CN101097419A - Image forming apparatus - Google Patents
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- CN101097419A CN101097419A CNA2007101232504A CN200710123250A CN101097419A CN 101097419 A CN101097419 A CN 101097419A CN A2007101232504 A CNA2007101232504 A CN A2007101232504A CN 200710123250 A CN200710123250 A CN 200710123250A CN 101097419 A CN101097419 A CN 101097419A
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Abstract
An image forming apparatus to form an image on a sheet by permanent color toner and decolorizing toner to be decolorized includes a detector unit to detect whether a predetermined identification image to indicate execution of a image forming process by decolorizing toner is formed or not at least on either of a first side and a second side of a sheet which is a subject of the image forming process to be executed and a process controlling unit, when the predetermined identification image is detected by the detector unit, to prohibit the image forming process by permanent color toner on a sheet side on which the predetermined identification image is detected.
Description
The cross reference of related application
The present invention is contained in the related subject of the Japanese patent application submitted to the Japan special permission Room in Japanese patent application 2006-182129 number submitted to the Japan special permission Room on June 30th, 2006 and on June 30th, 2006 2006-182130 number, and its full content is hereby expressly incorporated by reference.
Technical field
But the present invention relates to a kind of can based on the colour killing toner of fast colours toner and colour killing with paper on carry out image processing system and figure that image forms and form process control method.
Background technology
A kind of definition technique that is applicable to the image processing system of intermediate transfer mode is disclosed in Japanese patent laid-open 11-212338 communique.In this image processing system, by the developing apparatus of rotation mode, a kind of color a kind of color ground development one by one yellow (Y), pinkish red (M), cyan (C) and black (K) four looks on photosensitive drums, thus form toner image.So, the toner image that one by one is formed on the photosensitive drums of a kind of color of a kind of color is transferred on intermediate transfer belt on the primary transfer position.
Then, photosensitive drums and intermediate transfer belt are with certain timing (timing) rotation four times, thereby on intermediate transfer belt, form the panchromatic toner transferred image of four looks stack, this toner transferred image by the secondary transfer printing device by secondary transfer printing to as the transfer printing of recording medium with on the paper.The transfer printing that secondary transfer printing has a toner image after the stack with paper in fixing device by after the photographic fixing, be taken out to the outside.
At present, as the product that uses the colour killing toner, exemplify the device of structure that black toner developer with monochrome printers or monochromatic MFP is replaced into the developer of colour killing toner.But, owing to be specialized equipment, so when the duplicating of the purposes that is used for preferably not using the colour killing toner (needing the printing etc. of the document of long preservation), must use can use the fast colours toner to carry out other printer or MFP of lettering.
With the colour killing toner be formed with image, through colour killing handle with paper at first sight and new paper be difficult to difference.If handle through colour killing in this wise and regenerate with paper on carry out forming based on the image of fast colours toner, then because this carried out image based on the colour killing toner with paper forms and handle and can't utilize again.
Summary of the invention
The invention provides a kind of when utilize again use the colour killing toner be formed with image use paper the time, prevent image processing system by fast colours toner formation image.
According to a first aspect of the invention, but provide a kind of can based on the colour killing toner of fast colours toner and colour killing with paper on form the image processing system of image, in this image processing system, comprise: test section, as should carries out image form the object handled with the one side at least among first and second of paper on, detect the recognition image that whether is formed with regulation, the recognition image of afore mentioned rules is used to represent that the image that has carried out based on the colour killing toner forms processing; And processing controls portion, when above-mentioned test section detects the recognition image of afore mentioned rules, forbid the recognition image that detects this regulation with paper on carry out forming and handle based on the image of above-mentioned fast colours toner.
And, according to a further aspect in the invention, but also provide a kind of can based on the colour killing toner of fast colours toner and colour killing with paper on form the image processing system of image, in this image processing system, comprise: model distinguishing portion, be used to distinguish and form processing for the image that should carry out, selected which pattern in first pattern and second pattern, above-mentioned first pattern is meant that the image that carries out based on the fast colours toner forms the pattern of handling, and above-mentioned second pattern is meant that the image that carries out based on the colour killing toner forms the pattern of handling; And recognition image formation portion, when above-mentioned model distinguishing portion picks out when having selected above-mentioned second pattern, in being picked out the image formation processing of having selected this second pattern, be formed with based on the image of colour killing toner with paper on form the recognition image of regulation, the recognition image of this regulation is used to represent to have carried out image based on the colour killing toner and forms and handle.
And then, according to a further aspect in the invention, but provide a kind of can based on the colour killing toner of fast colours toner and colour killing with paper on the image that forms in the image processing system of image form process control method, form in the process control method at this image, may further comprise the steps: as should carries out image form the object handled with the one side at least among first and second of paper on, detect the recognition image that whether is formed with regulation, the recognition image of afore mentioned rules is used to represent that the image that has carried out based on the colour killing toner forms processing; And when above-mentioned test section detects the recognition image of afore mentioned rules, forbid the recognition image that detects this regulation with paper on carry out forming and handle based on the image of above-mentioned fast colours toner.
And, according to a further aspect in the invention, but provide a kind of can based on the colour killing toner of fast colours toner and colour killing with paper on the image that forms in the image processing system of image form process control method, form in the process control method at this image, may further comprise the steps: distinguish for the image that should carry out to form processing, selected which pattern in first pattern and second pattern, above-mentioned first pattern is meant that the image that carries out based on the fast colours toner forms the pattern of handling, and above-mentioned second pattern is meant that the image that carries out based on the colour killing toner forms the pattern of handling; And pick out when having selected above-mentioned second pattern when above-mentioned model distinguishing portion, in being characterized as the image formation processing of having selected this second pattern, be formed with based on the image of colour killing toner with paper on form the recognition image of regulation, the recognition image of afore mentioned rules is used to represent to have carried out image based on the colour killing toner and forms and handle.
Description of drawings
Fig. 1 is the summary section of the image processing system that relates to of expression one embodiment of the invention;
Fig. 2 is the skeleton diagram of the developing apparatus of expression rotation mode;
Fig. 3 is the skeleton diagram of the formation of expression rotary body drive unit;
Fig. 4 is the stereographic map of expression rotary body drive unit;
Fig. 5 is the skeleton diagram of the colour killing principle of expression colour killing toner (decolouring toner);
Fig. 6 is the block diagram that the summary of the image processing system that relates to of expression one embodiment of the invention constitutes;
Fig. 7 is the vertical view of expression to an example of the method for carrying out mark (marking) with paper;
Fig. 8 is expression another routine vertical view to the method for carrying out mark with paper;
Fig. 9 is the vertical view of an example again to the method for carrying out mark with paper;
Figure 10 is that expression is used for utilizing the process flow diagram that carries out the treatment scheme of using paper of lettering by the colour killing toner again;
Figure 11 is configured in the summary section of using the image processing system in the carton with detecting unit; And
Figure 12 is the summary section that detecting unit is configured in the image processing system in the ADU.
Embodiment
Below, with reference to the accompanying drawings embodiments of the invention are described in detail.
As shown in Figure 1, the image processing system that one embodiment of the invention relate to is applicable on the digital duplicating machine of electrofax mode or the MFP of intermediate transfer mode (MultiFunctional Peripheral, multi-function printer) etc.
On the periphery of photosensitive drums 12, dispose cleaning device 15, charging device 16, laser optics 17, developing apparatus 18 and primary transfer device 19 successively.Drum cleaning device 15 is used to remove the toner that remains in the drum surface.The current potential that charging device 16 makes the drum surface have regulation in the same manner.Laser optics 1 to by the bulging surface irradiation laser beam LB of identical charging, forms electrostatic latent image according to image information.Developing apparatus 18 will be formed with the bulging surface of electrostatic latent image and develop, and form the toner image of specified color.Primary transfer device 19 will be formed on the lip-deep toner image primary transfer of drum to intermediate transfer belt 13.
Developing apparatus 18 comprises: developing apparatus (fixedly developing cell) 21 is used to keep the developer 24 of black (K) toner (the fast colours toner of black); Rotary type developing device (rotary developing unit) 22 rotatably keeps color toner and colour killing toner.
Developing apparatus 21 on near the assigned position second developing location (the butt position between photosensitive drums 12 among Fig. 1 and the magnetic roller 27K) of photosensitive drums 12, but a butt in first developer 24 and second developer 31 is remained on second developing location on the photosensitive drums 12 discretely.
The developing apparatus 21 of black toner has the magnetic roller 27K that rotates and freely separate butt drum surface around pivot point 23.On the developing apparatus 21 of black toner, supply with black toner from black toner bottle 25 by the toner feed path.Black toner is compared with color toner, because use amount is more, so the developing apparatus 21 of black toner and the developing apparatus of color toner were arranged in 22 minutes.In addition, the colour killing toner here for example is a black.So,, form and handle, select arbitrarily with can being not limited to picture tone so can use the fast colours toner of black and in the colour killing toner any to carry out image because the color of colour killing toner is identical with black toner.
In addition, when the color of colour killing toner is identical with black toner, as can preferentially forming in the shape of the toner receptacle that the enterprising luggage of developer unloads: any the toner receptacle in developer 24 and the developer 31 can not be installed in developer 24 and the developer 31 another.As mentioned above, thus can prevent from the toner receptacle of colour killing toner and the toner receptacle of black toner are taken by mistake and installed.
Fig. 2 is the figure of detailed structure of the developing apparatus 22 of expression rotation mode, in Fig. 2, the developer of colour killing (e) (second developer) 31 is compared with the developer 28,29 and 30 (the 3rd developer) of other yellow (Y), peony (M) and cyan (C) (the fast colours toner beyond mutually different, the black), the capacity of developer is bigger, (Y)-(C) each central angle between reaching (C)-(M) between is set at α °, central angle alpha is smaller or equal to 90 °, preferably smaller or equal to 80 °.The developer 28~31 of shades of colour toner comprises magnetic roller 27Y, 27M, 27C and the 27e on the drum surface that selectively is connected to photosensitive drums 12.So, developing apparatus 22 rotatable either party and the 3rd developers that keep movably in first developer and second developer, and, move by this rotation and to make the developer of wanting move to first developing location (the butt position between photosensitive drums 12 among Fig. 1 and the magnetic roller 27Y) for photosensitive drums 12.
The lip-deep electrostatic latent image of drum that the toner of color (K, Y, M, C) of developing apparatus 18 by regulation will be formed on photosensitive drums 12 develops, and forms the toner image of specified color on the drum surface.
But, when selecting the colour killing toner, become " colour killing toner pattern ", " colour killing toner pattern " do not carry out and other toners between action and only form image independently by the colour killing toner.On the other hand, when using the fast colours toner and carry out image formation, be " fast colours toner pattern ",, perhaps select these patterns according to user's operation input according to view data as the lettering object.
Be formed on toner image on the photosensitive drums 12 by rotation, be transported to certain transfer position of primary transfer device 19 as the photosensitive drums 12 of rotary body.On this primary transfer position, on intermediate transfer belt 13, carry out primary transfer by the contact and the charging of rotation roller 35 as one of rotary body.By this primary transfer device 19, the toner image transfer printing of photosensitive drums 12 on intermediate transfer belt 13, and is formed the toner transferred image.
On photosensitive drums 12, the color of the corresponding toner image that forms, repeat once to form operation to the toner image of four rotations, and, the toner image that is formed on the photosensitive drums 12 is superposeed on intermediate transfer belt 13, thereby the toner transferred image that becomes kind of the color stack of a kind of color to four (when being one time, becomes duplicating of shades of colour monochrome, when being four times, become duplicating of four kinds of colors except that colour killing).
The intermediate transfer belt 13 of intermediate transfer device 14 is reeled the ground frame between driven roller 36 and driven voller 37.Intermediate transfer belt 13 constitutes following such rotary body: from transfer roll 35, the winding up roller 38 arrival driven vollers 37 of driven roller 36 via primary transfer device 19, arrive driven rollers 36 from this driven voller 37 via the belt tension roller 40 that constitutes belt tension mechanism 39 then.
Between the driven roller 36 and primary transfer roller 35 that make intermediate transfer belt 13 with driving, be provided with band cleaning device 44.The band cleaning device 44 around fulcrum 46 free rotary ground supportings external (circumscribed) in the cleaning balde 45 of intermediate transfer belt 13.Cleaning balde 45 carries out elastic force ground face contact by the spring force of spring members 47 to middle transfer belt 13, thereby clean and remove the toner on the intermediate transfer belt 13, on the other hand, the discharge toner supply unit of the discharge toner that is removed by turning axle (spiral shaft) etc. is transported to discharges in the toner cartridge (not shown).
And band cleaning device 44 is provided with the spring force of antagonistic spring parts 47 and makes the cam mechanism 49 of cleaning balde 45 from middle transfer belt 13 separation.By this cam mechanism 49, when the toner transferred image formed, cleaning balde 45 was separated from middle transfer belt 13, and keeps non-contacting state.
And then the driven voller of intermediate transfer belt 13 37 constitutes idler rollers (idler roller), and and the secondary transfer roller 50 that is provided with of driven voller 37 subtends between constitute secondary transfer printing device 51.The secondary transfer roller 50 of secondary transfer printing device 51 contacts with paper with transfer printing as recording medium on the secondary transfer printing position, and by with the contacting and charging of secondary transfer roller 50, with the toner image secondary transfer printing on the intermediate transfer belt 13 to transfer printing with on the paper.
The secondary transfer roller 50 of secondary transfer printing device 51 is provided with in the mode that the driven voller 37 from middle transfer belt 13 freely separates butt, and when toner transferred image secondary transfer printing, secondary transfer roller 50 is external in intermediate transfer belt 13.On the other hand, in the time of beyond the secondary transfer printing, for example, when adjusting image overlay in the intermediate transfer belt 13 enterprising circumstances in which people get things ready for a trip when making, secondary transfer roller 50 is separated with intermediate transfer belt 13.By secondary transfer roller 50 is separated with intermediate transfer belt 13, thus can prevent with harmful effect feed through on intermediate transfer belt 13, be applied, as the toner image of primary transfer image.
On the secondary transfer printing position of secondary transfer printing device 51, the toner image of intermediate transfer belt 13 is used on the paper P to transfer printing by secondary transfer printing, wherein, be removed paper feeding cassette CS1 that this transfer printing is accommodated from main body cover 11 bottoms with paper P and the CS2, and carry along transport path 53.Dispose successively on this transport path 53 carry out along transport path 53 transfer printing with the contraposition roller 55 of the position adjustment of paper, transfer printing with paper on the secondary transfer printing toner image secondary transfer printing device 51, make by the fixing device 56 of the toner transferred image photographic fixing behind the secondary transfer printing and guiding door (guide gate) 57.By fixing device 56 will by the transfer printing after the toner image photographic fixing behind the secondary transfer printing with paper P from transport path 53 row's of being discharged to paper discs 58, and pile up.Row's paper disc 58 is formed on the top of main body cover 11.
On the other hand, not only can from paper feeding cassette, supply with paper, can also supply with from manual paper disc as the transfer printing of recording medium.Be directed to transport path 53 via paper supply path of navigation 59 in the front face side of contraposition roller 55 with paper from what manual paper disc was supplied with.
In addition, in present embodiment as shown in Figure 1, be positioned at rotary type developing device 22 though include the developer of colour killing toner, but also can be positioned on the position of black (K) developer, can according to the frequency of utilization of using the colour killing toner its installation be gone up in position by user self.
Motor-driven gear 63 is an one with the output shaft 62 of drive motor 61, perhaps is arranged on integratedly on the output shaft 62 of drive motor 61.This motor-driven gear 63 is by constituting the reduction gear 64 that reduction gearing multistage and that be installed in series is listed as, and engagement and running are connected in the middle follower gear 66 that is arranged on the conduct band driven wheel on the band driving shaft 65.As shown in Figure 4, band driving shaft 65 is connected in roller bolster 68 by middle follower gear 67.Roller bolster 68 supports the driven roller 36 of intermediate transfer belt 13 rotating integratedly.
Multi-stage speed-reducing gear mechanism 64 constitutes elementary reduction gearing row by the drum driving gear 74 that is engaged in motor-driven gear 63, and by constituting partial intermediate reduction gear gear row with this drum driving gear 74 middle driven wheel 71 that is wholely set and the middle follower gear 67 that is engaged in this driven wheel 71.The middle follower gear 67 of intermediate reduction gear gear row rotates the middle follower gear that drives as the driven roller 36 that makes intermediate transfer belt 13 and plays a role.
And, the driven wheel 73 of last level and middle follower gear 66 one of intermediate reduction gear gear row, perhaps be wholely set middle follower gear 66 at intermediate reduction gear gear row, level driven wheel 73 directly is engaged in the follower gear 74 of last level at last, and the reduction gearing of last level is listed as the reduction gearing row that drive usefulness as photosensitive drums 12.The driven wheel 73 that constitutes the reduction gearing row of last level constitutes one with middle follower gear 66, and simultaneously, this driven wheel 73 directly is engaged in the follower gear 74 that constitutes drum driving gear.So, middle follower gear 66 is engaged in drum driving gear 74 by driven wheel 73.Follower gear 74 as drum driving gear is contained on the bulging driving shaft 75 by axle.In addition, in Fig. 3, each gear that constitutes the multi-stage speed-reducing gear row of reduction gear 64 is represented by dashdotted pitch circle.
The front face side of drum driving shaft 75 is provided with drum and drives shaft coupling 76, drives shaft coupling 76 by this, and drum driving shaft 75 is connected in bulging bolster 77.On the back side of drum driving shaft 75, be provided with the big flying wheel of the moment of inertia 78 rotating integratedly.Flying wheel 78 constitutes by metal foils such as plate-like ground formation zinc.On drum bolster 77, support thoughts light drum 12 rotating integratedly, drive by the rotation of rousing driving shaft 75 and rotate driving photosensitive drums 12.According to being contained in the moment of inertia of the flying wheel 78 on the bulging driving shaft 75 by axle, the rotation of photosensitive drums 12 drives that can not produce rotation unstable and can stablize and carry out reposefully.
On this rotary body drive unit 60, be used to make middle follower gear 66 that intermediate transfer belt 13 drives and last level driven wheel 73 be one or constitute one, and be installed on the band driving shaft 65, make to be installed in the last level driven wheel 73 of band on the driving shaft 65 and directly to be engaged in the drum driving gear (last level follower gear) 74 that is installed on the bulging driving shaft 75.And, by flying wheel 78 is installed on the bulging driving shaft 75, thereby can make the drum of photosensitive drums 12 drive stabilization.And then the driven intermediate transfer belt 13 of upstream side that drives at the drum of photosensitive drums 12 is influenced by the inertia effect of flying wheel 78 also, thereby can be with driving, thereby can realize stabilization greatly by the inertia quantitative change that band drives.
This photoreceptor drive unit 60 in series constitutes the multistage of reduction gear 64 in a series of mode, for example three grades reduction gearing is listed as, and directly be engaged in the middle follower gear 66 (73) of intermediate transfer belt 13 and the drum driving gear 74 of photosensitive drums 12, and, flying wheel 78 is installed on the bulging driving shaft 75 of photosensitive drums 12.Therefore, can make the drum driving of photosensitive drums 12 and the band of intermediate transfer belt 13 drive both sides' change synchronization, thereby can act on the effect (effect of inertial force) of flying wheel, make the driving stabilization both sides.
And, in the downstream of the middle follower gear 66 (73) that is used to make intermediate transfer belt 13 to drive, make the photosensitive drums 12 that is rotated driving with bigger reduction gear ratio carry out deceleration.Therefore, can continue to drive from drive motor 61 to photosensitive drums the multistage reduction gearing row of 12 reduction gear 64 with slow reduction gear ratio.
Each gear that constitutes the reduction gearing row of reduction gear 64 is cross helical gear or the spiral gear that forms by ester mouldings such as injection molding of plastics.Can use the polyacetal resin of dimensional stability, self lubricity, formability brilliance as the material of gear.And, also can use little polyimide of thermal expansion or the such synthetic resin of polycarbonate.And then, thereby also can use in polycarbonate filling glass reinforcing fiber to improve the resin of intensity and rigidity.And, also can use the material that in polycarbonate, mixes fluoroplast and improve self lubricity.
When each the gear ester moulding with reduction gearing row is cross helical gear, suppress in order to try one's best because the vibration that gearing mesh causes and the module of gear is formed little module below 0.5 littlely.With the gear meshing width setup of reduction gearing row is below the above 25mm of 12mm, preferably is about 18mm in actual machine.In view of the above, the vibration that causes by engagement can be suppressed lessly, and the noise of gear can be reduced.In the gearing mesh width is cross helical gear more than the 25mm, can't obtain the good pattern draft of precision, and, cause the difficulty of gear making owing to the shaping difficulty of gear, simultaneously, when the gearing mesh width is 12mm when following, be difficult to suppress the gear vibration that causes owing to engagement lessly.
Fig. 5 is the figure that is used to illustrate the colour killing principle of colour killing toner.In the colour killing toner, be added with " depigmenting agent " except that " pigment " and " developer ".Pigment is by carrying out combining of molecule and Show Color with developer, but if heating or add solvent, then bond rupture and color disappear.At this moment, thereby the developer after the bond rupture is combined the combination again that prevents pigment and developer with depigmenting agent, and keeps the state that color disappears, with the paper after printing under the environment more than the set point of temperature, put into several hours erasing device of heating and heat, from and become blank sheet of paper.
As shown in Figure 1, in the image processing system 1 that present embodiment relates to, dispose a pair of detecting unit 32 and detecting unit 33 (second test section) near with the upstream side of the contraposition roller 55 on the paper transport path.In addition, detecting unit 32 and detecting unit 33 for example with the mode that can read be configured in and carry with the paper transport path with near the middle position on the direction of the throughput direction quadrature of paper.Detecting unit 32 and 33 is used to detect the lettering state with paper (whether finishing using, whether use, whether be printed on the state of the symbol etc. of appointment) of each image surface side and non-image side.In detecting unit 32 and detecting unit 33, use optical sensor etc. is for example arranged.
In addition, in present embodiment as shown in Figure 1, include developer 31 variable black (K) developers 24 that are changed to of the colour killing toner that is positioned at rotary type developing device 22.That is, for the high user of the frequency of utilization of using the colour killing toner by the user, owing to the developer 31 that includes the colour killing toner can be transformed into black (K) developer 24, thus it all is adjustable for every user.At this, contain the developer 31 of colour killing toner and the method for black (K) developer 24 can be realized by two developers are made identical profile as convertible.So, preferably on developing apparatus 21 keep high one of frequency of utilization in developer 31 and the developer 24.
In the present embodiment, the developer 31 of colour killing toner is mounted in the revolving developing apparatus 22, and, with the capacity of toner receptacle in the developer 31 of colour killing toner (any in first and second the developer), toner storing with the developer 28~30 (the 3rd developer) of color toner in, the capacity of the receptacle of each toner of toner storing compares big mode and set.So, constitute: the capacity of the developer of colour killing toner is compared greatly with the developer capacity of color toner.In view of the above, be not only and consider the structure of using monochromatic user,, also can guarantee the interchangeability of black toner developer and colour killing toner developer even for the user who uses the colour killing toner to Duo than common black toner.That is, by colour killing toner developer is set on the position of black toner developer, thus the copying speed can accelerate the colour killing toner and develop the time.In view of the above, when for color photocopying, owing in revolver (revolver), dispose four kinds of colors, so can keep speed.
And, even for the bigger user of the usage rate of colour killing toner, by conversion colour killing toner developer 31 and black toner developer 24, and in developing apparatus 21, keep developer 31, thereby can supply with supply colour killing toner the bottle from jumbo toner.
That is, be the image processing system that forms coloured image by the photosensitive drums rotation four times of a developing apparatus with the such structure of YMCK+ colour killing toner.And then, in revolving developing apparatus, have in the image processing system of four developers of YMC+ colour killing toner, because the consumption of monochromatic scheme agent is more than color toner, so the developer capacity of the developer of black and colour killing toner is more than the capacity of color developer, in view of the above, for using monochromatic more user, can reduce the exchange frequency of consumables.
In addition, the developer that is kept by developing apparatus 21 (for example, the capacity of toner receptacle developer 24), toner storing with the developer that is kept by developing apparatus 22 (for example, developer 31) in, the capacity of the toner receptacle of toner storing compares big mode and set.Thus, can guarantee the corresponding toner capacity of frequency of utilization with each toner of user, thereby help to reduce maintenance cost etc.In addition, when constituting: developer 31 is maintained at developing apparatus 21 sides, and when developer 24 is maintained at developing apparatus 22 sides, preferably the capacity of the toner receptacle of developer 31 is set to compare big mode with the capacity of the toner receptacle of developer 24.
Fig. 6 is used for the functional block diagram that the image processing system function to present embodiment describes.Present embodiment relates to image processing system and comprises: model distinguishing portion 901, image adjustment part 902, recognition image formation portion 903, test section 904, sheet feed section 905, processing controls portion 906, CPU 801 and storer 802 again.
The image that image adjustment part 902 should form on paper is compared little size with the regulation zone that can be formed image by image processing system on paper and is formed to be contracted to.
Recognition image formation portion 903 is when picking out in model distinguishing portion 901 when having selected second mould, during image after distinguishing this second pattern of selection forms and handles, be formed with based on the image of colour killing toner with paper on, be formed for representing to have carried out forming the recognition image of the regulation of handling based on the image of colour killing toner by the colour killing toner.And, recognition image formation portion 903 with image processing system in on the direction of paper throughput direction quadrature with the paper central portion near or with the paper end near on form the recognition image of stipulating.And recognition image formation portion 903 can constitute in the outside of the image after being dwindled by image adjustment part 902 and the regulation zone and form recognition image.
Processing controls portion 906 when detecting the recognition image of regulation by test section 904, forbid detection have this regulation recognition image with paper on carry out forming and handle based on the image of fast colours toner.And, processing controls portion 906 picks out when having selected second pattern when the recognition image that is detected regulation by test section 904 and by model distinguishing portion 901, can detection have this regulation recognition image with paper on carry out image based on the colour killing toner and form and handle.And, processing controls portion 906 can undertaken again by sheet feed section 905 again paper supply with paper on carry out forming processing based on the image of fast colours toner.
Below, the effect of the image forming part 10 that present embodiment is related to describes.
Driving by image forming part 10 begins, and is charged by the bulging surface of 16 pairs of photosensitive drums 12 of charging device, so that the regulation current potential on drum surface is identical.
Carried out with necessary potential on the bulging surface of identical charging by charging device 16, correspondence image information from laser optics 17 illuminating laser beam LB, and is carried out the light beam exposure, thereby form electrostatic latent image on the drum surface.The resolution of the corresponding regulation of image information is 600dpi and GTG for example, is transferred out in the main frames (not shown) such as never illustrated principal computer or personal computer.
On the other hand, develop by developing apparatus 18 then in the bulging surface that is formed with the photosensitive drums 12 of electrostatic latent image, and form the toner image of specified color on the drum surface.
Particularly, for example, develop, thereby form toner image based on black toner by the bulging surface of 21 pairs of photosensitive drums 12 of developing apparatus of black toner.When in the developing apparatus 21 at black toner the bulging surface of photosensitive drums 12 being developed, the developing apparatus 22 of color toner keeps the state with the bulging surface isolation of photosensitive drums 12.
The toner image that is formed on the black on the photosensitive drums 12 by the transfer drum 35 of primary transfer device 19 contact and charging by primary transfer to intermediate transfer belt 13.
After on the intermediate transfer belt 13 toner image on the drum surface that is formed on photosensitive drums 12 being carried out transfer printing, remove the toner on the drum surface that remains in photosensitive drums 12 by drum cleaning device 15.
Remove from the residual toner of photosensitive drums 12 by drum cleaning device 15, the photosensitive drums 12 after being cleaned is delivered to charging device 16 once more, repeats to the charging on drum surface, light beam exposure, the development based on laser radiation, the primary transfer of toner image.Photosensitive drums 12 correspondences are formed on the overlay color number of the toner transferred image on the intermediate transfer belt 13, and rotation is once to four times, and the development that repeats toner image forms operation.
The toner image that is formed on successively on the photosensitive drums 12 carries out primary transfer by the transfer printing effect of primary transfer device 19, so that become the state of mutual superposition image on intermediate transfer belt 13.
As shown in Figures 2 and 3, photosensitive drums 12 and intermediate transfer belt 13 be because the motor-driven power of drive motor 61, a series of reduction gearing row by multistage series connection shape and being driven simultaneously.Compare with intermediate transfer belt 13, photosensitive drums 12 is carried out gear reduction in the downstream of reduction gearing row and drives.
On the primary transfer position, by primary transfer device 19, the toner image to four looks (removing the colour killing toner) of the same colour of yellow (Y), peony (M), cyan (C), black (K), colour killing (e) is by transfer printing is on intermediate transfer belt 13 successively, and the toner transferred image of mutual superposition is formed on the intermediate transfer belt 13 that rotates simultaneously with photosensitive drums 12.Then be transported to the secondary transfer printing position by primary transfer device 19 by the toner transferred image of the stack of primary transfer on intermediate transfer belt 13, at this, the contact and the charging of the transfer roll 50 by secondary transfer printing device 51, with the toner transferred image secondary transfer printing of the stack after the primary transfer to carrying transfer printings with on the paper along transport path 53.
The transfer roll 50 of secondary transfer printing device 51 the primary transfer toner image is formed on the intermediate transfer belt 13 during, keep the state separate with intermediate transfer belt 13.
The contact of the transfer roll 50 by secondary transfer printing device 51 and charging and from middle transfer belt 13 to transfer printing with paper on after the secondary transfer printing toner image, remain on the intermediate transfer belt 13 toner and remove after being cleaned by band cleaning device 44.The intermediate transfer belt 13 of removing residual toner is delivered to the primary transfer position once more.On the primary transfer position, by intermediate transfer device 19 with the toner image of photosensitive drums 12 once more primary transfer to intermediate transfer belt 13, repeat transfer printing circulation next time.
On the other hand, on the transfer position of secondary transfer printing device 51, by the contact of transfer roll 50 and the transfer printing effect of charging, the toner image of intermediate transfer belt 13 is arrived transfer printing with after the paper by secondary transfer printing, this transfer printing is carried along transport path 53 with paper, and is transported to fixing device 56.In fixing device 56, by paired hot-rolling to being heated by the toner image behind the secondary transfer printing, and by photographic fixing transfer printing with paper on.
Photographic fixing has the transfer printing behind the toner image then to be transferred along transport path 53 with paper, is expelled to paper disc 58 successively via guiding door 57, thereby is deposited on this row's paper disc 58.
In addition, supplying with transfer printing paper to secondary transfer printing device 51 carries out via contraposition roller 55 from paper feeding cassette CS1, CS2 or manual paper disc 81.
In image forming part 10,, can drive the intermediate transfer belt 13 and the photosensitive drums 12 of intermediate transfer device 14 simultaneously by motor-driven power from drive motor 61.The reduction gear 64 that constitutes rotary body drive unit 60 in series constitutes by a series of multi-stage speed-reducing gear row, and, directly mesh with the drum driving gear 74 of driving photosensitive drums 12 owing to drive middle the follower gear 66 and 73 of intermediate transfer belt 13, so make the operation of intermediate transfer belt 13 and photosensitive drums 12 usually and rotate shakiness and carry out simultaneously.Therefore, can improve color stack precision, and can reduce owing to unstable beat (jitter) or the misalignment that causes on the stack toner transferred image on the intermediate transfer belt 13 of rotation.
In addition, the image processing system that relates to of present embodiment constitutes: the print media (sheet) that forms image by the colour killing toner also can be used in image based on the colour killing toner next time again and form and handle.Therefore, when carrying out forming, represent by the colour killing toner lettering face to be carried out the mark that image forms to being used to paper based on the image of colour killing toner.Fig. 7~Fig. 9 is the synoptic diagram of an example of the mark method when using the colour killing toner to carry out mark with paper.
Particularly, when image forming part (recognition image formation portion) 10 has been selected " colour killing toner pattern (second pattern) " when being picked out by model distinguishing portion 901, handle distinguishing that the image of selecting this colour killing toner pattern forms, be used to represent that with paper the image that carries out based on the colour killing toner forms the mark of handling based on the image of colour killing toner being formed with.
Fig. 7 is with the synoptic diagram that carries out an example of mark on four jiaos of paper by the roughly foursquare β image of lettering (recognition image of regulation).With will with the paper end as carry with paper and the image processing system of decision with the mode of the benchmark of the position of paper in, according to mark method as shown in Figure 7, owing to be certain as the position on the main scanning direction of the symbol that carries out lettering on the end side of paper substrate standard at least, so the allocation position of the sensor of this symbol of detection can be specified on the assigned position.
And, Fig. 8 be with the middle position on the throughput direction (so-called sub scanning direction) of paper and with the middle position on the direction (so-called main scanning direction) of the throughput direction quadrature of paper on, carry out the synoptic diagram of an example of mark by the roughly foursquare β image of lettering.With will with the paper middle position as carry with paper and the image processing system of decision with the mode (the paper mode is led in so-called central authorities) of the benchmark of paper position in, according to mark method as shown in Figure 8, owing to be certain as the position on the main scanning direction of the symbol that carries out lettering on the middle position of paper substrate standard at least, so the allocation position of the sensor of this symbol of detection can be specified on the assigned position.
In addition, Fig. 7 and mark method shown in Figure 8 constitute: when using the colour killing toner to carry out lettering with paper, carry out mark on the outside in the lettering zone of this usefulness paper.
And, mark as shown in Figure 9 is following this method: by image adjustment part 902 will be based on the mark object of colour killing toner, be that image-region is contracted to and compares little size and lettering with the regulation zone (dotted line among Fig. 9) that can be formed image by image forming part 10 on paper to on the paper, simultaneously, in the white space that dwindles the outside of handling the lettering image that obtains by this (in the zone of the outside of the image after dwindling and regulation), carry out mark by image forming part 10.In view of the above, in the scope in confined lettering zone, even, also can not damage image, and can carry out above-mentioned mark as the lettering object when carrying out on whole lettering zone lettering figure lettering like this when handling.
In the present embodiment, to being used to represent that having carried out the employed symbol of mark that image forms by the colour killing toner is illustrated for foursquare example roughly, still being not limited in this, also can be other figure or literal.In addition, can not impact (being convenient to detect), and have with the square of the limit that parallels with the paper throughput direction or to approach round-shaped β image be very effective the reading of symbol of printing in order to carry toward which direction with paper.
And, in the present embodiment, image forming part 10 being constituted the function that has as recognition image formation portion is illustrated, but be not limited in this, for example also can be, be provided for forming on paper the image forming part of the special use of recognition image separately, and carry out above-mentioned mark by this special-purpose image forming part.
In addition, in the present embodiment, for the paper of using that only carries out a mark, because no matter when selection during based on the lettering of colour killing toner, still when being judged as the colour killing lettering by detecting unit all need not, so consider it not to be carried out mark from the consumption of toner.
In order to use aforesaid image forming part, and carry out being undertaken the utilization again with paper (can carry out lettering once more) of lettering effectively,, carry out following control according to process flow diagram as shown in figure 10 based on the colour killing toner by the colour killing toner.
When the beginning double-sided copying (S101), confirm original copy size (S102) as the object of this duplicating.Next, according to the size of the original copy of being confirmed, decision is supplied with paper (S103) from which box.
Then, by detecting unit 32 detect on paper first lettering state (detection step) (S104), when on first, forming certain image (S104 uses), judge whether be formed on this first epigraph is colour killing toner (S105).After carrying out lettering by the colour killing toner, though in erasing device by the disappearing of colour killing with the paper image that detects by an unaided eye, in fact roughly also residual have a colourless cementing agent (binder).By by this cementing agent of reflective sensor, thereby can judge whether paying the colour killing toner.In the present embodiment and since can't be only by observation carry out that image based on the colour killing toner forms and colour killing distinguish it is the lettering that on which face, has carried out based on the colour killing toner with paper, so detect two-sided with paper by detecting unit.
When above-mentioned when distinguishing that the result is the lettering that has carried out based on the colour killing toner on first (S105 is), model distinguishing portion 901 distinguishes that whether the copy mode of this double-sided copying is any (S106) in colour and the monochrome.When being monochromatic (S106, monochrome), carry out forming processing (S107) based on the image of colour killing toner.
On the other hand, (S106 when the copy mode of this double-sided copying is colour, colored), again sheet feed section 905 will select once again to supply with the content of the box of paper carry out picture show (urge the control panel of setting which box again to show or the printer driver of client PC on the demonstration of setting again etc.), simultaneously, rule is according to the rules automatically carried out the selection again (S108 and S109) of box, returns step S104.Certainly, this box selects and can carry out according to user's operation input.
The result (S104) of the lettering state on first that is detected by detecting unit 32 with paper is (S104 when not forming any image on first, new), first face is carried out image form processing (S110), and on paper, toner image is carried out (S111) after the heat fixer, should carry out image to second face of this usefulness paper and form, image is formed on be delivered to ADU (Auto Duplex Unit) 70 (S112) with paper on this first.
Then, be (S112 uses) when on second, having formed what image when detect result with second lettering state of paper by detecting unit 33, whether the image that CPU 801 judgements are formed on this second is colour killing toner (S114).At this, when as should carries out image form the object handled with on first of paper and second arbitrary, when being formed for representing having carried out image based on the colour killing toner and forming the recognition image of the regulation of handling, judge the image that on the face that forms this recognition image, forms based on the colour killing toner.
At this, on second, form image (S114 based on the colour killing toner at usefulness paper, be), and (S115 when being " colour killing toner pattern (second pattern) " by the pattern that the duplicating that model distinguishing portion 901 picks out is handled, colour killing), CPU 801 is undertaken forming processing (S119) to second image with paper by the colour killing toner.So, when the recognition image that detects regulation by detecting unit and by model distinguishing portion 901 pick out selection for " colour killing toner pattern " time, processing controls portion 906 the recognition image that detects this regulation with paper on carry out image based on the colour killing toner and form and handle.
On the other hand, as (S114 with the image that do not form on second of paper based on the colour killing toner time, not) or duplicate the pattern of handling (first pattern) (S115 when not being " colour killing toner pattern ", other), to on second, be formed with and directly discharge (S116) with paper based on the image of colour killing toner, processing controls portion 906 will select once more to supply with and carry out picture with the content of the box of paper and show, simultaneously, rule is according to the rules automatically carried out the selection again (S117 and S118) of box, returns step S104.Certainly, this box selects and can carry out according to user's operation input.When the recognition image that detects regulation by detecting unit and by model distinguishing portion 901 pick out selection for " fast colours toner pattern " time, sheet feed section 905 carries out paper supply again from the fast colours box CS2 as the box of appointment again.In addition, the box CS2 of appointment herein represents box of for example putting in advance by new paper etc.So, processing controls portion 906 forbid detection have regulation recognition image with paper on carry out the fast colours toner image form to handle (processing controls step).
When not forming any image on second of paper (S113, new), on second of this usefulness paper, carry out predetermined picture and form and handle, make toner image heat fixer (S121), thus end process.
Each step in the processing in the above-mentioned image processing system is that the image stored by execute store 802 in CPU 801 forms program and realized.
In addition, in the above-described embodiment, be configured in near the example the upstream side of the contraposition roller 55 on the paper transport path and be illustrated, but be not limited in this being used to detect lettering status detection unit (test section) with first of paper and second.Also can constitute: for example, shown in the image processing system 1 ' as shown in Figure 11, the detecting unit 103 and the detecting unit 104 that will be used to detect with first the lettering state (whether being formed with the recognition image of regulation) of paper are configured in near the carton (paper supply unit), and second the lettering status detection unit 101 (first test section) that will be used to detect with paper is configured near the manual paper disc 81.In this case, first lettering state with paper is detected by detecting unit 103 (first test section) and detecting unit 104 (first test section) with the step that paper is arranged in carton at this, second lettering state is detected by detecting unit 101 when this uses paper from manual paper disc 81 supplies.
And, even for detecting for second lettering status detection unit of paper, do not need it must to be configured in near the upstream side of the contraposition roller on the paper transport path yet, as example image processing system 1 as shown in Figure 12 " in detecting unit 100 (second test section) shown in, also it can be configured in the ADU 70 with on the paper transport path.As mentioned above, the structure that detecting unit is configured in the ADU is compared with near situation about detecting unit being configured in the upstream side of the contraposition roller on the paper transport path, there is following advantage: the degree of freedom that has improved the allocation position etc. of detecting unit, and, be easy to adopt small-sized image processing system.
And, in the above-described embodiment, to detecting unit being configured in and being illustrated with the example on the direction of paper throughput direction quadrature with near the paper central authorities, but be not limited in this, also can be for example it is configured in and with on the direction of paper throughput direction quadrature with near the paper end.The print position of the recognition image that preferably will be corresponding forms by the colour killing toner on paper as described above and being provided with the allocation position with on the direction of paper throughput direction quadrature of detecting unit.
So,, can realize that by an image processing system image of color toner and colour killing toner forms, thereby can area is set wait and produce user-friendly advantage by reducing cost and dwindle according to present embodiment.And then, the utilization again with paper is controlled, so as can by exist undertaken by the colour killing toner lettering with paper on do not carry out the lettering of the toner beyond the colour killing toner, re-use efficient thereby improve with paper.
In the present embodiment, be illustrated implementing the situation that function of the present invention is recorded in device inside in advance, but be not limited in this, also can also the recording medium that stores identical function can be installed in the device with identical functions by in the network download auto levelizer.If the recording medium that can store the CD-ROM supervisor and can read for device as recording medium, then its form can be form arbitrarily.And also can be as described above that the function that obtains in advance by installing or downloading and device is inner OS (operating system) common actions realizes this function.
The embodiment by appointment has been described in detail the present invention, but those skilled in the art should be understood that: only otherwise deviate from the spirit and scope of the present invention, can carry out various changes and improvement to it.
According to the present invention as detailed above, provide a kind of technology: in the image processing system that the image that can carry out fast colours toner and colour killing toner forms, when utilize to use the colour killing toner again and be formed with image use paper the time, can prevent by fast colours toner formation image.
Description of reference numerals
1 image processing system, 10 image forming parts
11 main body covers, 12 photosensitive drums
13 intermediate transfer belts, 14 intermediate transfer devices
15 cleaning devices, 16 charging devices
17 laser opticses, 18 developing apparatus
19 primary transfer devices, 21 developing apparatus
22 rotary type developing devices, 23 pivot points
24 developers, 25 black toner bottles
27K magnetic roller 27Y magnetic roller
27M magnetic roller 27C magnetic roller
27e magnetic roller 28 developers
29 developers, 30 developers
31 developers, 32 detecting units
33 detecting units, 35 primary transfer rollers
36 driven rollers, 37 driven vollers
38 windings up roller, 39 belt tension mechanisms
40 jockey pulleys, 44 band cleaning devices
45 cleaning baldes, 46 fulcrums
47 spring members, 49 cam mechanisms
50 secondary transfer roller, 51 secondary transfer printing devices
53 transport paths, 55 contraposition rollers
56 fixing devices, 57 guiding doors
58 row's paper discs, 59 paper supply path of navigation
60 rotary body drive units, 61 drive motor
62 output shafts, 63 motor-driven gears
64 reduction gears, 65 band driving shafts
Follower gear in the middle of the follower gear 67 in the middle of 66
68 roller back shafts, 70 follower gears
Driven wheel 73 driven wheels in the middle of 71
74 roller driven wheels, 75 roller driving shafts
76 drive shaft coupling 77 roller back shafts
78 flying wheels, 81 manual paper discs
801 CPU, 802 storeies
901 model distinguishing portions, 902 image adjustment parts
903 recognition image formation portions, 904 test sections
905 sheet feed section 906 processing controls portions again
The CS1 colour killing is with box CS2 fast colours box
P transfer printing paper LB laser beam
Claims (10)
1. image processing system, but can based on the colour killing toner of fast colours toner and colour killing with paper on form image, comprising:
Test section, as should carries out image form the object handled with among first and second of paper at least simultaneously on, detect the recognition image that whether is formed with regulation, the recognition image of described regulation is used to represent that the image that has carried out based on the colour killing toner forms processing; And
Processing controls portion, when described test section detects the recognition image of described regulation, forbid the recognition image that detects this regulation with paper on carry out forming and handle based on the image of described fast colours toner.
2. image processing system according to claim 1 also comprises:
Model distinguishing portion, described model distinguishing portion is used to distinguish form for the image that should carry out and handles, selected which pattern in first pattern and second pattern, described first pattern is meant that the image that carries out based on the fast colours toner forms the pattern of handling, described second pattern is meant that the image that carries out based on the colour killing toner forms the pattern of handling
Wherein, pick out when having selected described second pattern when described test section detects the recognition image of described regulation and described model distinguishing portion, described processing controls portion detect this regulation distinguish image with paper on carry out image based on described colour killing toner and form and handle.
3. image processing system according to claim 1 also comprises:
Model distinguishing portion, described model distinguishing portion is used to distinguish form for the image that should carry out and handles, selected which pattern in first pattern and second pattern, described first pattern is meant that the image that carries out based on the fast colours toner forms the pattern of handling, and described second pattern is meant that the image that carries out based on the colour killing toner forms the pattern of handling; And
Sheet feed section again picks out when having selected described second pattern when described test section detects the recognition image of described regulation and described model distinguishing portion, carries out paper supply again from the paper feeding cassette of appointment,
Wherein, described processing controls portion undertaken again by described sheet feed section again paper supply with paper on carry out forming processing based on the image of fast colours toner.
4. image processing system according to claim 1, wherein,
Described test section is configured near the upstream side of using the contraposition roller on the paper throughput direction.
5. image processing system according to claim 1, wherein,
Described test section comprises first test section and second test section, and described first test section is configured near the paper supply unit, and detects the recognition image that whether is formed with described regulation on described with paper first; Described second test section is configured near the upstream side with the contraposition roller on the paper throughput direction, and detects the recognition image that whether is formed with described regulation on described with paper second.
6. image processing system according to claim 1, wherein,
Described test section comprises first test section and second test section, and described first test section is configured near the paper supply unit, and detects the recognition image that whether is formed with described regulation on described with paper first; Described second test section is configured in the ADU unit, and detects the recognition image that whether is formed with described regulation on described with paper second.
7. image processing system according to claim 1, wherein,
Described test section be configured in and with on the paper throughput direction orthogonal directions with near the paper central authorities.
8. image processing system according to claim 1, wherein,
Described test section be configured in and with on the paper throughput direction orthogonal directions with near the paper end.
9. image processing system, but can based on the colour killing toner of fast colours toner and colour killing with paper on form image, comprising:
Model distinguishing portion, be used to distinguish and form processing for the image that should carry out, selected which pattern in first pattern and second pattern, described first pattern is meant that the image that carries out based on the fast colours toner forms the pattern of handling, and described second pattern is meant that the image that carries out based on the colour killing toner forms the pattern of handling; And recognition image formation portion, when described model distinguishing portion picks out when having selected described second pattern, in being picked out the image formation processing of having selected this second pattern, be formed with based on the image of colour killing toner with paper on form the recognition image of regulation, the recognition image of described regulation is used to represent to have carried out image based on the colour killing toner and forms and handle.
10. image processing system according to claim 9, wherein,
The described image forming part of distinguishing forms described regulation recognition image by the colour killing toner.
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JP2006182130A JP4889382B2 (en) | 2006-06-30 | 2006-06-30 | Image forming apparatus and image forming processing control method |
JP2006182129A JP4746490B2 (en) | 2006-06-30 | 2006-06-30 | Image forming apparatus and image forming processing control method |
JP2006182130 | 2006-06-30 |
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JP2008009312A (en) | 2008-01-17 |
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