control, become according to tupe by switching part 17 More convey the direction of thin slice.

Fig. 7 shows the first display example of the model selection based on setting item representing in display part 211.Located When reason sets, cpu 200 shows on display part 211: setting item 30,31,32,33;Process select button 40,41,42, 43;Confirming button 50;Cancel button 51.Additionally, cpu 200 can set time display carrying out process, and for example " please start (on) will The process of execution ", to urge selection to process.Cpu 200 is according to the order arrangement display setting item 30,31,32 processing.In figure In 7, by order arrangement display setting item 30,31,32 from left to right.Setting item 30 is data preservation, setting item 31 It is colour killing, setting item 32 is to discriminate between, setting item 33 is prior differentiation.The putting in order and not only of setting item 30,31,32 It is limited to from left to right, for example, can also be by order arrangement display from top to bottom.

Distinguishing in advance is to confirm lettering rate in primary reading, and the process making a distinction.If lettering rate is high, Cpu 200 does not carry out colour killing process, but is judged as recycling, and to the second paper discharge unit 20 ADF.For example, if detection In the range of lettering rate be more than threshold value, then be judged as that lettering rate is high.For judging the threshold of lettering rate that can paper recycle Value can suitably change.

Setting item 30,31,32 is shown with the shape representing the order of process.For example, represented with arrow and set Determine the shape of project 30,31, shown in the way of can be appreciated that the order being processed.Additionally, be not limited in Arrow is shown it is also possible to record order by alphanumeric (alphanumeric) or character.

Cpu 200 is with setting item 30 and process select button 40, setting item 31 and process select button 41, setting item Mesh 32 mode paired respectively with processing select button 42 is shown.Process select button 40,41,42 can select out (on) or close (off).If processing select button 40 to be selected as out, preserve, for carrying out data, the setting processing, if place Reason select button 41 is selected as out, then for carrying out the setting of colour killing process, if process select button 42 be selected as out, For making a distinction the setting of process, if process select button 43 be selected as out, for being distinguished the setting of process in advance. If processing select button 40 to be selected as closing, preserve, for not carrying out data, the setting processing, if processing select button 41 It is selected as closing, then for not carrying out the setting of colour killing process, if process select button 42 to be selected as closing, for not carrying out area The setting of office reason, if process select button 43 to be selected as closing, for not distinguished the setting of process in advance.Display part 211 is touch panel, and cpu 200 for example if it is determined that pressing selection treatment button 40,41,42,43, then shows selection mark Note (tab), is shown in the way of being opened or closed with selection.

User selects on or off by button 40,41,42,43, after selecting to terminate, presses confirming button 50.cpu 200 after being judged as pressing confirming button 50, enters row mode and determines.Additionally, cpu 200 be judged as pressing cancellation by After button 51, stop processing setting.

Fig. 8 is the table of the relation representing setting item and pattern.Select to press by the process of setting item 30,31,32,33 The setting of button 40,41,42,43 is selecting pattern.By processing the combination opening or closing of select button 40,41,42,43, thus To select following 12 kind pattern: colour killing pattern, read mode, differentiation pattern, distinguish in advance pattern, be combined with reading and The pattern of colour killing, it is combined with the pattern of colour killing and differentiation, is combined with the pattern of reading and colour killing and differentiation, is combined with reading The pattern that takes and distinguish in advance, be combined with prior distinguish and colour killing pattern, be combined with reading and prior distinguish and The pattern of colour killing, be combined with prior distinguish and colour killing and differentiation pattern, be combined with reading and distinguish in advance and disappear Color and the pattern of differentiation.

If the select button 40 that processes of the setting item 30 preserving in data have selected out, in the prior setting item distinguished Mesh 33 process select button 43 have selected pass, the setting item 31 of colour killing process select button 41 have selected pass, in area The process select button 42 of the setting item 32 dividing have selected pass, then cpu 200 is judged as read mode.If preserved in data The select button 40 that processes of setting item 30 have selected passs, select in the process select button 43 of the in advance setting item 33 of differentiation Selected open, colour killing setting item 31 process select button 41 have selected passs, distinguish setting item 32 process select Select button 42 and have selected pass, then cpu 200 is judged as distinguishing in advance pattern.If the process of the setting item 30 preserving in data Select button 40 have selected pass, have selected pass, setting in colour killing in the select button 43 that processes of the prior setting item 33 distinguished The select button 41 that processes determining project 31 have selected out, have selected pass in the process select button 42 of setting item 32 distinguished, Then cpu 200 is judged as colour killing pattern.If data preserve setting item 30 process select button 40 have selected pass, The setting item 33 distinguished in advance process select button 43 have selected pass, colour killing setting item 31 process select button 41 have selected pass, have selected out in the process select button 42 of setting item 32 distinguished, then cpu 200 is judged as distinguishing mould Formula.

If the select button 40 that processes of the setting item 30 preserving in data have selected out, in the prior setting item distinguished Mesh 33 process select button 43 have selected pass, the setting item 31 of colour killing process select button 41 have selected out, in area The process select button 42 of the setting item 32 dividing have selected pass, then cpu 200 is judged as being combined with the mould of reading and colour killing Formula.If the select button 40 that processes of the setting item 30 preserving in data have selected pass, in the prior setting item 33 distinguished Process select button 43 have selected passs, colour killing setting item 31 process select button 41 have selected out, differentiation The process select button 42 of setting item 32 have selected out, then cpu 200 is judged as being combined with the pattern of colour killing and differentiation.As The setting item 30 that fruit preserves in data process select button 40 have selected out, the prior setting item 33 distinguished process Select button 43 have selected pass, colour killing setting item 31 process select button 41 have selected out, distinguish setting item The process select button 42 of mesh 32 have selected out, then cpu 200 is judged as being combined with the pattern of reading, colour killing and differentiation.

If the select button 40 that processes of the setting item 30 preserving in data have selected pass, in the prior setting item distinguished Mesh 33 process select button 43 have selected out, the setting item 31 of colour killing process select button 41 have selected out, in area The process select button 42 of the setting item 32 dividing have selected pass, then cpu 200 is judged as being combined with prior differentiation and colour killing Pattern.If the select button 40 that processes of the setting item 30 preserving in data have selected out, in the prior setting item distinguished Mesh 33 process select button 43 have selected out, the setting item 31 of colour killing process select button 41 have selected out, in area Point the process select button 42 of setting item 32 have selected pass, then cpu 200 be judged as being combined with readings, differentiation in advance and The pattern of colour killing.If the select button 40 that processes of the setting item 30 preserving in data have selected pass, setting in prior differentiation Determine project 33 process select button 43 have selected out, the setting item 31 of colour killing process select button 41 have selected out, Have selected out in the process select button 42 of the setting item 32 distinguished, then cpu 200 is judged as being combined with prior differentiation, colour killing And the pattern distinguished.If the process select button 40 of the setting item 30 preserving in data have selected out, distinguishes prior The select button 43 that processes of setting item 33 have selected out, have selected in the process select button 41 of the setting item 31 of colour killing Open, have selected out in the process select button 42 of setting item 32 distinguished, then cpu 200 is judged as being combined with readings, prior The pattern of differentiation, colour killing and differentiation.

In the above description, by selecting to open or close setting processing select button 40,41,42, but and not only limit In this, open and close can also be shown as " process " or " not processed ".

In the figure 7, according to the order being processed from left to right arrange setting item 30 (data preservation), 31 (colour killings), 32 (differentiations), and in addition show setting item 33, but it is also possible to as shown in figure 9, aobvious according to the order arrangement being processed Show four setting items including the prior setting item 33 distinguished.Data preserves and prior differentiation is when reading first time Processed, therefore, in fig .9, data is preserved and the prior setting item 30,33 distinguished as parallel processing project And the display that is arranged above and below.By so arranging display setting item according to the order being processed, it is possible to achieve be easy to user The display understanding.

Colour killing pattern is illustrated.Colour killing pattern is not carry out image reading and carries out the pattern of colour killing process.Figure 10 It is the flow chart of colour killing pattern.If the process select button 40,41,42,43 by the setting item 30,31,32,33 of Fig. 7 Have selected colour killing pattern, then in 500, pickup roller 18 from paper supply tray 22 supply paper p, in 501, by paper p convey to First transport path 11.In 502, route diversion portion drive control part 207 drives route diversion portion 17, and conveying roller 16 is by paper P conveys to the second transport path 12 from the first transport path 11.In 503, colour killing portion 15 is carried out at colour killing to the image of paper p Reason.Afterwards, in 504, by conveying roller 16, paper p is conveyed to the first transport path 11 from the second transport path 12.505 In, by conveying roller 16 by paper p to the first paper discharge unit 19 or the second paper discharge unit 20 ADF, and tenth skill.

Read mode is illustrated.Read mode is not carry out image colour killing and carries out the mould of the reading process of image Formula.

Figure 11 is the flow chart of read mode.If the process select button by the setting item 30,31,32,33 of Fig. 7 40th, 41,42,43 have selected read mode, then, in 600, pickup roller 18 supplies paper p from paper supply tray 22, in 601, defeated Roller 16 is sent to convey paper p to the first transport path 11.In 602, by the first reading unit 13a and the second reading unit 13b reads the image of paper p, and the image being read is saved in storage part.In 603, conveying roller 16 is by paper p to One paper discharge unit 19 or the second paper discharge unit 20 ADF, cpu 200 tenth skill.

Differentiation pattern is illustrated.Differentiation pattern is not carry out image colour killing and carries out the area that can paper p recycle The pattern divided.

The flow chart that Figure 12 is to discriminate between pattern.If the process select button by the setting item 30,31,32,33 of Fig. 7 40th, 41,42,43 have selected differentiation pattern, then, in 700, pickup roller 18 supplies paper p from paper supply tray 22, in 701, defeated Roller 16 is sent to convey paper p to the first transport path 11.At 702, by the first reading unit 13a and the second reading unit 13b reads the image of paper p, and in 703, cpu 200 judges that can paper p recycle.If (703 be) can be recycled, Then in 704, conveying roller 16 by paper p to the first paper discharge unit 19 ADF, and tenth skill.If can not recycle (703 No), then in 705, conveying roller 16 by paper p to the second paper discharge unit 20 ADF, and end operation.

The pattern being combined with reading and colour killing is illustrated.Being combined with reading and the pattern of colour killing is not carry out area Office reason and carry out the pattern of colour killing process after reading image.

Figure 13 is the flow chart of the pattern being combined with reading and colour killing.If by the setting item of Fig. 7 30,31,32, 33 select button 40,41,42,43 that processes have selected the pattern being combined with reading and colour killing, then in 800, pickup roller 18 Supply paper p, in 801, conveying roller 16 conveys paper p to the first transport path 11.In 802, read single by first First 13a and the image of the second reading unit 13b reading paper p.In 803, route diversion portion drive control part 207 drives road Footpath changing unit 17, paper p is conveyed to the second transport path 12 by conveying roller 16 from the first transport path 11.In 804, colour killing portion The image of 15 couples of paper p carries out colour killing process.Afterwards, in 805, paper p is conveyed by conveying roller 16 from the second transport path 12 To the first transport path 11.In 806, paper p to the first paper discharge unit 19 or the second paper discharge unit 20 ADF, and is tied by conveying roller 16 Bundle operation.

The pattern being combined with colour killing and differentiation is illustrated.In being combined with the pattern of colour killing and differentiation, do not enter Reading process before row colour killing, and carry out, after colour killing is processed, the differentiation that can paper p recycle.

Figure 14 is the flow chart of the pattern being combined with colour killing and differentiation.If by the setting item of Fig. 7 30,31,32, 33 select button 40,41,42,43 that processes have selected the pattern being combined with colour killing and differentiation, then in 900, pickup roller 18 Supply paper p from paper supply tray 22, in 901, conveying roller 16 conveys paper p to the first transport path 11.In 902, road Footpath changing unit drive control part 207 drives route diversion portion 17, and paper p is conveyed to the by conveying roller 16 from the first transport path 11 Two transport paths 12.In 903, colour killing portion 15 carries out colour killing process to the image of paper p.Afterwards, in 904, conveying roller 16 Paper p is conveyed to the first transport path 11 from the second transport path 12.In 905, by the first reading unit 13a and Two reading units 13b read the image of paper p.In 906, cpu 200 judges that can paper p recycle.If can recycle (906 be), then in 907, conveying roller 16 by paper p to the first paper discharge unit 19 ADF, and tenth skill.If can not be sharp again With (906 no), then in 908, conveying roller 16 by paper p to the second paper discharge unit 20 ADF, and tenth skill.

The pattern being combined with reading, colour killing and differentiation is illustrated.In the mould being combined with reading, colour killing and differentiation In formula, after reading image, carry out colour killing process, then make a distinction process.

Figure 15 is the flow chart of the pattern being combined with reading, colour killing and differentiation.If by the setting item 30 of Fig. 7, 31st, 32,33 select button 40,41,42,43 that processes have selected the pattern being combined with reading, colour killing and differentiation, then 1000 In, pickup roller 18 supplies paper p, and in 1001, conveying roller 16 conveys paper p to the first transport path 11.In 1002, lead to Cross the first reading unit 13a and the second reading unit 13b reads the image of paper p.In 1003, route diversion portion drives control Portion 207 processed drives route diversion portion 17, and paper p is conveyed to the second transport path 12 by conveying roller 16 from the first transport path 11. In 1004, colour killing portion 15 carries out colour killing process to the image of paper p.

Afterwards, in 1005, paper p is conveyed to the first transport path 11 by conveying roller 16 from the second transport path 12.? The image of paper p in 1006, is read by the first reading unit 13a and the second reading unit 13b.In 1007, cpu 200 Judge that can paper p recycle.If (1007 be) can be recycled, in 1008, conveying roller 16 is by paper p to first row Paper portion 19 ADF, and tenth skill.If (1007 no) can not be recycled, in 1009, conveying roller 16 is by paper p to Two paper discharge unit 20 ADF, and tenth skill.

Prior differentiation pattern is illustrated.In prior differentiation pattern, do not carry out image colour killing, but according to lettering rate Judge that can paper p recycle.

Cpu 200 if it is determined that by the process select button of the setting item 30,31,32,33 of Fig. 7 40,41,42, 43 have selected prior differentiation pattern, then control pickup roller 18 to supply paper p from paper supply tray 22, and control conveying roller 16 to first Transport path 11 conveys paper p.Cpu200 is controlled, so that the first reading unit 13a and the second reading unit 13b read The image of paper p, and judge lettering rate.Afterwards, cpu 200, in the case of being judged as that lettering rate is less than threshold value, controls conveying , by paper p to the first paper discharge unit 19 ADF, in the case of being judged as that lettering rate is more than threshold value, control conveying roller 16 will for roller 16 Paper p is to the second paper discharge unit 20 ADF, and tenth skill.

In the pattern reading being combined with and distinguishing in advance, do not carry out image colour killing, but the image being read is protected Exist in storage part, judge that can paper p recycle according to lettering rate.If cpu200 by the setting item of Fig. 7 30,31, 32nd, 33 select button 40,41,42,43 that processes have selected to be combined with and reads and the prior pattern distinguished, then carry out above-mentioned Prior differentiation pattern in illustrated, the first reading unit 13a and the second reading unit 13b when reading image, by image It is saved in storage part, and judge lettering rate.Other actions are identical with prior differentiation pattern.

The pattern being combined with prior differentiation and colour killing is illustrated.In the pattern being combined with prior differentiation and colour killing In, according to lettering rate, can carry out paper p recycle judgement, when being judged as lettering rate is less than threshold value, carry out colour killing.

Cpu 200 if it is determined that by the process select button of the setting item 30,31,32,33 of Fig. 7 40,41,42, 43 have selected the pattern being combined with prior differentiation and colour killing, then control pickup roller 18 to supply paper p from paper supply tray 22, and control Conveying roller 16 processed conveys paper p to the first transport path 11.Cpu 200 is controlled, so that the first reading unit 13a and Two reading units 13b read the image of paper p, and judge lettering rate.Cpu 200 is the feelings of more than threshold value being judged as lettering rate Under condition, control conveying roller 16 by paper p to the second paper discharge unit 20 ADF, and tenth skill.

If it is determined that lettering rate is less than threshold value, then route diversion drive control part 207 drives route diversion portion to cpu 200 17, from conveying roller 16, paper p is conveyed to the second transport path 12 from the first transport path 11.Cpu 200 passes through colour killing portion 15 The colour killing that the paper p being transported to the second transport path 12 is carried out with image is processed.Cpu 200 passes through conveying roller 16 from the second conveying Path 12 conveys paper p to the first transport path 11, by paper p to the first paper discharge unit 19 or the second paper discharge unit 20 ADF, and ties Bundle action.

In the pattern being combined with reading, prior differentiation and colour killing, the image being read is saved in storage part, root Judge that can paper p recycle according to lettering rate, if lettering rate is less than threshold value, carry out colour killing process.Cpu 200 if it is determined that It is that the process select button 40,41,42,43 of setting item 30,31,32,33 by Fig. 7 have selected and is combined with reading, in advance Distinguish and colour killing pattern, then carry out combinations of the above prior distinguish and the pattern of colour killing in illustrated, first When reading unit 13a and the second reading unit 13b read image, image is saved in storage part, and judges lettering rate.Its His action is identical with the pattern being combined with reading, prior differentiation and colour killing.

The pattern being combined with prior differentiation, colour killing and differentiation is illustrated.Be combined with prior differentiation, colour killing and In the pattern distinguished, the judgement that can paper p recycle is carried out according to lettering rate, if it is determined that lettering rate is less than threshold value, Then carry out colour killing, and carry out the differentiation that can recycle of paper p.

Cpu 200 if it is determined that by the process select button of the setting item 30,31,32,33 of Fig. 7 40,41,42, 43 have selected the pattern being combined with prior differentiation, reading and colour killing, then control pickup roller 18 to supply paper from paper supply tray 22 P, controls conveying roller 16 to convey paper p to the first transport path 11.Cpu 200 is controlled so that the first reading unit 13a with And second reading unit 13b read the image of paper p, and judge lettering rate.Cpu 200 is more than threshold value being judged as lettering rate In the case of, control conveying roller 16 by paper p to the second paper discharge unit 20 ADF, and tenth skill.

If it is determined that lettering rate is less than threshold value, then route diversion drive control part 207 drives route diversion portion to cpu 200 17, from conveying roller 16, paper p is conveyed to the second transport path 12 from the first transport path 11.Cpu 200 passes through colour killing portion 15 The colour killing that the paper p being transported to the second transport path 12 is carried out with image is processed.Cpu 200 passes through conveying roller 16 from the second conveying Path 12 conveys paper p to the first transport path 11, and is read by the first reading unit 13a and the second reading unit 13b again Take the image of paper p.Cpu 200 judges that can paper p recycle.If can recycle, from conveying roller 16 by paper p to One paper discharge unit 19 ADF, and tenth skill.If can not recycle, there is conveying roller 16 by paper p to the second paper discharge unit 20 row Paper, and tenth skill.

It is being combined with reading, distinguishing in advance, in the pattern of colour killing and differentiation, the image being read be saved in storage part In, judge that can paper p recycle according to lettering rate, if lettering rate is less than threshold value, carries out colour killing process, and carry out colour killing Afterwards can recycle judgement.Cpu 200 is if it is determined that select to press by the process of the setting item 30,31,32,33 of Fig. 7 Button 40,41,42,43 have selected and is combined with reading, the pattern of differentiation, colour killing and differentiation in advance, then get in combinations of the above First distinguish, in the pattern of colour killing and differentiation explanation, figure is read by the first reading unit 13a and the second reading unit 13b During picture, image is saved in storage part, and judges lettering rate.Other actions be combined with prior differentiation, colour killing and differentiation Pattern identical.

When have selected the pattern being combined with reading, colour killing and differentiation, one by one during handling of paper p, the first reading unit 13a And second reading unit 13b interaction carry out for before colour killing, view data is deposited in advance data store image read Take and for judging whether normally to have carried out the image reading of colour killing after image colour killing.

Above-mentioned each pattern can be selected in the operating portion 210 of image erasing device 100, can select desired by user Pattern.The selection of each pattern is not limited in operating portion 210 in image erasing device 100 it is also possible in client pc 101 Operating portion 303 carry out.

Cpu 200 according to pattern, in the reading image of the first reading unit 13a and the second reading unit 13b and Colour killing portion 15, to during image colour killing, changes the transporting velocity of paper p.When colour killing portion 15 carries out colour killing process, if to be faster than The transporting velocity of fixing speed is conveyed, and can there is heater 205 can not apply enough heats to colorant, and cannot be normal Carry out the problem of colour killing process.On the other hand, reading part also due to part is different and maximum speed is different, but, at colour killing The highest transporting velocity of reason is compared, and highest transporting velocity during reading image is faster.Therefore, transporting velocity v1 when colour killing is processed Relation with transporting velocity v2 when reading is v1 < v2.

When therefore, in colour killing pattern, the integrated mode of reading and colour killing, it is combined with the pattern of colour killing and differentiation When, be combined with reading and colour killing and differentiation pattern when, transporting velocity v1 during colour killing and read when transporting velocity v2 Relation be v1 < v2.

In read mode and when distinguishing pattern, do not carry out conveying to colour killing portion 15, therefore, with reading part energy fully The regulation transporting velocity reading image is conveying paper p.

Image erasing device 100 as above passes through will carry out for making view data be deposited in data store in advance The reading part of image reading be set to the reading part carrying out for judging whether normally to have carried out the image reading of colour killing Same reading part is such that it is able to cut down cost.

Additionally, changing the transporting velocity of paper p by selection pattern or according to pattern, process time can be reduced.

3rd embodiment

The image erasing device of the 3rd embodiment shown in Figure 16 to Figure 20, is read out locating in multiple continuous modes Reason, colour killing process, differentiation are processed, and so that process is staggered corresponding to every paper, carry out parallel processing.In in figure, for first Embodiment identical structure division is labelled with same-sign.The arrow of in figure represents the direct of travel of paper p.

When the colour killing carrying out first paper p is processed, processed in the following order: by as the first of reading part Reading unit 13a and the second reading unit 13b are read out processing, and then carry out colour killing process by colour killing portion 15, again by First reading unit 13a and the second reading unit 13b are read out processing, and carry out judging that can the differentiation that recycle be processed. When paying close attention to a piece of paper and opening p, carry out and flow chart identical shown in Figure 12 is processed.

Hereinafter, the situation of three paper continuous processings that reading process, colour killing process, differentiation are processed is illustrated.Will Leading paper p is set as the first paper p1, after the first paper p1 the paper of conveying be set as in order the second paper p2, the Three paper p3.Supply the first paper p1 and be delivered to the first transport path 11, read by the first reading unit 13a and second single First 13b is read out processing (Fig. 4).

Then, as shown in figure 16, the first paper p1 is delivered to the second transport path 12 by conveying roller 16, right in colour killing portion 15 During image on paper p1 carries out colour killing process, pickup roller 18 supplies the second paper p2 from paper supply tray 22, and conveying roller 16 will Second paper p2 is delivered to the first transport path 11, by the first reading unit 13a and the second reading unit 13b on paper p2 Image be read out process.

Afterwards, as shown in figure 17, the first paper p1 is delivered to the first transport path 11, the first reading unit by conveying roller 16 Image on 13a and the second reading unit 13b reading paper p1, cpu200 makes a distinction process.In conveying roller 16 by paper To during the first paper discharge unit 19 or the second paper discharge unit 20 ADF, the second paper p2 is delivered to the second transport path to p1 by conveying roller 16 12, in colour killing portion 15, colour killing process is carried out to the image on paper p2.

And, as shown in figure 18, in conveying roller 16, second paper p2 is delivered to the second transport path 12, in colour killing portion 15 During carrying out colour killing process to the image on paper p2, pickup roller 18 supplies the 3rd paper p3, conveying roller 16 from paper supply tray 22 3rd paper p3 is delivered to the first transport path 11, by the first reading unit 13a and the second reading unit 13b to paper p3 On image be read out process.

Then, as shown in figure 19, the second paper p2 is delivered to the first transport path 11, the first reading unit by conveying roller 16 Image on 13a and the second reading unit 13b reading paper p2, cpu200 makes a distinction process.In conveying roller 16 by paper To during the first paper discharge unit 19 or the second paper discharge unit 20 ADF, the 3rd paper p3 is delivered to the second transport path to p2 by conveying roller 16 12, in colour killing portion 15, colour killing process is carried out to the image on paper p3.Afterwards, repeat to process as described above.

When repeating the above, it is read out in the following order processing.Carry out first reading process, second Reading process, the differentiation process of first, the reading process of the 3rd, second differentiation process, finally, carry out n-th -2 Differentiation processs, the reading process of n-th, the differentiation of (n-1)th process, the differentiation of n-th process.Wherein, n is integer.

Figure 20 represents processing sequence when processing four.Supply the first paper p1 in 1100, be read out in 1101 Process, be delivered to the second transport path 12 in 1102.Afterwards, carry out colour killing process in 1103, make a distinction in 1104 Process, carry out ADF in 1105.

In 1102, first paper p1 is conveyed the period to the second transport path 12, supply the second paper in 1106 P2, carries out the period of colour killing process in 1103 to the first paper p1, the second paper p2 is read out processing in 1107.? In 1104, first paper p1 is made a distinction with the period of process, conveys the second paper p2 to the second transport path in 1108 12, in 1105, first paper p1 is carried out with the period of ADF, in 1109, colour killing process is carried out to the second paper p2.Afterwards, In 1110, process is made a distinction to the second paper p2, carry out ADF in 1111.

In 1104, first paper p1 is made a distinction with process and the second paper p2 is conveyed defeated to second in 1108 Send the period in path 12, supply the 3rd paper p3 in 1112.First paper p1 is carried out with ADF and 1109 in 1105 In the second paper p2 carried out period of colour killing process, the 3rd paper p3 is read out processing in 1113.Right in 1110 Second paper p2 makes a distinction the period of process, in 1114, the 3rd paper p3 is delivered to the second transport path 12.1111 In the second paper p2 carried out period of ADF, in 1115, carry out colour killing process to the 3rd paper p3.Afterwards, right in 1116 3rd paper p3 makes a distinction process, carries out ADF in 1117.

In 1110, second paper p2 is made a distinction with process and in 1114, the 3rd paper p3 to be delivered to second defeated Send the period in path 12, supply the 4th paper p4 in 1118.Second paper p2 is carried out with ADF and 1115 in 1111 In the 3rd paper p3 carried out period of colour killing process, the 4th paper p4 is read out processing in 1119.Right in 1116 During 3rd paper p3 makes a distinction process, in 1120, the 4th paper p4 is delivered to the second transport path 12.In 1117 3rd paper p3 is carried out with the period of ADF, in 1121, colour killing process is carried out to the 4th paper p4.Afterwards, in 1122 Four paper p4 make a distinction process, carry out ADF in 1123.

When repeating the process of four, it is read out in the following order processing.I.e., according to the reading process of first, The reading process of second, the differentiation process of first, the reading process of the 3rd, the differentiation of second are processed, the 4th Reading process, the differentiation process of the 3rd, the order of the differentiation of the 4th are processed.

Above-mentioned each pattern can be selected in the operating portion 210 of image erasing device 100, can select desired by user Pattern.The selection of each pattern is not limited in operating portion 210 in image erasing device 100 it is also possible in client pc 101 Operating portion 303 carry out.

Cpu 200 according to tupe, to the first reading unit 13a and the second reading unit 13b, colour killing portion 15, with And route diversion portion 17 is controlled.In addition, when cpu 200 have selected the tupe not needing colour killing portion 15, being controlled So that not being delivered to colour killing portion 15 and discharging paper p.I.e., in read mode and differentiation pattern, it is controlled such that not It is delivered to the second transport path 12 and paper p is discharged.

According to pattern it is also possible to when the first reading unit 13a and the second reading unit 13b read image and disappear When color portion 15 carries out colour killing to image, change the transporting velocity of paper p.When colour killing portion 15 carries out colour killing process, if than fast Mode in the transporting velocity of regulation is conveyed, then can there is heater 205 can not apply enough heats to colorant, and no Method is normally carried out the problem of colour killing process.On the other hand, reading part also due to part is different and maximum speed is different, but, with The highest transporting velocity that colour killing is processed is compared, and highest transporting velocity during reading image is faster.For this reason, the conveying in colour killing portion 15 Speed v1 and reading part transporting velocity v2 relation be v1 < v2.

Therefore, in colour killing pattern, be combined with reading and colour killing pattern when, be combined with the pattern of colour killing and differentiation When, be combined with reading and colour killing and differentiation pattern when, transporting velocity v1 in colour killing portion 15 and the conveying in reading part The relation of speed v2 is v1 < v2.

In read mode and when distinguishing pattern, due to not conveyed to colour killing portion 15, therefore, in reading part with energy Enough regulation transporting velocities fully reading image are conveying paper p.

Image erasing device 100 as above passes through to carry out the reading for making the prior image reading retained of image Portion is set to same reading part with the reading part carrying out for judging whether normally to have carried out the image reading of colour killing, so as to Enough cut down cost.In addition, passing through selection pattern, process time can be reduced.

If additionally, reading part after carrying out the process of the first paper p1 to the second paper p2 process, can spend Time-consuming, but, in image erasing device 100 as above, to be entered in the way of process of staggering corresponding to every paper Row parallel processing is such that it is able to reduce process time.

The conveying of paper p when reading part reads image and when colour killing being carried out to image in colour killing portion, can also be changed Speed.When colour killing portion 15 carries out colour killing process, if with the transporting velocity conveying paper p faster than regulation transporting velocity, can There is a problem of that heater 205 can not apply enough heats to colorant and process it is impossible to be normally carried out colour killing.On the other hand, read Take portion also due to part is different and maximum speed part, but, compared with the highest transporting velocity processing with colour killing, read image When highest transporting velocity faster.Therefore, transporting velocity v1 during colour killing process and the relation of transporting velocity v2 when reading are v1<v2.

On the other hand, the transporting velocity when not carrying out colour killing process and being read out process it is not necessary that when making reading Transporting velocity v1 that v2 is carried out when colour killing is processed with colour killing portion 15 is identical, therefore passes through to enter in colour killing portion 15 with the speed of v1 >=v2 Row conveying, can make process high speed.

4th embodiment

The image erasing device 100 of the 4th embodiment is illustrated.In in figure, for identical with above-mentioned embodiment Structure division be labelled with same-sign.

Figure 21 is the structure chart of the image erasing device 100 in the 4th embodiment.First embodiment and second is in fact The colour killing portion 15 applying mode is located at the second transport path 12, and in the 4th embodiment, colour killing portion 15 is located at the first transport path 11, in the thin slice conveying direction downstream of reading part 13, between reading part 13 and branch components 17.

Cpu 200 transporting velocity v1 in colour killing portion 15 for the paper p is changed according to pattern and in the first reading unit 13a and The relation of transporting velocity v2 of the second reading unit 13b.In colour killing pattern, be combined with reading and colour killing pattern when, Transporting velocity v1 in colour killing portion 15 and reading unit 13a, 13b transporting velocity v2 relation be v1 < v2.

Additionally, when not carrying out the reading of colour killing process, distinguish pattern when it is not necessary that with colour killing portion 15 conveying speed V1 is equal for degree, therefore, compared with the speed of v1=v2 in the situation that colour killing portion 15 is conveyed, can make process high speed. And, if it is possible to make the transporting velocity v1 high speed in colour killing portion 15 compared with reading unit 13a, 13b, then can also set It is set to v1 > v2.

Thus, in read mode, distinguish pattern when, transporting velocity v1 in colour killing portion 15 and reading unit 13a, The relation of transporting velocity v2 of 13b is set as v1 >=v2.Additionally, transporting velocity v1 in colour killing portion 15 and reading unit 13a, The relation of transporting velocity v2 of 13b is it is also possible to change with the temperature in colour killing portion 15.

When being combined with the pattern of colour killing and differentiation, be combined with reading and colour killing and differentiation pattern when, by paper Open p and be delivered to the second transport path 12 from the first transport path 11, and convey again to the first conveying from the second transport path 12 Path 11.Therefore, when paper p carries out conveying for the first time in the first transport path 11, transporting velocity v1 in colour killing portion 15 and It is set as v1 < v2 in the relation of transporting velocity v2 of reading unit 13a, 13b.Paper p is defeated again via the second transport path 12 When delivering to the first transport path 11, transporting velocity v3 in colour killing portion 15 and transporting velocity v4 in reading unit 13a, 13b Relation is set as v3 >=v4.

Image erasing device 100 as above passes through to carry out the reading for making the prior image reading retained of image Portion is set to same reading part with the reading part carrying out for judging whether normally to have carried out the image reading of colour killing, so as to Enough cut down cost.

Additionally, changing the transporting velocity of paper p by the selection of pattern or according to pattern, it is possible to reduce process time. And, because the first transport path 11 has colour killing portion 15, in colour killing pattern and in the mould being combined with reading and colour killing During formula, paper p can need not be processed in transport path 12 conveying, therefore can reduce process time.

5th embodiment

In the 5th embodiment, the first transport path 11 of image erasing device 100 in the first reading unit 13a and The upstream of the second reading unit 13b has colour killing portion 15.Image erasing device 100 has multiple tupes, according to pattern Change the relation of transporting velocity v1 in colour killing portion 15 and transporting velocity v2 in reading part 13.In in figure, for real with first Apply mode identical structure division and be labelled with same-sign.

Figure 22 is the structure chart of image erasing device 100 in the 5th embodiment.First embodiment, second embodiment And the 3rd embodiment be the circulus with the second transport path 12, in contrast, the 5th embodiment is not from One transport path 11 is branched off, and the circulus converged with the first transport path 11 again.

Cpu 200 changed according to pattern paper p transporting velocity v1 in colour killing portion 15 and the first reading unit 13a with And second reading unit 13b transporting velocity v2 relation.In colour killing pattern, be combined with reading and colour killing pattern when, Be combined with colour killing and differentiation pattern when, be combined with reading and colour killing and differentiation pattern when, defeated in colour killing portion 15 Send speed v1 and be set as v1 < v2 in the relation of transporting velocity v2 of reading unit 13a, 13b.

Additionally, when not carrying out the read mode of colour killing process, distinguish pattern when, due to there is no need with colour killing portion 15 Transporting velocity v1 equal, compared with the speed of v1=v2 in the situation that colour killing portion 15 conveys, process high speed can be made.And And, if it is possible to make the transporting velocity v1 high speed in colour killing portion 15 compared with reading unit 13a, 13b, then can also set For v1 > v2.Thus, in read mode, distinguish pattern when, transporting velocity v1 in colour killing portion 15 and, reading unit 13a, The relation of transporting velocity v2 of 13b is set as v1 >=v2.

Additionally, the relation of transporting velocity v1 in colour killing portion 15 and transporting velocity v2 in reading unit 13a, 13b, also may be used To change with the temperature in colour killing portion 15.Colour killing is applied with the colour killing portion 15 of heat when processing, that is, turn off thermal source, temperature Will not reduce at once.For example, after carrying out colour killing process to paper p in colour killing pattern, certain interval of time does not just pass through to read When delivery formula is processed, there is the situation of the temperature in colour killing portion 15 not reduction completely to paper p.Convey paper in this condition Open p, if heat is applied to colorant, can there is printing by colour killing.

Therefore, the heater 205 in colour killing portion 15 when being processed, is detected by read mode using temperature detecting part 212 Temperature, if the temperature in colour killing portion is below setting, transporting velocity v1 in colour killing portion 15 and reading unit 13a, The relation of transporting velocity v2 of 13b is set as v1=v2.On the other hand, if the temperature in colour killing portion 15 is higher than setting, Transporting velocity v1 in colour killing portion 15 and be set as v1 in the relation of transporting velocity v2 of reading unit 13a, 13b > v2.

Image erasing device 100 as above passes through to carry out the reading for making the prior image reading retained of image Portion is set to same reading part with the reading part carrying out for judging whether normally to have carried out the image reading of colour killing, so as to Enough cut down cost.

Additionally, changing the transporting velocity of paper p by the selection of pattern or according to pattern, it is possible to reduce process time. And, in the case that the temperature in colour killing portion 15 does not reduce completely, by by transporting velocity v1 in colour killing portion 15 with reading The relation taking transporting velocity v2 of unit 13a, 13b is set as v1 > v2, accelerate transporting velocity in colour killing portion 15 such that it is able to Prevent the colour killing printed.

In the explanation of above-mentioned embodiment, describe " at colour killing of color of image of elimination as image erasing device Reason ", but also comprise to eliminate the meaning of image.Erasing device described in present embodiment is not limited in eliminating by heat The device of color of image.For example, it is also possible to be the device of the color of image or the elimination being eliminated by the irradiation of light on thin slice It is formed at the device of the image on special thin slice.Or can also be the device for removing the image on (elimination) thin slice, be Thin slice is enable to recycle, as long as the structure that image cannot be seen can be made.

Although having been described for some embodiments of the present invention, these embodiments are only that the present invention is shown Example property explanation, and the scope being not meant to limit the present invention.These new embodiments can by other various forms Lai Implement, under the premise of without departing from the spirit of the present invention, various omissions, substitutions and changes can be carried out.These embodiments or Its mode of texturing, its invention scope is both contained among the spirit of the present invention, and sending out described in claims of the present invention Bright and its equivalency range covers these embodiments or its deformation.

Claims (8)

1. a kind of image erasing device is it is characterised in that include:
Sheet feed section, it supplies recording medium;
Paper discharge unit, it discharges recording medium;
First transport path, it forms from described sheet feed section towards the transport path of described paper discharge unit;
Reading part, it is configured at described first transport path, for the image of reading & recording medium;
Second transport path, the downstream branch of its described reading part from described first transport path out, and with described first The upstream of the described reading part of transport path is converged;
Colour killing portion, it is configured at described second transport path, for carrying out colour killing to the image of described recording medium;
Switching part, it configures in the downstream of described reading part, for the path conveying described recording medium is switched to described row Paper portion or described colour killing portion;And
Control unit, it controls the transport path of described recording medium by described switching part, judges to be read by described reading part Can described recording medium recycle,
When processing multiple described recording mediums, carried out in the way of staggering by every recording medium and column processing,
The reading order of described control unit be first reading process, the reading process of second, first differentiation process, The reading process of the 3rd, second differentiation process, finally, carry out the n-th -2 differentiation process, the reading process of n-th, The differentiation process distinguishing process and n-th of (n-1)th.
2. image erasing device according to claim 1 it is characterised in that
Also there is the storage part of the image that storage is read by described reading part.
3. image erasing device according to claim 1 and 2 it is characterised in that
Described reading part enters the image reading that behavior preserves image before carrying out image colour killing by described colour killing portion.
4. image erasing device according to claim 1 and 2 it is characterised in that
Image before the colour killing read by described reading part for the described control unit judges that described recording medium can no utilization again.
5. image erasing device according to claim 4 it is characterised in that
Described control unit when the image before the colour killing read by described reading part judges that described recording medium can recycle, Described recording medium is delivered to described second transport path, and executes colour killing process by described colour killing portion, based on by described reading The image after the colour killing of portion's reading is taken to judge that can described recording medium recycle.
6. image erasing device according to claim 1 it is characterised in that
Described reading part be alternately preserve before image colour killing is carried out by described colour killing portion the image reading of image and be The image reading that can recycle is differentiated after image colour killing.
7. a kind of image erasing method is it is characterised in that include:
Supply recording medium,
Read the image of described recording medium by the reading part that the first transport path has,
By the institute out and with described first transport path for the downstream branch of the described reading part from described first transport path State the colour killing portion that the second transport path upstream of reading part converging has and colour killing carried out to image,
Described recording medium is delivered to the upstream of the described reading part of described first transport path from described second transport path, And
By the described reading part of described first transport path, the described recording medium having been eliminated image by described colour killing portion is entered Row reads, and can judgement recycle, and discharges,
When processing multiple described recording mediums, carried out in the way of staggering by every recording medium and column processing,
The reading order of described image erasing method be first reading process, the reading process of second, the area of first Office reason, the reading process of the 3rd, second differentiation process, finally, carry out the n-th -2 differentiation process, the reading of n-th Take process, the differentiation process distinguishing process and n-th of (n-1)th.
8. a kind of image storage system is it is characterised in that include:
Image erasing device any one of claim 1 to 6;And
Electronic equipment or server, it has the storage part of the image that storage is read by described reading part.
CN201510658129.6A 2011-06-02 2012-04-27 Image erasing apparatus and image erasing method CN105150690B (en)

Priority Applications (17)

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US201161492805P true 2011-06-02 2011-06-02
US61/492,805 2011-06-02
US201161494850P true 2011-06-08 2011-06-08
US201161494856P true 2011-06-08 2011-06-08
US201161494847P true 2011-06-08 2011-06-08
US61/494,850 2011-06-08
US61/494,856 2011-06-08
US61/494,847 2011-06-08
US201161495274P true 2011-06-09 2011-06-09
US61/495,274 2011-06-09
JP2011-208903 2011-09-26
JP2011208903A JP5458077B2 (en) 2011-06-02 2011-09-26 Erasing device, image storage system, and image erasing method
JP2011-211811 2011-09-28
JP2011211811 2011-09-28
JP2011241977A JP5451717B2 (en) 2011-06-08 2011-11-04 Erasing device and image erasing method
JP2011-241977 2011-11-04
CN201210130392.4A CN102809914B (en) 2011-06-02 2012-04-27 image erasing device and image erasing method

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US5545381A (en) * 1991-01-31 1996-08-13 Ricoh Company, Ltd. Device for regenerating printed sheet-like recording medium
JP3093706B2 (en) * 1998-01-05 2000-10-03 株式会社リコー Recording medium reproducing apparatus and image forming system using the same
JP2005066901A (en) * 2003-08-20 2005-03-17 Ricoh Co Ltd Image forming apparatus, image forming system, computer program, and recording medium
JP2005135058A (en) * 2003-10-29 2005-05-26 Okutorii:Kk Processor for rewrite card
CN101456280A (en) * 2007-12-13 2009-06-17 株式会社东芝 Image forming apparatus and image erasing apparatus
US8538317B2 (en) * 2008-11-07 2013-09-17 Kabushiki Kaisha Toshiba Image elimination apparatus, image eliminating method and image forming apparatus
US8237758B2 (en) * 2009-02-05 2012-08-07 Kabushiki Kaisha Toshiba Image erasing apparatus
US8284221B2 (en) * 2009-05-14 2012-10-09 Kabushiki Kaisha Toshiba Erasing device, image forming apparatus, and erasing method
US8412091B2 (en) * 2009-06-19 2013-04-02 Kabushiki Kaisha Toshiba Image erasing apparatus and method of carrying recording medium in image erasing apparatus
US8489010B2 (en) * 2009-08-04 2013-07-16 Kabushiki Kaisha Toshiba Image delete apparatus and recording medium carrying method of image delete apparatus

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