CN85105684A - Xerox - Google Patents

Abstract

Box developing of the standard form that Xerox is used and cleaning part, its pattern circulated for two weeks for whenever duplicating an imageable element, and included developing part and cleaning part.Its development part branch includes continuously and the device of imaging surface engaged developing, and its cleaning part comprises the rubbing board on cleaning imaging surface, and makes rubbing board and imaging surface clean engagement or disengaging imaging surface, the alternately device of two positions.Cleaning part comprises that also a collection removed the collecting box of the toner of using from imaging surface by rubbing board.Toner collecting box and development part divide isolates, thereby independent collection of toner of cleaning from the imaging surface separated with photographic developer.

Description

Xerox

The invention relates to the Xerox that duplicates source document on transfer sheet, the characteristics of duplicating machine of the present invention are: charging-transmission part of associating is arranged, and development-cleaning of the exposure of associating-discharge part and associating partly.

General xerox method, photosensitive material is fully charged, make its surface have uniform potential and sensitometric characteristic, the surface of charging sensitization partly, the light of the source document that need are duplicated resembles and exposes, make the data information zone of source document, be recorded on the photosensitive material with the electrostatic latent image form.Record on the photosensitive material after the electrostatic latent image, when it contacts with photographic developer, immediately image is shown.Photographic developer is the carrier granular composition that is stained with the toner particulate with triboelectricity.Latent image is drawn the toner particulate from carrier granular, and formation toner powder China ink image also is transferred on the transfer sheet.

Charging, exposure, develop, transmission, clean and discharge each partly all be Ambience luminescent material parts independently separately, if these individual components are combined, and have dual-use function, then the complicacy of copier structure and associating manufacturing cost can reduce greatly.Before this,, various imagination was arranged once, designed various associating parts, as using the Xerox of sensitization rotating cylinder for achieving the above object.

United States Patent (USP) 3,637 306(Cooper) is declared the developing that its Xerox uses and clean associating parts, can finish the function of developing or cleaning in the time of duplicating program appropriate.This is to have used the magnetic brush developing assembly of making developing device and washer in system.

United States Patent (USP) 3,647 293(Queener) also declares that its magnetic brush developing device is developing and cleans the associating parts, can be used as developing device and washer in system.During as the developing device, draw toner particles and be sent to photographic layer from carrier granular.During as washer, the brush revolution, the developing intermixture on the sweeping photographic layer is removed residual toner particles.

United States Patent (USP) 4,087, people such as 173(Sawaoka) Xerox of announcing has a rotating sensitization rotating cylinder, and duplicating machine comprises charging/transmission, exposure/discharge and developing/cleaning part.First of rotating cylinder changes finishes charging, exposure and developing, and second of rotating cylinder changes finishes transmission, discharge and cleaning.Charging/transmission part is finished charging and transfer function, and exposure/discharge component is finished exposure and discharging function, and developing/cleaning part is finished developing and cleaning function.

United States Patent (USP) 4,372, people such as 669(Fantuzzo) declare the duplicating machine of a same type, but do not use the sensitization rotating cylinder and replace the sensitization band that a circulation is moved.

The imagination of all above-mentioned duplicating machine has two kinds of functions owing to uniting around the same function element on image surface, therefore can save manufacturing expense.But same difficulty is all arranged, and that just is to use same device to finish developing and cleans two kinds of functions.Its result at the cleaning circulation time, from the residual toner that the image surface is cleaned, turns back to the new toner that adds in developing district and developing district again and mixes.A large amount of toners that washes down from visual surface duplicates photographic layer or is absorbed by photographic layer because of having the polarity of mistake, can not being transferred to.For example the sensitization insulation course is a negative electrode, and the toner of the positively charged utmost point can make image show and image is delivered on the transfer sheet.But residual toner is a negative electrode on the visual surface layer.The toner of the electronegative utmost point mixes with the new toner that needs the positively charged utmost point, and its result reduces the life-span of carrier.Moreover, because the incorrect polarity of toner in the developing device increases each round-robin datum quantity, and produce the cloud and mist of a large amount of toners and mud.Because carrier does not absorb the toner of wrong polarity, dust is increased, machine is polluted, make the substrate of duplicate smudgy.Moreover the residual toner that washes down from visual top layer returns the developing groove, and other foul such as paper scrap, earth and paper fiber all enter the developing groove, make system's dirt even cisco unity malfunction.

Principal feature of the present invention is partly to circulate in imaging to finish in two weeks in the Xerox that once duplicates, and uses the box developing cleaning part of a standard form.Box developing cleaning part partly is made up of with cleaning partly developing.Developing developing device partly contacts with the imaging surface of cycle rotation continuously and carries out developing.Cleaning partly has one to clean rubbing board in order to cleaning imaging surface, and cleaning rubbing board has alternately two positions, and the device of control rubbing board and imaging surface engaged or disengaging is arranged.Clean part and also have a toner gatherer, clean the toner of using from the imaging surface in order to collect by rubbing board.Case structure makes to clean with developing partly to be separated mutually.The toner that cleans from developing imaging surface partly can separate collection and no longer return the developing district.

Another characteristics of the present invention, the developing cleaning part that is used for the duplicating machine standard type, have the device of source book information copying in sensitization basic unit, include: the imaging surface of moving in circulation forms electrostatic latent image, with toner particles electrostatic latent image is shown, look resembled be transferred in the sensitization basic unit, clean the toner of imaging remained on surface and before duplicating next time in and device such as electrostatic latent image.

Another characteristics of the present invention, across the cleaning rubbing board pivotal mounting of imaging face width, and with solenoid and linkage assembly, control cleaning rubbing board alternately is in the position with imaging surface engaged or disengaging.

Another characteristics of the present invention, the magnetic brush that developing is partly installed is equipped with a rotating tubular element at least, separates in tubular element inside and with pipe fitting, and a magnetic element is installed regularly.

Another characteristics of the present invention, duplicating machine include toner and collect and dosage bunker, with the spiral pusher toner are filled dosage bunker from toner activity.A carrier drip catcher is collected the part carrier in magnetic brush warp let-off developing district, and batch mixes spiral organ the part carrier that will collect and a toner that newly replenishes are mixed into photographic developer, deliver to the photographic developer hopper.

Another characteristics of the present invention, the top at the toner collecting box of the box developing cleaning part of standard form has an overflow vent to be connected with the top of photographic developer hopper.The quantity that toner collecting box toner when the capacity of overflow vent equals developing carrier partly and reaches the highest serviceable life is collected.

Target of the present invention is the developing cleaning assembly that a standard type is provided for Xerox, can be the circulation time second time of twice circulation image formation method, removes residual toner from the imaging surface.Collect with residual toner of removing and photographic developer hopper and isolate mutually.

Another target of the present invention is to provide compact conformation economical associating developing and cleaning assembly for Xerox.

Another target of the present invention, associating developing that it provides and cleaning assembly can reduce the pollution to machine of toner and impurity.

Fig. 1 is the diagrammatic cross-section of automatic Xerox.Expression has the box developing cleaning part of standard form of the present invention among the figure.

Fig. 2 is the frontal view of the central part section of developing cleaning part amplification.

Fig. 3 is back to view for what amplify, has represented the control gear of rubbing board.

Fig. 4 a and 4b represent solenoid effect and non-time spent, rubbing board engagement and the position that breaks away from done.

Fig. 5 is the cut-open view of Fig. 2 along the A-A line, the assembly structure of expression toner material bottle and spiral pusher.

According to Xerox, preferred embodiment and use thereof that box developing of standard form and cleaning part are housed describe now.

Accompanying drawing has been represented each parts of duplicating machine, comprises relevant every characteristics of the present invention.In all drawings and explanation, use same numeric character to represent same element.Can be expressly understood that from following explanation the characteristics of preferred embodiment are not limited to use the device of this explanation, be applicable to the various types of Xeroxs of vast scope too.

As shown in Figure 1, Xerox uses and to deposit the sensitization matrix, forms the endless belt 10 of photosensitive surface.The most handy organic photoconductor of photosensitive surface and the sensitization matrix composition of making of aluminium alloy.Endless belt 10 is pressed arrow 12 sensings and is moved, and makes photosensitive surface continuously in the distance of its shift-in, arranges through each treating stations.Roll shaft 14,16 and 18 makes endless belt keep suitable tension force.Roll shaft 14 is connected with driving motor 20, and roll shaft 16,18 is contained on the bearing, can freely rotate and as guide wheel, motor 20 drive roller shaft 14 make endless belt 10 send to by the sensing of arrow 12.

Source document 22 faces down and is placed on the transparent plate 24, and dull and stereotyped 24 are installed on the framework 26 that can move back and forth in the horizontal direction, as shown in arrow 27.The linear velocity that the translational velocity of endless belt 10 equals dull and stereotyped 24.Endless belt 10 follows the loop journey and moves.In order to duplicate a source document, endless belt 10 needs circulation to move for two weeks.

At first all circulation times, endless belt 10 begins a part of warp let-off charging/ transmission part 28,28 of photosensitive surface is comprised an electric discharge device 30, makes the photosensitive surface charging of endless belt 10 and has height and uniform potential.Electric discharge device 30 has a U-shaped guard shield 32, and the openend of guard shield is aimed at the photosensitive surface of endless belt 10.The spray point 34 of two row's equi-spaced apart outwards stretches to opening part from guard shield, and is relative with the photosensitive surface of endless belt 10.

Endless belt 10 is delivered to exposure/discharge associating parts (representing with character 36) with the photosensitive surface 12 of charging then.Exposure/discharge associating parts comprise a light source 38, and light source 38 can be selected the slender type tungsten lamp for use, and fixed in position is under dull and stereotyped 24.An opaque guard shield 40 has a narrow slit around light source 38 on the guard shield 40, see through the source light directive and face down and be placed on source document 22 on dull and stereotyped 24.Dull and stereotyped 24 press the sensing of arrow 27 when mobile, and the part that source document increases in succession is illuminated.Resembling transmission fiber (representing with character 42) from the light of source document 22 reflection through a branch of light transmits.Light resembles transmission fiber 42 and is the light transmitting fiber of a branch of variations in refractive index.Be published in a kind of light transmitting fiber of 3,638, No. 407 declarations of United States Patent (USP) of Kitano with glass or artificial resin making in 1972, the distribution of its optical index is pressed parabolic curve continuously and is changed outside mediad along the cross section.Each fiber plays focus lamp, transmits with the end or near the some of the light elephant of end.One group of staggered duplicate rows array of light transmitting fiber is arranged, and can transmit and focus on whole images of object.Produce fibre-optic trade name for " SELFOC ", this trade mark Japanese sheet glass company limited all.The light transmitting fiber array of this variations in refractive index is used for Xerox to replace optical transmission system.As No. 3,947,106, the United States Patent (USP) locating to announce at Hamaguchi etc. in 1976, No. 3,977,777, the United States Patent (USP) of announcing at Tanaka in 1976.The relevant part of above-mentioned patent is comprehensively quoted in this patent.From the light of source document reflection, resemble the charging part that the transmission transmitting fiber tow is delivered to the photosensitive surface of endless belt 10 through light, and lose electric charge selectively, this just according to the data information zone of source document 22, has recorded electrostatic latent image at the photosensitive surface of endless belt 10.Exposure/discharge associating parts 36 also have the glass fibre photoconductive tube 44 of a transmission light.One end of photoconductive tube 44, contiguous light source 38, the other end of photoconductive tube 44 are positioned to be pressed on the mobile endless belt 10 of arrow 12 sensings, does not enter charging/transmission associating parts 28 photosensitive surface place before as yet.

Below, replenishing with reference to figure 2, the latent image that endless belt 10 is recorded photosensitive surface is delivered to associating developing cleaning part (representing with character 46).Associating developing cleaning part 46 comprises that a developing partly 47 and one cleans part 50.Developing partly 47 has a pair of developing roller 54 and 55, respectively by tubular holders 58 and 59 and the magnetic element 56 and 57 that is installed in sleeve inner respectively form.Tubular holders is done the counter-clockwise direction revolution by shown in the arrow.Photographic developer is carried with the rotating horizontal impeller mixer 51 of counter-clockwise direction from material-storing box 52.Many hoppers are arranged on the impeller mixer,, upwards flow to developing roller 54 and 55 being stained with the carrier granular of the toner particulate of frictional electrification.When tubular holders 58 counter-clockwise direction are turned round, the photographic developer material that first developing roller 54 is drawn, quilt is sent to latent image to be contacted, and the toner particulate is drawn by latent image from carrier granular.Form toner powder China ink image like this on the photosensitive surface of endless belt 10, tubular holders 58 and 59 is connected to voltage source, makes sleeve have 50 volts to 500 volts bias voltage.Voltage swing will be selected according to the voltage level of latent image and background area.Bias voltage is got the intermediate value of background and latent image voltage during developing, and tubular holders 58 and 59 the most handy nonmagnetic substances (as aluminium) are made, and its outer circumference surface requires coarse.Magnetic element 56 and the plain barium of 57 the most handy iron are made, and many magnetic poles are arranged thereon.Quantitatively plate 64 is used for regulating and sends to the developing dosage that contacts with the electrostatic latent image recorded on endless belt 10 photosensitive surfaces.After the developing, the photographic developer that loses toner is sent to the outlet of sleeve 59, will describe in detail after the photographic developer material-storing box 52(because action of gravity falls back).The some of carrier granular is collected by toner blending bin 65.Xerox with the cleaning rubbing board 60 that is pivotally mounted on the rubbing board seat 61, does not contact (will describe in detail later on) with the imaging surface, thereby does not provide the function that contacts or clean to the sensitization endless belt in the whole developing operating process of first week circulation.

After the photosensitive surface of endless belt 10 formed, endless belt 10 returns to toner powder China ink image united charging/transmission part 28, beginning second week circulation at toner powder China ink image.Paper feeder 68 was delivered to transfer sheet 66 and was united charging/transmission part 28 places this moment, transfer sheet is fed by the regular hour order, make the toner image that forms on itself and endless belt 10 photosensitive surfaces synchronously, the one side of transfer sheet contacts with toner is visual uniting charging/transmission part place.Paper feeder 68 is one can rotating cylinder, there are many intervals to arrange outwardly directed soft fin on it, the free end of each fin in succession with paper buttress 70 go up 66 engagements of page or leaf paper most, when feeder 68 revolutions, paper 66 is transferred on the feed well 72, and centering roller 74 is sent into paper 66 synchronously with the toner image of endless belt 10 photosensitive surfaces and united charging/transmission part 28.

Unite electric discharge device 30 on charging/transmission part 28 to the back side of transfer sheet ejected ion, this just makes the toner image be sucked away from the photosensitive surface of endless belt 10, and is sent on the transfer sheet.After the picture transmission, transfer sheet and endless belt 10 move together, and when endless belt 10 pile warp roll shafts 18, beam intensity there is peeled off paper from endless belt.Paper leaves after the endless belt 10, enters fusing device 76.Fusing device 76 is made up of roll shaft 78,80 and 82, and when paper passed between roll shaft 80 and 82, the there applied pressure was securely fixed on the transfer sheet toner image for a long time.After this outlet roller 84 is delivered to catch tray 88 by the arrow direction with paper, by the operator copy paper is taken away from duplicating machine again.

After the picture transmission, at duplicating program second all circulation times, the sensitization band will stick to the residual toner particulate of photosensitive surface and deliver to cleaning case.Clean rubbing board 60 and be positioned at the state of sweeping of drawing together that touches engagement with photosensitive belt, draw together except that toner particulate residual on the sensitization band, after this toner particulate is because action of gravity falls into toner collecting box 67.Clean rubbing board and can clean any suitable material making commonly used of rubbing board system with common static.Also can make of any suitable synthetic elastic material.The rubbing board that typically can use polyurethane to make.Owing to remain in the toner waste material (including toner and dirty bits) on the sensitization band, after the rubbing board cleaning, directly fall into the toner collecting box.According to original technology, residual toner is collected separately, no longer sends the photographic developer hopper back to.So the photographic developer in the hopper can use continuously, they can not cleared away the toner of the incorrect polarity of getting off by rubbing board from sensitization band 10 and other dirty bits pollute.

After the residual toner particulate cleaning of endless belt 10 photosensitive surfaces, endless belt 10 is being with residual charge through uniting exposure/discharge component 36.Light valve is opened at that time, and light is transferred on the photosensitive surface through photoconductive tube 44 from light source 38, makes photosensitive surface before next week circulation begins charging, removes electrostatic charge residual on it.When first all circulation times, light valve is closed, and stops the light of light source 38, can not pass through from photoconductive tube 44.

Continuation will be elaborated to developing/cleaning associating parts with reference to figure 2 and additional with reference to figure 3,4a, 4b, 5 and 6.

Clean rubbing board 60 and be contained on the rubbing board seat 61,61 are contained on the pivot 62.The other end of rubbing board seat 61 has groove 71, is meshed with the bearing pin 69 that is contained in connecting rod 75 ends.Connecting rod 75 is contained on the pivot 73.The other end of connecting rod 75 has groove 79, with bearing pin 77 engagements on the piston 89 of solenoid mechanism 85.Do the time spent when the solenoid energising, piston 89 is inhaled in the coil case, and forces rubbing board 60 to contact with sensitization band 10, and enters the cleaning position, shown in Fig. 4 a.When solenoid failed, piston 89 was not attracted by coil and can move freely.Effect lower piston at spring 87 is overhanging, and connecting rod 75 is risen, and rubbing board 60 is drawn back and the contacting of disengaging and sensitization band 10.Can see clearly from Fig. 4 a, when solenoid is done the time spent, rubbing board and sensitization band 10 form about 25 ° contact angle with the pressure engagement.

Continuation is referring to Fig. 2, and the cleaning of developing cleaning case 46 part 50 has a toner collecting box 67, and its top has overflow vent 81 to communicate with the top of photographic developer hopper 52.The capacity of toner collecting box 67, require design like this, can collect the remaining toner amount of holding to the top overflow vent, approximate developing partly the carrier in 47 the photographic developer arrive also appearance inefficacy in its highest serviceable life, so-called photographic developer lost efficacy, and promptly the triboelectric relationship of carrier and toner is destroyed.Carrier is coated by toner, can not make toner produce suitable electric charge, duplicates the poor quality thereby make.When the toner in the collecting box 67 is filled overflow vent 81, toner overflows in the developing part 47 of falling developing/cleaning case, toner will mix with the photographic developer in the photographic developer case at that time, because these toner incorrect polarity thereby the developing process is polluted and can not be worked, the operator can see the duplicate blurred background, duplicates the poor quality.When the operator sees that reproduction quality is bad, just note to change the photographic developer that developing is partly adorned in 47 casees, and the useless toner of collecting in the toner collecting box is outwelled.

Continuation is with reference to figure 2, and whole developing cleaning case 47 is contained on the axle 90 from the front slippage.On the axle 90 groove 91 is arranged, cooperatively interact with the similar part 92 on the developing cleaning case, when the developing cleaning case is passed the terminal stroke on axle 90, the developing cleaning case is upwards risen enter the working position, this is because groove 91 is mated partly 92 effect, very is similar to a cam, therefore when unloading the developing cleaning case, beginning can fall to leaving the sensitization band automatically, the sensitization band is unlikely by the developing axle abrades.

Continuation illustrates another characteristics of developing cleaning case and the device of supply toner with reference to figure 2 and Fig. 5.In above-mentioned developing process, the photographic developer material package is drawn together carrier granular and toner particles, leaves with in photographic developer hopper 52.Laterally impeller mixer 51 makes carrier mix in case with toner, also mixes with the following new toner that replenishes that will illustrate.Between carrier and toner, generate correct triboelectric charge relation in the mixed process, when the mixer counter-clockwise direction is turned round, the carrier toner photographic developer that mixes is offered first magnetic brush developing roller 54.Revolution sleeve 58 is sent photographic developer into developing district, top, and crosses on the sleeve 59 of second developing roller through the developing district.When photographic developer broke away from sleeve 59, major part fell back in the hopper 52, falls into toner blending bin 65 through breach 95 on a small quantity, and carrier mixes with the toner of new supply in blending bin, and photographic developer hopper 52 is sent in output back to from blending bin then.The helical screw feeder 96 that traverses developing case 47 overall withs is arranged at toner blending bin bottom, and the one end communicates with the material stock district 99 of toner quantitative feed device 97, so just toner is supplied to photographic developer hopper 52 from toner material bottle 98.

Continuation is with reference to figure 5 and Fig. 2, and the toner in the toner material bottle 98 because gravity falls into toner quantitative feed device 97, is pushed to material stock district 99, is transported to toner blending bin 65 by the helical screw feeder 96 of bottom again.In the toner blending bin, the toner of new supply contacts with the carrier that enters from breach 95, is pre-mixed and gives electrically charged.When the toner blending bin is filled, partly be pre-mixed and charged photographic developer, be transported to photographic developer hopper 52 by helical screw feeder 96, charged with existing mixing there photographic developer row mixing again.The helical screw feeder of toner mixer and bottom thereof (having the carrier that loses toner that some are collected from the developing district in helical screw feeder) constitutes and carries the device of toner to photographic developer hopper 52.Carry the carrier and the toner that mix, more much easier than only carrying the toner that newly increases.

Reach according to the above description accompanying drawing, can be expressly understood, the invention provides for the box developing cleaning part of the standard type of Xerox, its type is: whenever copy an imageable element and need finish two circulating cycles; The residual toner that cleans from the imaging surface does not return the photographic developer hopper, when collecting useless toner, also be eliminated such as fouls such as dust paper scraps, reduced the pollution of photographic developer hopper, the powder China ink cloud and mist that changes little to be formed by wrong polarity toner, also just reduced the pollution to machine, made the duplicate bottom surface clear; Moreover at the top of toner collecting box overfall is arranged, and designed toner collecting box is collected the suitable capacity of toner, is equivalent to the moment that developing carrier partly arrives its service life, and the operator is awared automatically needs to change developing photographic developer partly; Moreover the toner of introducing mixing is pre-mixed pre-charge easily device is provided partly for supplying new toner.

The content that this patent relates to is illustrated at this seriatim and relatively with reference to actual device.

The present invention describes with reference to special arrangement. For the people who is familiar with this technology, very easy understanding can be made multiple substituting or the change pattern on this basis, and for example the cleaning rubbing board mechanism of solenoid controlled can replace with other cam mechanism. Moreover the sensitive tape that uses of the present invention, be equipped with suitable developing cleaning case and also can obtain same good effect if use the sensitization rotating cylinder instead. Moreover magnetic brush visualization part of the present invention also can use other developing device. Moreover introduction of the present invention is for duplicator, and very easy understanding equally also can be applicable to printing machine. The scope of patent should be replenished the pattern that comprises that all these substitute or change for this reason.

Claims (14)

1, the input original file information is copying the Xerox that duplicates on the photographic layer, be included in the surperficial device that forms electrostatic latent image of imaging that circulation is moved, the device that shows electrostatic latent image with toner particles, transmission toner image is to the device of copy photographic layer, clean the device of imaging remained on surface toner and before duplicating next time in the device of electrostatic latent image.

Developing and cleaning device comprise a standard box assembly, have concurrently with the imaging surface to carry out developing and clean two positions of engagement.Standard package comprises the developing device that meshes developing with the imaging surface continuously, the rubbing board on cleaning imaging surface, the device that makes rubbing board and imaging surface alternately mesh cleaning or throw off, developing cleaning assembly also comprises a toner collecting box, collection is cleaned the toner of using by rubbing board from the imaging surface, the inlet port of collection toner partly separates with the developing of assembly, and the developing on imaging surface is to carry out in the different time with cleaning, therefore, collecting the toner and the supply developing toner that clean separates.

2, according to the machine of patent requirement 1, clean the rubbing board pivotal mounting,, control the rubbing board of using pivotal mounting, be in and the surperficial position that contacts cleaning or break away from of imaging with solenoid and linkage assembly across the overall with on imaging surface.

3, require 1 machine according to patent, whenever duplicate imaging surface two weeks of circulation, at first all circulation times, the developing cleaning assembly shows latent image and cleans that rubbing board is positioned at and discontiguous position, imaging surface, second all circulation times, the developing cleaning assembly cleans the imaging surface, and the cleaning rubbing board is in the position with the imaging surface engaged.

4, patent requires 1 machine, has the device that forms electrostatic latent image on the imaging surface, comprises the device that makes imaging surface uniform charging and exposed to the need replicated image in the imaging surface.

5, patent requires 4 device, comprises a transparent plate, and source document is wanted copied image, is placed on this flat board.

6, patent requires 1 machine, and circulation imaging surface is one to scribble the endless of photosensitive material layer.

7, patent requires 1 machine, and developing device has a magnetic brush, comprises having a rotating tubular element at least, separates in tubular element inside and with pipe fitting, and a magnetic element is housed regularly.

8, patent requires 7 device, its developing device comprises a toner collecting box and a dosage bunker, dosage bunker comprises helical screw feeder, it gets the toner of supply from toner feed dress, one carrier drip catcher receives from the developing magnetic brush and transports next a part of carrier, a batch mixes helical screw feeder, the carrier of collection and the toner of resupplies are mixed, and a photographic developer that mixes is transported to the photographic developer hopper.

9, patent requires 1 machine, and an overflow vent is arranged at the top of its toner collecting box, communicates with the top of photographic developer hopper, and the toner capacity that collecting box can be collected to overflow vent approximates the carrier in the developing device photographic developer, has arrived its highest useful life period.

10, the box developing of standard form and the cleaning part that are used for Xerox whenever duplicate an imageable element and finish the pattern in two weeks of circulation.The box parts of standard form have the developing part and clean partly, developing partly includes continuously and the developing device of imaging surface engaged developing, clean rubbing board that partly comprises cleaning imaging surface and the device that makes rubbing board and imaging surface hocket the cleaning engagement or throw off, clean and to comprise that partly a collection cleaned the collecting box of using toner by rubbing board from the imaging surface, and and visualization part separate, from developing partly the toner collected separately of the imaging surface echo of not bothering to see me out resemble partly.

11, according to the machine of patent requirement 10, comprise the electromagnetic spool device that is connected to connecting rod, make the rubbing board of pivotal mounting alternately be in the position that cleaning is meshed or broken away from the imaging surface.

12, require 10 machine according to patent, its developing partly has a magnetic brush, comprises having a rotating tubular element at least, and tubular element is inner and separate with pipe fitting, and a magnetic element is housed regularly.

13, require 12 device according to patent, its developing partly comprises a toner collecting box and a dosage bunker, dosage bunker has a helical screw feeder, in order to get the toner of supply from toner feed dress, one carrier drip catcher is arranged, carried a part of carrier of coming by magnetic brush in order to collect through the developing district, and a batching helical screw feeder, carrier and the new toner of supplying with collecting are mixed into photographic developer and are sent to the developing district.

14, require 11 device according to patent, overflow vent is arranged at the top of its toner collecting box, communicate with the top of photographic developer hopper, the capacity of the toner that collecting box can be collected to overflow vent, approximate developing partly the carrier in the photographic developer arrived its maximum life span operating period.

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