CN206039149U - Double -colored digital printing device - Google Patents

Abstract

The utility model provides an use cost of can the greatly reduced official document printout, a waste of the medicinal powder is reduced, strong stability, golden light red values ideal, can accomplish all printings through single computer operation, the marking, the step of binding, greatly use manpower sparingly, the efficiency of work is improved double -colored digital printing device, including R, the double -colored group of K, R look imaging unit, K look imaging unit, the rendition area, first transfer roll, the second transfer roll, print controller, two sensitization drums, two laser instruments, fixing unit, still including automatic two -sided ware and automatic centre -stitched ware.

Description

Dual-colour digital code printing equipment

Technical field

This utility model is related to a kind of double-colored printing technique, more particularly to a kind of technology for being exclusively used in official document printing.

Background technology

With the development of digital printing technology, traditional printing technique cannot meet personalized diversified printing need Ask, as digital-code printer, on the market generally using monochromatic digital-code printer, low price is convenient to be suitable for, but, the printing Machine can only realize the printing of monochromatic contribution, there is also polychrome (colour) digital-code printer of various patterns on the market, but, by It is expensive in which, so being generally used in the multi-color printing of specific occasion, medium and small printing enterprise is in general mainly used in, For the consideration in input-output ratio, middle-size and small-size printing enterprise then seems unable to do what one wishes in terms of customization printing is met, such as double The printing of the printing of color file, especially official document.

In prior art, when the color in contribution is printed is few, generally realize that multi-color printing is imitated using manual method Really, i.e. according to the color of contribution, printed during which to be sent into printer manually successively that print different colours, so as to realize Multi-color printing.This manual Method of printing is not only loaded down with trivial details but also easy error, and print quality is poor, it is impossible to meet beating for high traffic Print demand.

In China, in Party and government offices and literary India and China's heart of large enterprise, type of production digital printing equipment is widely used, is used for The printing of the official document of black and white, photochrome and routine work, output.And the printing as the official document of Party and government offices is defeated Go out is that most universal, usage amount is maximum.Official document signifies the national dignified special file with very seriousness, in print During official document processed, the color and typesetting to file has very strict regulation, quick, accurate, efficiently, almost zero go out Error rate is the target of the unremitting pursuit that official document prints enterprise.

Redness in official document is a kind of color with specific colour, entitled bronze red.Polychrome of the prior art The golden light red color of printer synthesis strictly rarely reaches the bronze red of official document requirement, bronze red of the prior art Part typically prints in advance, forms official document by later stage mimeograph documents content, and this greatly reduces to form red The actual effect of header file, error-prone in typesetting, output effect cannot preview, operate, cause powdered ink Waste, printing effect can not meet the credit rating required by official document.

A kind of multicolor printing method and its system has been recorded in Chinese patent CN101117059A, by entering to form feeding device Row is improved, and realizes polychrome, double-colored printing using multiple stage monochrome printers, specifically, including at least two monochrome printers, often Platform monochrome machine side arranges paper-advance unit, and opposite side arranges sheet delivery, at least one form feeding device, to described in cascade at least Two monochrome printers, the transmission entrance of each form feeding device are connected with the sheet delivery of upper level monochrome printers, each The transmission outlet of individual form feeding device is connected with the paper-advance unit of next stage monochrome printers, to print the upper level monochromatic The contribution that machine has been printed is sent to page by page in the paper-advance unit of the next stage monochrome printers, so as to realize multi-color printing.

This printing type realizes the automatization of paper feed, however, progress and printing control model of the which to paper feed Design requirement it is stricter, the preparation to color does not have more methods, fails to print bronze red required by official document Effect.

Chinese patent CN103279017A then realizes multi-color printing there is provided a kind of technical scheme of many toner cartridges, at least two Individual toner cartridge is individually placed at least two toner cartridge grooves, and toner cartridge pull bracket buffer is arranged on the right side of main body panel beating after support Face, takes the design, realizes the multiple toner cartridges of printer and prints jointly, allows user to need convenient and swift replacing according to different The toner cartridge of different colours, so that avoid the problem using printer high cost.

This printing type enriches the demand of color, however, which needs to be controlled print progress, selects Using different toner cartridges, the effect of the bronze red required by official document is equally failed to print.

Chinese patent CN104512120A then provides a kind of spot color and synthesizes printing technique scheme, will include spot color content It is page to be printed to be converted into the polychrome dot array data that printing device is capable of identify that；Spot color content corresponding polychrome dot array data is closed Become spot color dot array data, so that printing device can pass through spot color cartridge prints spot color dot array data；By spot color print cartridge Print spot color dot array data.

In this scenario, official document is converted to into tetra- color dot array datas of CMYK, by the dot array data of CMY color versions by reflecting It is bronze red version dot array data to penetrate Composition, installs bronze red print cartridge and black ink box, according to dot matrix in ink-cases of printers Data and the corresponding relation of print cartridge, dot array data are conveyed into printer, so as to print official document.

The program synthesizes the printing that printing technique realizes official document by spot color, and the dot array data of CMY color versions is passed through Mapping relations synthesize bronze red version dot array data, however, using the bronze red version dot matrix number of the bronze red print cartridge and synthesis According to the bronze red effect for printing is unsatisfactory, and stability is poor, as the increase of life of equipment occurs redness partially The phenomenon of color.And from the point of view of the design of equipment, colored machine is positioned at a large amount of images or figure for printing photochrome or commercial paper As file, coverage rate of the powdered ink on paper should be more satisfactory 10%～30%.And the printing of official document, particularly reddish tone The only little several boldface letters in part, coverage rate are general less than 5%.A large amount of official documents that print can cause Huang, magenta, green grass or young crops Utilization rate is too low, can cause powdered ink and the deterioration after carrier excessive friction.There is concentration deficiency, dust, leak the phenomenons such as powder, cause Using upper constant.

On the other hand, in above-mentioned print procedure, only Huang, product, green grass or young crops, the color of black 4 powdered ink are participated in, and other colors are needed This 4 kinds of colors are wanted to mix by a certain percentage and could realize.Print official document in it is red when, it is desirable to be to realize bronze red Spot color effect, needs Huang, magenta, blue or green mixing by a certain percentage to realize that word segment then needs black.Complete beating for official document Print needs four colour cells to work simultaneously.Extremely waste for the reddish tone for looking only two kinds of colors is exported, and greatly increase Use cost.

Utility model content

In consideration of it, in order to solve above-mentioned technical problem, this utility model provides one kind and can substantially reduce official document to be beaten The use cost of print output, reduce and waste, stability is strong, golden light red value preferably, can be complete by one computation Into all printings, marking, bind the step of, be greatly saved manpower, improve work efficiency dual-colour digital code printing equipment.

Specifically, this utility model provides a kind of dual-colour digital code printing equipment, can realize that auto double color prints, its feature It is, including double-colored group of R, K, R color developers, K color developers, transfer belt, the first transfer roll, the second transfer roll, print control Device, two photosensitive drums, two laser instrument, fixation units, also including automatic double-sided device and automatic centre-stitched device；Paper is by paper feeding Box enter dual-colour digital code printing equipment, pass sequentially through developer, transfer belt, transfer roll, photosensitive drums, laser instrument and fixation unit with Complete the printing of the first face of paper, then reenter dual-colour digital code printing equipment after automatic double-sided device to complete the second face of paper Printing；The paper of printed on both sides is completed through automatic centre-stitched device, specifically through binding ADF processor, rushing cardboard, dress Device and folding roller is ordered, the printing and bookbinding of paper is finally completed.

Specifically, this utility model provides a kind of dual-colour digital code printing equipment, can realize that auto double color prints, its feature It is that double-colored group of R, K, print control unit, two photosensitive drums, two laser instrument, R color developers, K colors show including two colour cells to be Shadow device, transfer belt, the first transfer roll, the second transfer roll, fixation unit, wherein, are double-colored group of reality of R, K by described two colour cells Fileinfo is converted into the lattice information i.e. light of correspondence different colours for the two color printing of existing official document, the print control unit Gated information, and the image of the dot matrix is converted into into two kinds of R, K monochromatic, different net angles dot matrix images and is processed respectively, After superposition forms official document image carry out again transferring, be fixed, wherein, the surface of the photosensitive drums is electrically charged, at each The electric charge of one layer of -800v is filled on drum surface, and 2 laser instrument of correspondence R, K are believed according to the YMCK dot matrix of print control unit Breath, is irradiated in photosensitive drum surface, and forms the latent phase of the electrostatic of -100v, and the R colors developer is to into the red of developer Header file ink powder special is stirred, rubs, charges, and K colors developer uses common powdered ink, makes powdered ink band -600v voltages.It is right In the latent electric potential difference for mutually partly passing through -600v to -100v of electrostatic, powdered ink is transferred to bulging surface, 2 positive charged pressures it is described Transfer roll is installed on the inside of transfer belt in correspondence R, K dichromatism photosensitive drums, the electronegative powdered ink in absorption dichromatism R, K drum surface, so as to 2 color general images are formed in transfer belt surface.

According to the dual-colour digital code printing equipment of above-mentioned offer, it is characterised in that the transfer roll band to transfer belt inner lower Higher Dc bias negative electricity is given, the powdered ink in transfer belt, so as to the carbon dust in transfer belt is transferred on paper.

According to the dual-colour digital code printing equipment of above-mentioned offer, it is characterised in that it is fixed that paper is carried out using the fixation unit Shadow, by setting the pressure and temperature of up-down rollers, so as to powdered ink is completely fixed on paper.

According to the above-mentioned dual-colour digital code printing equipment of this utility model, it is characterised in that by automatic double-sided device to completing The paper automatic turnover of the first face printing, directly carries out the printing in the second face, is automatically obtained printed on both sides.

According to the above-mentioned dual-colour digital code printing equipment of this utility model, it is characterised in that make marking part by software Processed for variable data, reddish tone is realized by the description of PPML (Personal Print Markup Language) language The automatic marking function of file.

According to the above-mentioned dual-colour digital code printing equipment of this utility model, it is characterised in that also riding automatically including on line Attachment means.

According to dual-colour digital code printing equipment of the present utility model, it is that double-colored group of R, K realizes official document by two colour cells Two color printing, different from the M/Y synthesis reddish tone part with four color equipment, so, greatly save powdered ink, significantly reduce into This, meanwhile, also different from being made two bites at a cherry two color printing with two Monochrome Adapters, greatly improve efficiency and accuracy rate.

According to dual-colour digital code printing equipment of the present utility model, fileinfo is converted into correspondence not by the print control unit With the lattice information (rasterization information) of color.Here, grid refer to grid, are exactly rows of little lattice in length and breadth, and little lattice are little to one It is in point-like to determine degree.One file or photo can be regarded as such a little lattice into digital printing apparatus are It is that, by dividing the image into little lattice one by one i.e. dot matrix so as to be identified, point grid gets thinner, and image is got over when exporting It is clear fine and smooth.Raster pattern is also referred to as bitmap, dot chart, pixel map, in short, the figure that i.e. least unit is made up of pixel, only The information of point, can distortion during scaling.Each pixel is with a kind of color with itself corresponding device, the photograph being such as stored in computer Piece is pixel map, is become little color lump if amplifying.Set in digital printing In standby, the image of these dot matrix be converted into into two kinds of R, K monochromatic, different net angles dot matrix images and processed respectively, and finally Again by transfer, fixing output after superposition forms official document image.

According to dual-colour digital code printing equipment of the present utility model, by automatic double-sided device to completing the paper that the first face is printed Automatic turnover, directly carries out the printing in the second face, is automatically obtained printed on both sides.According to this utility model, one side is effectively prevent After printing, artificial turn-over prints the problem of the low low precision of the second face efficiency.Led to by rationally arranging the paper of the automatic double-sided device Road length and ADU (two-sided device unit), in printed on both sides, recto is printed upon the front of paper, and verso is printed upon paper Reverse side.After positive image is fixing, two-sided passage conveying of the paper in ADU returns again to para-position part, then, from para-position Part paper supply again, forms verso images and is simultaneously fixed, convey and eject further along direct paper delivery passage.So, in duplex printing When, paper circulates and is transported to para-position part, will not be deposited in the centre of transfer passage or ADU.By by this circulation canal Optimal paper path length and transmission speed is designed with, so as to the reality when the most frequently used antiquarian (A4/8.5x11) is duplicated Existing maximum productivity.

According to dual-colour digital code printing equipment of the present utility model, the ADU paper path length of high speed compound machine can be once Process the paper of 4 A4/8.5x11 sizes or the paper of 2 A3/11x17 sizes.

Wherein, after fixing, paper is transported to flip portion to paper, and printing surface (the 1st face) is upward.

After fusing nip, the linear velocity of flip portion is switched at a high speed paper, and paper is conveyed.

In the scheduled time after the induction apparatuss of flip portion detect paper, transfer roller rotates in the opposite direction, and court goes out Transmit paper in paper direction.

Then, front (the 1st face) and reverse side (the 2nd face) are reverse, and paper is ejected.

According to dual-colour digital code printing equipment of the present utility model, by software using marking part as at variable data Reason, realizes the automatic marking work(of official document by the description of PPML (Personal Print Markup Language) language Energy.According to this utility model, the content of the VDP page is described using PPML language format files.PPML language is one The personalized VDP language kind developed based on XML language, is opening with device-independent of being released by PODi alliances Put industry standard language.PPML formatted files describe the structure of leaflet, each variable data page using various labellings Constitution element and its positional information.When being stored using PPML forms, the static information of the page need to only carry out a rasterization process (RIP) speed and efficiency of RIP, are substantially increased.

According to dual-colour digital code printing equipment of the present utility model, due to the automatic centre-stitched device also including on line.Complete Official document after printed on both sides, can enter bookbinding ADF processor and determine gutter pos through check plate, and check plate can basis The yardage of setting passes through step motor control stop position, it is ensured that center of the ailhead against paper during binding.Paper After after stopping can by rush cardboard by paper rush together, step up, latter two ailhead while completing bookbinding action.Next step is stapled right Paper moves to folding position with check plate, and stapled paper is pushed folding roller by jackknife, completes to fold.

According to this utility model, simulated by the arrangement of computed in software red and black site and be popular in black affixing one's seal when affixing one's seal Effect such that it is able to more accurately control the ruuning situation of action of affixing one's seal, understands effect of really affixing one's seal.

According to this utility model, by variable data software, so as to realize the function of automatic marking.

According to this utility model, by the automatic centre-stitched device of on line, user can directly take the finished product of file.

Description of the drawings

Fig. 1 is to illustrate the related local of transfer process in the dual-colour digital code printing equipment in this utility model specific embodiment Structural representation.

Fig. 2 is that to illustrate in the dual-colour digital code printing equipment in this utility model specific embodiment that different cartons are realized two-sided Paper feed conspectus during printing.

Fig. 3 is the inside for illustrating the high speed compound machine in this utility model specific embodiment in dual-colour digital code printing equipment Structure chart.

Fig. 4 is to illustrate paper in the high speed compound machine in this utility model specific embodiment in dual-colour digital code printing equipment The first face printing schematic diagram.

Fig. 5 is to illustrate paper in the high speed compound machine in this utility model specific embodiment in dual-colour digital code printing equipment The second face printing schematic diagram.

Fig. 6 is for illustrating in this utility model specific embodiment in dual-colour digital code printing equipment by the red-black net of computed in software The arrangement simulation of point is popular in black design sketch of affixing one's seal when affixing one's seal.

Fig. 7 is the automatic riding dress for illustrating the on line in this utility model specific embodiment in dual-colour digital code printing equipment Order the structural representation of device.

Specific embodiment

This utility model is described in detail with specific embodiment with reference to the accompanying drawings.It should be understood that the explanation is Exemplary, among this utility model is not limited in the specific embodiment.It is pointed out that the accompanying drawing in each accompanying drawing Marking serial numbers are only adapted to this figure, are unsuitable for other accompanying drawings, because not affecting clearness of the present utility model, so not unifying Numbering, for those skilled in the art it should be understood that this point.

As shown in figure 1, for the dual-colour digital code printing equipment transfer process dependent office in this utility model specific embodiment Portion's structural representation.In figure, reference 1 is developing cell (developer), and 2 is writing unit, and 3 is charging corona, and 4 is electric eliminating Lamp (EL), 5 is paper, 6 for the second transfer roll lower roll, 7 is electric eliminating portion, 8 for the second transfer roll lower roll, 9 is transfer belt, 10 For scraper plate (photosensitive drums are Clean-), 11 is scraper plate (transfer belt cleaning use), and 12 is photosensitive drums.Wherein, double-colored group of R, K is respectively by gold The red ink powder special of light and the common powdered ink of black are transferred on drum by respective developer to bulging negative electricity electric potential difference first, then by Positive electricity transfer roll on the inside of transfer belt is adsorbed onto R, K toner in transfer belt respectively, finally again by second turn on the downside of transfer belt On print roller, (8) are transferred to R, K toner on paper by the repulsion of direct current negative electricity.

Specifically, to be that double-colored group of R, K is realized by described two colour cells red for this utility model dual-colour digital code printing equipment The two color printing of header file, fileinfo is converted into the dot matrix of correspondence different colours by print control unit (not shown) Information is rasterization information, and the image of the dot matrix is converted into two kinds of R, K monochromatic, different net angles dot matrix images and is divided Other places are managed, and carry out again transferring, be fixed after superposition forms official document image, and wherein, the surface of the photosensitive drums 12 is filled Electricity, fills the electric charge of one layer of -800v on each 12 surface of drum, and 2 laser instrument (not shown)s of correspondence R, K are controlled according to printing The YMCK lattice informations of device processed, are irradiated on 12 surface of photosensitive drums, and form the latent phase of the electrostatic of -100v, the R colors development Device (R colors developer and K color developer unifications reference 1 are represented in Fig. 1) is to the official document special ink into developer Powder is stirred, rubs, charges, and K colors developer uses common powdered ink, makes powdered ink band -600v voltages.For the latent phase portion of electrostatic The electric potential difference for passing through -600v to -100v, powdered ink is divided to be transferred to 12 surface of drum, the transfer roll 6,8 of 2 positive charged pressures It is installed on the inside of transfer belt 9 in correspondence R, K dichromatism photosensitive drums 12 (is R color photosensitive drums in figure, and is K color photosensitive drums), The electronegative powdered ink in absorption dichromatism R, K drum surface, so that form 2 color general images on 9 surface of transfer belt.By to transfer belt 9 Transfer roll 8 (the second transfer roll/on) pressurization of inner lower so as to the higher Dc bias negative electricity of band, so that the second transfer Electric field being formed between transfer roll 6 when upper roller and paper pass through on the downside of paper (the second transfer roll/under). so will can transfer The carbon dust for taking is transferred on paper.Paper 5 is fixed using the fixation unit (not shown), upper and lower by setting The pressure and temperature of roller 6,8, so as to powdered ink is completely fixed on paper 5.It should be noted that because sending out with this utility model Bright relation be not very closely, so in Fig. 1 other accessories be no longer described further.

As shown in Fig. 2 for illustrating different cartons in the dual-colour digital code printing equipment in this utility model specific embodiment Realize paper feed conspectus during printed on both sides.

In figure, 1 is paper feed, and 2 is handss paper feeding cassette paper feed, and 3 is PF paper feeds, LU paper feeds, and 4 is vertical transfer, and 5 enter for carton 2 Paper, 6 is 1 paper feed of carton, and 7 is the first reversion transmission, and 8 is the second reversion transmission, and 9 is paper delivery, and 10 is direct paper delivery, and 11 are transfer With fixing transmission, 12 transmit for ADU.In the figure, thus it is shown that main frame difference carton realizes the paper road of duplex printing, and paper feed feelings Condition.

Automatic double-sided device paper feed unit is ADU, and the paper for exactly completing the printing of the first face is completed by automatic turning mechanism Turn-over, directly carries out the paper advance mechanism of the second face printing.Avoid artificial turn-over after being printed on one side and print the low essence of the second face efficiency The problem of degree difference.

In printed on both sides, recto is printed upon the front of paper, and verso is printed upon the reverse side of paper.Positive image After fixing, two-sided passage conveying of the paper in ADU returns again to para-position part.Then from para-position part again paper supply, form anti- Face image is simultaneously fixed.Convey and eject further along direct paper delivery passage.So in duplex printing, paper circulate and be transported to it is right Bit position, will not be deposited in the centre of transfer passage or ADU.This circulation canal is designed with into optimal paper path length And transmission speed, to realize maximum productivity when the most frequently used antiquarian (A4) is duplicated.

Can be with the paper of 4 A4 sizes of single treatment or the paper of 2 A3 sizes in ADU paper paths length.

As shown in figure 3, illustrating the high speed compound machine in this utility model specific embodiment in dual-colour digital code printing equipment Cut-away view.

High speed compound machine internal structure includes：

1st, intermediate transfer portion.2nd, fixing section.3rd, paper collection part.4th, reversion/paper delivery portion.5th, ADU portions.6th, paper feed portion.7th, it is photosensitive Tympanic part.8th, contraposition part.9th, charging part.10th, powdered ink collection portion.11st, vertical transfer portions.12nd, handss send portion.13 development sections.14th, write Portion.15th, powdered ink supply department.16th, scanner section.17th, operating portion.

As shown in figure 4, illustrating the high speed compound machine in this utility model specific embodiment in dual-colour digital code printing equipment The schematic diagram of the first face printing of middle paper.

Send portion or paper feed portion to enter the paper of main frame by handss, paper para-position is carried out by contraposition part.Pass through second turn again Stamp roller, the effect of the second transfer lower roll and carbon dust is adsorbed onto into paper surface.Fixation unit is entered afterwards, makes carbon dust be fixed on paper Open surface.First face is completed after fixing just to printing.Paper is transported to reversion discharge port, if printing list faces up Printing, then printed paper be directly transferred to paper collection part by inverting paper delivery portion, complete printing.

As shown in figure 5, illustrating the high speed compound machine in this utility model specific embodiment in dual-colour digital code printing equipment The schematic diagram of the second face printing of middle paper.

Send portion or paper feed portion to enter the paper of main frame paper feed port by handss, paper para-position is carried out by contraposition part.Pass through again Carbon dust is adsorbed onto paper surface by the second transfer upper roller, the effect of the second transfer lower roll.Fixation unit is entered afterwards, makes carbon dust solid It is scheduled on paper surface.First face is completed after fixing just to printing.Paper is transported to reversion discharge port, if printed two-sided Printing, then printed paper ADU portions are entered into by the inversion section for inverting paper delivery portion and carry out turn-over, be again introduced into after turn-over into Paper mouth, and pass through, contraposition part, the second transfer section, fixing section, complete the printing in the second face, finally by the transmission of reversion paper delivery portion To paper collection part, printed on both sides is completed.

As shown in Figure 6, thus it is shown that red when this utility model is affixed one's seal by the arrangement simulation of computed in software red and black site Saturating black design sketch of affixing one's seal.This utility model is automatically formed to affix one's seal and is popular in the site of black effect and folds by the double exposure technology in PS Plus.It can be seen that beautiful in colour, bronze red effect is projected, and colour complies fully with requirement.User oneself row is not needed Design double exposure or red chapter Vitrification management during version, it is only necessary to which electronic seal is called (authorized by manager), and on operation circle Face moves to the position for needing to affix one's seal.

As shown in fig. 7, for illustrate the on line in this utility model specific embodiment in dual-colour digital code printing equipment from The structural representation of dynamic centre-stitched device.In figure, 1 is the paper passed through from P1, and 2 is the paper passed through from equipment before, and 3 are Door, 4 is clamp, and 5 is jackknife, and 6 is that saddle binds retainer, and 7 is pamphlet paper disc, and 8 is attachment means.After completing printed on both sides Official document, can enter bookbinding ADF processor (not shown) through check plate (not shown) determine bookbinding position Put, check plate can control stop position according to the yardage of setting by motor (not shown), it is ensured that during binding Center of the ailhead (not shown) against paper.Paper can be rushed after stopping by paper by cardboard (not shown) is rushed Together, step up, latter two ailhead simultaneously complete bookbinding action.Next step is stapled to move to folding position to paper with check plate Put, stapled paper is pushed folding roller by jackknife 5, complete to fold.

According to this utility model, it is the two color printing that double-colored group of R, K realizes official document by two colour cells.

According to this utility model, fileinfo is converted into the print control unit lattice information of correspondence different colours (rasterization information), and the image of these dot matrix is converted into into two kinds of R, K monochromatic, different net angles dot matrix images and is located respectively Reason, and formed after official document image again by transfer, fixing output eventually through superposition.

According to this utility model, by automatic double-sided device to completing the paper automatic turnover that the first face is printed, directly carry out The printing in the second face, is automatically obtained printed on both sides.

According to this utility model, effectively prevent artificial turn-over after being printed on one side and print the low low precision of the second face efficiency Problem.By rationally arranging paper path length and the ADU (two-sided device unit) of the automatic double-sided device, in printed on both sides, Recto is printed upon the front of paper, and verso is printed upon the reverse side of paper.After positive image is fixing, paper is along ADU Two-sided passage conveying, returns again to para-position part, then, from para-position part again paper supply, forms verso images and is fixed, further along Directly paper delivery passage is conveyed and is ejected.So, in duplex printing, paper circulates and is transported to para-position part, will not be deposited in The centre of transfer passage or ADU.By this circulation canal is designed with optimal paper path length and transmission speed, with Just maximum productivity is realized when the most frequently used antiquarian (A4/8.5x11) is duplicated.

In this utility model, the ADU paper paths length of high speed compound machine can be with 4 A4/8.5x11 chis of single treatment The paper of very little paper or 2 A3/11x17 sizes.

Wherein, after fixing, paper is transported to flip portion to paper, and printing surface (the 1st face) is upward.

After fusing nip, the linear velocity of flip portion is switched at a high speed paper, and paper is conveyed.

In the scheduled time after the induction apparatuss of flip portion detect paper, transfer roller rotates in the opposite direction, and court goes out Transmit paper in paper direction.

Then, front (the 1st face) and reverse side (the 2nd face) are reverse, and paper is ejected.

In Fig. 1 to Fig. 7, the improved structure relevant portion of this utility model dual-colour digital code printing equipment is made that in detail Description, those skilled in the art will appreciate that the description is exemplary, this utility model is not limited in this and is embodied as Among mode, meanwhile, those skilled in the art will appreciate that the content not being described in detail in this utility model belongs to this Known content in field, without the need for repeating herein.

According to this utility model, it is the two color printing that double-colored group of R, K realizes official document by two colour cells.

According to this utility model, fileinfo is converted into the print control unit lattice information of correspondence different colours (rasterization information), and the image of these dot matrix is converted into into two kinds of R, K monochromatic, different net angles dot matrix images and is located respectively Reason, and formed after official document image again by transfer, fixing output eventually through superposition.

According to this utility model, by automatic double-sided device to completing the paper automatic turnover that the first face is printed, directly carry out The printing in the second face, is automatically obtained printed on both sides.

According to this utility model, effectively prevent artificial turn-over after being printed on one side and print asking for the second low low precision of face efficiency Topic.By rationally arranging paper path length and the ADU (two-sided device unit) of the automatic double-sided device, in printed on both sides, very The several pages of fronts for being printed upon paper, verso are printed upon the reverse side of paper.After positive image is fixing, paper is double in ADU Face passage conveying, returns again to para-position part, then, from para-position part again paper supply, forms verso images and is fixed, further along straight Pick out paper passage to convey and eject.So, in duplex printing, paper circulates and is transported to para-position part, will not be deposited in defeated Send the centre of passage or ADU.By this circulation canal is designed with optimal paper path length and transmission speed, so as to Maximum productivity is realized when the most frequently used antiquarian (A4/8.5x11) is duplicated.

In this utility model, the ADU paper paths length of high speed compound machine can be with 4 A4/8.5x11 chis of single treatment The paper of very little paper or 2 A3/11x17 sizes.

Wherein, after fixing, paper is transported to flip portion to paper, and printing surface (the 1st face) is upward.

After fusing nip, the linear velocity of flip portion is switched at a high speed paper, and paper is conveyed.

In the scheduled time after the induction apparatuss of flip portion detect paper, transfer roller rotates in the opposite direction, and court goes out Transmit paper in paper direction.

Then, front (the 1st face) and reverse side (the 2nd face) are reverse, and paper is ejected.

Detailed description has been made to this utility model above according to specific embodiment, however, the description is exemplary , this utility model is not limited only in embodiment, and those skilled in the art are fully able to right according to this utility model teaching Which makes various forms of replacements or change, on the premise of without departing from this utility model objective and spirit, every to this reality The content covered by this utility model is accordingly to be regarded as with the new various changes made and modification, the model of claims is each fallen within Within enclosing.

Claims (1)

1. a kind of dual-colour digital code printing equipment, can realize that auto double color prints, it is characterised in that including double-colored group of R, K, R colors Developer, K color developers, transfer belt, the first transfer roll, the second transfer roll, print control unit, two photosensitive drums, two laser Device, fixation unit, also including automatic double-sided device and automatic centre-stitched device；Paper enters dual-colour digital code printing dress by paper feeding cassette Put, developer, transfer belt, transfer roll, photosensitive drums, laser instrument and fixation unit is passed sequentially through to complete the printing of the first face of paper, Reenter the printing that dual-colour digital code printing equipment completes the second face of paper again after automatic double-sided device；Complete printed on both sides Paper is through automatic centre-stitched device, specifically through binding ADF processor, rushing cardboard, attachment means and folding roller, final complete Into the printing and bookbinding of paper.