CN101419424A - Liquid developer collecting system and image forming apparatus including the same - Google Patents
Liquid developer collecting system and image forming apparatus including the same Download PDFInfo
- Publication number
- CN101419424A CN101419424A CNA2008101667924A CN200810166792A CN101419424A CN 101419424 A CN101419424 A CN 101419424A CN A2008101667924 A CNA2008101667924 A CN A2008101667924A CN 200810166792 A CN200810166792 A CN 200810166792A CN 101419424 A CN101419424 A CN 101419424A
- Authority
- CN
- China
- Prior art keywords
- developer
- liquid developer
- liquid
- concentration
- concentration adjustment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Wet Developing In Electrophotography (AREA)
Abstract
The present invention provides a liquid developer recycling system and an image forming device with the recycling system. The liquid developer recycling system has a simple structure and can efficiently execute concentration adjustment according to the concentration of the recycled liquid developer. The liquid developer recycling system is characterized by comprising the following components: a developing roller cleaning part which recycles the liquid developer of developing roller; a developer storing part which stores the liquid developer recycled by the developing roller cleaning part; and a concentration adjusting part which stores the liquid developer conveyed from the developer storing part and adjusts the concentration of the liquid developer.
Description
Technical field
The present invention relates to a kind of liquid developer collecting and possess the image processing system of this system.This liquid developer collecting carries out concentration adjustment to the liquid developer that reclaims and then utilizes from developing apparatus, this image processing system comprises: a plurality of photoreceptors; Use with the liquid developer of non-volatility solvent a plurality of developing apparatuss that the electrostatic latent image that forms is respectively developed on described a plurality of photoreceptors as carrier; Toner image after utilizing the transfer printing portion corresponding with described a plurality of photoreceptors difference with described development is transfer printing and superimposed transfer article successively.
Background technology
Motion has various wet type image processing systems at present, and it uses the full-bodied liquid developer that is dispersed with the toner of being made up of figure attitude component in liquid flux, and sub-image is developed so that electrostatic latent image is visual.The liquid developer that uses in this wet type image processing system is that figure attitude component (toner particle) is suspended in the organic solvent (carrier) of the electrical insulating property that is made of silicone oil or mineral oil, edible wet goods and the developer of making, and the particle of this toner particle is extremely trickle, and the particle footpath only is about 1 μ m.By using this trickle toner particle, be the dry type image processing system comparison of the coccoid toner particle of 7 μ m sizes with using particle diameter, the wet type image processing system can obtain high quality images.
In the image processing system that uses this liquid developer, the technology that will utilize again from the liquid developer of developing apparatus or photoreceptor recovery is by motion.In the existing image processing system that liquid developer is reclaimed, utilize again, be to be coated on developer roll on the thin layer of 1～50 μ m liquid developer and to be transported to development folder.Scrape by scraper plate and get and accumulate in recoverer by remaining in liquid developer on the developer roll after the development folder portion, but the figure attitude particle of the liquid developer that reclaims is mobile and diluted on photoreceptor.In addition, the liquid developer that reclaims from photoreceptor is carrier component mostly, so its solids fraction concentration is lower than the concentration of the solids fraction of the liquid developer that reclaims from developing apparatus.
This diluted liquid developer uses pump etc. and is transported to concentration adjusting device.At this, supply with the liquid toner of high concentration and mix, thereby be adjusted to desired value figure attitude concentration of component with diluted liquid developer.The liquid developer that is adjusted to desired value solids fraction concentration is moved to developing apparatus once more and utilizes.
Patent documentation: 2002-No. 6637 communiques of TOHKEMY
Yet the ratio of the solid particles of the liquid developer of recovery is unfixing.With regard to typicalness, promptly the consumption of solid particles changes based on view data.For example, the liquid developer that uses the developer roll of developer roll cleaning balde after develop to reclaim is panchromatic timing in view data, and most solid particles move on the photoreceptor and are consumed, therefore, and the solids fraction concentration step-down of the liquid developer of recovery.In addition, when view data was shadow tone, the solid particles that moves on the photoreceptor was few, so the solids fraction concentration of the liquid developer that reclaims changes hardly.When the withdrawal liquid developer with such solids fraction concentration change utilized again, the setting following occasion of solids fraction concentration for allowing must the working concentration regulating device be adjusted to aimed concn with it.In the occasion of coloured image formation device, in order to prevent colour mixture, the concentration adjusting device of withdrawal liquid developer is set to one of every look.Image processing system there is the miniaturization requirement, therefore, has to make low capacity by the capacity of the concentration adjusting device of a setting of every look.
In the concentration adjusting device of low capacity,, thus, supply with the new toner of high concentration to concentration adjusting device from the toner jar for the withdrawal liquid developer that concentration is low is adjusted to the concentration of regulation.The concentration of new toner is about 35%, normal concentration was made as 20% o'clock, then the concentration at the liquid developer that reclaims is 17% o'clock, in order to utilize concentration adjusting device that it is adjusted to normal concentration, thus, must supply with the new toner of 35% concentration of ormal weight, therefore, produce following problem, if promptly the vacant capacity of this component not in the concentration adjusting device just can't be carried out concentration adjustment efficiently.
Summary of the invention
In order to solve described problem, the objective of the invention is to, a kind of liquid developer collecting is provided and possesses the image processing system of this recovery system, it is simple in structure, and can implement concentration adjustment efficiently effectively according to the concentration of the liquid developer that reclaims.
In order to solve described problem, liquid developer collecting of the present invention has: the developer roll cleaning section, and its liquid developer to developer roll reclaims; The developer solution reservoir, it stores the liquid developer that is reclaimed by described developer roll cleaning section; Concentration adjustment portion, it stores from described developer solution reservoir and is handled upside down next liquid developer, and the concentration of liquid developer is regulated.By the withdrawal liquid developer is stored temporarily in the developer solution reservoir, be transported to concentration adjustment portion thereafter again, thus, and can be corresponding with the change of the solids fraction concentration of withdrawal liquid developer, carry out the concentration adjustment of withdrawal liquid developer efficiently.
In addition, liquid developer collecting of the present invention has: waste liquid tank; The dispenser that the liquid developer of described developer solution reservoir is distributed to described concentration adjustment portion and described waste liquid tank.Thereby, can be corresponding with the change of the solids fraction concentration of withdrawal liquid developer, carry out the concentration adjustment of withdrawal liquid developer efficiently.
In addition, liquid developer collecting of the present invention has: reclaim liquid concentration reckoning portion, it extrapolates the concentration of the liquid developer that is reclaimed by the developer roll cleaning section according to by counting that view data obtains; Control part, it is according to the data that obtained by described recovery liquid concentration reckoning portion, and described dispenser is controlled.Thereby, can extrapolate image and form the toner quantity that consumes in the operation, and extrapolate the solids fraction concentration of the liquid developer that reclaims from developer roll, therefore, can be used for the distribution of the concentration adjustment of withdrawal liquid developer in real time.
In addition, liquid developer collecting of the present invention has: development section, and it has described developer roll; Liquid level sensor, it is disposed at described concentration adjustment portion; Concentration sensor, it is disposed at described concentration adjustment portion; Trucking department, its from described concentration adjustment portion at development section to described development section carrying liquid developer.Thereby, the withdrawal liquid developer can be carried out concentration adjustment and utilization again.
In addition, liquid developer collecting of the present invention has: toner jar, its storaging liquid developer; Carrier tank, its storaging liquid carrier; The liquid developer supply unit, it supplies to described concentration adjustment portion with liquid developer from described toner jar; The liquid-carrier supply unit, it supplies to described concentration adjustment portion with liquid-carrier from described carrier tank.Thereby, can be corresponding with the change of the solids fraction concentration of withdrawal liquid developer, carry out concentration adjustment efficiently.
In addition, liquid developer collecting of the present invention has trucking department mechanism, and this trucking department mechanism will be transported to described concentration adjustment portion by the liquid developer that compression roller reclaims from photoreceptor.Thereby, can not have the more liquid developer of carrier component that utilizes again lavishly on the photoreceptor.
In addition, liquid developer collecting of the present invention possesses: partition wall, and it is disposed at described development section; Reservoir, it supplies to liquid developer the described developer roll that is separated by described partition wall; Recoverer, its inflow have the liquid developer that is reclaimed by described developer roll cleaning section, and make and cross the liquid developer that described partition wall overflows from described reservoir and flow into recoverer.Thus, the quantity delivered of the liquid developer of supplying with to reservoir is set at more more than the liquid developer consumption of following development, therefore, by reclaiming effectively and utilize the liquid developer of overflow again, thereby can not form waste.
In addition, image processing system of the present invention is characterised in that to have: photoreceptor, and it is formed with electrostatic latent image; Development section, it develops by liquid developer and described electrostatic latent image is formed image; Transfer printing portion, the described photoreceptor image of its transfer printing; The developer roll cleaning section, it reclaims the developer of developer roll; The developer solution reservoir, it stores the liquid developer that is reclaimed by described developer roll cleaning section; Concentration adjustment portion, it stores from described developer solution reservoir and is handled upside down next liquid developer, and the concentration of liquid developer is regulated.Thereby, can realize utilizing again efficiently the image processing system of withdrawal liquid developer.
In addition, image processing system of the present invention has: waste liquid tank; Dispenser mechanism, its liquid developer with described developer solution reservoir distributes to described concentration adjustment portion and described waste liquid tank.Thereby, can be corresponding with the change of the solids fraction concentration of withdrawal liquid developer, carry out the concentration adjustment of withdrawal liquid developer efficiently
Image processing system of the present invention has: reclaim liquid concentration reckoning portion, it extrapolates the concentration of withdrawal liquid developer according to by counting that view data obtains; Control part, it is according to the data that obtained by described recovery liquid concentration reckoning portion, and described dispenser is controlled.Thereby, can extrapolate image and form the toning dosage that consumes in the operation, and extrapolate the solids fraction concentration of the liquid developer that reclaims from developer roll, therefore, can be used for the distribution of the concentration adjustment of withdrawal liquid developer in real time.
In addition, image processing system of the present invention has: liquid level sensor, and it is disposed at described concentration adjustment portion; Concentration sensor, it is disposed at described concentration adjustment portion; Trucking department, it is transported to described development section with liquid developer from described concentration adjustment portion.Thereby, can regulate concentration and utilization again to the withdrawal liquid developer.
Image processing system of the present invention has: toner jar, its storaging liquid developer; Carrier tank, its storaging liquid carrier; The liquid developer supply unit, it supplies to described concentration adjustment portion with liquid developer from described toner jar; The liquid-carrier supply unit, it supplies to described concentration adjustment portion with liquid-carrier from described carrier tank.Thereby, can be corresponding with the change of the concentration of withdrawal liquid developer, carry out concentration adjustment efficiently.
In addition, image processing system of the present invention has: compression roller, and it is disposed at photoreceptor; Trucking department will be transported to described concentration adjustment portion by the liquid developer that described compression roller reclaims.Thereby, can not utilize the more liquid developer of carrier component on the photoreceptor lavishly again.
Image processing system of the present invention has: partition wall is disposed at described development section; Reservoir, it supplies to liquid developer the described developer roll that is separated by described partition wall; Recoverer, its inflow have the liquid developer that reclaims from described developer roll cleaning section, and make and cross the liquid developer that described partition wall overflows from described reservoir and flow into recoverer.Thus, the quantity delivered of the liquid developer of supplying with to reservoir is set at more more than the liquid developer consumption of following development, therefore, by reclaiming effectively and utilize the liquid developer of overflow again, thereby can not form waste.
Description of drawings
Fig. 1 is the figure of expression embodiments of the present invention;
Fig. 2 is the figure of expression embodiments of the present invention;
Fig. 3 is the figure of expression embodiments of the present invention;
Fig. 4 is the figure of expression embodiments of the present invention;
Fig. 5 is the figure of expression embodiments of the present invention;
Fig. 6 is the figure of expression embodiments of the present invention;
Fig. 7 is the figure of expression embodiments of the present invention;
Fig. 8 is the figure of expression embodiments of the present invention;
Fig. 9 is the figure of expression embodiments of the present invention;
Figure 10 is the figure of expression embodiments of the present invention;
Figure 11 is the figure of expression embodiments of the present invention.
The drawing reference numeral explanation
10Y, M, C, K photoreceptor
11Y, M, C, K corona charging device
12Y, M, C, K exposing unit
13Y, M, C, K photoreceptor compression roller
14Y, M, C, K compression roller cleaning balde
15Y, M, C, K photoreceptor cleaning balde
20Y, M, C, K developer roll
21Y, M, C, K developer roll cleaning balde
22Y, M, C, the charged corona charging device of using of K toner
31Y, M, C, K developer reservoir
32Y, M, C, K developer supply roller
33Y, M, C, K limiting scraper
34Y, M, C, K partition wall
35Y, M, C, K reservoir
36Y, M, C, K recoverer
40 intermediate transfer belts
41 driven rollers
42 driven vollers
55 intermediate transfer body cleaning baldes
60 secondary transfer printing portions
61 secondary transfer roller
70Y, M, C, K surge tank
80Y, M, the shared carrier tank of C, K
81Y, M, C, K toner jar
82Y, M, C, K concentration adjustment jar
83Y, M, C, K liquid developer hold-up vessel
84Y, M, C, K distributor gear
90 waste liquid tanks
100 devices of counting
110Y, M, C, K liquid measuring device
120Y, M, C, K apparatus for measuring concentration
Embodiment
Based on accompanying drawing embodiment of the present invention is described.Fig. 1 is the figure of primary structure key element of the image processing system of the expression recovery system that constitutes the liquid developer possess first embodiment of the present invention.Fig. 2 is the partial enlarged drawing of the recovery system of the primary structure key element of image forming part, developing cell and intermediate transfer body of expression first embodiment of the present invention and liquid developer.Among Fig. 1, with regard to forms by yellow (Y), pinkish red (M), cyanic colours (C), black (K) of all kinds with regard to, for same textural element, adopt to give respectively and represent Y, M of all kinds, the same numbering of C, K.Wherein, Fig. 2 shows the structure of image forming part, developing cell and intermediate transfer body of yellow (Y) and the recovery system of liquid developer.
As shown in Figure 1, the image processing system 1 of this embodiment possesses: the sub-image supporting body of the yellow of arranged in series (Y), pinkish red (M), cyanic colours (C) and black (K) is photoreceptor 2Y, 2M, 2C, 2K.Herein, among each photoreceptor 10Y, 10M, 10C, the 10K, 10Y represents yellow photoreceptor, and 10M represents pinkish red photoreceptor, and 10C represents the cyanic colours photoreceptor, and 10K represents the black photosensitive body.In embodiment shown in Figure 1, all constitute by photosensitive drums.In addition, each photoreceptor 10Y, 10M, 10C, 10K also can constitute ring-band shape.
Image forming part as shown in Figure 2, its sense of rotation along the periphery of photoreceptor 10Y (moving direction) disposes corona charging device 11Y, exposing unit 12Y, developer roll 20Y, photoreceptor compression roller 13Y and photoreceptor cleaning balde 15Y.Photoreceptor compression roller 13Y and photoreceptor 10Y is opposed and butt is configured between developer roll 20Y and the 50Y of primary transfer portion.Possesses the extruding cleaning balde 14Y that presses on its surface and on this surface, slide on the photoreceptor compression roller 13Y.
On the periphery of developer roll 20Y, developer roll extruding cleaning balde 21Y is connected to the downstream of development folder, and the developer supply roller 32Y of use anilox roll (anilox roller) is connected to the upstream side of the development folder of developer roll 20Y.Restriction developer replenishing quantitative limitation scraper plate 33Y is connected to developer supply roller 32Y.Between development folder and liquid developer donor rollers 32Y, dispose the corona charging device 22Y of the charged usefulness of toner.Developer supply roller 32Y is configured among developer collecting container (toner reservoir) 31Y that has accommodated liquid developer.Clamping intermediate transfer body 40 and with the opposed position of photoreceptor 10Y, dispose the primary transfer roller (not shown) of the 50Y of primary transfer portion.On intermediate transfer body 40, dispose intermediate transfer body cleaning balde 55.
In the liquid developer in being housed in developer reservoir 31Y,, can use the particle of colorants such as being dispersed with same well-known pigment in the well-known thermoplastic resin that in toner, uses, for example mean grain size 1 μ m as toner.On the other hand, as liquid-carrier,, can use for example Isoper (trade mark: insulativity liquid-carrier Exxon Corporation) in the occasion of the liquid developer that hangs down viscosity concentration.In addition, as liquid-carrier,, for example can use burning-points such as organic solvent, benzyl siloxane, dimethyl polysiloxane and dimethyl silicone polymer at the silicone oil more than 210 ℃, mineral oil in the occasion of the liquid developer of high viscosity concentration; Boiling point more than 170 ℃, viscosity is insulativity liquid-carriers such as the sturated aliphatic hydrocarbons such as more low viscous Liquid Paraffin of 3mPas, positive paraffin, vegetable oil, edible oil, high-grade aliphatic ester in the time of 40 ℃.And liquid developer 23Y, 23M, 23C, 23K are added on toner particle and spreading agent in the liquid-carrier together, and make toner solids fraction concentration be about 20% liquid developer.
In image forming part and developing cell, make photoreceptor 10Y charged equally by corona charging device 11Y, and by having the exposing unit 12Y of semiconductor laser, polygon mirror, F-optical systems such as θ lens, irradiate laser after the modulation based on the picture signal of input, thereby on charged photoreceptor 10Y, form electrostatic latent image.
Then, the developer level that the developer reservoir 31Y that utilizes limiting scraper 33Y restriction to store the liquid developer of (herein for yellow) of all kinds certainly supplies with, to developer roll 20Y feed fluid developer, make the latent electrostatic image developing that on photoreceptor 10Y, forms by developer supply roller 32Y.Utilize developer roll 20Y to make photoreceptor compression roller 13Y be connected to the photoreceptor 10Y of latent electrostatic image developing and describe superfluous carrier.Compression roller cleaning balde 14Y is connected to photoreceptor compression roller 13Y, reclaiming the liquid developer describe from photoreceptor 10Y, and is transported to liquid developer described later and utilizes mechanism again.13Y is as follows for the photoreceptor compression roller, promptly is the conductive elastic roller that disposes electric conductivity urethane rubber elastomeric material and fluororesin tabulation surface layer on the surface of metallic cored bar.
In the secondary transfer printing unit 60, secondary transfer roller 61 clamping intermediate transfer bodies 40 and band driven roller 41 arranged opposite.In secondary transfer printing unit 60, the timing of transfer position that arrives secondary transfer printing unit 60 with toner image that overlaps to form the full color on intermediate transfer body 40 by look or monochromatic toner image is synchronous, utilize sheet member such as sheet member carrying path L carrying/supply paper, thin slice, cloth, and additional secondary transfer printing bias voltage, thereby on sheet member the toner image of the toner image of secondary transfer printing monochrome or full color.The place ahead in sheet member carrying path disposes fixation unit (not shown), the toner image welding photographic fixing that makes the toner image of the monochrome that is needed on thin plate or full color is in recording mediums such as paper (sheet member), thereby the image that finishes on the sheet member of lastness forms.Intermediate transfer body 40 butts behind intermediate transfer body cleaning balde 55 and the secondary transfer printing, and liquid developer that will be residual recovery and be transported to waste liquid tank 90.
Its every kind color of liquid developer that is reclaimed by photoreceptor compression roller 13Y and photoreceptor cleaning balde 15Y all is reused, wherein, photoreceptor compression roller 13Y is disposed between the developing location and the 50Y of primary transfer portion of developer roll 20Y of photoreceptor 10Y, and photoreceptor cleaning balde 15Y is disposed at the downstream of the 50Y of primary transfer portion of photoreceptor 10Y.
With the yellow is that example describes the mechanism that the liquid developer that is used for reclaiming utilizes again.The developer reservoir 31Y of storaging liquid developer is separated wall 34Y and is divided into reservoir 35Y and recoverer 36Y.At the developer supply roller 32Y of reservoir 35Y configuration to developer roll 20Y feed fluid developer.In the periphery of developer roll 20Y, developer roll cleaning balde 21Y is connected to the downstream of the development folder of photoreceptor 10Y, and the developer roll 20Y after develop scrapes and fetch the receipts liquid developer, and carries to recoverer 36Y.
After development before the primary transfer, the liquid developer that duplicates from photoreceptor 10Y by photoreceptor compression roller 13Y is scraped by compression roller cleaning balde 14Y and to be got, and to the recoverer 36Y of developer reservoir 31Y carrying.
By with primary transfer after the liquid developer that reclaims of the photoreceptor cleaning balde 15Y of photoreceptor 10Y butt, temporarily to yellow with surge tank 70Y carrying, again from yellow with surge tank 70Y to yellow with concentration adjustment jar 82Y carrying, thereby utilize again.
First embodiment utilize mechanism again, under for example yellow situation of every kind of color, possess yellow with toner jar 81Y, yellow with concentration adjustment jar 82Y, yellow with developer solution hold-up vessel 83Y.And, in order to store new support, dispose the shared shared carrier tank 80 of shades of colour, and be communicated with concentration adjustment jar 82Y, 82M, 82C, the 82K of shared carrier tank 80 and shades of colour configuration by the carrying pipe respectively.
Withdrawal liquid developer in the recoverer 36Y of developer reservoir 31Y at first is transported to as the yellow of developer solution reservoir hold-up vessel 83Y.Temporarily be stored in the yellow interior liquid developer of hold-up vessel 83Y of using via pump, and be transported to as the yellow of concentration adjustment portion concentration adjustment jar 82Y.Its reason is, the withdrawal liquid developer that changes of the concentration of recoverer 36Y of autography portion temporarily is stored in yellowly with in the concentration adjustment jar 82Y by future, and the little yellow of the capacity of can implementing effectively is with the concentration adjustment in the concentration adjustment jar 82Y.
Dispose the concentration sensor of measuring concentration, the liquid level sensor and the stirring apparatus of measuring liquid level in concentration adjustment jar 82Y in yellow.Making concentration sensor, have reflect type or light-transmission type etc., as liquid level sensor, is vertically to dispose a plurality of bifurcation type Hall elements in the concentration adjustment jar, and on floatage body fixing element such as magnetic force generation body.Yellow is narrated afterwards with the concentration sensor in the concentration adjustment jar 82Y, liquid level sensor.
From yellow with the new support of about 35% concentration of toner jar 81Y be supplied to yellow by the carrying pipe with concentration adjustment jar 82Y from the new support of shared carrier tank 80.The yellow concentration adjustment jar 82Y that uses is communicated with via pump and by the reservoir 35Y that carries Guan Eryu developer hold-up vessel 31Y.
Fig. 3 is the figure of primary structure key element of the image processing system of the expression recovery system that constitutes the liquid developer possess second embodiment of the present invention, and Fig. 4 is the partial enlarged drawing of the recovery system of the primary structure key element of image forming part, developing cell and intermediate transfer body of expression second embodiment of the present invention and liquid developer.Among Fig. 3, with regard to constitute by yellow (Y), pinkish red (M), cyanic colours (C), black (K) of all kinds with regard to, for the same structure key element, give expression Y, M, C, K of all kinds respectively and adopt same numbering.Wherein, Fig. 4 shows the structure of image forming part, developing cell and intermediate transfer body of yellow (Y) and the recovery system of liquid developer.
The image processing system of recovery system that possesses the liquid developer of second embodiment of the present invention, with temporarily storing yellow from the withdrawal liquid developer of the recoverer 36Y of development section, utilize distributor gear 84Y to distribute with concentration adjustment jar 82Y and discarded jar 90 to yellow with the withdrawal liquid developer in the developer solution hold-up vessel 83Y.Order for distributor gear is narrated later on.Other structures are identical with the recovery system of the liquid developer of first embodiment, the Therefore, omited explanation.
Utilization is disposed at the concentration sensor of concentration adjustment jar 82Y and concentration and the liquid level that liquid level sensor is measured liquid developer.At first, the liquid measuring device 110Y as liquid level sensor is described.As shown in Figure 5, liquid measuring device 110Y has: float support unit 111Y, the first Hall element 113Y as a routine ratio output type Hall element, the second Hall element 114Y, the 3rd Hall element 115Y, as float 116Y, first magnetic field of a routine floating element take place body 117Y, and second magnetic field body 118Y takes place.
The ratio output type Hall element that the first Hall element 113Y, the second Hall element 114Y and the 3rd Hall element 115Y are changed by the relative density of line of magnetic force of output voltage is formed.In the present embodiment, the distance between the Hall element is made as 30mm.
Apparatus for measuring concentration 120Y has: agitating auger oar axle 121Y, as the transparent spiral oar 122Y of a routine moving-member, agitating auger oar 123Y, the 130Y of measurement of concetration portion as a routine mixing component.Agitating auger oar axle 121Y is with transparent spiral oar 122Y and the coaxial setting of agitating auger oar 123Y and by the parts of direct motor drive rotation.
The concentration detection method of realizing by 130Y of measurement of concetration portion and transparent spiral oar 122Y is described.As shown in Figure 6, transparent spiral oar 122Y is supported on agitating auger oar axle 121Y, constitute by flat-shaped parts such as rotatable rectangles, thereby constitute by phased manner by the first parts 130aY of the 130Y of measurement of concetration portion and the structure in the gap 130cY between the second parts 130bY.And the first parts 130aY and the second parts 130bY can move, and the distance of gap 130cY can be changed.In addition, can make the distance of gap 130cY different according to the color of liquid developer.
In the infiltration type measurement of concetration 130Y of portion shown in Fig. 7 (a) and (b), will be configured to clip the mode of gap 130cY with photo detector 132Y and opposed as the emitting led 131Y of routine measurement of concetration parts and measurement of concetration.In addition, in emitting led 131Y one side luminous intensity measurement photo detector 133Y is set.
As shown in Figure 8, emitting led 131Y, measurement of concetration are measured with photo detector 132Y and luminous intensity and are used photo detector 133Y, are connected with CPU134Y respectively.Emitting led 131Y is connected with CPU134Y via amplifier 135Y, and measurement of concetration is connected with CPU134Y via an A/D transducer 136Y with photo detector 132Y, and luminous intensity is measured with photo detector 133Y and is connected with CPU134Y via the 2nd A/D transducer 137Y.
In addition, in the reflection-type measurement of concetration 130Y of portion shown in Figure 9, dispose emitting led 131Y, measurement of concetration in the side of relative gap 130cY and measure with photo detector 132Y and luminous intensity and use photo detector 133Y.In addition, the opposite side at relative gap 130cY disposes reflectance coating 140Y.
According to such structure, the light that sends by emitting led 131Y, have two light paths: light path one, penetrate the liquid developer of liquid developer near the emitting led 131Y side of transparent spiral oar 122Y, transparent spiral oar 122Y, reflectance coating 140 sides, and reflect by reflectance coating 149Y, again the liquid developer of penetrate through reflective film 140 sides, transparent spiral oar 122Y, near the measurement of concetration of transparent spiral oar 122Y liquid developer with photo detector 132Y side, thereby be subjected to light in the light path of measurement of concetration with photo detector 132Y; Light path two penetrates the liquid developer near the emitting led 131Y side of transparent spiral oar 122Y, is used photo detector 133Y thereby measured in luminous intensity by light.
Emitting led 131Y, measurement of concetration are measured with photo detector 132Y and luminous intensity and are used photo detector 133Y, are connected with CPU134Y respectively.Emitting led 131Y is connected with CPU134Y via amplifier 135Y, and measurement of concetration is connected with CPU134Y via an A/D transducer 136Y with photo detector 132Y, and luminous intensity is measured with photo detector 133Y and is connected with CPU134Y via the 2nd A/D transducer 137Y.
Reclaim and, change solids fraction concentration by the developer roll 20Y of developer roll cleaning balde 21Y after develop according to view data to the liquid developer that recoverer 36Y carries.And, be panchromatic timing in view data, most solid particles moves on photoreceptor and is consumed, therefore, the solids fraction concentration step-down of the liquid developer of recovery.In addition, when view data was shadow tone, the solid particles that moves to photoreceptor was few, and the solids fraction concentration of the liquid developer of recovery changes hardly.
Scrape the liquid developer of getting and be transported to recoverer 36Y from the photoreceptor compression roller 13Y that develops back and the photoreceptor 10Y butt of primary transfer and describe residual liquid developer by compression roller cleaning balde 14Y, the ratio of its carrier accounts for mostly, and solids fraction concentration is lower.
By with primary transfer after the photoreceptor cleaning balde 15Y of photoreceptor 10Y butt reclaim, and temporarily be transported in the yellow liquid developer with surge tank 70Y, the ratio of its carrier accounts for mostly, and solids fraction concentration is lower.
Supply to the amount of liquid developer of the reservoir 35Y of developer reservoir 31Y, more than along with the mode of the liquid developer consumption that develops is set, therefore, liquid developer can be crossed partition wall to recoverer 36Y overflow with a little.Be adjusted to aimed concn from the liquid developer of reservoir 35Y overflow, so concentration does not change.
In the withdrawal liquid developer of the recoverer 36Y that flows into developer reservoir 31Y, the amount of the liquid developer that is reclaimed by the developer roll 20Y of developer roll cleaning balde 21Y after develop is maximum, and the change of its solids fraction concentration is maximum also.Therefore, the solids fraction concentration of the liquid developer that reclaims from developer roll 20Y can have influence on the solids fraction concentration of withdrawal liquid developer integral body.
For the liquid developer that will reclaim is adjusted to aimed concn utilizing again, and in order to prevent colour mixture, a concentration adjustment jar 82Y color of regulating concentration is provided with one, therefore has to make low capacity.For example, for the solids fraction concentration 17% of the liquid developer in the concentration adjustment jar 82Y that will reclaim becomes target solids fraction concentration 20%, supplying with, when solids fraction concentration in the agitation of toner jar 81Y is 35% new toner, must in concentration adjustment jar 82Y, increase the remaining volume of new toner.
But, when the liquid developer that will reclaim from the recoverer 36Y of development section directly is transported to concentration adjustment jar 82Y, when the solids fraction concentration of withdrawal liquid developer is lower than setting, have in concentration adjustment jar 82Y, supply with the new toner of many high concentrations, so that in concentration adjustment jar 82Y, be adjusted to aimed concn, and under the state that the capacity of concentration adjustment jar 82Y is restricted, will produce and be difficult to the problem of efficiently solids fraction concentration being regulated.
Therefore, in the recovery system of liquid developer of the present invention, be provided with the developer solution hold-up vessel 83Y of temporary transient storage from the liquid developer of the recoverer 36Y recovery of development section.By developer solution hold-up vessel 83Y being disposed at the upstream side of concentration adjustment jar 82Y, thus can be corresponding with the variation of the solids fraction concentration of the liquid developer that reclaims.
And then, for corresponding with the variation of the solids fraction concentration of the liquid developer that reclaims, in second embodiment of the present invention, to temporarily store the liquid developer in the developer solution hold-up vessel 83Y of the liquid developer that reclaims from the recoverer 36Y of development section by distributor gear 84Y, be assigned to yellow with concentration adjustment jar 82Y and discarded jar 90.
As the principal element of the distribution of the 84Y of Control Allocation mechanism, be the solids fraction concentration of setting the withdrawal liquid developer in the recoverer 36Y.Solids fraction concentration change in the recoverer 36Y is to very big by the variable effect of the solids fraction of the liquid developer of the developer roll 20Y recovery of developer roll cleaning balde 21Y after the described development.The variation of its solids fraction changes according to view data, therefore, uses the device 100 of counting that obtains according to view data, thereby can extrapolate the solids fraction concentration of the withdrawal liquid developer in the recoverer 36Y based on its data.
Image processing system of the present invention applies specified signal to the picture signal based on view data, be made into the print point data relevant with the arrangement of print point, on photoreceptor 10Y, form electrostatic latent image then, make this latent electrostatic image developing by liquid developer again corresponding to print point.Therefore, by counting, and can calculate consumption of toner to counting based on the printing of view data.As the use technology that 100 pairs of consumption of toner of device calculate of counting, comprise the continuity do not considered a little and only to each point of each view data independently calculate consumption of toner single counting technology, consider one dimension down the some continuity and calculate consumption of toner the one dimension counting technology, consider view data the two-dimensional space arrangement of point and two-dimentional first counting technologies of reckoning consumption of toner etc. but also can use any counting technology.
Figure 10 is the order of process flow diagram of the recovery system of expression one routine liquid developer of the present invention.The order of this flow process is, at first in (1) operation, calculates mechanism by the withdrawal liquid concentration of developer of the device 100 of counting, and whether the solids fraction concentration of judging the liquid developer in the developer solution hold-up vessel 83Y not enough setting (5%).When (1) operation is judged to be solids fraction concentration less than 5% (YES), change (2) operation over to.When (1) operation is judged to be solids fraction concentration above 5% (NO), then change (3) operation over to.
In (2) operation, utilize distributor gear 84Y that the withdrawal liquid developer in the developer solution hold-up vessel 83Y was alternately carried to concentration adjustment jar 82Y and discarded jar 90 in per 5 seconds.After 10 seconds, turn back to (1) operation, the withdrawal liquid concentration of developer by the device 100 of counting is calculated mechanism, and whether the solids fraction concentration of judging the withdrawal liquid developer in the developer solution reservoir 83Y not enough setting (5%).
In (3) operation, the solids fraction concentration that is judged to be the withdrawal liquid developer surpassed 5% withdrawal liquid developer and be transported to concentration adjustment jar 82Y.
In flow sequence shown in Figure 10, in (2) operation, the driving of the pump of the withdrawal liquid developer of carrying developer solution reservoir 83Y was stopped for 5 seconds, then pump was started for 5 seconds, the withdrawal liquid developer is transported to concentration adjustment jar 82Y.In addition, in (2) operation, the driving of the pump of the withdrawal liquid developer of carrying developer solution reservoir 83Y also can drive for 10 seconds according to 50% of normal carrying liquid velocity.Return (1) operation after 10 seconds once more, the withdrawal liquid concentration of developer by the device 100 of counting is calculated mechanism, and whether the solids fraction concentration of judging the withdrawal liquid developer in the developer solution reservoir 83Y not enough setting (5%).In (3) operation, the solids fraction concentration that is judged to be the withdrawal liquid developer is surpassed 5% withdrawal liquid developer, carried for 10 seconds with normal carrying liquid velocity (100%) to concentration adjustment jar 82Y.
In the flow sequence shown in Figure 11, in (4) operation, the withdrawal liquid concentration of developer by the device 100 of counting is calculated mechanism, and whether the solids fraction concentration of judging the withdrawal liquid developer in the developer solution reservoir 83Y not enough setting (5%).When in (4) operation, being judged to be solids fraction concentration less than 5% (YES), change (5) operation over to.When in (4) operation, being judged to be solids fraction concentration, change (7) operation over to above 5% (NO).
In (5) operation, judge whether the liquid level of concentration adjustment jar 82Y surpasses setting (118mm).The liquid level that is judged to be concentration adjustment jar 82Y in (5) operation surpasses setting (118mm) (YES) time, changes (6) operation over to.The not enough setting of liquid level (118mm) that is judged to be concentration adjustment jar 82Y in (5) operation changes (7) operation over to (NO) time.
In (5) operation, the liquid level of concentration adjustment jar 82Y stopped for 5 seconds with the driving of carrying the pump of developer solution reservoir 83Y more than setting, when the brimmer sensor is following; The liquid level of concentration adjustment jar 82Y is more than the setting and when the brimmer sensor is above, and the driving of the pump of developer solution reservoir 83Y was stopped for 5 seconds, and via distributor gear 84Y with the withdrawal liquid developer to discarded jar 90 carrying.Return (4) operation after 5 seconds, the withdrawal liquid concentration of developer by the device 100 of counting is calculated mechanism, and whether the solids fraction concentration of judging the withdrawal liquid developer in the developer solution reservoir 83Y not enough setting (5%).
In (7) operation, the driving of the pump of developer solution reservoir 83Y was stopped for 5 seconds, and the withdrawal liquid developer is carried to concentration adjustment jar 82Y via distributor gear 84Y.Return (4) operation after 5 seconds, the withdrawal liquid concentration of developer by the device 100 of counting is calculated mechanism, and whether the solids fraction concentration of judging the withdrawal liquid developer in the developer solution reservoir 83Y not enough setting (5%).
As mentioned above, liquid developer collecting of the present invention, simple in structure, and the concentration adjustment of the liquid developer that can reclaim efficiently, configuration space that can reduction means, thus can the miniaturization of image processing system be contributed.
Claims (14)
1, a kind of liquid developer collecting is characterized in that, has:
The developer roll cleaning section, its liquid developer to developer roll reclaims;
The developer solution reservoir, it stores the liquid developer that is reclaimed by described developer roll cleaning section;
Concentration adjustment portion, it stores from described developer solution reservoir and is handled upside down next liquid developer, and the concentration of liquid developer is regulated.
2, liquid developer collecting as claimed in claim 1 is characterized in that, has:
Waste liquid tank;
Dispenser is allocated in described concentration adjustment portion and described waste liquid tank with the liquid developer of described developer solution reservoir.
3, liquid developer collecting as claimed in claim 2 is characterized in that, has:
Reclaim liquid concentration reckoning portion, it extrapolates the concentration of the liquid developer that is reclaimed by the developer roll cleaning section according to by counting that view data obtains;
Control part, it is controlled described dispenser according to the data that obtained by described recovery liquid concentration reckoning portion.
4, as each described liquid developer collecting in the claim 1～3, it is characterized in that having:
Development section, it has described developer roll;
Liquid level sensor, it is disposed at described concentration adjustment portion;
Concentration sensor, it is disposed at described concentration adjustment portion;
Trucking department, its from described concentration adjustment portion at development section to described development section carrying liquid developer.
5, as each described liquid developer collecting in the claim 1～4, it is characterized in that having:
The toner jar, its storaging liquid developer;
Carrier tank, its storaging liquid carrier;
The liquid developer supply unit, its from described toner jar to described concentration adjustment portion feed fluid developer;
The liquid-carrier supply unit, its from described carrier tank to described concentration adjustment portion feed fluid carrier.
6, as each described liquid developer collecting in the claim 1～5, it is characterized in that having:
Trucking department mechanism, it will be transported to described concentration adjustment portion by the liquid developer that compression roller reclaims from photoreceptor.
7, as each described liquid developer collecting in the claim 1～6, it is characterized in that possessing:
Partition wall, it is disposed at described development section;
Reservoir, it supplies to liquid developer the described developer roll that is separated by described partition wall;
Recoverer, its inflow have the liquid developer that is reclaimed by described developer roll cleaning section,
And make and cross the liquid developer that described partition wall overflows from described reservoir and flow into recoverer.
8, a kind of image processing system is characterized in that, has:
Photoreceptor, it is formed with electrostatic latent image;
Development section, it develops by liquid developer and described electrostatic latent image is formed image;
Transfer printing portion, the described photoreceptor image of its transfer printing;
The developer roll cleaning section, its liquid developer to developer roll reclaims;
The developer reservoir, it stores the liquid developer that is reclaimed by described developer roll cleaning section;
Concentration adjustment portion, it stores from described developer solution reservoir and is handled upside down next liquid developer, and the concentration of liquid developer is regulated.
9, image processing system as claimed in claim 8 is characterized in that, has:
Waste liquid tank;
Dispenser mechanism, its liquid developer with described developer solution reservoir is allocated in described concentration adjustment portion and waste liquid tank.
10, image processing system as claimed in claim 9 is characterized in that, has:
Reclaim liquid concentration reckoning portion, it extrapolates the concentration of withdrawal liquid developer according to counting by view data is resulting;
Control part, it is controlled described dispenser according to the data that obtained by described recovery liquid concentration reckoning portion.
11, as each described image processing system in the claim 8～10, it is characterized in that having:
Liquid level sensor, it is disposed at described concentration adjustment portion;
Concentration sensor, it is disposed at described concentration adjustment portion;
Trucking department, it is transported to described development section with liquid developer from described concentration adjustment portion.
12, as each described image processing system in the claim 8～11, it is characterized in that having:
The toner jar, its storaging liquid developer;
Carrier tank, its storaging liquid carrier;
The liquid developer supply unit, its from described toner jar to described concentration adjustment portion feed fluid developer;
The liquid-carrier supply unit, its from described carrier tank to described concentration adjustment portion feed fluid carrier.
13, as each described image processing system in the claim 8～12, it is characterized in that having:
Compression roller, it is disposed at photoreceptor;
Trucking department, it will be transported to described concentration adjustment portion by the liquid developer that described compression roller reclaims.
14, as each described image processing system in the claim 8～13, it is characterized in that having:
Partition wall, it is disposed at described development section;
Reservoir, it supplies to liquid developer the described developer roll that is separated by described partition wall;
Recoverer, its inflow have the liquid developer that reclaims from described developer roll cleaning section,
And make and cross the liquid developer that described partition wall overflows from described reservoir and flow into recoverer.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-277541 | 2007-10-25 | ||
| JP2007277541 | 2007-10-25 | ||
| JP2007277541 | 2007-10-25 | ||
| JP2008130607 | 2008-05-19 | ||
| JP2008-130607 | 2008-05-19 | ||
| JP2008130607A JP2009122631A (en) | 2007-10-25 | 2008-05-19 | Liquid developer collecting system and image forming apparatus including the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101419424A true CN101419424A (en) | 2009-04-29 |
| CN101419424B CN101419424B (en) | 2011-01-26 |
Family
ID=40630244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101667924A Expired - Fee Related CN101419424B (en) | 2007-10-25 | 2008-10-27 | Liquid developer collecting system and image forming apparatus including the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009122631A (en) |
| CN (1) | CN101419424B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843016A (en) * | 2015-02-04 | 2016-08-10 | 富士施乐株式会社 | Toner adjusting mechanism and image forming apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019056731A (en) * | 2017-09-19 | 2019-04-11 | キヤノン株式会社 | Image forming apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4476507B2 (en) * | 2001-03-19 | 2010-06-09 | 株式会社リコー | Image forming apparatus |
| JP2002258620A (en) * | 2001-02-28 | 2002-09-11 | Ricoh Co Ltd | Wet image forming device |
-
2008
- 2008-05-19 JP JP2008130607A patent/JP2009122631A/en not_active Withdrawn
- 2008-10-27 CN CN2008101667924A patent/CN101419424B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843016A (en) * | 2015-02-04 | 2016-08-10 | 富士施乐株式会社 | Toner adjusting mechanism and image forming apparatus |
| CN105843016B (en) * | 2015-02-04 | 2019-05-14 | 富士施乐株式会社 | Toner adjustment mechanism and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101419424B (en) | 2011-01-26 |
| JP2009122631A (en) | 2009-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101943875B (en) | Developing device, process cartridge and image forming apparatus | |
| US7630671B2 (en) | Developing system that distributes carrier to developer containers in a manner to achieve stable image formation | |
| EP2028563A2 (en) | Development device, developing method, and image forming device | |
| EP0834783B1 (en) | Liquid developing material replenishment system and method | |
| US8036555B2 (en) | Liquid measuring device with floating member having magnetic field generators | |
| CN101373359A (en) | Development device, development method, and image forming device | |
| CN101419424B (en) | Liquid developer collecting system and image forming apparatus including the same | |
| US7657210B2 (en) | Developer collection system and image forming apparatus using the same | |
| US20090110424A1 (en) | Liquid Developer Collecting System and Image Forming Apparatus Including the Same | |
| US4866481A (en) | Image forming apparatus having a plurality of developers and a detection and control arrangement for detecting the density of a formed image and a controller for controlling the density of the image | |
| US8014702B2 (en) | Liquid developer collection apparatus and image forming apparatus | |
| JP2009199056A (en) | Image forming device and cleaning device | |
| CN100395671C (en) | Wet electric photographic image forming machine and method for judging developing box using life used thereof | |
| US8005382B2 (en) | Liquid developer collecting system and image forming apparatus including the same | |
| CN101419425B (en) | Liquid developer collecting system and image forming apparatus including the same | |
| CN101436031B (en) | Liquid developer collecting system and image forming apparatus including the same | |
| US20100067950A1 (en) | Image Forming Apparatus, Photoreceptor Unit, and Transfer Belt Unit | |
| CN101373361B (en) | Density measuring device, liquid developer storing apparatus, and image forming apparatus | |
| JP2002502505A (en) | Color control device for electronic recording printer | |
| JP4853624B2 (en) | Image forming apparatus | |
| CN101504526A (en) | Developing device, image forming apparatus, and image forming method | |
| JP4973833B2 (en) | Image forming apparatus | |
| JP2004205565A (en) | Developing device and image forming apparatus using the same | |
| JP2009075558A (en) | Liquid measuring device, liquid developer storing apparatus and image forming apparatus | |
| JP2010281923A (en) | Image forming apparatus and cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20151027 |
|
| EXPY | Termination of patent right or utility model |