CN101456280A - Image forming apparatus and image erasing apparatus - Google Patents
Image forming apparatus and image erasing apparatus Download PDFInfo
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- CN101456280A CN101456280A CNA2008101881148A CN200810188114A CN101456280A CN 101456280 A CN101456280 A CN 101456280A CN A2008101881148 A CNA2008101881148 A CN A2008101881148A CN 200810188114 A CN200810188114 A CN 200810188114A CN 101456280 A CN101456280 A CN 101456280A
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Abstract
The invention provides an image forming apparatus and a paper treatment method, image eliminating device. Wherein, the image forming apparatus picks up each one of sheets stacked in a tray, allows a detecting sensor to detect whether a mark indicating a reusable sheet is assigned to the picked-up sheet, and cumulates the sheet in which the mark is not detected by the detecting sensor in a cumulative unit. The image forming apparatus erases a color of an image forming material by heating the sheet of which the mark is detected by the detecting sensor and receives the sheet of which the image forming material is erased in a sheet cassette. The image forming apparatus forms an image with the image forming material erasable by applying heat to the sheet received in the sheet cassette.
Description
Technical field
The present invention relates to utilize the image processing system of eliminable Image forming material formation image and the image eraser of the image that elimination utilizes eliminable Image forming material formation etc.
Background technology
At present, variety of ways such as electrofax mode, ink-jetting style, heating recording mode, thermal transfer mode are arranged as the printing type in the printer.In recent years, in order to reduce the discharge rate of environmental pressure or reduction carbon dioxide, proposed employed paper in the printer is reused (reuse: method recycling).For example in Japanese patent laid-open 06-155906, proposed to use and to have utilized heat to come the thin slice of color development or decolouring, repeatedly rewritten the method for image.And, in Japanese patent laid-open 11-268409, proposed to eliminate toner that utilization can decolour and be printed on image on the paper, to reuse the method for this paper by heat.And, in Japanese patent laid-open 10-88046, proposed to eliminate ink that utilization can decolour and be printed on image on the paper, to reuse the method for this paper by heat.
On the other hand, in actual environment for use such as office, printed the paper (paper of not reproducible utilization) of indelible normal image and but to have printed the situation that the paper (paper that can reuse) of removal of images mixes a lot.In this case, need reliably the processing of classifying of the paper of not reproducible utilization and the paper that can reuse.For example, the paper error of not reproducible utilization ground is used as under the situation that the paper that can reuse handles, probably under the situation of not eliminating the image on this paper, other images in the printing.At this moment, overstriking has a plurality of images on this paper, therefore, can not use as file.Promptly, need to imagine in actual environments for use such as office the very high situation of possibility that the paper of not reproducible utilization and the paper that can reuse mix and use.
And, at present,, generally be to utilize heat to eliminate image on the paper as the mode of recycling paper.In this mode, image is eliminated mechanism and is made of warm-up mill and temperature-sensitive rod etc.But above-mentioned elimination mechanism is used for the heat of removal of images immediately for the suggested paper that reuses of user is paid, and needs to keep waste heat at ordinary times.In such operational mode, can waste a lot of energy.And in thermal head, owing to rub on the paper face, ink or toner etc. cause eliminating performance and reduce significantly attached on the head.
The purpose of a mode of the present invention provides the image processing system of the paper that can prevent to use mistakenly recycling.And the purpose of a mode of the present invention provides the image eraser that power consumption is low and performance degradation is few.
Summary of the invention
According to an aspect of the present invention, its purpose is to provide a kind of image processing system that prevents to use mistakenly the paper of recycling.And in one aspect of the invention, its objective is provides the image eraser that power consumption is low and performance degradation is few.
Image processing system as one aspect of the present invention comprises: pallet, place paper; Detecting sensor detects paper on the above-mentioned pallet and whether has been paid the mark that expression is the paper that can reuse; Collection unit is collected the paper that does not detect above-mentioned mark by above-mentioned detecting sensor; Decolouring portion decolours to Image forming material, and this Image forming material is attached to detecting by above-mentioned detecting sensor on the paper of above-mentioned mark; Carton is taken in the paper that above-mentioned Image forming material has been carried out decolouring by above-mentioned decolouring portion; Image forming part makes above-mentioned Image forming material attached on the paper that is incorporated in the above-mentioned carton and form image.
Image processing system as one aspect of the present invention comprises: pallet, place paper; Detecting sensor detects paper on the above-mentioned pallet and whether has been paid the mark that expression is the paper that can reuse; Collection unit is collected the paper that does not detect above-mentioned mark by above-mentioned detecting sensor; Carton is taken in the paper that detects above-mentioned mark by above-mentioned detecting sensor; Decolouring portion decolours to the Image forming material that can decolour, and this Image forming material is attached on the paper that takes out from above-mentioned carton; And image forming part makes above-mentioned Image forming material attached on the paper that above-mentioned Image forming material has been carried out decolouring by above-mentioned decolouring portion and form image.
Image eraser as one aspect of the present invention comprises: thermal source, be used to add the paper that the heat utilization Image forming material forms image, and described Image forming material can decolour by heating; Conveyer belt provides the heat from described thermal source, and utilizes the heat that is provided by described thermal source, the paper that heating is transferred under contact condition; Carton, take in provide by described conveyer belt, be used to from the heated paper of the heat of described thermal source.
As the employed paper object processing method of the image processing system of one aspect of the present invention, comprising: detect on paper, whether to have been paid the mark that expression is the paper that can reuse; The paper that does not detect described mark is collected in collection unit; To decolouring attached to the Image forming material on the paper that detects described mark; The paper that described Image forming material has been decoloured is accommodated in the carton; And make described Image forming material attached on the paper that is accommodated in the described carton and form image.
Other purpose of the present invention and advantage will be set forth in the following description, and partly will become apparent from this description, maybe can understand by implementing the present invention.Objects and advantages of the present invention can realize and obtain by the means hereinafter specifically noted and combination thereof.
Description of drawings
The accompanying drawing that is incorporated in the specification and constitutes a specification part shows embodiments of the invention, and describe with the above generality that provides and below the detailed description one that provides to embodiment be used from and explain principle of the present invention.
Fig. 1 is the figure that first structure example of image processing system is shown;
Fig. 2 is the figure that first structure example of image processing system is shown;
Fig. 3 is the flow chart that is used to illustrate the action example in the recycling handling part;
Fig. 4 is the figure that second structure example of image processing system is shown;
Fig. 5 is the figure that second structure example of image processing system is shown;
Fig. 6 is the figure that the 3rd structure example of image processing system is shown;
Fig. 7 is the figure that the 3rd structure example of image processing system is shown;
Fig. 8 is the figure that the 4th structure example of image processing system is shown;
Fig. 9 is the figure that the 4th structure example of image processing system is shown;
Figure 10 is the flow chart of action example of printer that is used to illustrate the image processing system of the 4th structure example;
Figure 11 is the flow chart of action example of recycling handling part that is used to illustrate the image processing system of the 4th structure example;
Figure 12 is the figure that the structure example of the image processing system that utilizes special black franking is shown;
Figure 13 is the figure that first structure example of eliminating mechanism is shown;
Figure 14 is the figure that the structure example of the conveyer belt that is used for elimination mechanism shown in Figure 13 is shown;
Figure 15 is the figure that second structure example of eliminating mechanism is shown; And
Figure 16 is the figure that the structure example of the conveyer belt that is used for elimination mechanism shown in Figure 15 is shown.
The specific embodiment
Below, with reference to accompanying drawing, embodiment is elaborated.
At first, first structure example to the related image processing system of present embodiment describes.
Fig. 1 and Fig. 2 show first structure example of image processing system 1A.Image processing system 1A illustrated in figures 1 and 2 comprises carton 10, collection unit 11, the 12A of printing portion, discharge tray 14, paper supply tray 16 and recycling handling part 18 etc.
Above-mentioned carton 10 is the boxes that are used to take in paper.The paper sheet for printing P that carton 10 keeps by above-mentioned printer 12A print image.Above-mentioned collection unit 11 is collected the paper of not reusing (recycling).Above-mentioned printer 12A forms image on paper P.In first structure example illustrated in figures 1 and 2, above-mentioned printer 12A is an ink-jet printer.Above-mentioned printer 12A is a color printer.Above-mentioned discharge tray 14 keeps having been undertaken by printer 12A the paper of print processing.
Above-mentioned paper supply tray 16 is paper maintaining parts, keeps becoming the paper of the object that the recycling of above-mentioned recycling handling part 18 handles.Also the paper of the paper that can reuse and not reproducible utilization can be mixed and be placed on the above-mentioned paper supply tray 16.In this case, the user need not consider whether can reuse, and is placed on the paper supply tray 16 as long as will print the paper that finishes.The paper of 18 pairs of paper that can reuse of above-mentioned recycling handling part and not reproducible utilization is classified.Above-mentioned recycling handling part 18 also has eliminates the function that is printed on the image on the paper that can reuse.In this case, the function of above-mentioned recycling handling part 18 performance image erasers.
Below, the structure of above-mentioned printer 12A is elaborated.
As depicted in figs. 1 and 2, above-mentioned printer 12A comprise paper feed roller 102, conveying roller to 103, the contraposition roller to 104, driven voller 105, driven roller 106, conveyer belt 107, by pressure roller 108, ink gun 109 (109Y, 109M, 109C, 109Bk), conveying roller to 110 etc.
The paper P that above-mentioned paper feed roller 102 will remain in the carton 10 takes out one by one.Above-mentioned paper feed roller 102 will be transported to from the paper P that carton 10 takes out conveying roller to 103 and the contraposition roller to 104.Above-mentioned contraposition roller is transported to paper P on the conveyer belt 107 with predetermined timing 104.Utilize driven roller 106 and driven voller 105 to pay said conveyer belt 107 tension force.Said conveyer belt 107 is driven along with the rotation of driven roller 106.Above-mentioned by pressure roller 108 with paper P by being pressed on the conveyer belt 107.
Above-mentioned conveying roller 107 forms porose with the interval of regulation on the surface.In the inboard of said conveyer belt 107, be provided with the not shown negative pressure chamber that not shown fan connects, this not shown fan is used to make paper P to be adsorbed on conveyer belt 107.Paper P is attracted on the said conveyer belt 107, is transferred simultaneously.
Above-mentioned ink gun group 109 is made of ink gun 109Y, ink gun 109M, ink gun 109C and ink gun 109Bk.Each ink gun 109Y, 109M, 109C and 109Bk set gradually along conveyer belt 107.For example, in example illustrated in figures 1 and 2, the throughput direction of conveyer belt 107 conveyance of sheets P begins to be arranged in order ink gun 109Y, 109M, 109C and 109Bk from upstream side relatively.
Above-mentioned ink gun 109Y, 109M, 109C and 109Bk form versicolor image respectively on paper.Ink gun 109Y, 109M, 109C discharge the ink of yellow composition on the corresponding coloured image, magenta composition, blue-green composition respectively.Above-mentioned ink gun group 109 is by being printed on versicolor image on the paper repeatedly, thereby forms coloured image on paper.
Above-mentioned conveying roller will be expelled to discharge tray 14 by the paper that above-mentioned ink gun group 109 has printed image to 110.
And, in the use among the printer 12A of the ink of stating eliminated, when being printed on image on the paper, also print expression and be the information of the paper that can reuse.Being used to represent to be the information of the paper that can reuse, is the information that is detected by detecting sensor 123 described later.For example, above-mentioned expression is that the information of the paper that can reuse is the mark that is printed under given conditions on the paper.In this case, above-mentioned printer 12A is printed on above-mentioned mark on this paper when being printed on image on the paper at every turn.But, also can be the mode of on paper, paying above-mentioned mark in advance.In this case, in above-mentioned printer 12A, can not print the processing of above-mentioned mark.
Below, the employed Image forming material of above-mentioned printer 12A is described.
In above-mentioned printer 12A, the ink (decolouring ink) of the Image forming material of the characteristic of decolouring in case the use conduct has the set point of temperature of being heated to.The ink that above-mentioned printer 12A uses is not limited to specific material, gets final product so long as be heated to the ink that set point of temperature just decolours.In addition, to can be used as that the Image forming material that ink uses is opened the 2007-212613 communique the Japan Patent spy, the Japan Patent spy opens 2007-90704 communique or No. 3711017 communiques of patent etc. open for above-mentioned printer 12A.
For example, the basis of Image forming materials such as ink that can decolour or toner can be made of colour generation compound, developer, adhesive resin etc.Such Image forming material is owing to be subjected to the effect of developer in advance, and the colour generation compound carries out color development, but so user's identification colors.If the Image forming material under the state behind the color development is heated, then adhesive resin is softening, mainly is that developer moves to the surface from the inside of adhesive resin easily, moves in paper easily and diffusion.Therefore, the colour generation compound no longer is subjected to the effect of developer, and the colour generation compound decolours, can not identify color as Image forming material.
The colour generation compound is the precursor compound that is used to form the pigment of chromophore images such as literal or figure.The colour generation compound preferably uses colourless auramine class, diaryl phthalide-type (ジ ア リ-Le Off リ De
), poly-aryl methyl alcohol class (Port リ ア リ-Le カ Le PVC ノ-Le
), electron repelling organic matter such as acyl group auramine class, aryl auramine class, rhodamine B lactams, indoles order class, spiro-pyrans class, Material of Fluoran.
Developer is by making the compound of colour generation compound color development with the interaction (mainly being giving and accepting of electronics or proton) of colour generation compound.Developer preferably uses phenols, phenol metallic salt, carboxylic acid metal's salt, benzophenone, sulfonic acid, sulfonate, phosphoric acid class, phosphate metal salt, acid phosphoric acid ester, acid phosphoric acid ester metallic salt, phosphorous acid class, phosphorous acid metallic salt etc.
And adhesive resin is the material that colour generation compound and developer are disperseed.On the other hand, be to have in when heating and colour generation compound to mix, and have the material with the characteristic of the no compatibility of developer.
Use the above-mentioned ink that can eliminate (decolouring) by heat to form the printer of image, need be designed to when carrying out this print processing, ink not applied and be higher than the temperature of eliminating temperature as Image forming material.If the temperature in the printer is higher than the elimination temperature, then might ink go forward to decolour being printed to paper.On paper, can not form normal image certainly under such situation.And, consider the energy consumption of printer itself, preferably the elimination temperature with ink is set at low temperature as much as possible.Therefore, in printer, need make an effort raises with the temperature that prevents from as much as possible to be applied on the ink.
Consider the problems referred to above, ink-jet printer need be designed in printer, not apply and be higher than the temperature of eliminating temperature to ink.For example, in ink-jet printer, preferably use the lettering printhead of piezoelectric type as ink gun.And, also can heat sink (not shown) be set in printhead portion.Suppose in the ink-jet printer shown in Fig. 1, Fig. 2 (or Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 12) etc., to use the piezoelectric print head that is provided with heat sink.For example, so that the elimination temperature of ink is the modes of 70 degree carries out under the situation of material design, ink-jet printer is designed to prevent reliably that ink temperature is higher than 60 degree on printhead.By heat sink etc. is set, can easily realize such design on piezoelectric print head.
Below, above-mentioned recycling handling part 18 is described.
In addition, in the present embodiment, paper supply tray 16 that use the to place paper mode as the paper maintaining part is described, this paper maintaining part keeps handling as recycling the paper of object.But,, be not limited to place the paper supply tray 16 of paper as the paper maintaining part that keeps paper.For example, the paper maintaining part also can be to be in the parts of taking under the state of setting in that plurality of sheets of paper is opened.
Above-mentioned recycling handling part 18 have pickup roller 121, conveying roller to 122, detecting sensor 123, transport path switching mechanism 124, eliminate mechanism 125, paper and set up an organization 126 and paper collecting mechanism 127.
Above-mentioned pickup roller 121 one by one is taken into recycling handling part 18 with the paper on the paper supply tray 16.For example, in a single day the sensor of above-mentioned paper supply tray 16 detects paper, and then above-mentioned pickup roller 121 has been rubbed the paper on the above-mentioned paper supply tray 16 one by one with the hands.The paper that above-mentioned pickup roller 121 will have been rubbed with the hands is taken in the recycling handling part 18.Above-mentioned conveying roller is carried the paper of pickup roller 121 supplies 122 to detecting sensor 123.
Above-mentioned detecting sensor 123 judges that paper are the paper that can reuse the paper of (but removal of images) or not reproducible utilization (can not removal of images).Above-mentioned detecting sensor 123 detects whether the expression paper is the information that can reuse.For example, above-mentioned detecting sensor 123 detects the mark that whether has regulation at the assigned position of paper.In this case, above-mentioned detecting sensor 123 is that scanner and test section constitute, and this scanner is used to read the image of assigned position, and this test section detects the mark of regulation from the image that scanner read.Recycling about the pairing paper of testing result of above-mentioned detecting sensor 123 is judged, will be elaborated in the back.
Above-mentioned transport path switching mechanism 124 is based on the testing result of above-mentioned detecting sensor 123, and conversion is used to carry the transport path of this paper.For example, judge it is under the situation of the paper that can reuse in above-mentioned detecting sensor 123, shown in the arrow among Fig. 1, above-mentioned transport path switching mechanism 124 conversion transport paths are so that carry this paper to above-mentioned elimination mechanism 125.
And under the situation of the paper that above-mentioned detecting sensor 123 judgements are not reproducible utilizations, shown in the arrow among Fig. 2, above-mentioned transport path switching mechanism 124 conversion transport paths are so that carry this paper to above-mentioned collection unit 11.In this case, above-mentioned collection unit 11 is collected not reusable, as should to carry out waste treatment paper.
In addition, in above-mentioned collection unit 11, also can be provided for pulverizing the pulverizer of paper.In this case, above-mentioned collection unit 11 also can utilize pulverizer to pulverize the paper that transports, and collects the scraps of paper of pulverizing.
The image that above-mentioned elimination mechanism 125 is eliminated on the paper.Above-mentioned elimination mechanism heats paper is so that for example reach elimination temperature as the ink of Image forming material.By above-mentioned elimination mechanism 125, can be eliminated image eliminating the paper that heats under the temperature.Above-mentioned paper sets up an organization 126 paper sheet delivery that will eliminate image by above-mentioned elimination mechanism 125 to carton 10 and take in.At this, carton 10 is to take in the box that utilizes printer 12A to print the paper of processing.Promptly, in above-mentioned image processing system 1, will carry out paper that the image recycling handles as paper sheet for printing by above-mentioned recycling handling part 18, can reuse.
Below, the action in the recycling handling part 18 of said structure is described.
Fig. 3 is the flow chart that is used to illustrate the action example in the above-mentioned recycling handling part 18.In addition, mainly control respectively moving in the recycling handling part 18 described later by not shown control part.
Detected paper (ACT11: be) if detect the sensor (not shown) that is arranged on the paper on the above-mentioned paper supply tray 16, then above-mentioned pickup roller 121 is taken into the paper on the above-mentioned paper supply tray 16 in the recycling handling part 18 (ACT12) one by one.Above-mentioned conveying roller is carried (ACT13) to 122 paper that above-mentioned pickup roller 121 is taken into to detecting sensor 123.Above-mentioned detecting sensor 123 is represented the information (ACT14) that whether can reuse to 122 note detection of carrying from conveying roller.For example, above-mentioned detecting sensor 123 detects the mark that whether has regulation at the assigned position of paper.Judgement about the recycling of the pairing paper of testing result of above-mentioned detecting sensor 123 will be elaborated in the back.
Judge by recycling based on the testing result of above-mentioned detecting sensor 123, when judging that this paper is not (ACT15: not) under the situation of the paper that can reuse, as shown in Figure 2, above-mentioned transport path switching mechanism 124 conversion transport paths are so that carry (ACT16) with this paper to above-mentioned collection unit 11.This paper of carrying under this state is collected in above-mentioned collection unit 11 (ACT17).
And, judge by recycling based on the testing result of above-mentioned detecting sensor 123, when judging that this paper is under the situation of the paper that can reuse (ACT15: be), as shown in Figure 1, above-mentioned transport path switching mechanism 124 conversion transport paths are so that carry (ACT18) with this paper to above-mentioned elimination mechanism 125 and carton 10 sides.This paper of carrying under this state is transported to above-mentioned elimination mechanism 125.The image (ACT19) that above-mentioned elimination mechanism 125 is eliminated on the paper that transports.Promptly, above-mentioned elimination mechanism 125 is in order to decolour and heating paper to lip-deep image, is higher than the elimination temperature so that paper surface reaches.Paper 126 grades that set up an organization will have been implemented to be received into carton 10 (ACT20) based on the elimination sheet processed of above-mentioned elimination mechanism 125.
As the result of above-mentioned a series of processing, the paper that should reuse processing that is placed on the pallet has been carried out eliminating processing, and be accommodated in the carton, the paper that should not reuse that is placed on the pallet is collected in collection unit 11.
As mentioned above, in above-mentioned image processing system, the paper that is placed on the paper supply tray is one by one judged whether and can reuse.In above-mentioned image processing system, the detected paper that reuses is taken in as paper sheet for printing.Above-mentioned image processing system is taken in as discarded the paper of detected not reproducible utilization with paper.Even under the paper of paper that the user can reuse and not reproducible utilization mixed the situation on the paper supply tray of being placed on, above-mentioned image processing system also can be distinguished the paper that can reuse like this.Consequently, even the occupation mode that the paper of paper that can reuse and not reproducible utilization mixes also can suitably be handled the paper that can reuse and the paper of not reproducible utilization.For example, placed under the situation on the paper supply tray even will print the paper (paper that can not reuse) of indelible image in user's mistake, also the paper that can reliably the paper that can not reuse be used as waste treatment is collected in collection unit.
Below, the image processing system of second structure example is described.
Fig. 4 and Fig. 5 show second structure example of image processing system.The structure (image forming mode) of the printer 12B of Fig. 4 and image processing system 1B shown in Figure 5 is different with the structure of the printer 12A of the image processing system 1A of first structure example illustrated in figures 1 and 2.The printer 12A of the image processing system 1A of first structure example illustrated in figures 1 and 2 is an ink-jet printer, and the printer 12B of the image processing system 1B of the Fig. 4 and second structure example shown in Figure 5 is the electro photography printer.
In addition, on the image processing system 1B of second structure example, each structure beyond the printer 12B also can be identical with the image processing system 1A of above-mentioned first structure example.For example, the structure of the recycling handling part 18 of image processing system 1B is identical with action with the structure of the recycling handling part 18 of above-mentioned image processing system 1A with action.Therefore, omission is to the structure of recycling handling part 18 and the specifying of action of image processing system 1B.In the explanation of following image processing system 1B, be elaborated with regard to structure and the action of above-mentioned printer 12B.
Below, above-mentioned printer 12B is elaborated.
As mentioned above, above-mentioned printer 12B is an electrophotographic printer.And above-mentioned printer 12B is a color printer.Above-mentioned printer 12B comprise paper feed roller 102, conveying roller to 103, the contraposition roller to 104, a plurality of image forming part 141 (141K, 141C, 141M, 141Y), intermediate transfer belt 142, driven roller 143, backing roll 144, secondary transfer roller 145 and fuser 146 etc.And each image forming part 141Y (141K, 141C, 141M) comprises image carrier Y1 (K1, C1, M1), charged roller Y2 (K2, C2, M2), exposer Y3 (K3, C3, M3), developer Y4 (K4, C4, M4), transfer roll Y5 (K5, C5, M5), cleaner Y6 (K6, C6, M6) etc.
The paper P that above-mentioned paper feed roller 102 will remain in the carton 10 one by one takes out.Above-mentioned paper feed roller 102 will be transported to from the paper P that carton 19 takes out conveying roller to 103 and the contraposition roller to 104.Above-mentioned contraposition roller to 104 with predetermined timing conveyance of sheets P.
A plurality of image forming parts (141K, 141C, 141M, 141Y) are oppositely arranged with intermediate transfer belt 142 as the intermediate transfer body of transfer printing body respectively.Utilize driven roller 143 and backing roll 144, with the intermediate transfer belt 142 of suitable tension force maintenance as transfer printing body.Above-mentioned intermediate transfer belt 142 is along with the rotation of above-mentioned driven roller 143 drives.Each image forming part (141K, 141C, 141M, 141Y) forms the toner picture that is formed by the versicolor toner that decolours respectively on intermediate transfer belt 142.
At first, on the image forming part 141Y of the first order, image carrier Y1 is arranged on photosensitive drums on the conductive base with photosensitive layers such as organic class or amorphous silicons.For example, the photosensitive drums as above-mentioned image carrier is the charged Organophotoreceptor in negative polarity ground.Above-mentioned charged roller Y2 makes image carrier Y1 charged equably.For example, above-mentioned charged roller Y2 makes the charged equably 500v in surface as the photosensitive drums of above-mentioned image carrier Y1.Exposer Y3 passes through by the laser beam of image modulation or LED etc., to being exposed by the charged image carrier Y1 of above-mentioned charged roller Y2.Surface in the photosensitive drums of the image carrier Y1 that has carried out exposure by exposer Y3 forms electrostatic latent image.At this moment, as the surface potential of the photosensitive drums of the image carrier Y1 that is exposed for example for about-80v.
Developer Y4 makes the electrostatic latent image that is formed on as the surface of the photosensitive drums of image carrier Y1 visual.Developer Y4 develops to electrostatic latent image by mixing charged non magnetic toner in negative polarity ground and 2 composition visualization way of magnetic carrier.Promptly, above-mentioned developer Y4 has on the developer roll of magnet the point that forms based on carrier, to developer roll apply approximately-200～-voltage of 400v.Consequently, on the surface as the photosensitive drums of image carrier Y4, toner is non-cohesive in non-exposure portion, and attached to exposure portion.Toner in the above-mentioned developer Y4 is the yellow tone agent that can decolour.Therefore, above-mentioned image forming part 141Y utilizes the yellow tone agent of supplying with from above-mentioned developer Y4 of decolouring, and toner image is formed on surface as the photosensitive drums of image carrier Y4.
In addition, visualization way is not limited to 2 composition visualization way, also can use modes such as the development of contact 1 composition, the development of noncontact 1 composition, electric conductivity 1 composition development.Being formed on toner image as the photosensitive drum surface of image carrier Y1 is transferred on the intermediate transfer belt 142 as transfer printing body.Observe from image carrier Y1 side, contact with the back side of intermediate transfer belt 142 as the transfer roll Y5 of transfer member.Above-mentioned transfer roll Y5 is provided for from the electric field of the back side transfer printing toner image of middle transfer belt 142.To the voltage that transfer member applies is about 300～2kv.Cleaner Y6 removes and to remain in after the transfer printing as the residual toner on the photosensitive drum surface of image carrier Y1 etc.With respect to the direction of rotation as the photosensitive drums of image carrier Y1, cleaner Y6 is arranged on the front of charged roller Y2.Utilize cleaner Y6 to be recycled to the not shown useless toner cartridge from the toner that image carrier Y1 removes.
Each image forming part 141M, 141C and 141K have the identical structure with above-mentioned image forming part 141Y.That is, image carrier M1 (C1, K1), charged device M2 (C2, K2), exposer M3 (C3, K3), developer M4 (C4, K4) and transfer roll M5 (C5, K5) constitute in the same manner with above-mentioned image carrier Y1, charged device Y2, exposer Y3, developer Y4 and transfer roll Y5.
The toner that each image forming part will utilize the versicolor toner that decolours to develop (carries out primary transfer) as overlapping transfer printing on intermediate transfer belt 142.Consequently, on intermediate transfer belt 142, form the coloured image that the versicolor toner image that decolours overlaps.Based on being transferred to as the coloured image of the toner of the multiple color on the intermediate transfer belt 142 of transfer printing body in the secondary transfer printing position of regulation by secondary transfer printing to paper P.In the secondary transfer printing position that the toner image on the intermediate transfer rollers 142 is transferred on the paper backing roll 144 and secondary transfer roller 145 are set.In this case, above-mentioned roller against corrosion to 104 with intermediate transfer belt 142 on the toner image time as one man with paper sheet delivery to the secondary transfer printing position.Toner image on the above-mentioned intermediate transfer belt 142 is transferred on the paper in the secondary transfer printing position.
If make backing roll 144 ground connection, then, apply the just bias voltage of (+) polarity to secondary transfer roller 145 for toner being transferred on the paper P as second transfer printing body.Transfer bias is selected according to the resistance of secondary transfer roller 145 or environment and as the controlled value of paper resistance of second transfer printing body.For example, transfer bias is selected from the value of+300～5kv.In addition, also can be secondary transfer roller 145 ground connection and the structure that applies the negative polarity bias voltage to backing roll 144.In the position transfer printing of above-mentioned secondary transfer printing the paper P of toner image be expelled to discharge tray 14 by fuser 146.Above-mentioned fuser 146 makes the toner picture photographic fixing on this paper P that is transferred on the paper P.
And as mentioned above, the versicolor toner that utilization can be decoloured forms by the toner image of fuser 146 photographic fixing on paper.Therefore, the toner image as the coloured image of photographic fixing on paper can decolour.For example, when the toner image on the paper is heated to the bleaching temperature (temperature that is higher than fixing temperature at least) of regulation, decolour.
In addition, transfer roll Y5, M5, C5, K6 for example are made of the poly-ammonia sponge of having adjusted resistance.For example, transfer roll Y5, M5, C5, K5 can be that the roller of ф 14mm of the sponge of 106 Ω cm constitutes by form resistance on the axle of ф 8mm also.And, also can use transfer printing brush or transfer plate etc. to have the parts of proper resistor as the transfer roll of primary transfer parts.Intermediate transfer belt 142 for example carries out the resistance adjustment by carbon being dispersed in the thick polyimide resin of 100 μ m.Charged roller Y1, M1, C1, K1 can be such formations: for example form polyurethane rubber around metal shaft (ф 8mm), coat the nylon resin with good fissility on its surface.In this case, for example, charged roller Y1, M1, C1, K1 can be that 2 * 107 Ω cm, superficial layer (t=0.05mm) are the resistance value formation of 5 * 108 Ω cm by polyurethane rubber layer (t=3mm).
Suppose in above-mentioned electro photography printer, use and utilize heat can eliminate the toner as Image forming material of (decolouring).In this case, need set in this print processing, not apply and be higher than the temperature of eliminating temperature to toner.This be because, if Image forming material heated with the temperature that is higher than elimination, the possibility of decolouring is arranged then before being printed on the paper.But consider the energy consumption of printer itself, preferably set for the elimination temperature of toner low as far as possible.Therefore, in printer, the temperature that as far as possible will be applied on the toner is not set high temperature for.
Promptly, in aforesaid electro photography printer, the temperature that is designed to be applied in print procedure on the toner is not higher than the elimination temperature.For example, in the printer of Fig. 4 or electro photography shown in Figure 5, the elimination temperature of toner set for be higher than photographic fixing handle fixing temperature in (temperature that is applied on the toner is the processing of maximum temperature) in print processing.For example, suppose that fixing temperature is 120 degree, the toner that the electro photography printer is used carries out the material design, is 140 degree so that it eliminates temperature.
And, state in the use among the printer 12B of eliminable toner, print images onto on the paper, and, print expression and be the information of the paper that can reuse.Expression is that the information of the paper that can reuse is the information of utilizing detecting sensor 123 described later to detect.For example, above-mentioned expression is that the information of the paper that can reuse is the mark that prints under given conditions on the paper.Print above-mentioned mark when in this case, above-mentioned printer 12B is at every turn on printing images onto each paper.Also can in advance such mark be printed on the paper.In this case, above-mentioned printer 12B also can not print the processing of above-mentioned mark.
Below describe with regard to the image processing system of the 3rd structure example.
Fig. 6 and Fig. 7 show the 3rd structure example of image processing system.In Fig. 6 and image processing system 1C shown in Figure 7, be arranged to take in as the carton of taking in paper recycling paper the sharp paper bin of repetition and take in the new carton of new paper.The image processing system 1C of Fig. 6 and the 3rd structure example shown in Figure 7 forms and will the carton 10 among the image processing system 1A of first structure example illustrated in figures 1 and 2 changes the formation that the sharp paper bin 10R of repetition and new paper are used carton 10N into.Equally, the printer 12B with the printer 12A of image processing system 1C changes Fig. 4 and electro photography shown in Figure 5 into also can similarly implement.
As Fig. 6 or shown in Figure 7, have as sharp paper bin 10R of the repetition of the carton of taking in paper sheet for printing and new paper on the image processing system 1C with carton 10N, it is that the paper that forms image uses recycling paper or new paper that the user can select by not shown guidance panel.For example, on image processing system 1C, under the situation that the user prints in order to proofread and correct the file in the making, paper can be selected to reuse, new paper can be selected under the situation of printing capsule information.Promptly, in above-mentioned image processing system 1C, select to meet the print paper of user's needs.
Above-mentioned printer 12C takes out paper one by one and prints processing from the carton (the perhaps direct carton of selecting of user) of taking in the selected paper of user.For example, the user selects to reuse under the situation of paper, and above-mentioned printer 12C takes out paper P by pickup roller 102R from recycling carton 10R.The paper P that takes out by pickup roller 102R carries 104 to the contraposition roller 103R etc. by conveying roller.If paper P is carried 104 to the contraposition roller, then printer 12C is the same with the printer 12A of image processing system 1A, goes up print image to this paper P, and paper is to discharge tray 14 side by side.
And, selecting the user under the situation of new paper, above-mentioned printer 12C uses from new paper by pickup roller 102N and takes out new paper P ' the carton 10N.The new paper P ' that takes out by pickup roller 102N carries 104 to the contraposition roller 103N and 103R etc. by conveying roller.If paper P ' is transported to the contraposition roller to 104, then printer 12C is the same with the printer 12A of image processing system 1A, goes up print image to this paper P ', and paper is to discharge tray 14 side by side.
And, use the printer 12C of the above-mentioned ink eliminated the same with the printer 12A of image processing system 1A, go up print image to recycling paper P or new paper P ', and print the information (mark) that expression is the paper that can reuse.
In addition, the structure of the recycling handling part 18 of above-mentioned image processing system 1C is the same with the recycling handling part 18 of above-mentioned image processing system 1A with action.But, in the recycling handling part 18 of above-mentioned image processing system 1C, take in that to eliminate the place of the paper of processing be the sharp paper bin 10R of repetition by eliminating mechanism 125.Therefore, omission is to the structure of the recycling handling part 18 of image processing system 1C and the detailed description of action.And, select the paper (or selecting carton) of new paper or recycling to be not limited to by not shown operating portion and directly to select.For example, the external device (ED)s such as PC that also can move by the print driver that requires this image processing system to print processing to the selection (or selection of carton) of the paper of new paper or recycling are selected.
Below, the image processing system of the 4th structure example is described.
Fig. 8 and Fig. 9 are the 4th structure example of image processing system.On the image processing system 1D of Fig. 8 and the 4th structure example shown in Figure 9, the elimination mechanism 151 that will be used to eliminate the image on the paper is arranged in the printer 12D.And Fig. 8 is identical with the image processing system 1C of the 3rd structure example with image processing system 1D shown in Figure 9, and the new paper that is provided with the sharp paper bin 10R of repetition of the paper of taking in recycling and takes in new paper is taken in the carton of paper with carton 10N conduct.
In Fig. 8 and image processing system 1D shown in Figure 9, be arranged on except eliminating mechanism 151 not to be arranged in the recycling handling part 18B in the printer 12D this point, have the structure identical with the image processing system 1C of the 3rd structure example.The paper that Fig. 8 and image processing system 1D shown in Figure 9 will not carry out image elimination processing is accommodated in the sharp paper bin 10R of repetition.That is, in the recycling handling part 18B of above-mentioned image processing system 1D, paper is not carried out image eliminate to handle, and the paper of paper that can reuse and not reproducible utilization is classified, to repeating sharp paper bin 10R or collection unit 11 is carried.In addition, the printer 12D of image processing system 1C changed on the printer 12B of Fig. 4 and electro photography shown in Figure 5 add the device of eliminating mechanism 151, also can implement equally.
Below, the printer 12D of above-mentioned image processing system 1C is described.
Fig. 8 is identical with the image processing system 1C of above-mentioned the 3rd structure example with image processing system 1D shown in Figure 9, and the paper that user's selection prints processing is recycling paper or new paper.
The user selects under the situation of new paper as print paper, and pickup roller 102N uses from new paper and rubs new paper P ' the carton 10N with the hands.Conveying roller is carried the paper that pickup roller 102N has rubbed with the hands to the contraposition roller by eliminating mechanism 151 103N and 103R to 104.In this case, because this paper is new paper, then need not to carry out the elimination processing of image.Therefore, under holding state, make this paper P ' by eliminating mechanism 151.Above-mentioned contraposition roller is transported to this paper P ' on the conveyer belt 107 with predetermined timing 104.Above-mentioned printer 12D is the same with above-mentioned printer 12A, goes up print image at the paper P ' that is sent on the conveyer belt 107, and discharges on discharge tray 14.
On the other hand, the user selects to reuse (or not selecting under the situation of new paper) under the situation of paper as printing paper, and pickup roller 102R rubs with the hands from the paper P that repeats to utilize carton 10R.Conveying roller will be carried to eliminating mechanism 151 by the paper that pickup roller 102R has rubbed with the hands 103R.In this case, on recycling paper P, do not carry out image and eliminate processing.Therefore, eliminating mechanism 151 moves in order to eliminate the image on the paper.
That is, eliminating heater block that mechanism 151 will be used for heating paper is heated to more than the set point of temperature that can decolour to image.Under this state, above-mentioned elimination mechanism 151 heats the paper P that transports being higher than under the elimination temperature of regulation.Be eliminated at the image that is higher than on the paper P that heats under the elimination temperature of regulation.The paper P that has eliminated image by above-mentioned elimination mechanism 151 is transported to the contraposition roller to 104.The contraposition roller will carry out eliminating the paper P that handles to 104 and be transported on the conveyer belt 107 with predetermined timing.Above-mentioned printer 12D is identical with above-mentioned printer 12A, carrying out eliminating on the paper P that handles print image once more, and discharging to discharge tray 14.
Below, the action in the printer 12D of said structure is described.
Figure 10 is the flow chart that is used to illustrate the action example of above-mentioned printer 12D.In addition, mainly control each action of printer 12D described later by not shown control part.
The user selects (ACT31, new paper) under the situation of new paper as print paper, and above-mentioned pickup roller 102N is taken into a piece of paper P ' (ACT32) from new paper with carton 10N.In this case, eliminate not heating paper of mechanism 151, form halted state (ACT33).Under this state, carried 104 to the contraposition roller with the paper P ' that takes out the carton 10N from above-mentioned new paper.In addition, yet can not utilize and to carry 104 transport paths of carrying to the contraposition roller with the new paper that takes out the carton 10N from above-mentioned new paper by eliminating mechanism 151.
And (ACT31: recycling), above-mentioned pickup roller 102R is taken into a piece of paper P (ACT34) from recycling carton 10R under the situation of paper as print paper that the user selects to reuse.In this case, because eliminate mechanism 151 paper is heated to above the elimination temperature of regulation, thereby forms driving condition (ACT35).Under this state, the paper P that takes out from above-mentioned recycling carton 10R passes through to eliminate mechanism 151.The paper P that above-mentioned elimination mechanism 151 passes through with the temperature heating of the elimination temperature that is higher than regulation, thus image (ACT36) on the paper P eliminated.To carry 104 to the contraposition roller by the paper P that image has been eliminated by above-mentioned elimination mechanism 151.
Paper arrives above-mentioned contraposition roller to after 104, above-mentioned contraposition roller to 104 with this paper P ' or carried out eliminating the paper P that handles and be transported on the conveyer belt 107 with predetermined timing.Go up the print image (ACT37) that forms expectation at paper P ' that supplies with to conveyer belt 107 or paper P.At this moment, will be to reuse the mark of the information of paper also to be printed on the sharp paper of repetition and to open on P or the new paper P ' as expression with print image.The paper P ' or the P that have printed above-mentioned print image and above-mentioned mark are discharged (ACT38) on discharge tray 14.
As above-mentioned print processing result, on the paper that takes out from the recycling carton, after removal of images, once more with the black print image that can decolour.
Below, the recycling handling part 18B of image processing system 1D is described.
On the recycling handling part 18B of above-mentioned image processing system 1D, be not provided with and eliminate mechanism 151.Therefore, recycling handling part 18B carries out having omitted image from the processing of the recycling handling part 18 of above-mentioned image processing system 1A, 1B or 1C and eliminates the processing of handling.
That is, in above-mentioned recycling handling part 18B, pickup roller 121 is taken into the paper that is placed on the paper supply tray 16 one by one.Conveying roller is to 122 paper of carrying pickup roller 121 to be taken into.Whether detecting sensor 123 detects conveying roller is the paper that reuse to 122 paper of carrying.
Above-mentioned detecting sensor 123 judge be not should the situation of reusable paper under, shown in arrow among Fig. 9, transport path switching mechanism 124 conversion transport paths.In this case, this paper is collected in collection unit 11.And, judge it is under the situation of the paper that reuse in above-mentioned detecting sensor 123, shown in the arrow among Fig. 8, transport path switching mechanism 124 conversion transport paths.In this case, this paper is incorporated in the sharp paper bin 10R of repetition.On recycling handling part 18B, be not provided for eliminating the elimination mechanism of the image on the paper.Therefore, recycling handling part 18B is accommodated in it in sharp paper bin 10R of repetition under the state of paper that should reuse not being eliminated processing.
Below, the action in the recycling handling part 18B that constitutes is as described above described.
Figure 11 is the flow chart that is used to illustrate the action example in the above-mentioned recycling handling part 18B.In addition, mainly control respectively moving in the recycling handling part 18B described later by not shown control part.
Detection is arranged on the sensor (not shown) of the paper on the above-mentioned paper supply tray 16, and (ACT41, YES), then above-mentioned pickup roller 121 is taken into the paper on the above-mentioned paper supply tray 16 in the recycling handling part 18 (ACT42) one by one in case detect paper.Above-mentioned conveying roller is carried (ACT43) to 122 paper that above-mentioned pickup roller 121 is taken into to detecting sensor 123.The information (ACT44) whether above-mentioned detecting sensor 123 can reuse detection expression 122 paper of carrying from conveying roller.
Judge based on the recycling of the testing result of above-mentioned detecting sensor 123 in basis, judge that this paper is not (ACT45:NO) under the situation of the paper that can reuse, as shown in Figure 9, above-mentioned transport path switching mechanism 124 conversion transport paths are so that carry (ACT46) with this paper to above-mentioned collection unit 11.Under this state, paper is collected in the above-mentioned collection unit 11 (ACT47) by paper collecting mechanism 127 grades.
And, judge according to recycling based on the testing result of above-mentioned detecting sensor 123, judge that this paper is (ACT45:YES) under the situation of the paper that can reuse, as shown in Figure 8, above-mentioned transport path switching mechanism 124 conversion transport paths are so that carry (ACT48) with this paper to recycling carton 10R side.Under this state, this paper sets up an organization by conveying roller 128 and paper and 126 etc. carries and be accommodated in wherein (ACT49) to recycling carton 10R.
As the result of above-mentioned processing, the paper that should reuse that is placed on the pallet is accommodated in the recycling carton with untreated state (state of image nondiscoloration), and the paper that should not reuse that is placed on the pallet is collected in collection unit.
Below, describe judging based on the recycling of the testing result of above-mentioned detecting sensor 123.
In the recycling handling part 18B of the recycling handling part 18 of above-mentioned each image processing system 1A, 1B, 1C or image processing system 1D,, judge whether paper is the paper that can reuse according to the testing result of above-mentioned detecting sensor 123.That is, above-mentioned detecting sensor 123 detects whether there is the reusable information of expression on paper.At this, above-mentioned detecting sensor 123 detects the mark of the regulation of the information that whether can reuse as expression.
Above-mentioned detecting sensor 123 also can be made of scanner and test section, and this scanner reads the image in the zone of the print position that comprises the mark on the paper, the mark that this test section is stipulated from the image detection that reads according to scanner.And above-mentioned detecting sensor 123 also can be made of scanner, and not shown control part judges whether underlined (judging recycling).
But, whether the mark of the information that can reuse as expression, can be according to occupation mode, accomplished in various ways.For example, can print at the printer of image processing system and print above-mentioned mark when handling, also can on paper, form above-mentioned mark in advance.And above-mentioned mark is not limited to specific shape or color etc.And the position of franking is not limited to certain location so long as do not influence the scope of main image and get final product.
At this, suppose with defined terms franking on the paper that can reuse.For example, on the paper that can reuse, utilize yellow ink (or toner) from the top 5mm of paper and print the mark of " R " shape from the position of right-hand member 10mm.In this case, scanning judges whether to have " R " mark of yellow, thereby detects above-mentioned mark from the top 5mm of paper and from the zone of right-hand member 10mm from the image after this scanning.Under the situation of the mark that does not have to plan to satisfy above-mentioned condition, the situation of utilizing common printer to print is very rare.Therefore, can realize whether distinguish is the mode of the paper that can reuse according to whether detecting above-mentioned mark.
As mentioned above, the expression mark that can reuse is not limited to specific color or shape etc.The user also can realize for example utilizing visual high Bk ink (or toner) to print the mark of regulation shape, so that can reuse by visual just can easily judging whether.And, also can consider to print the mode of the mark that the user can not visual confirmation.And, also can consider to use obsolete special inks of general printer or toner that mark is printed on mode on the paper.
Figure 12 is a structure example of utilizing the image processing system 1E of special ink printed mark.In the image processing system 1E of structure example shown in Figure 12, outside the printhead that is used for four kinds of color ink, also be provided with record head 161.Record head 161 is recorded in obsolete special inks in the print processing of image.In this case, above-mentioned detecting sensor 123 is made of the sensor that detects the special inks of printing by record head 161.
For example, record head 161 can utilize the special inks of UV detection to print on the paper.In this case, in the above-mentioned detecting sensor 123, use the sensor that detects the mark that utilizes above-mentioned record head 161 printings by irradiation ultraviolet radiation on paper.
And above-mentioned record head 161 also can utilize the magnetic ink franking of the particle with magnetic.In this case, use the magnetic sensor of the magnetic that has in the magnetic ink that detects formation mark on paper as above-mentioned detecting sensor 123.
In addition, the shape of mark is not limited to " R ", can use various patterns such as triangle, square, rhombus, pentagon, hexagon, star, circle.And the position of mark is so long as outside main image-region, no matter be at paper front end, or rear end of paper, right-hand member, left end etc. can.Promptly, represent that the mark that can reuse is as long as suitably set according to the utilization form.
And, according to print form, sometimes at front end, rear end, right-hand member, left end, the zone very narrow (or not existing) beyond the main image.Under such situation,, be difficult to print the mark that the user can be visual in order not influence main image.Under these circumstances, also can the people can not be visual state under to print the expression paper be the mark that can reuse.For example, can consider to utilize the mode of can not visual ink printed representing the mark that can reuse.And, also can by eletric watermark technology etc. will represent the mark that can reuse as Information hiding in the main image of printing to this paper.In this case, above-mentioned detecting sensor 123 is constituted to detect the mark of the state that the people can not be visual.
Below, the elimination mechanism as the image eraser of eliminating the image on the above-mentioned paper is described.In addition, for example be applicable to the elimination mechanism 125 on the recycling handling part 18 or eliminate the structure example of mechanism 151 in the elimination mechanism of this explanation.
At this, eliminate mechanism by paper being heated the color of coming removal of images.In this case, eliminate the structure that mechanism can consider to use thermal head, temperature-sensitive rod or warm-up mill.The type of use warm-up mill need be taken time warm-up mill is warmed up to the temperature that can eliminate processing.For example, in advance under the situation about warm-up mill not being heated, can not eliminate processing to the paper that should reuse that is placed on the pallet immediately.Therefore, according to behaviour in service, the paper that should eliminate might accumulate on the pallet.And in the elimination mechanism that uses thermal head or temperature-sensitive rod, the stand-by period that is used to heat up is short.But, in the surperficial contacting structure that makes thermal head or temperature-sensitive rod and paper, because therefore Image forming materials such as ink or toner, make and eliminate performance deterioration significantly easily attached to the surface of thermal head or temperature-sensitive rod.
Can use the elimination mechanism 210,220 of aftermentioned structure example as the elimination mechanism of above-mentioned image processing system 1A, 1B, 1C, 1D.
Figure 13 shows first structure example of eliminating mechanism 210.
Above-mentioned conveyer belt 211 is erected on backing roll 212 and the backing roll 213.Above-mentioned conveyer belt 211 is driven along with the rotation of backing roll 212 and backing roll 213.Opposed roll 214 is relative with backing roll 212 across conveyer belt 211.Paper P is by above-mentioned opposed roll 214 and be supported between the conveyer belt 211 of roller 212 supporting.
The surface of the above-mentioned conveyer belt 211 of above-mentioned IH heater 215 heating.Above-mentioned IH heater 215 provides the heat that is applied on the paper by conveyer belt 211.That is, as long as above-mentioned IH heater 215 is arranged to supply with the heat that is higher than set point of temperature to paper by conveyer belt 211.For example, in example shown in Figure 13, the mode of conveyer belt 211 with clamping between IH heater 215 and backing roll 213 is provided with.
By above-mentioned structure, above-mentioned elimination mechanism 210 is to the heat that the elimination temperature that is higher than regulation is provided by the paper between opposed roll 214 and the conveyer belt 211 (ink on the paper surface or toner).In above-mentioned elimination mechanism 210, providing on the paper that is higher than the heat of eliminating temperature, be eliminated as the ink of the Image forming material that forms image or the color of toner.
Below, the structure of the conveyer belt 211 that above-mentioned elimination mechanism 210 uses describes.
In the elimination mechanism 210 of said structure, conveyer belt 211 has the function that the heat from IH heater 215 is provided to paper.Therefore, require conveyer belt 211 to have following function, promptly, the function that provides till the paper will be provided from the heat of IH heater 215, function that the heat that is kept is provided to paper expeditiously etc.
Figure 14 is the figure of the structure example of conveyer belt 211.In example shown in Figure 14, conveyer belt 211 forms three layers of mechanism.Conveyer belt 211 shown in Figure 14 is made of bottom 211a, superficial layer 211b and intermediate layer 211c.Bottom 211a is to be that the endless belt conveyer of polyimides etc. constitutes by matrix material.The thickness of bottom 211a for example is 75 μ m.
Above-mentioned superficial layer 211b is the layer that directly contacts with paper surface.Be preferably formed among the above-mentioned superficial layer 211b the structure after the non-cohesive heating as the ink or the toner of Image forming material.For example, if attached to superficial layer 211b, then might causing eliminating performance, reduces Image forming material.And if adhere again on the paper attached to the Image forming material of superficial layer 211b, the Image forming material that then adheres to once more also might become the noise image on the paper.Therefore, above-mentioned superficial layer 211b is formed by materials such as the polytetrafluoroethylene fibre class with good fissility, silicon classes.The cleaning mechanism (not shown) of the superficial layer 211b of clean belt 211 also can be set in above-mentioned elimination mechanism 210 in addition.
Above-mentioned intermediate layer 211c is used for obtaining effect of heat insulation between bottom 211a and superficial layer 211b.Therefore, the pyroconductivity of above-mentioned intermediate layer 211c is lower than above-mentioned superficial layer 211b.In the elimination mechanism 210 of structure shown in Figure 13, it is different with the position of conveyer belt 211 heating paper P that conveyer belt 211 is used as the position of IH heater 215 heating of thermal source.Therefore, above-mentioned intermediate layer 211c heat that IH heater 215 is provided remains to the position of heating paper P.
In the above-mentioned elimination mechanism 210, be difficult to the problem of generation because of causing adhering to of Image forming materials such as ink or toner.And above-mentioned elimination mechanism 210 does not need to be used to be warmed up to the stand-by period of eliminating temperature.Like this, above-mentioned elimination mechanism 210 can realize that good elimination handles.Eliminating mechanism 210 is the mechanisms that utilize as IH heater 215 heated belt 211 of thermal source.Such elimination mechanism 210 power consumption are few and eliminate performance and can not be damaged because of the pollution of Image forming material (ink or toner), can carry out good elimination repeatedly.
Figure 15 shows second structure example of eliminating mechanism 220.
Above-mentioned conveyer belt 221 is erected on backing roll 222, backing roll 223 and the heating head 225.Above-mentioned conveyer belt 221 is driven along with the rotation of backing roll 222 and backing roll 223.Opposed roll 224 is relative with heating head 225 as thermal source across conveyer belt 221.Above-mentioned heating head 225 is pushed conveyer belt 221 in the face of opposed roll 224.Paper P is by above-mentioned opposed roll 224 with by between the conveyer belt 211 of above-mentioned heating head 225 supportings.Above-mentioned heating head 225 is by thermal head or temperature-sensitive bar construction.Above-mentioned heating head 225 provides the heat of the elimination temperature that is higher than Image forming material to paper P by above-mentioned conveyer belt 221.That is, above-mentioned heating head 225 is heating when paper P pushes conveyer belt 221.
Below, the structure of the conveyer belt 221 that above-mentioned elimination mechanism 220 is used describes.
Figure 16 shows the structure example of conveyer belt 221.In example shown in Figure 16, conveyer belt 221 is double-layer structures.
Above-mentioned bottom 221a is formed by polyimide or metal materials such as (Ni, SuS etc.).For example, the thickness of above-mentioned bottom 221a is 20 μ m～150 μ m.And the service life of above-mentioned conveyer belt 221 is also relevant with the yang type modulus of the material that constitutes bottom 221a.Consider this point, bottom 221a uses high polyimide conveyer belt or the metal belt (Ni, SuS etc.) of yang type modulus.
Above-mentioned superficial layer 221b is the layer that directly contacts with paper surface.Preferred above-mentioned superficial layer 221b forms the structure as the ink or the toner of Image forming material after the non-cohesive heating.For example, if Image forming material is attached to superficial layer 221b, then might causes eliminating performance and reduce.And if adhere again on the paper attached to the Image forming material of superficial layer 221b, the Image forming material that then adheres to once more also might become the interfering picture on the paper.Therefore, above-mentioned superficial layer 221b is formed by materials such as the polytetrafluoroethylene fibre class with good fissility, silicon classes.The cleaning mechanism (not shown) of the superficial layer 221b of clean belt 221 also can be set in above-mentioned elimination mechanism 220 in addition.
As mentioned above, in eliminating mechanism 220, when utilizing conveyer belt protection paper surface, directly supply with heat to paper P.The elimination mechanism 220 of this spline structure does not need to be used to be warmed up to the stand-by period of eliminating temperature.And above-mentioned elimination mechanism 220 is difficult to the problem of generation because of causing adhering to of Image forming material.Consequently, above-mentioned elimination mechanism 220 can realize that good elimination handles.That is to say, eliminate mechanism 220 and be and utilize thermal head or temperature-sensitive rod mechanism from back side heated belt.Such elimination mechanism 220 power consumption are few and eliminate performance and can not be damaged because of the pollution of Image forming material (China ink or toner), can carry out good elimination repeatedly.
In addition, the elimination mechanism 210,220 of Figure 13 or structure shown in Figure 15 and to be used for the mechanism of fixing device of printer of electro photography similar.But, in the fixing device of electro photography, need to carry out suitable control according to the quantity of the kind of the paper that passes through or the paper that passes through continuously, so that the temperature of fixing member do not change, and in the temperature range of regulation.For example, be lower than at fixing temperature under the situation of temperature range of regulation, produce the low temperature skew owing to photographic fixing is not enough, be higher than under the situation of temperature range of regulation the undue fusion of toner, generation elevated temperature excursions at fixing temperature.For example, if the little paper of size is passed through, the temperature of then not passing through the two end portions of paper rises.If such phenomenon is not carried out suitable control, will produce elevated temperature excursions.That is, on fixing device, need adopt various measures in order to carry out strict temperature control.
And in the decolouring mechanism 210,220 of Figure 13 and structure shown in Figure 15,, also paper can be heated to above the elimination temperature if in the not impaired scope of paper itself.In eliminating mechanism 210,220, do not need strict temperature control in other words.Therefore, the decolouring mechanism 210,220 of Figure 13 or structure shown in Figure 15 can realize with simple temperature control device, and can easily realize with low cost.
For those of ordinary skills, additional utilization of the present invention and modification are accomplished easily.Therefore, the description of this invention is not limited to specific detail described herein and exemplary embodiments.Thereby, under the prerequisite that does not deviate from the spirit and scope of the invention of determining by claims and equivalent thereof, can make multiple modification to the present invention.
Claims (22)
1. image processing system comprises:
Pallet is placed paper;
Detecting sensor detects whether paid the mark that expression is the paper that can reuse on the paper on the described pallet;
Collection unit is collected the paper that does not detect described mark by described detecting sensor;
Decolouring portion is to decolouring attached to the Image forming material on the paper that detects described mark by described detecting sensor;
Carton is taken in the paper that described Image forming material has been carried out decolouring by described decolouring portion; And
Image forming part makes described Image forming material attached on the paper that is accommodated in the described carton and form image.
2. image processing system according to claim 1, wherein,
Described image forming part is printed expression and is the mark of the paper that can reuse when printing described image.
3. image processing system according to claim 1, wherein,
The ink of the described Image forming material of conduct that described image forming part utilization is decoloured by described decolouring portion forms image on paper.
4. image processing system according to claim 1, wherein,
The toner of the described Image forming material of conduct that described image forming part utilization is decoloured by described decolouring portion forms image on paper.
5. image processing system according to claim 1 also comprises:
Second carton is used for the user and carries out paper and take in,
Wherein, the Image forming material that described image forming part utilization is decoloured by described decolouring portion, be accommodated in described carton or described second carton any one in paper on form image.
6. image processing system according to claim 1 also comprises:
Label record portion is used for forming at the Image forming material that described image forming part utilization is decoloured by described decolouring portion the paper of image, and the record expression is the mark of the paper that can reuse.
7. image processing system according to claim 6, wherein,
Described label record portion represents it is the mark of the paper that can reuse by special ink-mist recording.
8. image processing system comprises:
Pallet is placed paper;
Detecting sensor detects whether paid the mark that expression is the paper that can reuse on the paper on the described pallet;
Collection unit is collected the paper that does not detect described mark by described detecting sensor;
Carton is taken in the paper that detects described mark by described detecting sensor;
Decolouring portion is to decolouring attached to the Image forming material that decolours on the paper that takes out from described carton; And
Image forming part makes described Image forming material attached on the paper that described Image forming material has been carried out decolouring by described decolouring portion and form image.
9. image processing system according to claim 8, wherein,
Described image forming part is printed expression and is the mark of the paper that can reuse when printing described image.
10. image processing system according to claim 8, wherein,
The ink of the described Image forming material of conduct that described image forming part utilization is decoloured by described decolouring portion forms image on paper.
11. image processing system according to claim 8, wherein,
The toner of the described Image forming material of conduct that described image forming part utilization is decoloured by described decolouring portion forms image on paper.
12. image processing system according to claim 8 also comprises:
Second carton is used for the user and carries out paper and take in,
Wherein, when forming image on the paper in being accommodated in described second carton, described decolouring portion does not carry out the processing that removal of images forms material just to be provided described paper to image forming part.
13. image processing system according to claim 8 also comprises:
Label record portion is used for forming at the Image forming material that described image forming part utilization is decoloured by described decolouring portion the paper of image, and the record expression is the mark of the paper that can reuse.
14. image processing system according to claim 13, wherein,
Described label record portion represents it is the mark of the paper that can reuse by special ink-mist recording.
15. an image eraser comprises:
Thermal source is used to add the paper that the heat utilization Image forming material is formed with image, and described Image forming material decolours by heating;
Conveyer belt is provided with the heat from described thermal source, and utilizes the heat that is provided by described thermal source, the paper that heating is transferred under contact condition; And
Carton is taken in by being used to of providing of described conveyer belt from the heat of described thermal source and heated paper.
16. image eraser according to claim 15, wherein,
Described thermal source is the heater of induction heating type.
17. image eraser according to claim 15, wherein,
On the described conveyer belt, be provided with position from the heat of described thermal source with different with described paper position contacting, described conveyer belt drives in the heat that described thermal source provides in maintenance, with described paper position contacting the heat that is kept is being offered described paper.
18. image eraser according to claim 17, wherein,
Described conveyer belt comprises bottom, superficial layer and intermediate layer.
19. image eraser according to claim 15, wherein,
Described thermal source is any one in thermal head or the temperature-sensitive rod.
20. image eraser according to claim 15, wherein,
On the described conveyer belt, be provided with position from the heat of described thermal source with consistent with described paper position contacting, the heat that described conveyer belt provides described thermal source is delivered to described paper.
21. image eraser according to claim 20, wherein,
Described conveyer belt comprises bottom and superficial layer.
22. the employed paper object processing method of image processing system comprises:
Whether detection has been paid the mark that expression is the paper that can reuse on paper;
The paper that does not detect described mark is collected in collection unit;
To decolouring attached to the Image forming material on the paper that detects described mark;
The paper that described Image forming material has been decoloured is accommodated in the carton; And
Make described Image forming material attached on the paper that is accommodated in the described carton and form image.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1347207P | 2007-12-13 | 2007-12-13 | |
| US61/013,474 | 2007-12-13 | ||
| US61/013,472 | 2007-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102548859A Division CN102744981A (en) | 2007-12-13 | 2008-12-12 | Image forming apparatus and image forming method |
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| Publication Number | Publication Date |
|---|---|
| CN101456280A true CN101456280A (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101881148A Pending CN101456280A (en) | 2007-12-13 | 2008-12-12 | Image forming apparatus and image erasing apparatus |
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