CN101281384B - Developing apparatus, image forming apparatus, image forming system and image forming method - Google Patents
Developing apparatus, image forming apparatus, image forming system and image forming method Download PDFInfo
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- CN101281384B CN101281384B CN2008100818081A CN200810081808A CN101281384B CN 101281384 B CN101281384 B CN 101281384B CN 2008100818081 A CN2008100818081 A CN 2008100818081A CN 200810081808 A CN200810081808 A CN 200810081808A CN 101281384 B CN101281384 B CN 101281384B
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Abstract
A surface of a developer carrying member of the present invention has recess arranged regularly, which can be rotating with the developer. A contacting member is composed of rubber elastic bodies, connecting with the surface of the developer carrying member, and being vibration accompanying with wheeling round of the developer carrying member. When the developer carrying member is revolving, a value that the travelling speed of the surface is divided by the distance between the recesses in the circumferential direction of the developer carrying member is less than number of vibration of the connecting member losing maximal tangent value that the losing elastic modulus of the connecting member is divided by a storage elastic modulus.
Description
Technical field
The present invention relates to developing apparatus, image processing system, image formation system, reach image forming method.
Background technology
Image processing system is had a laser beam printer etc. by what the people knew usually.Described image processing system for example has the picture that supports sub-image and supports body, utilizes developer will support the developing apparatus that supports the image development of body in picture.Also have, image processing system will support the image development that supports body in picture with the developer in the developing apparatus, formation developer picture sending from external device (ED)s such as computing machines under the situation of picture signal etc., this developer is looked like to be needed on the medium, finally on medium, form image.
Above-mentioned developing apparatus possess can with support developer and the developer of state rotation supports body, this developer supports body and utilizes developer will support the image development that supports body in picture.Also have, consider sometimes on the surface that this developer supports body to support sufficient amount developer situation etc. and the recess of configuration regularly is set.In addition, be provided with by rubber elastomer at developing apparatus and constitute and support the butt parts of the described surperficial butt of body with described developer.As these butt parts, for example, have to limit to support the bed thickness limiting part of bed thickness that supports the developer of body in developer.
[patent documentation 1] spy opens the 2006-259384 communique
Yet, know the butt parts that constitute by rubber elastomer size according to the temperature of these butt parts, show character character or glassy state of rubbery state.Also have, using usually in the temperature of butt parts, these butt parts show the character of rubbery state.Therefore, require to be provided with under the situation of butt parts, also use this butt parts with the character of rubbery state at developing apparatus.
In addition, know that the butt parts vibrate sometimes, but the butt parts show the character of rubbery state or the character of glassy state according to the size of vibration number.Promptly, if the value that the loss elastic modulus of these butt parts is obtained divided by the storage elastic modulus is as loss tangent (tan δ), then the vibration number of these butt parts greater than the vibration number of described loss tangent (tan δ) when becoming maximum (below, also be called " loss tangent maximum vibration number ") situation under, this butt parts show the character of glassy state.Under the situation of the vibration number of butt parts less than described loss tangent maximum vibration number, these butt parts show the character of rubbery state on the other hand.
As mentioned above, butt parts and developer support surface (this surface the has recess) butt of body, and this developer supports body when it rotates and the sliding friction of butt parts, makes this butt component vibration thus.Also have, follow developer to support the rotation of body and under the situation of vibration number greater than described loss tangent maximum vibration number of the butt parts that vibrate, therefore these butt parts show the character of glassy state, can not satisfy above-mentioned requirements.
In addition, know that the butt parts follow developer to support the rotation of body sometimes and vibrate, but the butt parts show the character of rubbery state or the character of glassy state according to vibration number.Therefore, in order to satisfy above-mentioned requirements, wish the vibration number of the butt parts when the management developer supports the body rotation, so that the butt parts show the character of rubbery state.
On the other hand, using under the situation of butt parts, following the vibration of butt parts sometimes and extraordinary noise takes place with the character of rubbery state.At this, the butt parts that are made of rubber elastomer show dynamic viscoelastic (elastic property and adhesion properties), but under the big situation of the influence of the elastic property in these two character, the amplitude the during vibration of butt parts becomes big, therefore, bring into play extraordinary noise easily.
In addition, knowing has the butt parts to follow developer to support the rotation of body sometimes and vibrate, but the butt parts show the character of rubbery state or the character of glassy state according to the size of vibration number.Therefore, in order to satisfy above-mentioned requirements, wish the vibration number of management butt parts, so that the butt parts show the character of rubbery state.
On the other hand, use under the situation of butt parts in the character with rubbery state, follow the vibration of butt parts sometimes, the temperature of butt parts rises.At this, the butt parts that are made of rubber elastomer show dynamic viscoelastic (elastic property and adhesion properties), but under the big situation of the influence of the adhesion properties in these two character, the strand that constitutes the butt parts easily vibrates, therefore, easily produce heat, its result, the temperature of butt parts easily rises.
Yet as mentioned above, described butt parts and developer support the surperficial butt of body, and in addition, this surface that supports body at this developer is provided with the recess of configuration regularly.Therefore, if developer supports the body rotation, then because this developer supports body with respect to the slip of butt parts, thus the butt component vibration.
Also have, know that if the vibration number of butt parts (translational speed on the described surface when developer supports the body rotation supports the value that the spacing that makes progress in week of body obtains divided by this developer of described recess and is equivalent to this vibration number) is excessive, then the butt parts that are made of rubber elastomer are not the character that shows rubbery state, and show the character of glassy state.Thereby, when developing, need make developer support body so that the rotating speed rotation of described vibration number constant (that is, making the butt parts not show the character of glassy state) too much.
Yet, if show that with the butt parts state of the character of rubbery state carries out described development, because based on the adhesiveness of the butt parts of the character of this rubbery state etc., butt parts generation filming (filming).Also have,, then cause developing and finally be formed at the image quality deterioration of the image of medium if this filming becomes significantly.
Summary of the invention
When being to be implemented in developer and supporting the body rotation, one of purpose of the present invention suitably uses developing apparatus, image processing system, and the image formation system of butt parts with the character of rubbery state.
One of purpose of the present invention is to support body when rotation at developer, suitably uses the butt parts with the character of rubbery state, and suppresses to follow the generation of extraordinary noise of the vibration of butt parts.
One of purpose of the present invention is suitably to use the butt parts with the character of rubbery state when developer supports the body rotation, and suppresses the temperature rising of butt parts.
Also have, one of purpose of the present invention is suitably to prevent the deterioration of the image quality of image.
To achieve these goals, first mode according to the present invention provides a kind of developing apparatus, and possess: developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer; The butt parts, it is to be made of rubber elastomer, and support the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate, described developing apparatus is characterised in that, the translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer, and the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus than the loss elastic modulus at described butt parts becomes maximum is little.According to such developing apparatus as can be known, can when supporting the body rotation, developer use the butt parts with the character of rubbery state.
In addition, in described developing apparatus, preferred described butt parts are to be used for limiting with described surperficial butt supporting the bed thickness limiting part of bed thickness that supports the developer of body in described developer.Under described situation, can prevent that the bed thickness limiting part from using with the character of glassy state and cause limiting inadequately the situation of the bed thickness of developer.
In addition, in described developing apparatus, preferred described butt parts are so that the long side direction of described butt parts supports the axial of body along described developer, and an end that makes the short side direction of described butt parts supports the mode of the sense of rotation upstream side of body towards this developer, with described surperficial butt, described butt parts on described short side direction, leave from a described end with abutting part described surperficial butt.
In addition, in described developing apparatus, preferred described recess is with respect to described circumferential two kinds of different spiral fashion slot parts of angle of inclination, these two kinds of spiral fashion slot parts intersect mutually and are lattice shape, described developer supports body to have: by the foursquare end face that described two kinds of spiral fashion slot parts surround, the diagonal line in two diagonal line that this foursquare end face has is along described circumferential.Under described situation, the correct recess of rule is formed at the surface that developer supports body easily.
In addition, in described developing apparatus, preferred this developing apparatus can be with respect to the image processing system main body loading and unloading of image processing system, described image processing system is set with the serviceability temperature zone, the vibration number of the described butt parts when described loss tangent becomes maximum is according to the size of temperature and difference, the translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by described developer, and the vibration number of these butt parts when becoming maximum than the described loss tangent under all temperature in described serviceability temperature zone is little.Under described situation, when the image processing system carries out image forms, must use the butt parts with the character of rubbery state.
In addition, in described developing apparatus, preferred described butt parts are made of thermoplastic elastomer.
In addition, in described developing apparatus, the translational speed that preferred described developer supports the described surface in body when rotation supports value that the spacing of the described recess that makes progress in week of body obtains such as described vibration number is little down divided by this developer, that is: this vibration number is the little vibration number of vibration number of the described butt parts when described loss tangent becomes maximal value, and when this vibration number, described loss tangent become described peaked half.Under described situation, when developer supports the body rotation, the butt parts are suitably used with the character of rubbery state.
Equally, according to first mode of the present invention as can be known, provide a kind of picture shape device, it is characterized in that possessing: the picture that (a) is used to support sub-image supports body;
(b) be used to utilize developer, will support the developing apparatus that looks like to support the image development of body in this,
Described developing apparatus (c) possesses:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer, and the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus than the loss elastic modulus at described butt parts becomes maximum is little.
Equally, according to first mode of the present invention as can be known, provide a kind of image formation system, it is characterized in that possessing:
(A) computing machine and (B) image processing system that can be connected with this computing machine,
Described image processing system possesses:
(a) picture that is used to support sub-image supports body;
(b) be used to utilize developer, will support the developing apparatus that looks like to support the image development of body in this,
Described developing apparatus (C) possesses:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer, the vibration number little (c) of these butt parts the when loss tangent that obtains divided by the storage elastic modulus than the loss elastic modulus at described butt parts becomes maximum.According to such image formation system as can be known, when developer supports the body rotation, can use the butt parts with the character of rubbery state.
To achieve these goals, according to second mode of the present invention as can be known, provide a kind of developing apparatus, it is characterized in that possessing:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of these butt parts when the loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus becomes maximum, with the vibration number that makes described storage elastic modulus less than the identical size of the vibration number of described loss elastic modulus.But according to such developing apparatus monkey, support body when rotation, suitably use the butt parts, and can suppress to follow the generation of extraordinary noise of the vibration of butt parts with the character of rubbery state at developer.
In addition, in described developing apparatus, preferred described butt parts are to be used for limiting with described surperficial butt supporting the bed thickness limiting part of bed thickness that supports the developer of body in described developer.Under described situation, use the bed thickness limiting part with the character of rubbery state, suitably limit the bed thickness of developer.
In addition, in described developing apparatus, preferred described recess is with respect to described circumferential two kinds of different spiral fashion slot parts of angle of inclination,
These two kinds of spiral fashion slot parts intersect mutually and are lattice shape,
Described developer supports body to have: by the foursquare end face of described two kinds of spiral fashion slot parts encirclement,
Diagonal line in two diagonal line that this foursquare end face has is along described circumferential.Under described situation, the correct recess of rule is formed at the surface easily.
Equally, second mode according to the present invention provides a kind of image processing system as can be known, it is characterized in that possessing:
(a) picture that is used to support sub-image supports body;
(b) be used to utilize developer, will support the developing apparatus that looks like to support the image development of body in this,
Described developing apparatus possesses:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of these butt parts when the loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus becomes maximum, with the vibration number (c) that makes described storage elastic modulus less than the identical size of the vibration number of described loss elastic modulus.According to such image processing system as can be known, support body when rotation, can suitably use the butt parts, and can suppress to follow the generation of the extraordinary noise of butt parts with the character of rubbery state at developer.
Equally, according to second mode of the present invention as can be known, provide a kind of image formation system, it is characterized in that possessing:
(A) computing machine and (B) image processing system that can be connected with this computing machine,
Described image processing system possesses:
(a) picture that is used to support sub-image supports body;
(b) be used to utilize developer, will support the developing apparatus that looks like to support the image development of body in this,
Described developing apparatus (C) possesses:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of these butt parts when the loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus becomes maximum, with the vibration number (c) that makes described storage elastic modulus less than the identical size of the vibration number of described loss elastic modulus.According to such image formation system as can be known, when developer rotates, can suitably use the butt parts with the character of rubbery state, the extraordinary noise of the vibration of butt parts is followed in its Eng inhibition.
To achieve these goals, according to Third Way of the present invention as can be known, provide a kind of developing apparatus, it is characterized in that possessing:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of these butt parts when the loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus becomes maximum, with the vibration number that makes described mistake elastic modulus less than the identical size of the vibration number of described storage elastic modulus.According to such developing apparatus as can be known, when developer supports the body rotation, can suitably use the butt parts, and can suppress the temperature rising of butt parts with the character of rubbery state.
In addition, in described developing apparatus, preferred described butt parts are to be used for limiting with described surperficial butt supporting the bed thickness limiting part of bed thickness that supports the developer of body in described developer.Under described situation, suitably use the bed thickness limiting part with the character of rubbery state, suitably limit the bed thickness of developer.
In addition, in described developing apparatus, preferred described butt parts so that the long side direction of described butt parts along described developer support body axially, and make an end of the short side direction of described butt parts support the mode of the sense of rotation upstream side of body towards this developer, with described surperficial butt
Described butt parts on described short side direction, leave from a described end with abutting part described surperficial butt.Under described situation, suppress the generation of the film between an abutting part and the end.
In addition, in described developing apparatus, preferred described recess is with respect to described circumferential two kinds of different spiral fashion slot parts of angle of inclination,
These two kinds of spiral fashion slot parts intersect mutually and are lattice shape,
Described developer supports body to have: by the foursquare end face of described two kinds of spiral fashion slot parts encirclement,
Diagonal line in two diagonal line that this foursquare end face has is along described circumferential.Under described situation, the recess of regular tangent is formed at the surface easily.
Equally, according to Third Way of the present invention as can be known, provide a kind of image processing system, it is characterized in that possessing:
(a) picture that is used to support sub-image supports body;
(b) be used to utilize developer, will support the developing apparatus that looks like to support the image development of body in this,
Described developing apparatus possesses:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of these butt parts when the loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus becomes maximum, with the vibration number that makes described loss elastic modulus less than the identical size of the vibration number of described storage elastic modulus.According to such image processing system as can be known, when developer supports the body rotation, can suitably use the butt parts, and can suppress the temperature rising of butt parts with the character of rubbery state.
Equally, according to Third Way of the present invention as can be known, provide a kind of image formation system, it is characterized in that possessing:
(A) computing machine and (B) image processing system that can be connected with this computing machine,
Described image processing system possesses:
(a) picture that is used to support sub-image supports body;
(b) be used to utilize developer, will support the developing apparatus that looks like to support the image development of body in this,
Described developing apparatus (C) possesses:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of these butt parts when the loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus becomes maximum, with the vibration number that makes described loss elastic modulus less than the identical size of the vibration number of described storage elastic modulus (c).According to such image processing system as can be known, when developer supports the body rotation, can suitably use the butt parts, and can suppress the temperature rising of butt parts with the character of rubbery state.
To achieve these goals, according to cubic formula of the present invention as can be known, provide a kind of image processing system, it is characterized in that, comprising: the picture that (A) is used to support sub-image supports body; (B) developer supports body, and it is the recess that possesses regularly configuration on the surface, and the developer that can rotate that is used to support developer supports body, utilizes to support the developer that supports body in this developer and carry out the development of described sub-image; (C) the butt parts that constitute by rubber elastomer, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate; (D) controller, it is after the described developer of beginning supports the rotation of body, the rotating speed that this developer is supported body is increased to first rotating speed, after the rotating speed that described developer supports body becomes described first rotating speed, the speed drop that described developer is supported body is low to moderate second rotating speed, make described developer support the development that body carries out described sub-image with this second rotating speed rotation, described first rotating speed is translational speed that this developer supports the described surface in body when rotation supports the described recess that makes progress in week of body greater than this developer a spacing, the long-pending rotating speed of the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts becomes maximum, described second rotating speed is that described translational speed is less than described long-pending rotating speed (E).
According to such image processing system as can be known, suitably prevent the deterioration of the image quality of image.
In addition, also can be as described below, have: development bias voltage applying unit, it supports body for the development of described sub-image to described developer and applies the development bias voltage, described controller is after the rotating speed that described developer supports body becomes described first rotating speed, the rotating speed that makes described developer support body becomes and described long-pending the 3rd rotating speed that equates via described translational speed from this first rotating speed, be reduced to described second rotating speed, and after the rotating speed that described developer supports body becomes described the 3rd rotating speed, utilize described development bias voltage applying unit to begin applying of described development bias voltage.
Under described situation, suitably reclaim film.
In addition, also can be as described below, described controller is after the rotating speed that described developer supports body becomes described the 3rd rotating speed, passed through after the time point of time as described below, utilize described development bias voltage applying unit to begin applying of described development bias voltage, this time is that the further rotation that the part of described butt parts butt follows described developer to support body when supporting rotating speed in the surface of body, that described developer supports body and becoming described the 3rd rotating speed of described developer moves to the time that supports the opposed position of body with described picture.
Under described situation, suitably reclaim film.
To achieve these goals, according to the 5th mode of the present invention as can be known, provide a kind of image processing system, it is characterized in that, comprising: the picture that (A) is used to support sub-image supports body; (B) developer supports body, and it is the recess that possesses regularly configuration on the surface, and the developer that can rotate that is used to support developer supports body, utilizes to support the developer that supports body in this developer and carry out the development of described sub-image; (C) the butt parts that constitute by rubber elastomer, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate; (D) controller, it makes the described developer with the rotation of the 5th rotating speed support the development that body carries out described sub-image, after the development of this sub-image finishes, the rotating speed that described developer is supported body is increased to described translational speed greater than described the 4th long-pending rotating speed, after the rotating speed that described developer supports body becomes described the 4th rotating speed, the rotation that makes described developer support body stops, and described the 5th rotating speed is translational speed that described developer supports the described surface in body when rotation supports the described recess that makes progress in week of body less than this developer a spacing, the long-pending rotating speed (E) of the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts becomes maximum.
According to such image processing system as can be known, prevent the deterioration of the image quality of image.
In addition, also can be as described below, have: development bias voltage applying unit, it supports body for the development of described sub-image to described developer and applies the development bias voltage, described controller is after the development of described sub-image finishes, the rotating speed that described developer is supported body becomes and described long-pending the 3rd rotating speed that equates via described translational speed from described the 5th rotating speed, be increased to described the 4th rotating speed, and after the rotating speed that described developer supports body becomes described the 3rd rotating speed, passed through in the surface that described developer supports body, the part of described butt parts butt was followed described developer to support the further rotation of body and is moved to described picture and support before the time point of time of the opposed position of body when the rotating speed that described developer supports body became described the 3rd rotating speed, finished to utilize applying of described development bias voltage that described development bias voltage applying unit carries out.
Under described situation, suitably reclaim film.
In addition, also can become described the 3rd rotating speed at the rotating speed that described developer supports body before, finish to utilize applying of described development bias voltage that described development bias voltage applying unit carries out.
In addition, also can be as described below, have: strip parts, its described surface that is used for supporting with described developer body contacts, support body from described developer and strip described developer, described controller is after the rotating speed that described developer supports body becomes described the 4th rotating speed, when stopping described developer and supporting the rotation of body, after the rotating speed that described developer supports body becomes described the 3rd rotating speed, passed through in the surface that described developer supports body, when the rotating speed that described developer supports body becomes described the 3rd rotating speed the part of described butt parts butt move to the further rotation of following described developer to support body and with the time point of the described time that strips the parts position contacting after, stop described rotation.
Under described situation, film supports body at developer and is suitably stripped by being stripped parts before stopping.
Equally, according to cubic formula of the present invention as can be known, provide a kind of image formation system, it is characterized in that possessing: computing machine and the image processing system that can be connected with this computing machine, described image processing system possesses: the picture that is used to support sub-image supports body; Developer supports body, and it is the recess that possesses regularly configuration on the surface, and the developer that can rotate that is used to support developer supports body, utilizes to support the developer that supports body in this developer and carry out the development of described sub-image; By the butt parts that rubber elastomer constitutes, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate; Controller, it is after the described developer of beginning supports the rotation of body, the rotating speed that this developer is supported body is increased to first rotating speed, after the rotating speed that described developer supports body becomes described first rotating speed, the speed drop that described developer is supported body is low to moderate second rotating speed, make described developer support the development that body carries out described sub-image with this second rotating speed rotation, described first rotating speed is translational speed that this developer supports the described surface in body when rotation supports the described recess that makes progress in week of body greater than this developer a spacing, the long-pending rotating speed of the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts becomes maximum, described second rotating speed is that described translational speed is less than described long-pending rotating speed.
According to such image formation system as can be known, suitably prevent the deterioration of the image quality of image.
Equally, according to the 5th mode of the present invention as can be known, provide a kind of image formation system, it is characterized in that possessing: computing machine and the image processing system that can be connected with this computing machine, described image processing system possesses: the picture that is used to support sub-image supports body; Developer supports body, and it is the recess that possesses regularly configuration on the surface, and the developer that can rotate that is used to support developer supports body, utilizes to support the developer that supports body in this developer and carry out the development of described sub-image; By the butt parts that rubber elastomer constitutes, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate; Controller, it makes the described developer with the rotation of the 5th rotating speed support the development that body carries out described sub-image, after the development of this sub-image finishes, the rotating speed that described developer is supported body is increased to described translational speed greater than described the 4th long-pending rotating speed, after the rotating speed that described developer supports body becomes described the 4th rotating speed, the rotation that makes described developer support body stops, and described the 5th rotating speed is translational speed that described developer supports the described surface in body when rotation supports the described recess that makes progress in week of body less than this developer a spacing, the long-pending rotating speed of the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts becomes maximum.
According to such image formation system as can be known, suitably prevent the deterioration of the image quality of image.
Equally, according to cubic formula of the present invention as can be known, also realize a kind of image forming method, it is characterized in that, comprise: support after the developer of development that picture supports the sub-image of body supports the rotation of body beginning to utilize to support in the developer that this developer supports body, the rotating speed that this developer is supported body is increased to the step of first rotating speed, it is to possess the recess of configuration regularly on the surface that wherein said developer supports body, and the developer that can rotate that is used to support developer supports body, described first rotating speed is translational speed that this developer supports the described surface in body when rotation supports the described recess that makes progress in week of body greater than this developer a spacing, the long-pending rotating speed of the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of the butt parts that are made of rubber elastomer becomes maximum, described butt parts are connected to described developer and support the described surface of body and follow this developer to support the rotation of body and vibrate; After the rotating speed that described developer supports body became described first rotating speed, the speed drop that described developer is supported body was low to moderate described translational speed and becomes step less than described long-pending second rotating speed; Make described developer support the step of developing that body carries out described sub-image with this second rotating speed rotation.
According to such image forming method as can be known, suitably prevent the deterioration of the image quality of image.
Equally, according to the 5th mode of the present invention as can be known, also can realize a kind of image forming method, it is characterized in that, comprise: make described developer support the step of developing that body carries out described sub-image with the rotation of the 5th rotating speed, it is to possess the recess of configuration regularly on the surface that wherein said developer supports body, and the developer that can rotate that is used to support developer supports body, utilization supports the developer that supports body in this developer and supports the development that supports the sub-image of body in picture, described the 5th rotating speed is translational speed that described developer supports the described surface in body when rotation supports the described recess that makes progress in week of body less than this developer a spacing, the long-pending rotating speed of the vibration number of these butt parts the when loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of the butt parts that are made of rubber elastomer becomes maximum, described butt parts are connected to described developer and support the described surface of body and follow this developer to support the rotation of body and vibrate; After the development of sub-image finished, the rotating speed that described developer is supported body was increased to the step of described translational speed greater than described long-pending the 4th rotating speed; After the rotating speed that described developer supports body becomes described the 4th rotating speed, stop the step that described developer supports the rotation of body.
According to such image forming method as can be known, suitably prevent the deterioration of the image quality of image.
About other features of the present invention, accompanying drawing and record by this instructions become clearer and more definite.
Description of drawings
Fig. 1 is the figure that expression constitutes the main composition important document of printer 10.
Fig. 2 is the block scheme of control module of the printer 10 of presentation graphs 1.
Fig. 3 is the concept map of developing apparatus.
Fig. 4 is the sectional view of the main composition key element of expression developing apparatus.
Fig. 5 is the schematic perspective view of developer roll 510.
Fig. 6 is the front schematic view of developer roll 510.
Fig. 7 is the synoptic diagram of the section shape of expression slot part 512.
Fig. 8 is that Fig. 6 is an enlarged diagram.
Fig. 9 is the chart with respect to the storage elastic modulus of temperature etc. of expression rubber section 562.
Figure 10 is the chart with respect to the storage elastic modulus of vibration number (frequency) etc. of the rubber section 562 of expression.
Figure 11 is the loss tangent with respect to vibration number (frequency) (tan δ) chart of expression rubber section 562.
Figure 12 is the chart of the loss tangent (tan δ) of each material of expression.
Figure 13 is the figure of loss tangent tan δ etc. of the rubber section 562 of expression embodiment 1.
Figure 14 is the figure of loss tangent tan δ etc. of the rubber section 562 of expression embodiment 2.
Figure 15 is the figure of loss tangent tan δ etc. of the rubber section 562 of expression embodiment 3.
Figure 16 A～Figure 16 E is the synoptic diagram of variation of the developer roll 510 in the manufacturing process of expression developer roll 510.
Figure 17 is the key diagram that is used to illustrate the rotary processing of developer roll 510.
Figure 18 A～18C is the figure of expression about the variation of the surface configuration of developer roll 510.
Figure 19 is the key diagram that presentation video forms the surface structure of system.
Figure 20 is the block scheme of the structure of expression image formation system shown in Figure 19.
Figure 21 is expression with respect to the chart of the storage elastic modulus of the vibration number (frequency) of rubber section 562 etc.
Figure 22 is the table of expression measurement result.
Figure 23 A is the figure of expression rubber section 562 and its periphery.Figure 23 B is the figure of the rubber section 562 of expression formation that film takes place.
Figure 24 is the table of expression experimental result.
Figure 25 is the storage elastic modulus G ' chart with respect to vibration number (frequency) of the rubber section 562 among the expression embodiment 7～9.
Figure 26 is the table of expression experimental result.
Figure 27 is the synoptic diagram of the change in rotational speed of the developer roll 510 of expression when carrying out the rising control of developer roll 510.
Figure 28 is the synoptic diagram of the change in rotational speed of the developer roll 510 of expression when carrying out the decline control of developer roll 510.
Embodiment
Below, with reference to accompanying drawing, to developing apparatus of the present invention, image processing system, image formation system, and the embodiment of image forming method describe.
The one-piece construction example of-image processing system-
Use Fig. 1 and Fig. 2, will as the laser beam printer of image processing system (below, also be called printer) 10 as an example its summary be described.Fig. 1 is the figure that expression constitutes the main composition key element of printer 10.Fig. 2 is the block scheme of control module of the printer 10 of presentation graphs 1.Also have, in Fig. 1, arrow is represented above-below direction, and for example, sheet feed stacker 92 is disposed at the bottom of printer 10, and fixation unit 90 is disposed at the top of printer 10.
" structure example of printer 10 "
The printer 10 of present embodiment as shown in Figure 1, the sense of rotation of photoreceptor 20 that looks like to support an example of body along the conduct that supports sub-image has: charged elements 30, exposing unit 40, YMCK developing cell 50, primary transfer unit 60, intermediate transfer body 70, cleaning unit 75, and then have secondary transfer printing unit 80, fixation unit 90, constitute to user's notifying operator and the display unit 95 that constitutes by liquid crystal panel, and the control module 100 of the action of these unit of control etc. and control printer.
The state rotation of this YMCK developing cell 50 by being assembled with described four developing apparatuss 51,52,53,54 can make described four developing apparatuss 51,52,53,54 move.Promptly, this YMCK developing cell 50 utilizes four maintaining part 55a, 55b, 55c, 55d, keep described four developing apparatuss 51,52,53,54, described four developing apparatuss 51,52,53,54 can be the center with central shaft 50a, keep the state rotation down of the relative position between them.Also have, opposed with photoreceptor 20 when the image of one page amount forms end, utilize the ink powder that is contained in developing apparatus 51,52,53,54 separately, the sub-image that is formed on the photoreceptor 20 is developed successively.Also have, described four developing apparatuss 51,52,53,54 respectively can be with respect to printer main body 10a (the described maintaining part of YMCK the developing cell 50 specifically) loading and unloading as an example of image processing system main body.In addition, the details to each developing apparatus carries out aftermentioned.
" the action example of printer 10 "
Secondly, the action to the printer 10 of such formation describes.
At first, as if picture signal and the control signal imported from not shown main frame to the master controller 101 of printer 10 via interface (I/F) 112, then utilize based on control, make photoreceptor 20 and 70 rotations of intermediate transfer body from the cell controller 102 of the instruction of this master controller 101.
In the time of photoreceptor 20 rotations, charged successively by charged elements 30 in charged position.The zone by charged of photoreceptor 20 is followed the rotation of photoreceptor 20 and is arrived exposure position, by exposing unit 40, forms in this zone and the first look corresponding sub-image of image information of yellow Y for example.In addition, in the YMCK developing cell 50, the yellow developing apparatus 54 of accommodating yellow (Y) ink powder is positioned at corresponding photoreceptor 20 opposed developing locations.This rotation with photoreceptor 20 of the sub-image that forms on photoreceptor 20 arrives developing location, develops by yellow developing apparatus 54 usefulness Yellow ink powders.Thus, on photoreceptor 20, form the Yellow ink powder picture.The Yellow ink powder that forms on photoreceptor 20 looks like to follow the rotation of photoreceptor 20 and arrives the primary transfer position, by 60 transfer printings of primary transfer unit at intermediate transfer body 70.At this moment, apply the primary transfer voltage of the polarity opposite on the primary transfer unit 60 with the charged polarity (being negative polarity in the present embodiment) of ink powder T.Also have, during this period, photoreceptor 20 contacts with intermediate transfer body 70, and in addition, secondary transfer printing unit 80 leaves from middle transfer article 70.
Above-mentioned processing is passed through second look, the 3rd look, is reached the 4th look, carries out successively by developing apparatus separately, and the ink powder of four looks that will be corresponding with each picture signal is needed on the intermediate transfer body 70 as overlapping.Thus, on intermediate transfer body 70, form full-color ink powder picture.
The full-color ink powder that forms on intermediate transfer body 70 looks like to follow the rotation of intermediate transfer body 70 to arrive the secondary transfer printing position, is needed on the medium by secondary transfer printing unit 80.Also have, medium via paper feeding cylinder 94, turnover roller 96, is delivered to secondary transfer printing unit 80 from sheet feed stacker 92.In addition, when carrying out the transfer printing action, secondary transfer printing unit 80 is pushed by intermediate transfer body 70, and is applied in secondary transfer printing voltage.
The full-color ink powder picture of transfer printing passes through by fixation unit 90 heating heating on medium, and is deposited on medium.Photoreceptor 20 is through behind the primary transfer position on the other hand, and the cleaning plate 76 by the processing unit 75 that is cleaned supports scrapes attached to its lip-deep ink powder T, thereby possesses the charged of the sub-image that is used to form next.The ink powder T that scrapes is recovered in the residual toner recoverer that possesses cleaning unit 75.
The summary of-control module-
Secondly, with reference to Fig. 2, the structure of control module 100 is described.The master controller 101 of control module 100 is electrically connected with main body via interface 112.Possesses the video memory 113 that is used to store from the picture signal of this main frame output.Cell controller 102 is electrically connected with each unit (charged elements 30, exposing unit 40, YMCK developing cell 50,60 cleaning unit 75, primary transfer unit, secondary transfer printing unit 80, fixation unit 90, display unit 95) of apparatus main body, the signal of the sensor that acceptance possesses from them, detect the state of each unit thus, simultaneously, based on signal, control each unit from master controller 101 inputs.
-developing apparatus-
Secondly, use Fig. 3～Fig. 8, the structure example of developing apparatus and the example of moving are described.Fig. 3 is the concept map of developing apparatus.Fig. 4 is the sectional view of the main composition key element of expression developing apparatus.Fig. 5 is the schematic perspective view of developer roll 510.Fig. 6 is the front schematic view of developer roll 510.Fig. 7 is the synoptic diagram of the section shape of expression slot part 512.Fig. 8 is the enlarged diagram of Fig. 6, is the figure of expression slot part 512 and end face 515.Also have, the sectional view shown in Fig. 4 represents to use the section of the face intercepting developing apparatus vertical with long side direction shown in Figure 3.In addition, in Fig. 4, with Fig. 1 in the same manner, represent above-below direction with arrow, for example, the central shaft of developer roll 510 is positioned at the below of the central shaft of photoreceptor 20.In addition, in Fig. 4, yellow developing apparatus 54 is shown is positioned at state with photoreceptor 20 opposed developing locations.In addition, in Fig. 5～Fig. 8, for the ease of understanding figure, the ratio that makes slot part 512 grades is with actual different.
Be provided with black developing device 51, the magenta developing apparatus 52 of saying flourish magenta (M) ink powder of accommodating black (K) ink powder at YMCK developing cell 50, accommodate the cyan developing apparatus 53 of cyan (C) ink powder and accommodate the yellow developing apparatus 54 of yellow (Y) ink powder, but the structure of each developing apparatus is identical, therefore, below, yellow developing apparatus 54 is described.
" configuration example of developing apparatus "
Yellow developing apparatus 54 has: as developer support body developer roll 510, last slice 520, ink powder resettlement section 530, housing 540, as the ink powder donor rollers 550 that strips an example of parts, as the limiting plate 560 of an example of butt parts, eyelid retractor 526 etc.
And then slot part 512 possesses bottom surface 514 and side 513, and in the present embodiment, the angle of inclination of side 513 is about 45 degree (with reference to Fig. 7).
Two kinds of spiral fashion slot parts 512 of Gou Chenging are configured in the surface of the central portion 510a of developer roll 510 regularly as Fig. 5, Fig. 6 and shown in Figure 8 like this, are cross one another lattice shape.Thereby, the end face 515 of the cubic besieged prismatic (positive dirction) of a plurality of slot parts 512 of formation on described central portion 510a.
As mentioned above, in the present embodiment, the size of the size of the long side direction of the first slot part 512a and the described acute angle that is axially become and the long side direction of the second slot part 512b and the described acute angle that is axially become is about 45 degree, therefore, have foursquare flat shape at end face 515, and the diagonal line (the opposing party) in two diagonal line having of this end face 515 is along circumferential (axially) of developer roll 510.Also have, the length on one side of foursquare end face 515 is about 38 μ m as shown in Figure 7.In addition, the circumferential spacing of slot part 512 (the width L1 shown in Fig. 8) is about 113 μ m.
And then developer roll 510 can be the center rotation with the central shaft, as shown in Figure 4, and in the direction opposite (in Fig. 4, being counter clockwise direction) rotation with the sense of rotation (being clockwise direction in Fig. 4) of photoreceptor 20.Also have, in the present embodiment, when carrying out the development of described sub-image, the translational speed V on the surface of the developer roll 510 during developer roll 510 rotations (, the linear velocity of the lip-deep developer roll 510 of developer roll 510) and be about 320mm/s.In addition, when carrying out the development of described sub-image, the translational speed on the surface of the photoreceptor 20 during photoreceptor 20 rotations (, the linear velocity of the lip-deep photoreceptor 20 of photoreceptor 20) and be about 200mm/s, the circumferential speed with respect to photoreceptor 20 of developer roll 510 is about 1.6.
In addition, under yellow developing apparatus 54 and photoreceptor 20 opposed states, between developer roll 510 and photoreceptor 20, there is the space.That is, yellow developing apparatus 54 will be formed at image development on the photoreceptor 20 with contactless state.Also have, in the printer 10 in the present embodiment, use the great-jump-forward visualization way, during image development on will being formed at photoreceptor 20, between developer roll 510 and photoreceptor 20, form alternately electric field.In addition, be provided with the development bias voltage applying unit 121 (Fig. 2) that is used for applying development bias voltage (is the overlapping development state of DC voltage and alternating voltage in present embodiment) at printer 10 to the developer roll 510 of the development of carrying out sub-image.Also have,, form alternately electric field in described space by applying the development bias voltage to developer roll 510.Replace electric field by this, the ink powder T on the developer roll 510 moves on photoreceptor 20, and its result will be at the image development on the photoreceptor 20.
Ink powder donor rollers 550 is arranged at the described first ink powder resettlement section 530a, the ink powder T that is contained in this first ink powder resettlement section 530a is supplied with to developer roll 510, and the ink powder T that will residue in developer roll 510 after will developing strips from developer roll 510.This ink powder donor rollers 550 is rewritten into by Ju ammonia ester Pao Mo Den, under the state of elastic deformation with developer roll 510 butts (contacting) with the surface of developer roll 510.Ink powder donor rollers 550 is disposed at the bottom of the first ink powder resettlement section 530a, and the ink powder T that is contained in the first ink powder resettlement section 530a utilizes ink powder donor rollers 550 to be supplied in developer roll 510 in the bottom of this first ink powder resettlement section 530a.Ink powder donor rollers 550 can be the center rotation with the central shaft, and this central shaft is positioned at the below of the rotation center of developer roll 510.In addition, ink powder donor rollers 550 is to the direction opposite with the sense of rotation (being counterclockwise in Fig. 4) of developer roll 510 (being clockwise direction among Fig. 4) rotation.
Limiting plate 560 between an axial end to the other end of developer roll 510 with the surperficial butt of developer roll 510, limit and support in the bed thickness of the ink powder T of developer roll 510, in addition, give electric charge to the ink powder T that supports in developer roll 510.This limiting plate 560 has rubber section 562 and rubber portion 564 as the butt parts as shown in Figure 4.
Rubber section 562 is the surperficial butts with developer roll 510, and limits the bed thickness limiting part that supports in the bed thickness of the ink powder T of developer roll 510.Rubber section 562 is configured to, and its long side direction is along developer roll 510 axial (Fig. 6), and an end of its short side direction (the front end 560a of limiting plate 560) is towards the sense of rotation upstream side (with reference to Fig. 4) of developer roll 510.That is the so-called counter (カ ウ Application タ) of rubber section 562 butts.In addition, a described end of rubber section 562 (the front end 560a of limiting plate 560) does not contact with developer roll 510, and the abutting part 562a with surperficial butt developer roll 510 rubber section 562 leaves from described front end 560a on described short side direction.That is, rubber section 562 is not to use the edge butt with developer roll 510, but uses the middle part butt, by making plane and developer roll 510 butts with rubber section 562, limits described bed thickness.Also have, rubber section 562 is belows of the central shaft of developer roll 510 with the butt position of developer roll 510 butts, and is the below of the central shaft of ink powder donor rollers 550.In addition, this rubber section 562 its axially on developer roll 510 butts, thereby also performance prevent ink powder T from the ink powder resettlement section 530 functions of revealing.
But above-mentioned rubber section 562 comprises rubber elastomer.At this, rubber elastomer is defined as the elastic body that possesses caoutchouc elasticity.This rubber elastomer is categorized as rubber and thermoplastic elastomer, described rubber be the elastic body that solidifies from the state that flows by heating (promptly, the elastic body that shows Thermocurable), thermoplastic elastomer is the elastic body (that is, showing the thermoplastic elastomer body) that becomes liquidation by heating from the state that solidifies.In addition, the described rubber that uses as rubber section 562 for example is chemglaze.Also have, the rubber section 562 in the present embodiment comprises thermoplastic elastomer from utilizing the easy processing view of its thermoplasticity etc.
" the action example of developing apparatus "
In the yellow developing apparatus 54 that constitutes like this, the ink powder T that ink powder donor rollers 550 will be contained in ink powder resettlement section 530 is supplied in the developer roll 510.The ink powder T that supplies with to developer roll 510 follows the rotation of developer roll 510, arrives the butt position of limiting plate 560, by this butt position the time, limits bed thickness, and, give negative electric charge (charged be negative polarity).Limit bed thickness, and be endowed the further rotation of ink powder T by developer roll 510 on the developer roll 510 of negative charge, be delivered to the opposed locations (developing location) with photoreceptor 20 opposed photoreceptors 20, be supplied in the development of the sub-image that on photoreceptor 20, forms in this opposed locations.Passed through ink powder T on the developer roll 510 of developing location by the rotation of developer roll 510 through last slice 520, and be not recovered in the developing apparatus by under last slice 520 situations about scraping.And then the ink powder T that residues in developer roll 510 can the described ink powder donor rollers 550 in Ta Ou various countries peel off.
-about the rerum natura of rubber section 562 and the relation of temperature-
The modulus of the dynamic viscoelastic of rubber section 562 materials such as grade that are made of rubber elastomer as expression has storage elastic modulus and loss elastic modulus.The storage elastic modulus is represented the elastic property of material, and loss elastic modulus is represented the adhesion properties of material.The size of these storage elastic modulus or loss elastic modulus changes according to the temperature of material.Also have, according to the change of the size of the storage elastic modulus (loss elastic modulus) of material, for example, this material shows rubbery state character (rerum natura) or glassy state character.Specifically, storing under the big situation of elastic modulus or loss elastic modulus, this material shows glassy state character, is storing under the little situation of elastic modulus or loss elastic modulus, and this material shows rubbery state character.
Use Fig. 9 specifies.Fig. 9 is the chart with respect to the storage elastic modulus of temperature etc. of expression rubber section 562.Storage elastic modulus of the rubber section 562 of present embodiment shown in Fig. 9 (being G ' among Fig. 9) and loss elastic modulus (be G among Fig. 9 ").As shown in the figure chart, the size of storage elastic modulus and loss elastic modulus shows little value under the low volume situation of the temperature of rubber section 562.Also have, as mentioned above, under the big situation of storage elastic modulus (loss elastic modulus), show the character of glassy state.Under the low situation of the temperature of rubber section 562 (for example ,-40 ℃), this rubber section 562 shows the character of glassy state.On the other hand, under the little situation of storage elastic modulus (loss elastic modulus), show the character of rubbery state, therefore, under the high situation of the temperature of rubber section 562 (for example, 40 ℃), this rubber section 562 shows the character of rubbery state.
In addition, loss elastic modulus G has been shown among Fig. 9 " divided by the loss tangent of storing elastic modulus G ' (being tan δ among Fig. 9).Becoming near maximum peak temperature T (be-35 ℃ in Fig. 9) with this loss tangent is the border, the change of properties of rubber section 562.That is, under the situation of the temperature lower than peak temperature T, rubber section 562 shows the character of glassy state, and under the situation of the temperature higher than this peak temperature T, rubber section 562 shows the character of rubbery state.Also have, above-mentioned peak temperature T also is called as glass temperature.
Also have, soil surface shown in Figure 9 is obtained by following mensuration.As the mensuration machine of this mensuration, use TA instrument system ARES, the anchor clamps during as mensuration, the anchor clamps of use torque type.Also have, as mode determination, select the temperature dependency mode determination, the temperature range of mensuration is-50 ℃～60 ℃ (Fig. 9).Also having, is 5 ℃/minute from-50 ℃ to 60 ℃ programming rates.By measuring, obtain storage elastic modulus G ', the loss elastic modulus G of rubber section 562 with such condition determination ", and loss tangent (tan δ).
Yet, in the printer 10 in the present embodiment, be set with the serviceability temperature zone, specifically, this serviceability temperature zone is 10 ℃～35 ℃.Also have, the temperature of rubber section 562 that is assemblied in the developing apparatus 51,52,53,54 of printer main body 10a is the temperature than this serviceability temperature zone slightly high (about about 10 ℃).Therefore, rubber section 562 is used under than the high temperature of above-mentioned peak temperature T (approximately-35 ℃), therefore since with the relation of temperature, show rubbery state character.
Like this, with the relation of temperature in, rubber section 562 shows the rubbery state character, therefore as can be known, using under the situation of rubber section 562 usually, requires rubber section 562 to use as rubbery state character.
-about the rerum natura of rubber section 562 and the relation of vibration number (frequency)-
As mentioned above, the surperficial butt of rubber section 562 and developer roll 510, therefore, this developer roll 510 is when it rotates, with these rubber section 562 sliding frictions.Therefore, rubber section 562 is followed the rotation of developer roll 510 and is vibrated.Especially, be formed with slot part 512 on the surface of developer roll 510, therefore, rubber section 562 is followed the rotation of this developer roll 510 easily and is vibrated.Also have, what know is, according to the size of the vibration number of rubber section 562, the change of properties of this rubber section 562.That is, know the size of rubber section 562, show the character of rubbery state or the character of glassy state according to vibration number.About described aspect, be described as follows.
Figure 10 is the chart with respect to the storage elastic modulus of vibration number (frequency) of expression rubber section 562.In the following, for convenience of explanation, replace vibration number and frequency of utilization.In addition, the scale of the transverse axis of the chart shown in Figure 10 is logarithm (Figure 11 described later is also identical with Figure 12).With Fig. 9 the storage elastic modulus (among Figure 10 for G ') of rubber section 562 and loss elastic modulus (be G among Figure 10 ") are shown in the same manner among Figure 10.As shown in chart, the size of storage elastic modulus and loss elastic modulus is represented little value under the little situation of the frequency of rubber section 562, shows big value under the big situation of the frequency of rubber section 562.Therefore, under the little situation of the frequency of rubber section 562, rubber section 562 is the character of rubbery state, and under the big situation of the frequency of rubber section 562, rubber section 562 is the character of glassy state.
In addition, in Figure 10 with Fig. 9 in the same manner, show loss elastic modulus G " divided by the storage elastic modulus G ' loss tangent (the tan δ among Figure 10).Becoming maximum peak frequency f (is about 100000Hz at Figure 10) with this loss tangent is the border, the change of properties of rubber section 562.That is, under the situation of the frequency littler than peak frequency f, rubber section 562 shows the character of rubbery state, and under the situation of the frequency bigger than this peak frequency f, rubber section 562 shows the character of glassy state.
Therefore,, promptly follow the rotation of developer roll 510 and requirement that being made as rubbery state character of rubber section 562 used, need be made as the vibration number (frequency) of rubber section 562 littler than peak frequency f in order to satisfy above-mentioned requirements.
Also have, the chart shown in Figure 10 is obtained by the mensuration identical with chart shown in Figure 9.That is,, use ARES same as described above,, select frequency interdependence mode determination as mode determination as the mensuration machine.Also have, the scope of the frequency that applies to the rubber section 562 of determination object is 10-4～1014 (Figure 10), and the deflection that applies of frequency is 0.1% (constant).In addition, the temperature maintenance of the rubber section 562 during mensuration is at 20 ℃.Also have, in Figure 11 described later and the chart shown in Figure 12, also utilize identical mensuration and obtain.
" about the validity of the developing apparatus in the present embodiment 51,52,53,54 "
In the developing apparatus 51,52,53,54 in the present embodiment, the vibration number of this rubber section 562 during loss tangent that the value that the translational speed on the surface of this developer roll 510 during developer roll 510 rotation obtains divided by the circumferential spacing of this developer roll 510 of slot part 512 obtains divided by the storage elastic modulus less than, the loss elastic modulus of rubber section 562 (V/L1＜f).Thus, make the rubber section 562 of the whirling vibration of following developer roll 510 be fit to be used in the character of rubbery state.
Below, use Fig. 8, this project is described in detail.As mentioned above, be provided with the two kind spiral fashion slot parts 512 different with respect to circumferential angle of inclination on the surface of the developer roll 510 of present embodiment, this this two kinds of spiral fashion slot parts 512 are cross one another grid character.In addition, developer roll 510 has the square end face 515 that is surrounded by described two kinds of spiral fashion slot parts 512, and an edge in two diagonal line that foursquare end face has is (Fig. 8) circumferentially.Also have, in such developer roll 510, the circumferential spacing of slot part 512 (width L1 shown in Figure 8) is about 113 μ m.
In addition, as mentioned above, the translational speed V on the surface of the developer roll 510 during developer roll 510 rotations is 320mm/s.Thereby the value V/L1 that the translational speed V on the surface of the developer roll 510 during developer roll 510 rotations obtains divided by described spacing L1 is about 2831Hz.Also have, as shown in figure 10, the peak frequency f of this rubber section 562 of the loss tangent of rubber section 562 (tan δ) when becoming maximum for about 100000Hz, therefore, in the present embodiment, satisfies V/L1＜f in example shown in Figure 10.
Secondly, if satisfy the relation of such V/L1＜f, illustrate then when developer roll 510 rotations, why rubber section 562 is used as the character of rubbery state.As mentioned above, the surperficial butt of rubber section 562 and developer roll 510, but the slot part 512 that disposes on this formation rule ground, surface.Therefore, when developer roll 510 rotations, the slot part 512 and rubber section 562 sliding frictions of configuration regularly, this rubber section 562 is with constant vibration number vibration thus.Also have, the size of the vibration number of rubber section 562 depends on the translational speed V on the surface of spacing L1 that the week of slot part 512 makes progress and this developer roll 510.That is the vibration number of the rubber section 562 when, developer roll 510 rotates becomes V/L1.Therefore, (V/L1＜f), this rubber section 562 is just used the character as rubbery state as long as this V/L1 is less than the peak frequency f of rubber section 562.
Thereby, in the developing apparatus 51,52,53,54 of present embodiment, by satisfying the relation of V/L1＜f, the peak frequency f (about 100000Hz) that the vibration number of the rubber section 562 of following the rotation of developer roll 510 and vibrating becomes than this rubber section 562 is little, therefore, during developer roll 510 rotations, rubber section 562 is used the character as rubbery state.Its result, rubber section 562 suitable performance qualifications support in the function of the bed thickness of the ink powder of developer roll 510.
＜about the relation of the temperature of peak frequency f and rubber section 562 〉
As mentioned above, be set with serviceability temperature zone (promptly, 10 ℃～35 ℃) at printer 10, the temperature of rubber section 562 is also according to the serviceability temperature of printer 10 and difference.Also have, the peak frequency f of the rubber section 562 when the loss tangent tan δ of this rubber section 562 becomes maximum is according to the size of the temperature of rubber section 562 and difference.About this point, use Figure 11 to describe.
Figure 11 is the chart with respect to the loss tangent tan δ of vibration number (frequency) of expression rubber section 562.But, the loss tangent (tan δ) of this rubber section 562 the when temperature that rubber section 562 has been shown among Figure 10 is 20 ℃, the loss tangent tan δ of this rubber section 562 the when temperature that figure 11 illustrates rubber section 562 is 10 ℃, 20 ℃, 30 ℃.The chart of observing Figure 11 as can be known, the temperature of rubber section 562 is high more, loss tangent tan δ is in big more tendency.The peak frequency f of the rubber section 562 when therefore, the loss tangent tan δ of rubber section 562 becomes maximum also is: the temperature of rubber section 562 big more (height) and big more.Also have, above-mentioned value V/L1 is about 2831Hz, and therefore, the peak frequency under 10 ℃, 20 ℃, 30 ℃ is also little.
Thereby, in the above-described embodiment, under all temperature of the serviceability temperature zone of printer 10 (10 ℃～35 ℃), satisfy the relation of described V/L1＜f, therefore, developer roll 510 follows the image of printer 10 to form action and during rotation, and this rubber section 562 is necessarily with the use of the character of rubbery state.
＜about the relation of the material of peak frequency f and rubber section 562 〉
Above-mentioned rubber section 562 is DIC system T8175 (embodiment).But, also can use beyond the T8175 as rubber section 562, for example, also can use Japan rubber system T7350 (embodiment 2) or be with rubber system SS2 (embodiment 3).Also have, the material of these three materials is as described below.That is, the T8175 of embodiment 1 is a thermoplastic elastomer, and its hardness (Shore A) is 78.The T7350 of embodiment 2 is a chemglaze, and its hardness (JISA) is 75.The SS2 of embodiment 3 is a chemglaze, and its hardness (JISA) is 78.
Figure 12 is the chart of the loss tangent tan δ of above-mentioned three materials of expression.In order to observe the chart of Figure 12 easily, the peak frequency f of the T8175 of embodiment 1 is about 100000 (Hz), and the peak frequency f of the T7350 of embodiment 2 is about 5000 (Hz), and the peak frequency f of the SS2 of embodiment 3 is about 4000 (Hz).Therefore, under the situation that above-mentioned three materials are used as rubber section 562, satisfy described V/L1＜f, therefore, use by rubber section 562 character with rubbery state when developer roll 510 rotates that these three materials constitute.Also have, in embodiment, the T8175 of the embodiment 1 of peak frequency f maximum in three materials is used as rubber section 562.
Also have, figure 12 illustrates the loss tangent tan δ of the North Star industry system 201759 that can be used in cleaning plate 76.The peak frequency f of this material is about 300 (Hz), under the situation that this material is used as rubber section 652, does not satisfy the relation of V/L1＜f, and this rubber section 652 may be used with the character of glassy state when developer roll 510 rotations.
Also have, the chart of the loss tangent of the T8175 of the embodiment 1 shown in Figure 12 is identical with the chart of the loss tangent of Figure 10, and this T8175 when measuring T8175 is 20 ℃.Also have, their temperature of measuring the SS2 of T7350, embodiment 3 of embodiment 2 and comparative example 1 201759 o'clock also is 20 ℃.
＜about the circumferential spacing L1 of slot part 512 and the translational speed V of developer roll 510 〉
In the above-described embodiment, the circumferential spacing L1 of slot part 512 is about 113 μ m, and the translational speed V on the surface of developer roll 510 is 320mm/s, but is not limited to these.As long as described spacing L1 and translational speed V satisfy the relation of V/L1＜f, just can be arbitrary value.But the size of preferred distance L1 is about 85 μ m～about 142 μ m, and translational speed V is 100mm/s～480mm/s.
-be used for the action of developing apparatus keep the countermeasure of the relation of V/L1＜f-
As mentioned above, the translational speed V of developer roll 510 is 320mm/s, and the spacing L1 of slot part 512 is about 113 μ m, and the value V/L1 that described translational speed V obtains divided by described spacing L1 (about 2831Hz) is littler than the peak frequency f of rubber section 562.
But in the action of developing apparatus, the size of described value V/L1 changes sometimes.For example, be subjected to external action at developing apparatus 51,52,53,54 etc., and under the situation of translational speed V greater than 320mm/s of developer roll 510 in the rotation, described value V/L1 also becomes big 9 in other words, follows the vibration number (frequency) of rubber section 562 of the whirling vibration of developer roll 510 also to become big).Also have, the peak frequency f of supposing rubber section 562 is under the situation near the size of 2831Hz (translational speed V is the frequency under the situation of 320mm/s), become during the big or small earthquake of described V/L1 than this peak frequency f big (, in the action of developing apparatus, do not keep the relation of V/L1＜f, become the relation of V/L1＞f sometimes).Also have, under the value V/L1 situation bigger, as mentioned above, the problem that rubber section 562 shows the character of glassy state takes place than peak frequency f.
Therefore, in order to eliminate described problem, even also keep the countermeasure of the relation of V/L1＜f as the changes such as action translational speed V that are used for developing apparatus, in the present embodiment, the value V/L1 that the translational speed V of developer roll 510 obtains divided by the spacing L1 of slot part 512 such as described frequency down (below, also be called frequency f 2) little (V/L1＜f2), that is: this frequency is to become the little frequency of peaked described peak frequency f at loss tangent (tan δ), and when this frequency, described loss tangent become described peaked half.
Use Figure 13 that this project is described.Figure 13 is the figure of loss tangent tan δ etc. of the rubber section 562 (T8175) of the described embodiment 1 of expression, has appended described frequency f 2 etc. in chart shown in Figure 10.As shown in figure 13, the maximal value of loss tangent tan δ is about 0.58, and the frequency (peak frequency f) of this moment is about 100000Hz.Therefore, described peaked half be 0.29, this moment described frequency f 2 are about 1000Hz., set up for the relation that makes V/L1＜f2 under the situation of about 1000Hz in frequency f 2 in the marine site, and for example, regulation translational speed V is 100mm/s, and spacing L1 is defined as 125 μ m.In this case, value V/L1 is 800Hz, and the relation of V/L1＜f is set up.
Like this, under the situation that the relation of V/L1＜f2 is set up, for example, even follow the change of the size of described translational speed V, the big or small change of described value V/L1, frequency f 2 (about 1000Hz) also is 1/100 times a size of peak frequency f (about 100000Hz), and therefore, this V/L1 is difficult to become bigger than described peak frequency f.Its result, in the action of developing apparatus (in the rotation of developer roll 510) keep the relation of V/L1＜f, thereby when developer roll 510 rotation, rubber section 562 is suitably used with the character of rubbery state.
Also have, in above-mentioned, described value V/L1 is less than frequency f 2, but loss tangent also can less than the frequency of the intermediate value (about 0.28) that becomes described maximal value (about 0.58) and minimum value (being about 0.02 in Figure 13).But in the present embodiment, described minimum value is the size near 0, and therefore, described intermediate value (about 0.28) and described peaked half value (0.29) are roughly the same.Therefore, the frequency also roughly the same with described frequency f 2 (rubber section 562 of aftermentioned embodiment 2 and embodiment 3 is also identical) during intermediate value.
Secondly, use Figure 14 and Figure 15, the relation of rubber section 562 (T7350) among the described embodiment 2 and the V/L1＜f2 in the rubber section 562 (SS2) among the embodiment 3 is described.Figure 14 is the figure of loss tangent tan δ etc. of the rubber section 562 of expression embodiment 2, and Figure 15 is the figure of loss tangent tan δ etc. of the rubber section 562 of expression embodiment 3.
In the rubber section 562 of the T7350 of embodiment 2, as shown in figure 14, the maximal value of loss tangent tan δ is about 0.76, and the peak frequency f is about 5000Hz.Therefore, described peaked half be 0.38, frequency f 2 is about 100Hz.Thereby, under the situation of the rubber section 562 of T7350 so that value V/L1 becomes mode regulation translational speed V and the spacing L1 littler than 100Hz, thus in the action of developing apparatus with this rubber section 562 of lasting use of the character of rubbery state.
In the rubber section 562 of embodiment 3, as shown in figure 15, the maximal value of loss tangent tan δ is 0.60, and the peak frequency f is about 4000Hz.Therefore, described peaked half be 0.30, frequency f 2 is about 60Hz.Thereby under the situation of the rubber section 562 of SS2, so that value V/L1 becomes mode regulation translational speed V and the spacing L1 littler than 60Hz, the character with rubbery state continues to use this rubber section 562 in the action of developing apparatus thus.
Yet, as Figure 13～shown in Figure 15, than the little frequency of frequency f 2 time, to compare during with frequency between frequency f 2 and the peak frequency f, the change of the storage elastic modulus G ' of rubber section 562 is little.At this, as mentioned above, the storage elastic modulus G ' is represented the elastic property of material, according to the size of this storage elastic modulus G ', can know the situation that the extent of vibration of this rubber section 562 also changes.Also have, under the equable situation of the storage elastic modulus G ' of rubber section 562, the degree of the vibration of rubber section 562 is stable, therefore, this rubber section 562 also stable with butt developer roll 510, its result, rubber section 562 suitable performance qualifications support in the function (ink powder being given the function of electric charge) of the bed thickness of the ink powder of developer roll 510.
In addition, show loss elastic modulus G in the same manner with Fig. 9 among Figure 21 " divided by the loss tangent (the tan δ among Figure 21) of storing elastic modulus G '.Becoming maximum peak frequency f (being about 20000Hz) with this loss tangent in Figure 21 is the border, the character change of rubber section 562.That is, under the situation of the frequency littler than 20000Hz, rubber section 562 shows the character of rubbery state, and under the situation of the frequency bigger than 20000Hz, rubber section 562 shows the character of glassy state.
Therefore,, promptly follow the rotation of developer roll 510 and requirement that being made as rubbery state character of rubber section 562 used, need be made as the vibration number (frequency) of rubber section 562 littler than peak frequency f in order to satisfy above-mentioned requirements.
Also have, the chart shown in Figure 21 is obtained by the mensuration identical with chart shown in Figure 9.That is,, use ARES same as described above,, select frequency interdependence mode determination as mode determination as the mensuration machine.Also have, the scope of the frequency that applies to the rubber section 562 of determination object is 10-4～1014 (Figure 21), and the deflection that applies of frequency is 0.1% (constant).In addition, the temperature maintenance of the rubber section 562 during mensuration is at 20 ℃.
" countermeasure that the rubber section 562 that is used for vibrating is used with the character of rubbery state "
Next, the concrete countermeasure that silicon will follow the rubber section 562 of the whirling vibration of developer roll 510 to use with the character of rubbery state describes.As this countermeasure, in the present embodiment, the translational speed on the surface of this developer roll 510 the during developer roll 510 rotation value that obtains divided by the spacing that makes progress in week of this developer roll 510 of slot part 512 is less than the vibration number of this rubber section 562 the when loss tangent that the loss elastic modulus of rubber section 562 obtains divided by the storage elastic modulus becomes maximum.
Below, use Fig. 8, this project is described in detail.As mentioned above, be provided with the two kind spiral fashion slot parts 512 different with respect to circumferential angle of inclination on the surface of the developer roll 510 of present embodiment, this this two kinds of spiral fashion slot parts 512 are cross one another grid character.In addition, developer roll 510 has the square end face 515 that is surrounded by described two kinds of spiral fashion slot parts 512, and an edge in two diagonal line that foursquare end face has is (Fig. 8) circumferentially.Also have, in such developer roll 510, the circumferential spacing of slot part 512 (width L1 shown in Figure 8) is about 113 μ m.
In addition, as mentioned above, the translational speed V on the surface of the developer roll 510 during developer roll 510 rotations is 320mm/s.Thereby the value V/L1 that the translational speed V on the surface of the developer roll 510 during developer roll 510 rotations obtains divided by described spacing L1 is about 2831Hz.Also have, as shown in figure 21, the peak frequency f of this rubber section 562 of the loss tangent of rubber section 562 (tan δ) when becoming maximum for about 20000Hz, therefore, in the present embodiment, satisfies V/L1＜f in example shown in Figure 21.
Secondly, if satisfy the relation of such V/L1＜f, illustrate then when developer roll 510 rotations, why rubber section 562 is used as the character of rubbery state.As mentioned above, the surperficial butt of rubber section 562 and developer roll 510, but the slot part 512 that disposes on this formation rule ground, surface.Therefore, when developer roll 510 rotations, the slot part 512 and rubber section 562 sliding frictions of configuration regularly, this rubber section 562 is with constant vibration number vibration thus.Also have, the size of the vibration number of rubber section 562 depends on the translational speed V on the surface of spacing L1 that the week of slot part 512 makes progress and this developer roll 510.That is the vibration number of the rubber section 562 when, developer roll 510 rotates becomes V/L1.Therefore, (V/L1＜f), this rubber section 562 is just used the character as rubbery state as long as this V/L1 is less than the peak frequency f of rubber section 562.
Thereby, in the developing apparatus 51,52,53,54 of present embodiment, by satisfying the relation of V/L1＜f, the peak frequency f (about 20000Hz) that the vibration number of the rubber section 562 of following the rotation of developer roll 510 and vibrating becomes than this rubber section 562 is little, therefore, during developer roll 510 rotations, rubber section 562 is used the character as rubbery state.Its result, rubber section 562 suitable performance qualifications support in the function of the bed thickness of the ink powder of developer roll 510.
-about the extraordinary noise of the vibration of following rubber section 562-
By satisfying the relation of V/L1＜f, to use rubber section 562 with the character of rubbery state, but using with the character of rubbery state under the situation of this rubber section 562, rubber section 562 is followed the rotation of developer roll 510 and is vibrated, and sends extraordinary noise sometimes.The sound of cutting air that the rubber section 562 of vibration caused when this extraordinary noise was developer roll 510 rotation specifically (air vibration and produce sound).
Also have, the described dynamic viscoelastic of described extraordinary noise, rubber section 562 (elastic property and adhesion properties) has certain relation.That is, under the big situation of the influence of the elastic property in two character (in other words, under the big situation of the influence of storage elastic modulus G '), the amplitude during rubber section 562 vibrations becomes big, therefore, is easy to generate extraordinary noise (cutting the sound of air).Also have, suppose to produce under the situation of such extraordinary noise, allow misunderstanding printer 10 such as user that appropriate situation has taken place sometimes.
" countermeasure that suppresses the generation of extraordinary noise "
Secondly, to the countermeasure of the generation that is used to suppress above-mentioned extraordinary noise and describe.As this countermeasure, the value V/L1 that the translational speed V of developer roll 510 obtains divided by the spacing L1 of slot part 512 (vibration number of the rubber section 562 when this value V/L1 becomes developer roll 510 rotations) becomes than loss elastic modulus G with making the storage elastic modulus G ' " little frequency (vibration number) is identical.
Use Figure 21, this project is described.Described value V/L1 is littler than peak frequency f (20000Hz).Also have, shown in the chart of Figure 21, the frequency field littler than peak frequency f comprises: the storage elastic modulus G ' is than loss elastic modulus G " big frequency field and storage elastic modulus G ' be than loss elastic modulus G " little frequency field.Specifically, the chart and the loss elastic modulus G of storage elastic modulus G ' " the frequency f 1 that intersects of chart be about 760Hz; in the zone of 760Hz～20000Hz; store elastic modulus G ' less than loss elastic modulus G ", in the zone below 760Hz, the storage elastic modulus G ' is greater than loss elastic modulus G ".Also have, described value V/L1 (vibration number of rubber section 562) be about 2831Hz, therefore, when rubber section 562 is vibrated, has and stores elastic modulus G ' less than loss elastic modulus G " relation.
Like this, in the storage elastic modulus G ' less than loss elastic modulus G " situation under, the influence of adhesion properties becomes than the influence of elastic property big (mastery).Also have, by suppressing the elastic property of rubber section 562, therefore the amplitude when suppressing rubber section 562 vibrations, can suppress the generation of extraordinary noise (sound of wind cutting).
Secondly, use measurement result shown in Figure 22, the concrete effect of this countermeasure is described.Figure 22 is the table of expression measurement result, the relation of the size of the value of showing V/L1 and extraordinary noise.This mensuration method is as described below carried out.As analyzer, use Lyons (strain) system NA-28 (noisemeter).Also have, this analyzer is arranged at from the position of the about 10mm of printer 10 (specifically, near the externally mounted part branch of the developer roll 510 of printer 10) distance the size (volume) of the extraordinary noise in the rotation of mensuration developer roll 510.This volume is by dB (decibel) expression, and this value is big more, the big more expression noise of extraordinary noise big more (allowing the people feel " noise is big ").Also have, in this mensuration, the volume of the extraordinary noise in three situations (embodiment 4, embodiment 5, comparative example 2) of the size of the spacing L1 of the translational speed V1 that changed developer roll 510 and slot part 512 is measured.
Shown in present embodiment, translational speed V is 320mm/s, and spacing L1 is under the situation of 113 μ m, promptly be worth V/L1 (vibration number of rubber section 562) and be (embodiment 4) under the situation of 2831Hz, the storage elastic modulus G ' is than loss elastic modulus G " little (with reference to Figure 21), the volume of extraordinary noise is 27dB.In addition, as embodiment 5, be 100mm/s, and spacing L1 is (value V/L1 is 1176Hz) under the situation of 85 μ m at translational speed V, the storage elastic modulus G ' is also less than loss elastic modulus G ", the volume of extraordinary noise is 31dB.On the other hand, as a comparative example 2, be 50mm/s at translational speed V, and spacing L1 is (value V/L1 is 442Hz) under the situation of 141 μ m, the storage elastic modulus G ' is greater than loss elastic modulus G ", the volume of extraordinary noise is 69dB.
From this measurement result as can be known, when rubber section 562 vibration, become the storage elastic modulus G ' less than loss elastic modulus G " the volume of situation (embodiment 4 and embodiment 5) extraordinary noise down of relation become: become during rubber section 562 vibrations and store elastic modulus G ' greater than loss elastic modulus G " the situation (comparative example 2) of relation under half of volume of extraordinary noise below.Therefore, the vibration number of rubber section 562 is for making the storage elastic modulus G ' less than loss elastic modulus G " the situation of vibration number of relation under, suppress the generation of the extraordinary noise of rubber section 562.
From as can be known above-mentioned, in the yellow printer 1 of present embodiment, by making described value V/L1 be: in the vibration number of the vibration number (peak frequency f) of the rubber section 562 when becoming maximum with loss tangent tan δ less than rubber section 562, make the storage elastic modulus G ' less than loss elastic modulus G " the identical size of vibration number; thereby can be when developer roll 510 rotation; the character with rubbery state is suitably used rubber section 562, and can suppress the generation of the extraordinary noise that the vibration of rubber section 562 follows.
-the temperature of following rubber section 562 rises and the film that produces-
By satisfying the relation of V/L1＜f, character with rubbery state is used rubber section 562, but using with the character of rubbery state under the situation of this rubber section 562, developer roll 510 in rotation with rubber section 562 sliding frictions, cause the temperature of rubber section 562 to rise sometimes thus.Especially, under developer roll 510 develops the situation of (formation image) continuously, developer roll 510 and rubber section 562 long-time sliding frictions, therefore, the temperature of rubber section 562 rises easily.
Also have, the temperature of rubber section 562 rises and there is relation in the described dynamic viscoelastic (elastic property and adhesion properties) of rubber section 562.That is, under the situation that the influence of the adhesion properties in two character is big (loss elastic modulus G in other words, " the big situation of influence); the strand that constitutes rubber section 562 vibrates easily, therefore, is easy to generate heat; its result, and the temperature of rubber section 562 rises easily.
Yet rubber has adhesiveness (stickability) usually, therefore, uses under the situation of rubber section 562 with the character of rubbery state, and ink powder is bonded to the surface of rubber section 562 sometimes.The marine site if the temperature of rubber section 562 rises (in other words, loss elastic modulus G under the situation that " influence is big), then promotes the set of ink powder, on the surface of rubber section 562 film (piece of the ink powder of set) takes place easily.Also have, if this film takes place, the charged of ink powder that then utilizes rubber section 562 to carry out becomes imappropriate, and image quality is variation sometimes.
" following the occurring mode of the film that the temperature of rubber section 562 rises "
Secondly, use the occurring mode of Figure 23 A and Figure 23 B explanation film.Figure 23 A is the figure of expression rubber section 562 and its periphery.Figure 23 B is illustrated in the bad guys that the rubber section 562 of film takes place on the surface.
Also have, follow the rotation of developer roll 510, under the situation that the temperature of rubber section 562 rises, promote the set of ink powder.Film (representing with oblique line in Figure 23) shown in Figure 23 B, takes place at abutting part 562a (in Figure 23 B for dotting abutting part 562a) between the described end (front end 560a) in its result sometimes.
The countermeasure that the temperature of-inhibition rubber section 562 rises-
Secondly, the countermeasure that rises for the temperature that is used to suppress above-mentioned rubber section 562 describes.As this countermeasure, the value V/L1 (vibration number of the rubber section 562 when this value V/L1 is developer roll 510 rotations) that the translational speed V that makes developer roll 510 obtains divided by the spacing L1 of slot part 512 for and make loss elastic modulus G " less than the identical size of frequency (vibration number) of storage elastic modulus G '.
Use Figure 21, this project is described.Described value V/L1 is littler than peak frequency f (20000Hz).Also have, shown in the chart of Figure 21, the frequency field littler than peak frequency f comprises: the storage elastic modulus G ' is than loss elastic modulus G " big frequency field (below, also be called frequency field A1)) and the storage elastic modulus G ' than loss elastic modulus G " little frequency field (also being called frequency field A2).Specifically, the chart and the loss elastic modulus G of storage elastic modulus G ' " the frequency f 1 that intersects of chart be about 760Hz; in the zone of 760Hz～20000Hz (frequency field A2); store elastic modulus G ' less than loss elastic modulus G ", in the zone below 760Hz, the storage elastic modulus G ' is greater than loss elastic modulus G ".Also have, described value V/L1 (vibration number of rubber section 562) is about 442Hz, therefore, when rubber section 562 vibrations, has loss elastic modulus G " less than the relation of storing elastic modulus G '.
Like this, at loss elastic modulus G " less than under the situation of storing elastic modulus G ', the influence of adhesion properties becomes the influence big (mastery) than elastic property.Also have,, suppress the vibration of the strand of formation rubber section 562, therefore, suppress the generation of heat by suppressing the elastic property of rubber section 562, its result, the temperature that suppresses rubber section 562 rises.Thereby, also suppress the film on the rubber section 562.
Secondly, use experimental result shown in Figure 24, the concrete effect of this countermeasure is described.Figure 24 is the table of expression experimental result, the relation that has or not of the temperature of the size of the value of showing V/L1 and rubber section 562 and the generation of film.The temperature of rubber section 562 shown in Figure 24 is measured by following method.That is, on rubber section 562, thermopair is installed, is measured the temperature of rubber section 562 with the NR-1000 (thermometrograph) of (strain) KEYENCE.In addition, having or not by the following method of the generation of film measured.That is, after printing 3000 continuously, judge with visual whether the surface of rubber section 562 film has taken place.Also have, in the present embodiment, investigation has changed the having or not of generation of the temperature of the rubber section 562 in (embodiment 6, comparative example 3, comparative example 4) under the situation of size of spacing L1 of the translational speed V of developer roll 510 and slot part 512 and film.
As described in present embodiment, at translational speed V is 50mm/s, and spacing L1 is under the situation of 141 μ m, promptly be worth V/L1 (vibration number of rubber section 562) is (embodiment 6) under the situation of 442Hz, loss elastic modulus G " less than storage elastic modulus G ' (with reference to Figure 21).Also having the temperature of rubber section 562 is 43.2 ℃, on the surface of rubber section 562 film does not take place.
On the other hand, as a comparative example 3, be 160mm/s at translational speed V, and spacing L1 is (value V/L1 is 1135Hz) under the situation of 141 μ m, loss elastic modulus G " greater than the storage elastic modulus G '.Also have, the temperature of rubber section 562 is 50.3 ℃, on the surface of rubber section 562 film has taken place.In addition, as a comparative example 4, be 320mm/s at translational speed V, its Ei spacing L1 is (value V/L1 is 2831Hz) under the situation of 113 μ m, loss elastic modulus G " greater than the storage elastic modulus G '.Also have, the temperature of rubber section 562 is 54.7 ℃, and film has taken place on the surface of rubber section 562.
Like this, when rubber section 562 vibrations, become loss elastic modulus G " less than the situation (embodiment 6) of storing elastic modulus G '; become loss elastic modulus G during with rubber section 562 vibrations " compare greater than the situation (comparative example 3, comparative example 4) of the relation of storing elastic modulus G ', the temperature of rubber section 562 is low, and film does not take place on the surface of rubber section 562.Thus, confirm the validity of this countermeasure by experiment.
From as can be known above-mentioned, in the printer 1 of present embodiment, by making described value V/L1 in the little vibration number of the vibration number (peak frequency f) of the rubber section 562 when maximum with the loss tangent tan δ of rubber section 562, loss elastic modulus G " less than the identical size of vibration number of storing elastic modulus G '; when the rotation of developer roll 510; rubber section 562 can be used with the character of rubbery state, and can be suppressed the temperature rising (follow in this, film also takes place) of rubber section 562.
Rubber section 562-among the-embodiment 7～9
Secondly, the rubber section 562 among the rubber section in material and the above-mentioned embodiment (embodiment 6) 562 embodiment 7～9 inequality is described.Also have, the structure of developer roll 510 grades is identical with embodiment 6.
Figure 25 is the storage elastic modulus G with respect to vibration number (frequency) of the rubber section 562 among the expression embodiment 7, the chart that waits.Show the storage elastic modulus G of rubber section 562 among Figure 25 in the same manner with Figure 21,, loss elastic modulus G " and loss tangent tan δ.In addition, the scale of the transverse axis of chart is a logarithm.
Peak frequency f when the loss tangent tan δ of the rubber section 562 among the embodiment 7 is maximum is about 6700Hz as illustrated in fig. 25.Also have, as mentioned above, the translational speed V of developer roll 510 is 50mm/s, and the spacing L1 of slot part 512 is 141 μ m, and therefore, value V/L1 (vibration number of rubber section 562) is about 442Hz.Under described situation, the relation of V/L1＜f is set up, and this rubber section 562 is also used with the character of rubbery state when developer roll 510 rotations.
In addition, as shown in figure 25, comprise that less than the frequency field of peak frequency f the storage elastic modulus is greater than loss elastic modulus G " frequency field, but different, do not comprise that the storage elastic modulus G ' is less than loss elastic modulus G with Figure 21 " frequency field.Also have, described value V/L1 (vibration number of rubber section 562) is about 442Hz, therefore, when rubber section 562 is vibrated, becomes loss elastic modulus G ' less than loss elastic modulus G " relation.Thereby in the rubber section 562 in embodiment 7, elastic property is a mastery with respect to adhesion properties, thereby the temperature that suppresses this rubber section 562 rises, and its result also suppresses the generation of film.
At this, use experiment effect shown in Figure 26, the temperature that specifies the rubber section 562 among the embodiment 7 rises and is suppressed the effect of (follow in this, also suppress the generation of film).Figure 26 is the table of expression experimental result, the relation that has or not of the generation of the size of expression value V/L1 and the temperature of rubber section 562 and film.Also have, the determination methods that has or not that the assay method of temperature as shown in figure 26 and film produce as mentioned above.
Also having, is 50mm/s at translational speed V, and spacing L1 is under the situation of 141 μ m, promptly be worth (embodiment 7) under the situation that V/L1 is 442Hz, loss elastic modulus G " less than the storage elastic modulus G '.Also have, the temperature of rubber section 562 is 42.4 ℃, and film does not take place on the surface of rubber section 562.
Equally, as embodiment 8, at translational speed V is 160mm/s, and spacing L1 is (value V/L1 is 1135Hz) under the situation of 141 μ m, or as embodiment 9, translational speed V is 320mm/s, and spacing L1 is (value V/L1 is 2830Hz) under the situation of 113 μ m, loss elastic modulus G " also less than the storage elastic modulus G '.Also have, the temperature under the temperature of the rubber section 562 under two kinds of situations and the situation of embodiment 7 is roughly the same, and film does not take place on the surface of rubber section 562.
From as can be known above-mentioned, in embodiment 7～9, also by make described value V/L1 for the little frequency of the vibration number (peak frequency f) of rubber section 562 when the loss tangent tan δ than rubber section 562 becomes maximum in, make loss elastic modulus G " less than the identical size of vibration number of storing elastic modulus G '; when developer roll 510 rotations; can use rubber section 562, and suppress the temperature rising (follow in this, also suppress the generation of film) of rubber section 562 with the character of rubbery state.
-about the rising of developer roll 510 control and the control that descends-
As mentioned above, developer roll 510 is delivered to developing location by rotation with ink powder, supports in the development of the sub-image of photoreceptor 20 with this ink powder (supporting in the ink powder of developer roll 510).Also have, when developer roll 510 carries out this development, with constant rotating speed (below, for convenience of explanation, this rotating speed also is called rotating speed when developing) rotation (in the present embodiment, the rotating speed that becomes about 320mm/s with the translational speed on the surface of developer roll 510 rotates).
Thereby, control module 100 when beginning to develop, the rotation of the developer roll 510 that stopped of control, the rotating speed when rotating speed of this developer roll 510 is increased to described development.In addition, control module 100 need be when develop finishing, and the rotation of control developer roll 510 of rotating speed rotation when developing is low to moderate 0 (that is, need stop the rotation of this developer roll 510) with the speed drop of this developer roll 510.
At this, illustrate developer roll 510 becomes the state of rotating speed rotation when developing from halted state till during, how control module 100 controls the rotation of (below, for convenience of explanation, described control is called the rising control of developer roll 510) developer roll 510.In addition, illustrate developer roll 510 till the state of rotating speed rotation when developing becomes halted state during, how control module 100 controls the rotation of developer roll 510.
" about the basic idea of control "
As in the explanation described in the goal of the invention, the surperficial butt of described butt parts (being described rubber section 562 in the present embodiment) and developer roll 510 as the bed thickness limiting part, in addition, this surface of assorted developer roll 510 is provided with the slot part 512 of configuration regularly.Therefore, if developer roll 510 rotations, then developer roll 510 slides with respect to rubber section 562 and moves, thus rubber section 562 vibrations.
Also have, what know is, if (translational speed on the described surface during developer roll 510 rotations is equivalent to this vibration number divided by the value that the spacing that makes progress in week of this developer roll 510 of described slot part 512 obtains) is excessive the vibration number of rubber section 562, then the rubber section 562 that is made of rubber elastomer does not show the character of rubbery state, and the character of demonstration glassy state, thereby, when developing, need so that described vibration number constant too much (promptly, do not make rubber section 562 show the character of glassy states) rotating speed, make developer roll 510 rotation, the function of the rubber section 562 that constitutes by rubber elastomer with suitable performance.
Be described in detail for this project.Yet,, storage elastic modulus and loss elastic modulus are arranged as the modulus of the dynamic viscoelastic that shows rubber section 562 materials such as grade that constitute by rubber elastomer.The storage elastic modulus is represented the elastic property of material, and loss elastic modulus is represented the adhesion properties of described material.Also have, the variation of the vibration number of this material when both values are vibrated according to described material changes.In addition, both values are crossed with regard to the variation of this vibration number and are changed, therefore, loss elastic modulus G " also change divided by the so-called loss tangent tan δ that stores elastic modulus G ' according to the variation of vibration number.Also have, the vibration number of knowing with this loss tangent tan δ the described material when maximum is border (below, this vibration number also is called border vibration number f), and this Substance Properties changes.That is, the vibration number of knowing this material when described material vibrates was than border vibration number f hour, and this material shows the character of rubbery state, and when bigger than border vibration number f, this material shows the character of glassy state.
Figure 25 is described material (that is, rubber section 562) vibration number (below, for convenience of explanation, also be called frequency) and storage elastic modulus, loss elastic modulus, and the chart of the relation of loss tangent of expression present embodiment.As shown in Figure 25, in the rubber section 562 of present embodiment, storage elastic modulus G ', loss elastic modulus G ", and loss tangent tan δ also change according to the variation of the frequency of rubber section 562.Also have, about this rubber section 562, described border vibration number f is about 6700Hz, thereby the vibration number of this rubber section 562 during rubber section 562 vibration is during less than about 6700Hz, the character of these rubber section 562 demonstration rubbery states, greater than about 6700Hz the time, this rubber section 562 shows the character of glassy state.
Also have, the form of Figure 25 is obtained by following mensuration.As the mensuration machine of this mensuration, use TA instrument system ARES, the anchor clamps during as mensuration, the anchor clamps of use torque type.Also have, as mode determination, select frequency interdependence mode determination, the deflection that applies of frequency is 0.1% (constant).In addition, the temperature maintenance of the rubber section 562 during mensuration is at 20 ℃.
Like this, if the vibration number of rubber section 562 is greater than border vibration number f, then the rubber section 562 that is made of the rubber image information is not the character that shows rubbery state, and shows the character of glassy state.Thereby, when developing, need to control this vibration number the function of the rubber section 562 that constitutes by rubber elastomer with suitable performance so that described vibration number is not more than the mode (making described vibration number less than border vibration number f) of border vibration number f.
Also have, the control of described vibration number realizes by the rotating speed of control developer roll 510.That is, the vibration number of rubber section 562 as mentioned above, the value that the translational speed on the described surface when being developer roll 510 rotation obtains divided by the spacing that makes progress in week of this developer roll 510 of wye, therefore, this vibration number is proportional to this translational speed.Also have, this translational speed is proportional to the rotating speed of developer roll 510, and therefore, this vibration number is proportional to the rotating speed of developer roll 510.That is, if increase the rotating speed of developer roll 510, it is big that then described vibration number becomes, if reduce this rotating speed, then this vibration number diminishes.
Thereby, if rotating speed when development (described rotating speed) of the developer roll 510 when developing is become make described vibration number (, described translational speed is divided by the value of described spacing) less than the rotating speed of described border vibration number, described translational speed is less than the long-pending rotating speed of described spacing and described border vibration number in other words, then when developing, the rubber section 562 that is made of rubber elastomer can be maintained the character of rubbery state, can suitably bring into play the function of this rubber section 562.
Also have, in the present embodiment, as mentioned above, described translational speed when developing, described spacing, described border vibration number are respectively about 320mm/s, about 113 μ m, about 6700Hz, the described long-pending 757.1mm/s that becomes, therefore, when developing, the translational speed on developer roll 510 surface of the developer roll 510 during the rotating speed rotation during with described develop becomes less than described long-pending.Promptly, the described control module 100 of present embodiment is for the suitable function of this developer roll 510 of performance, so that rotating speed becomes described translational speed is controlled developer roll 510 less than the mode of the long-pending rotating speed of described spacing and described border vibration number rotation during described development of developer roll 510.
Yet, as explanation in the above-mentioned background etc., if rubber section 562 develops with the state of the character that shows rubbery state, because based on the adhesiveness of the rubber section 562 of the character of this rubbery state etc., films take place in rubber section 562.
Figure 23 A is illustrated in the synoptic diagram that the appearance of film takes place rubber section 562.The rubber section 562 of present embodiment as mentioned above, with its long side direction along developer roll 510 axially, and an end of its short side direction (that is, the front end 560a of limiting plate 560) is towards the mode of the sense of rotation upstream side of developer roll 510, with the surperficial butt of developer roll 510.In addition, the abutting part 562a with surperficial butt developer roll 510 rubber section 562 leaves from a described end (front end 560a) on described short side direction.In described structure, ink powder is followed the rotation of developer roll 510, flows into the D (part between rubber section 562 and the developer roll 510) shown in Figure 23 A, therefore, implements the part generation film of oblique line in Figure 23 of rubber section 562 A.
Also have, remarkable as this film, then develop and finally be formed at the image quality variation of the image of medium.
Therefore, the control module 100 of present embodiment is carried out the control that is used for film is shaken off from rubber section 562 temporarily in described rising control and described decline control.
At this, illustrate which kind of control is used for the control that film is shaken off from rubber section 562 is.As mentioned above, rubber section 562 shows the character of rubbery state according to its vibration number, or shows the character of glassy state.Also have, the rubber section 562 of vibration shows under the situation of character of glassy states, the described adhesiveness attenuation based on the character of rubbery state of rubber section 562, and film leaves easily from rubber section 562.In addition, when rubber section 562 shows the character of glassy state, compare during with the character that shows rubbery state, rubber section 562 shows hard character, therefore, when developer roll 510 utilizes described abutting part 562a mobile with respect to rubber section 562 slips, it is (opposite that the vibration that produces at this abutting part 562a passes to the part that the film of having implemented oblique line in Figure 23 A exists easily, when rubber section 562 shows the character of rubbery state, vibration in abutting part 562a generation, pass in the process of the part that film exists and absorbed by rubber section 562, therefore, that passes to this part).Therefore, when the rubber section 562 of vibration showed the character of glassy state, vibration passed to the film that leaves easily effectively, and therefore, film is suitably shaken off from rubber section 562.
On the other hand, as mentioned above, if becoming, the rotating speed of developer roll 510 makes described rotating speed (promptly, described rotating speed is divided by the value of described spacing) less than the rotating speed of described border vibration number, described in other words translational speed is less than the long-pending rotating speed of described spacing and described border vibration number, then the rubber section 562 of blocking shows the character of rubbery state, on the contrary, the rotating speed of developer roll 510 becomes makes described vibration number (promptly, described translational speed is divided by the value of described spacing) become rotating speed than described border vibration number, described in other words translational speed is greater than the long-pending rotating speed of described spacing and described border vibration number, and the rubber section 562 of then vibration shows the character of glassy state.Thereby,, then film suitably can be shaken off from rubber section 562 if control the rotation of developer roll 510 greater than the mode of the long-pending rotating speed of described spacing and described border vibration number so that the rotating speed of developer roll 510 becomes described translational speed.
Be conceived to this point, in the present embodiment, for film is shaken off from rubber section 562, described control module 100 is in described rising control and described decline control, and is interim so that the rotating speed of developer roll 510 becomes described translational speed is controlled developer roll 510 greater than the mode of the long-pending rotating speed of described spacing and described border vibration number rotation.
More particularly, in described rising control, after the rotation of control module 100 beginning developer rolls 510, with the rotating speed of developer roll 510 be increased to described translational speed greater than the long-pending rotating speed of described spacing and described border vibration number (below, also be called the first rotating speed V1), film is shaken off from rubber section 562.Also have, then (promptly, after the rotating speed of developer roll 510 becomes the described first rotating speed V1), control module 100 with the speed drop of developer roll 510 be low to moderate described translational speed less than the long-pending rotating speed of described spacing and described border vibration number (below, also be called the second rotating speed V2), on described developer roll 510, carry out the development of described sub-image with this second rotating speed V2 rotation.That is, control module 100 is increased to the described first rotating speed V1 with the rotating speed of developer roll 510 before the development of the function that does not need to bring into play the rubber section 562 that is made of rubber elastomer is implemented, film is shaken off from rubber section 562.Then, under the situation of suitably removing film, on developer roll 510, carry out the development of described sub-image.
In addition, control module 100 make with described translational speed less than the long-pending rotating speed of described spacing and described border vibration number (below, also be called the 5th rotating speed V5, in the present embodiment, the 5th rotating speed V5 equates with the described second rotating speed V2) rotation developer roll 510 carry out the development of described sub-image, after finishing the development of developer roll of this sub-image, in in described reduction, controlling, with the rotating speed of developer roll 510 be increased to described translational speed greater than the long-pending rotating speed of described spacing and described border vibration number (below, also be called the 4th rotating speed V4, in the present embodiment, the 4th rotating speed V4 equates with the described first rotating speed V1), stop the rotation of developer roll 510.That is, control module 100 is increased to described the 4th rotating speed V4 with the rotating speed of developer roll 510 after the development of the function that does not need to bring into play the rubber section 562 that is made of rubber elastomer is implemented, and the film that takes place when developing is shaken off from rubber section 562.
Also have, the translational speed that becomes the surface of development developer roll 510 for the described second rotating speed V2 and described the 5th rotating speed V5 has been illustrated for the situation of the rotating speed of about 320mm/s, but in the present embodiment, the translational speed on described first rotating speed V1 and described the 4th rotating speed V4 surface that is developer roll 510 is the rotating speed of about 800mm/s (described second rotating speed V2 and described the 5th rotating speed V5 2.5 times).As mentioned above, the long-pending of described spacing and described border vibration number is 757.1mm/s, therefore, if the first rotating speed V1 and the 4th rotating speed V4 are made as such rotating speed, then film suitably can be shaken off from rubber section 562.Yet rotating speed is not limited to these numerical value, can suitably determine according to the value of described spacing or border vibration number.
" concrete example of the rising control of developer roll 510 "
Secondly, use Figure 27 that the concrete example of the rising control of developer roll 510 is described.Figure 27 is the synoptic diagram of the change in rotational speed of the developer roll 510 of expression when carrying out the rising control of developer roll 510, and the time is transverse axis, and the rotating speed of developer roll 510 is the longitudinal axis.Also have, in this, the development that relates to the development that begins sub-image begin sequential and begin to be used for this sub-image development the development bias voltage apply apply the beginning sequential.
In Figure 27, the time of transverse axis is 0 o'clock, and developer roll 510 stops.Also have, control module 100 for film is shaken off from rubber section 562, will make developer roll 510 give this developer roll 510 with the instruction of described first rotating speed V1 rotation at time ta1, the rotation of beginning developer roll 510 improves the rotating speed of developer roll 510 to the described first rotating speed V1.The rotating speed of developer roll 510 increases gradually, since 0, below 9, also is called the 3rd rotating speed V3 via described translational speed and described spacing and the long-pending rotating speed that equates of described border vibration number at time ta2), become the first rotating speed V1 at time ta3.
Secondly, control module 100 is at time ta4, for the suitable function of performance rubber section 562 and will make developer roll 510 give this developer roll 510 when develop carrying out, the rotating speed of developer roll 510 is reduced to the second rotating speed V2 with the instruction of the described second rotating speed V2 (, rotating speed during described the development) rotation.The rotating speed of developer roll 510 reduces gradually, from the described first rotating speed V1, via described the 3rd rotating speed V3, becomes described second rotating speed V2 at time ta6 at time ta5.Also have, in the present embodiment, setting-up time ta4, making the time from time ta3 to time ta4 is that developer roll 510 is longer than the time (being about 70msec in the present embodiment) that developer roll 510 rotates a circle with the time of described first rotating speed V1 rotation.
In addition, control module 100 at the rotating speed of developer roll 510 after time ta5 becomes described the 3rd rotating speed V3, more strictly speaking, after the rotating speed of developer roll 510 becomes described the 3rd rotating speed V3, when the rotating speed that has passed through developer roll 510 described in the described surface of developer roll 510 becomes the 3rd rotating speed V3 the part of described rubber section 562 butts follow described further rotation for developer roll 510 move to the time point (this time point is expressed as time ta7 in Figure 27) of time of described photoreceptor 20 opposed positions afterwards, make development bias voltage applying unit 121 the applying of bias voltage that begin to develop at time ta8.
Time with the development bias voltage is begun sequential to be made as such reason and to describe.As mentioned above, control module 100 is in order to shake off film from rubber section 562, make developer roll 510 till from time ta3 to time ta4 during with described first rotating speed V1 rotation, but strictly speaking.Rubber section 562 show glassy states character during be time ta2 between the time ta5, therefore, film is being shaken off from rubber section 562 in this period.Yet when rubber section 562 is shaken off film, film falls to gravity direction, suitably reclaimed by ink powder resettlement section 530, but the part of this film moves to developer roll 510, is attached to the surface of this developer roll 510.Also have, being attached to this surperficial film follows the rotation of developer roll 510 from the butt position of rubber section 562 butts and moves, arrive the contact position of ink powder donor rollers 550 contacts at last, stripped by ink powder donor rollers 550 and suitably reclaimed by ink powder resettlement section 530 at this contact position.Yet the film that is attached to the surface of developer roll 510 is followed the rotation of developer roll 510 from described butt position and is moved, and when arriving with the opposed position of described photoreceptor 20, if apply the development bias voltage, this film may move to photoreceptor 20.Also have,, then hinder the suitable recovery that utilizes ink powder resettlement section 530 of film if this film moves to photoreceptor 20.
Therefore, the control module 100 of present embodiment is for fear of such problem, the rotating speed of developer roll 510 after time ta5 becomes described the 3rd rotating speed V3 (promptly, film is for being attached to the back, surface of developer roll 510 at last), when having passed through volume rotating speed in the described surface of developer roll 510 and having become described the 3rd rotating speed V3 for raw material the part of (time ta5) described rubber section 562 butts follow the further rotation of described developer roll 510 move to time of described photoreceptor 20 opposed positions (, the film that is attached to described surface is at last followed the rotation of developer roll 510 from described butt position and is moved, arrive time with described photoreceptor 20 opposed positions) time point (time ta7) afterwards, make described development bias voltage applying unit 121 the applying of bias voltage that begin to develop at time ta8.
Also have, after time ta8 begins to develop time of bias voltage, after control module 100 is treated the fully stable effluxion of this development bias voltage, make developer roll 510 carry out the development of sub-image with described second rotating speed V2 rotation at time ta9.That is, make sub-image and developer roll 510 on the photoreceptor 20 opposed, begin the development of this sub-image at time ta9.
" concrete example of the decline control of＜developer roll 510〉"
Secondly, use Figure 28 that the concrete example of the rising control of developer roll 510 is described.Figure 28 is the synoptic diagram of the change in rotational speed of the developer roll 510 of expression when carrying out the decline control of developer roll 510, and the time is transverse axis, and the rotating speed of developer roll 510 is the longitudinal axis.Also have, in this, the development that relates to the development that finishes sub-image finish sequential, and end be used for this sub-image development the development bias voltage apply apply the end sequential.
In Figure 28, the time of transverse axis is 0 o'clock, and developer roll 510 rotates with described the 5th rotating speed V5, carries out the development of sub-image.That is, control module 100 make with when develop carrying out suitably the developer roll 510 of the 5th rotating speed V5 rotation of the function of performance rubber section 562 carry out one on the line of sub-image.
Also have, after control module 100 finishes the development of sub-image at time tb1,, give to this developer roll 510 and to make the instruction of developer roll 510 for film is shaken off from rubber section 562 at time tb2, the rotating speed of developer roll 510 is improved to the 4th rotating speed V4 with described the 4th rotating speed V4 rotation.The rotating speed of developer roll 510 increases gradually, from described the 5th rotating speed V5, via the 3rd rotating speed V3 that described translational speed equates with described spacing and described border vibration number, becomes four rotating speed V4 at time tb5 at time tb4.
At this, the end sequential that applies that applies that finishes the development bias voltage is described.In the present embodiment, the error of koala sequential control causes applying and finishes sequential and finishing the possibility of sequential prior to developing, and is not developments to be finished sequential and apply finish sequential as same sequential, finishes sequential and is made as slower than the end sequential of developing and will apply.That is, after control module 100 finishes the development of sub-image at time tb1, finish applying based on the development bias voltage of development bias voltage applying unit 121.And then, control module 100, at the rotating speed of developer roll 510 before time tb4 becomes described the 3rd rotating speed V3, more strictly speaking, the rotating speed of developer roll 510 becomes before described the 3rd rotating speed V3, through in the described surface of developer roll 510, when the rotating speed of developer roll 510 becomes described the 3rd rotating speed V3 the part of described rubber section 562 butts follow the further rotation of described developer roll 510 and move to the time point (this time point is expressed as time tb6 in Figure 28) of time of described photoreceptor 20 opposed positions before, finish applying of described development bias voltage at time tb3.
Promptly, control module 100 is for fear of described problem, the film that promptly is attached to the surface of developer roll 510 is followed the rotation of developer roll 510 from described butt position and is moved, when arriving with the opposed position of described photoreceptor 20, if apply the development bias voltage, the problem that moves of this thin film wire photoreceptor 20 then, the rotating speed of developer roll 510 after time tb4 becomes described the 3rd rotating speed V3 (promptly, film is attached to after the surface of developer roll 510 at first), through in the described surface of developer roll 510, when the rotating speed of developer roll 510 becomes described the 3rd rotating speed V3 the part of (time tb4) described rubber section 562 butts follow the further rotation of described developer roll 510 move to time of described photoreceptor 20 opposed positions (, the film that is attached to described surface at first is from the rotation of described butt position version institute developer roll 510 and move, time till arrival and the described photoreceptor 20 opposed positions) time point (time tb6) finishes the time of described development bias voltage before at time tb3.
Secondly, control module 100 is after the rotating speed of time tb5 developer roll 510 becomes described the 4th rotating speed V4, and the rotating speed in that time tb7 reduces developer roll 510 stops to begin the rotation of developer roll 510.At this, when the control module 100 of present embodiment stops the rotation of developer roll 510, the rotating speed of developer roll 510 is after time tb8 becomes described the 3rd rotating speed V3, through in the surface of described developer roll 510, when the rotating speed of developer roll 510 becomes described the 3rd rotating speed V3 the part of described rubber section 562 butts follow the further rotation of developer roll 510 and move to described ink powder donor rollers 550 contacts contact position time time point (this time point is expressed as time tb10 in Figure 28) afterwards, stop described rotation at time tb12.
The utilization that stops to be provided with so constantly with developer roll 510 is described.As mentioned above, control module 100 is in order to shake off from rubber section 562 through film, make developer roll 510 from time tb5 between the time tb7 with described the 4th rotating speed V4 rotation, but strictly speaking, rubber section 562 show glassy states character during from time tb4 to time tb8 till during, therefore, during film is shaken off from rubber section 562.Also have, as mentioned above, when rubber section 562 was shaken off, the part of this film moved to developer roll 510, is attached to the surface of this developer roll 510 with film.In addition, being attached to this surperficial film follows the rotation of developer roll 510 from the butt position of rubber section 562 butts and moves, arrive the contact position of ink powder donor rollers 550 contacts at last, stripped by ink powder donor rollers 550, suitably reclaim by ink powder resettlement section 530 at this contact position.Also have, the film of being shaken off during till preferably from time tb4 to time tb8 that is attached to described surface, was all stripped by ink powder donor rollers 550 at described contact position before the time, tb12 stopped at developer roll 510.
Therefore, the control module 100 of present embodiment is considered this and when stopping the rotation of developer roll 510, the rotating speed of developer roll 510 after time tb8 becomes described the 3rd rotating speed V3 (promptly, film is attached to the back, surface of developer roll 510 at last), passed through in the described surface of developer roll 510, when the rotating speed of developer roll 510 becomes described mode the part of (time tb8) described rubber section 562 butts follow the further rotation of developer roll 510 and move to the contact position that contacts with described ink powder donor rollers 550 time (, the film that is attached to described surface is at last followed the rotation of developer roll 510 from described butt position and is moved, arrive the time till the described contact position) time point (time tb10) afterwards, stop described rotation at time tb12.
Also have, control module 100 is after time tb7 begins to stop the rotation of developer roll 510, and in order to realize described project, the cost adequate time stops developer roll 510.More particularly, control module 100 is given to this developer roll 510 at time tb7 and is made the instruction of developer roll 510 with described the 5th rotating speed V5 (that is, rotating speed during described develop) rotation, and the rotating speed of developer roll 510 is reduced to the second rotating speed V2.The rotating speed of developer roll 510 reduces gradually, from described the 4th rotating speed V4, via described the 3rd rotating speed V3, becomes five rotating speed V5 at time tb9 at time tb8.Also have, temporarily make developer roll 510 rotations with the 5th rotating speed V5 after, give the instruction that developer roll 510 is stopped at time tb11 to this developer roll 510, the rotating speed of developer roll 510 is reduced to 0.The rotating speed of developer roll 510 reduces gradually, from described the 5th rotating speed V5, becomes 0 (developer roll 510 stops) at time tb12.Also have, in the present embodiment, setting-up time tb7, the time till making from time tb5 to time tb7, the time (be about 70msec in the present embodiment) that to be developer roll 510 rotate a circle with the time ratio developer roll 510 of described the 4th rotating speed V4 rotation are grown.
-about the validity of the printer 10 of present embodiment-
As mentioned above, in the printer 10 of present embodiment, after the rotation of control module 100 beginning developer rolls 510, the rotating speed of developer roll 510 is increased to the long-pending first rotating speed V1 of described translational speed greater than described spacing and described border vibration number, after the rotating speed of developer roll 510 becomes the described first rotating speed V1, the speed drop of developer roll 510 is low to moderate the long-pending second rotating speed V2 of described translational speed less than described spacing and described border vibration number, make developer roll 510 carry out the development of described sub-image with this second rotating speed V2 rotation, therefore, before film becomes significantly, film is suitably shaken off from rubber section 562.Thereby, suitably prevent to develop and finally be formed at the deterioration of image quality of the image of medium.
In addition, in the printer 10 of present embodiment, control module 100 is after the rotating speed of developer roll 510 becomes the described first rotating speed V1, with the rotating speed of developer roll 510 from this first rotating speed V1, via described translational speed and described long-pending the 3rd rotating speed V3 that equates, be reduced to the described second rotating speed V2, and after the rotating speed of developer roll 510 becomes the 3rd rotating speed V3, begin to utilize the applying of development bias voltage of described development bias voltage applying unit 121.More strictly speaking, after the rotating speed of developer roll 510 becomes the 3rd rotating speed V3, passed through in the surface of developer roll 510, the part of described rubber section 562 butts was followed the further rotation of developer roll 510 and is moved to after the time point with time of described photoreceptor 20 opposed positions when the rotating speed of described developer roll 510 became the 3rd rotating speed V3, the applying of the bias voltage that begins to develop.Therefore, film reduces to the possibility that photoreceptor 20 moves, and utilizes ink powder resettlement section 530 suitably to reclaim.Also have, after the rotating speed of developer roll 510 becomes the 3rd rotating speed V3, if beginning applies based on the development bias voltage of described development bias voltage applying unit 121, bias voltage applies even then began to develop before described time point, also produce certain described effect (that is, the effect that film is more suitably reclaimed by ink powder resettlement section 530), if but consideration obtains the generation of this effect fully, then preferably after described time point, the applying of the bias voltage that begins to develop.
In addition, in the printer 10 of present embodiment, control module 100 makes with described translational speed and carries out the development of described sub-image less than the developer roll 510 of long-pending the 5th rotating speed V5 rotation of described spacing and described border vibration number, after the development of this sub-image finishes, the rotating speed of developer roll 510 is increased to described translational speed greater than described the 4th long-pending rotating speed V4, after the rotating speed of developer roll 510 becomes the 4th rotating speed V4, stop the rotation of developer roll 510.Therefore, before film was remarkable, film was suitably shaken off from rubber section 562.Thereby, suitably prevent to develop and finally be formed at the deterioration of the image quality of the image on the medium.
In addition, in the printer 10 of present embodiment, after control module 100 finishes the development of sub-image, with the rotating speed of developer roll 510 since the 5th rotating speed V5, via described translational speed and described long-pending the 3rd rotating speed V3 that equates, be increased to the 4th rotating speed V4, and before the rotating speed of developer roll 510 becomes described the 3rd rotating speed V3, finish applying based on the development bias voltage of described development bias voltage applying unit 121.More strictly speaking, after the rotating speed of developer roll 510 becomes the 3rd rotating speed V3, through in the surface of developer roll 510, the part of described rubber section 562 butts was followed the further rotation of developer roll 510 and is moved to before the time point with time of photoreceptor 20 opposed positions when the rotating speed of developer roll 510 became the 3rd rotating speed V3, finished applying of development bias voltage.Therefore, film reduces to the possibility that photoreceptor 20 moves, and utilizes ink powder resettlement section 530 suitably to reclaim.Also have, before described time point, finish applying of development bias voltage, then produce described effect (promptly, the effect that film is suitably reclaimed by ink powder resettlement section 530), but, preferably before becoming the 3rd rotating speed V3, finishes the rotating speed of developer roll 510 applying of development bias voltage in order to have leeway and to produce this effect reliably.
In addition, in the printer 10 of present embodiment, control module 100 is after the rotating speed of developer roll 510 becomes the 4th rotating speed V4, when stopping the rotation of developer roll 510, after the rotating speed of developer roll 510 becomes the 3rd rotating speed V3, passed through in the surface of developer roll 510, the part of described rubber section 562 butts was followed the further rotation of developer roll 510 and is moved to after the time point with time of described ink powder donor rollers 550 position contacting when the rotating speed of developer roll 510 became the 3rd rotating speed V3, stop described rotation, therefore, film was suitably stripped by ink powder donor rollers 550 before developer roll 510 stops.
The manufacture method of-developer roll 510-
At this, use Figure 16 A～Figure 16 E, Figure 17 that the manufacture method of developer roll 510 is described.Figure 16 A～Figure 16 E is the synoptic diagram of variation of the developer roll 510 in the manufacture method of expression developer roll 510.Figure 17 is the key diagram of the rotary processing of explanation developer roll 510.
At first, shown in Figure 16 A, preparing z is the tubing 600 of the base material of developer roll 510.The wall thickness of this tubing 600 is 0.5～3mm.Secondly, shown in Figure 16 B, make flange at the long side direction both ends of this tubing 600 and be pressed into portion 602.This flange is pressed into portion 602 and makes by cut.Secondly, shown in Figure 16 C, be pressed into portion 602 to this flange and be pressed into flange 604.In order to make fixing reliable to tubing 600 of flange 604, after being pressed into of flange 604, flange 604 also can to bonding or welding.Secondly, shown in Figure 16 D, centerless grinding is implemented on the surface of the tubing 600 that is pressed into flange 604.This centerless grinding is implemented on whole of this surface, and 10 mean roughness Rz on this surface after the centerless grinding are below the 1.0 μ m.Secondly, shown in Figure 16 E, the tubing 600 that has been pressed into flange 604 is implemented rotary processing.In the present embodiment, implement to have used so-called through-feed rotation (also be called the motion rotation, the run through rotation) processing of two round formers 650,652.
Promptly, as shown in figure 17, the round former of clamping as the configuration of described tubing 600 ground of workpiece 650,652 is pressed under the state on this tubing 600 with the pressure of stipulating (direction indication with this pressure in Figure 17 is mark P), these two round formers 650,652 are rotated to equidirectional (with reference to Figure 17).In the through-feed rotation, by 650,652 rotations of circle former, tubing 600 is to direction (with reference to Figure 17) rotation opposite with the sense of rotation of circle former 650,652, and simultaneously, the direction shown in the mark H moves in Figure 17.Surface at circle former 650,652 possesses protuberance 650a, the 652a that is used to form groove 680, and this protuberance 650a, 652a make tubing 600 distortion, form groove 680 (corresponding with the slot part 512 of Fig. 5) at tubing 600 thus.
Also have, after rotary processing finishes, implement plating on the surface of described central portion 510a.In the present embodiment,, use no electrolysis Ni-P plating, but be not limited to this, for example, use hard chromium plating or plating as this plating.
-other embodiments-
More than, based on above-mentioned embodiment, image processing system of the present invention etc. has been described, but the embodiment of foregoing invention forms in order to understand the present invention easily, do not limit the present invention.The present invention can change in the scope that does not break away from its aim, improve, and the present invention comprises its equivalent certainly.
In the above-described embodiment, as image processing system, with the full-color laser beam printer of intermediate transfer type is that example is illustrated, but the present invention goes for various image processing systems such as full-color laser beam printer, monochromatic laser beam printer, duplicating machine, facsimile recorder beyond the intermediate transfer type.
In addition, for photoreceptor, be not limited to also that outer peripheral face at conductive substrate cylindraceous is provided with photographic layer and the so-called light-sensitive roller that constitutes also can be provided with the so-called sensitization band that photographic layer constitutes for the surface at the strip-shaped conductive base material.
In addition, in the above-described embodiment, as shown in Figure 4, described butt parts are the surperficial butts with developer roll 510, and limit the rubber section 562 that supports in the bed thickness of the ink powder of developer roll 510, but are not limited thereto.For example, described butt parts are so long as be made of rubber elastomer, just can be for last slice 520 or ink powder donor rollers 550.
But, at described butt parts is under the situation of rubber section 562, satisfy the relation of above-mentioned V/L1＜f, can prevent this rubber section 562 from being thus and cause limiting inadequately the situation of the bed thickness of ink powder with the character of glassy state, its result, suitably carrying out aspect the development that utilizes developer roll 510 more preferably above-mentioned embodiment.
In addition, in the above-described embodiment, rubber section 562 with its long side direction along developer roll 510 axially, and an end of its short side direction (the front end 560a of limiting plate 560) is towards the mode and the described surperficial butt (with reference to Fig. 4) of the sense of rotation upstream side of developer roll 510.Also have abutting part 562a rubber section 562 and described surperficial butt on described short side direction, to leave (that is, rubber section 562 is at central part and developer roll 510 butts) from a described end.But, be not limited to above-mentioned.For example, abutting part 562a is a described end.That is, rubber section 562 also can be used edge and developer roll 510 butts.
In addition, in the above-described embodiment, rubber section 562 is that thermoplastic elastomer constitutes by a kind of of rubber elastomer, but is not limited thereto.For example, rubber section 562 also can be made of rubber (more particularly, chemglaze).
In addition, in the above-described embodiment, as shown in Figure 4, described butt parts are to be connected to the surface of developer roll 510 and to limit the rubber section 562 (bed thickness limiting part) that supports in the bed thickness of the developer of developer roll 510, but are not limited to this.For example, the butt parts are as long as be made of rubber elastomer, just can be for last slice 520 or ink powder donor rollers 550.
But, be under the situation of rubber section 562 at described butt parts, by satisfying the relation of above-mentioned V/L1＜f, suitably use this rubber section 562 with the character of rubbery state, aspect the bed thickness that suitably limits ink powder, more preferably above-mentioned embodiment.
In addition, in the above-described embodiment, as shown in Figure 4, with its long side direction along developer roll 510 axially, and an end of its short side direction (that is, the front end 560a of limiting plate 560) is towards the mode of the sense of rotation upstream side of developer roll 510, with the surperficial butt of developer roll 510.In addition, the abutting part 562a with surperficial butt developer roll 510 rubber section 562 leaves from a described end (rubber section 562 is at central part and developer roll 510 butts) on described short side direction.But, be not limited to above-mentioned.For example, the abutting part of rubber section 562 is a described end (that is, rubber section 562 usefulness edges and developer roll 510 butts).
But, as described below, from the aspect of the generation of the abutting part 562a that suppresses rubber section 562 and the film between the described end (front end 560a), more preferably above-mentioned embodiment.That is under the situation of rubber section 562 with central part and developer roll 510 butts, when supposing the temperature rising of rubber section 562, between this an abutting part 562a and a described end film takes place sometimes.Therefore, by described value V/L1 is made as and loss elastic modulus G " less than the identical size of vibration number of storage elastic modulus G ', the temperature that suppresses rubber section 562 rises, its result suppresses the generation of the film between an abutting part 562a and the described end.
In addition, in the above-described embodiment, as shown in Figure 6, described recess is two kinds of different spiral helicine slot parts 512 of the angle of inclination with respect to circumferential of developer roll 510, and these two kinds spiral helicine slot parts 512 intersect mutually and are lattice shape, but are not limited to this.For example, recess also can be the groove shape.In addition, recess is under the situation of slot part, and slot part also can be spiral fashion.In addition, as recess, be provided with a kind of slot part and also can.
In addition, in the above-described embodiment, as shown in Figure 6, developer roll 510 has the end face 515 of the positive dirction of being surrounded by described two kinds of spiral helicine slot parts 512, diagonal line in two diagonal line that the end face 515 of this positive dirction has is circumferential along developer roll 510, but is not limited to this.For example, shown in Figure 18 B, end face can be positive dirction, also can be prismatic.In addition, end face is not a prismatic, and for example, shown in Figure 18 C, circle also can.In addition, shown in Figure 18 A, two cornerwise both sides that the end face of positive dirction has circumferentially can not along described yet.Also have, Figure 18 A～Figure 18 C is the figure of expression about the variation of the surface configuration of developer roll 510.
In addition, in the above-described embodiment, slot part 512 possesses bottom surface 514 and side 513, and the angle of inclination of side 513 is about 45 degree (with reference to Fig. 7), but is not limited to this, and for example, the angle of inclination of side 513 also can be about 90 degree.
In addition, in the above-described embodiment, this developing apparatus 51,52,53,54 can load and unload (with reference to Fig. 1) with respect to the printer main body 10a of printer 10, be set with the serviceability temperature zone at printer 10, the two of the rubber section 562 when described loss tangent tan δ is maximum all is according to the size of temperature and difference (with reference to Figure 11).Also have, the V/L1 that the translational speed V on the described surface during developer roll 510 rotation obtains divided by the spacing L1 that makes progress in week of the developer roll 510 of slot part 512 less than in the described serviceability temperature zone (specifically, 10 ℃～35 ℃) all temperature under the peak vibration number f of the described loss tangent tan δ rubber section 562 when maximum, but be not limited to this.For example, during the temperature of the part in the described serviceability temperature zone, the relation that does not satisfy above-mentioned V/L1＜f also can.
But during all temperature in described serviceability temperature zone, satisfy under the situation of relation of V/L1＜f, when printer 10 carries out image formed, rubber section 562 was necessarily used with the character of rubbery state, since this respect, more preferably above-mentioned embodiment.
In addition, in the above-described embodiment, rubber section 562 is made of thermoplastic elastomer, but is not limited to this.For example, rubber section 562 can be made of chemglaze.
In addition, in the above-described embodiment, the value V/L1 that the translational speed V on the described surface during developer roll 510 rotation obtains divided by the spacing L1 that makes progress in week of the developer roll 510 of slot part 512 is less than vibration number f2 as described below, promptly; This vibration number f2 is the frequency of the peak frequency f (vibration number) of the rubber section 562 when being maximal value less than loss tangent tan δ, when this frequency, loss tangent tan δ become described peaked half (, but be not limited to this with reference to Figure 13～Figure 15).For example, described V/L1 also can be the size between peak frequency f 1 and the frequency f 2.
But, under the situation of described V/L1 less than frequency f 2, for example, the translational speed V of developer roll 510 changes and causes the vibration number (frequency) of rubber section 562 to change, also that becomes than peak frequency f big (in other words, rubber section 562 is difficult to show the character of glassy state), therefore this vibration number (frequency), when developer roll 510 rotation suitably with the character of rubbery state use rubber section 562 aspect, more preferably above-mentioned embodiment.
In addition, printer 10 (for example is set with the serviceability temperature zone, the scope of the temperature of problem does not take place when guaranteeing to use printer 10), even but any temperature in this serviceability temperature zone is used printer 10, also preferably will be increased to long-pending first rotating speed V1 or the four rotating speed V4 of described translational speed for the rotating speed of raw material greater than described spacing and described border vibration number.
Know the variation of temperature of the value of described border vibration number, minutely change according to described rubber section 562.Thereby, according to using the value varied slightly of described border vibration number under which temperature of printer 10 in described serviceability temperature zone.Therefore, when the rotating speed with developer roll 510 is made as the rotating speed of regulation, in the temperature range of the part in described serviceability temperature zone, the rotating speed of this regulation becomes the long-pending rotating speed of described translational speed greater than described spacing and described border vibration number, in the temperature range of the part of other in described serviceability temperature zone, the rotating speed of this regulation becomes the long-pending rotating speed of described translational speed less than described spacing and described border vibration number sometimes.
Also have, even in the temperature range of the part in described serviceability temperature zone, the rotating speed of developer roll 510 is increased to long-pending first rotating speed V1 or the four rotating speed V4 of described translational speed greater than described spacing and described border vibration number, fully described effect takes place (promptly also, suitably prevent the effect of deterioration of the image quality of image), but in preferred all temperature ranges in described serviceability temperature zone, the rotating speed of developer roll 510 is increased to long-pending first rotating speed V1 or the four rotating speed V4 of described translational speed greater than described spacing and described border vibration number.
The structure of-image formation system etc.-
Secondly, use accompanying drawing, describe as the embodiment of the image formation system of an example of embodiments of the present invention.
Figure 19 is the key diagram that presentation video forms the surface structure of system.Image formation system 700 possesses: computing machine 702, display device 704, printer 706, input media 708 and reading device 710.Computing machine 702 is contained in the small-sized tower framework in the present embodiment, but is not limited to this.Cathode-ray tube (CRT)) or plasma scope or liquid crystal indicator etc. display device 704 is used CRT (Cathode Ray Tube:, but be not limited to this usually.Printer 706 uses aforesaid printer.Input media 708 uses keyboard 708A and mouse 708B in the present embodiment, but is not limited to this.Reading device 710 uses flexible display types of devices 710A and CD-ROM drive device 710B in the present embodiment, but be not limited to this, for example use MO (Magneto Optical) display driver device or DVD (Digital Versatile Disk) to wait other devices also can.
Figure 20 is the block scheme of the structure of the image formation system shown in expression Figure 19.In the framework that contains computing machine 702 and then be provided with external memory storages such as internal storages 802 such as RAM and hard disk drive units 804.
Also have, in the above description, to printer 706 and computing machine 702, display device 704, input media 708, and be connected with reading device 710 and the example of composing images formation system is illustrated, but be not limited to this.For example, image formation system comprise computing machine 702 and printer 706 also can, image formation system possess display device 704, input media 708 and reading device 710 any also can.In addition, for example, printer 706 has computing machine 702, display device 704, input media 708, the function separately that reaches reading device 710 or the part of function and also can.As an example, printer 706 has the image processing part that carries out Flame Image Process, the display part that carries out various demonstrations, and with the recording medium handling part that will write down the record image data medium loading and unloading that utilize photographies such as digital camera etc. also can.
The image formation system of Shi Xianing forms ratio superior system of system in the past as entire system like this.
Claims (30)
1. developing apparatus, possess: developer supports body, and it has the recess of configuration regularly on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, and follows this developer to support the rotation of body and vibrate, described developing apparatus is characterised in that,
The translational speed that described developer supports the described surface in body when rotation supports the vibration number of these butt parts of loss tangent that value that the spacing of the described recess that makes progress in week of body obtains obtains divided by the storage elastic modulus less than the loss elastic modulus of the described butt parts time per unit when maximum divided by this developer.
2. developing apparatus according to claim 1 is characterized in that,
Described butt parts are to be used to limit with described surperficial butt support the bed thickness limiting part of bed thickness that supports the developer of body in described developer.
3. according to the described developing apparatus of claim 1, it is characterized in that,
Described butt parts as follows with described surperficial butt, that is: the long side direction that makes described butt parts along described developer support body axially, and make an end of the short side direction of described butt parts support the sense of rotation upstream side of body towards this developer,
Described butt parts, leave from a described end on described short side direction with the abutting part of described surperficial butt.
4. developing apparatus according to claim 1 is characterized in that,
Described recess is with respect to described circumferential two kinds of different spiral helicine slot parts of angle of inclination,
These two kinds of spiral fashion slot parts intersect mutually and are lattice shape,
Described developer supports body to have: by the foursquare end face of described two kinds of spiral fashion slot parts encirclement,
One in two diagonal line that this foursquare end face has along described circumferential.
5. developing apparatus according to claim 1 is characterized in that,
This developing apparatus can load and unload with respect to the image processing system main body of image processing system,
On described image processing system, be set with the serviceability temperature zone,
The vibration number of the described butt parts of the time per unit of described loss tangent during for maximum is different according to the size of temperature,
The translational speed that described developer supports the described surface in body when rotation supports value that the spacing of the described recess that makes progress in week of body the obtains vibration number less than these butt parts under all temperature in the described serviceability temperature zone, the time per unit of described loss tangent when maximum divided by described developer.
6. developing apparatus according to claim 1 is characterized in that,
Described butt parts are made of thermoplastic elastomer.
7. developing apparatus according to claim 1 is characterized in that,
The translational speed that described developer supports the described surface in body when rotation supports value that the spacing of the described recess that makes progress in week of body obtains such as described vibration number is little down divided by this developer, that is: this vibration number is the little vibration number of vibration number of the described butt parts of the time per unit when being maximal value than described loss tangent, and when this vibration number, described loss tangent be described peaked half.
8. image processing system is characterized in that possessing:
The picture that is used to support sub-image supports body;
Be used to utilize developer will support the developing apparatus that looks like to support the image development of body in this,
Wherein, described developing apparatus possesses:
Developer supports body, and it has regularly the recess of configuration on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the vibration number of these butt parts of loss tangent that value that the spacing of the described recess that makes progress in week of body obtains obtains divided by the storage elastic modulus less than the loss elastic modulus of the described butt parts time per unit when maximum divided by this developer.
9. image formation system is characterized in that possessing:
Computing machine and the image processing system that can be connected with this computing machine,
Described image processing system possesses:
The picture that is used to support sub-image supports body;
Be used to utilize developer will support the developing apparatus that looks like to support the image development of body in this,
Wherein, described developing apparatus possesses:
Developer supports body, and it has the recess of configuration regularly on the surface, and can be to support the state rotation of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the vibration number of these butt parts of loss tangent that value that the spacing of the described recess that makes progress in week of body obtains obtains divided by the storage elastic modulus less than the loss elastic modulus of the described butt parts time per unit when maximum divided by this developer.
10. developing apparatus is characterized in that possessing:
Developer supports body, and it has regularly the recess of configuration on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of this butt parts of loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus time per unit when maximum, and make described storage elastic modulus identical less than the vibration number size of described loss elastic modulus.
11. developing apparatus according to claim 10 is characterized in that,
Described butt parts are and described surperficial butt, are used to limit support the bed thickness limiting part of bed thickness that supports the developer of body in described developer.
12. developing apparatus according to claim 10 is characterized in that,
Described recess is with respect to described circumferential two kinds of different spiral helicine slot parts of angle of inclination,
These two kinds of spiral fashion slot parts intersect mutually and are lattice shape,
Described developer supports body to have: by the foursquare end face of described two kinds of spiral fashion slot parts encirclement,
One in two diagonal line that this foursquare end face has along described circumferential.
13. an image processing system is characterized in that possessing:
The picture that is used to support sub-image supports body;
Be used to utilize developer will support the developing apparatus that looks like to support the image development of body in this,
Wherein, described developing apparatus possesses:
Developer supports body, and it has regularly the recess of configuration on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of this butt parts of loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus time per unit when maximum, and make described storage elastic modulus identical less than the vibration number size of described loss elastic modulus.
14. an image formation system is characterized in that possessing:
Computing machine and the image processing system that can be connected with this computing machine,
Described image processing system possesses:
The picture that is used to support sub-image supports body;
Be used to utilize developer will support the developing apparatus that looks like to support the image development of body in this,
Wherein, described developing apparatus possesses:
Developer supports body, and it has regularly the recess of configuration on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of this butt parts of loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus time per unit when maximum, and make described storage elastic modulus identical less than the vibration number size of described loss elastic modulus.
15. a developing apparatus is characterized in that possessing:
Developer supports body, and it has regularly the recess of configuration on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of this butt parts of loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus time per unit when maximum, and make described loss elastic modulus identical less than the vibration number size of described storage elastic modulus.
16. developing apparatus according to claim 15 is characterized in that,
Described butt parts are and described surperficial butt, are used to limit support the bed thickness limiting part of bed thickness that supports the developer of body in described developer.
17. developing apparatus according to claim 16 is characterized in that,
Described bed thickness limiting part is so that the long side direction of described bed thickness limiting part supports the axial of body along described developer, and an end that makes the short side direction of described bed thickness limiting part supports the mode of the sense of rotation upstream side of body towards this developer, with described surperficial butt
Described bed thickness limiting part, leave from a described end on described short side direction with the abutting part of described surperficial butt.
18. developing apparatus according to claim 15 is characterized in that,
Described recess is with respect to described circumferential two kinds of different spiral helicine slot parts of angle of inclination,
These two kinds of spiral helicine slot parts intersect mutually and are lattice shape,
Described developer supports body to have by described two kinds of foursquare end faces that spiral helicine slot part surrounds,
One in two diagonal line that this foursquare end face has along described circumferential.
19. an image processing system is characterized in that possessing:
The picture that is used to support sub-image supports body;
Be used to utilize developer will support the developing apparatus that looks like to support the image development of body in this,
Wherein, described developing apparatus possesses:
Developer supports body, and it has regularly the recess of configuration on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of this butt parts of loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus time per unit when maximum, and make described loss elastic modulus identical less than the vibration number size of described storage elastic modulus.
20. an image formation system is characterized in that possessing:
Computing machine and the image processing system that can be connected with this computing machine,
Described image processing system possesses:
The picture that is used to support sub-image supports body;
Be used to utilize developer will support the developing apparatus that looks like to support the image development of body in this,
Wherein, described developing apparatus possesses:
Developer supports body, and it has regularly the recess of configuration on the surface, and can rotate supporting under the state of developer;
The butt parts, it is to be made of rubber elastomer, and supports the butt parts of the described surperficial butt of body with described developer, follow this developer to support the rotation of body and vibrate,
The translational speed that described developer supports the described surface in body when rotation supports the value that the spacing of the described recess that makes progress in week of body obtains divided by this developer and is: in the little vibration number of the vibration number of this butt parts of loss tangent that the loss elastic modulus than described butt parts obtains divided by the storage elastic modulus time per unit when maximum, and make described loss elastic modulus identical less than the vibration number size of described storage elastic modulus.
21. an image processing system is characterized in that, comprising:
The picture that is used to support sub-image supports body;
Rotatable developer supports body, and it possesses regularly configuration on the surface recess is used to support developer, and utilizes and support the developer that supports body in this developer and carry out the development of described sub-image;
By the butt parts that rubber elastomer constitutes, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate;
Controller, it is after the described developer of beginning supports the rotation of body, the rotating speed that this developer is supported body is increased to first rotating speed, after the rotating speed that described developer supports body becomes described first rotating speed, the speed drop that described developer is supported body is low to moderate second rotating speed, make described developer support the development that body carries out described sub-image with this second rotating speed rotation, described first rotating speed is translational speed that this developer supports the described surface in body when rotation supports the described recess that makes progress in week of body than this developer a spacing, the long-pending big rotating speed of the vibration number of these butt parts of the time per unit of the loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts when maximum, described second rotating speed is that described translational speed is less than described long-pending rotating speed.
22. image processing system according to claim 21 is characterized in that,
Have: development bias voltage applying unit, it supports body in order to develop described sub-image to described developer and applies the development bias voltage,
Described controller is after the rotating speed that described developer supports body becomes described first rotating speed, the rotating speed that makes described developer support body becomes and described long-pending the 3rd rotating speed that equates via described translational speed from this first rotating speed, be reduced to described second rotating speed, and after the rotating speed that described developer supports body becomes described the 3rd rotating speed, utilize described development bias voltage applying unit to begin applying of described development bias voltage.
23. image processing system according to claim 22 is characterized in that,
Described controller passed through after the time as described below, utilize described development bias voltage applying unit to begin applying of described development bias voltage, this time is that the rotating speed that described developer supports body becomes after described the 3rd rotating speed, and the part of described butt parts butt is followed described developer to support the further rotation of body and moved to the time that supports the opposed position of body with described picture when supporting rotating speed in the surface of body, that described developer supports body to described developer and becoming described the 3rd rotating speed.
24. an image processing system is characterized in that, comprising:
The picture that is used to support sub-image supports body;
Rotatable developer supports body, and it possesses regularly configuration on the surface recess is used to support developer, and utilizes and support the developer that supports body in this developer and carry out the development of described sub-image;
By the butt parts that rubber elastomer constitutes, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate;
Controller, it makes the described developer with the rotation of the 5th rotating speed support the development that body carries out described sub-image, after the development of this sub-image finishes, the rotating speed that described developer is supported body is increased to the 4th rotating speed, and after the rotating speed that described developer supports body becomes described the 4th rotating speed, the rotation that makes described developer support body stops, described the 5th rotating speed is translational speed that described developer supports the described surface in body when rotation supports the described recess that makes progress in week of body than this developer a spacing, the long-pending little rotating speed of the vibration number of these butt parts of the time per unit of the loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts when maximum, described the 4th rotating speed is that described translational speed is greater than described long-pending rotating speed.
25. image processing system according to claim 24 is characterized in that,
Have: development bias voltage applying unit, it supports body in order to develop described sub-image to described developer and applies the development bias voltage,
Described controller is after the development of described sub-image finishes, the rotating speed that described developer is supported body becomes and described long-pending the 3rd rotating speed that equates via described translational speed from described the 5th rotating speed, be increased to described the 4th rotating speed, and passed through before the following time, finish to utilize applying of described development bias voltage that described development bias voltage applying unit carries out, the described time is after the rotating speed that described developer supports body becomes described the 3rd rotating speed, supports to described developer in the surface of body, the part of described butt parts butt was followed described developer to support the further rotation of body and is moved to the time that supports the opposed position of body with described picture when the rotating speed that described developer supports body became described the 3rd rotating speed.
26. image processing system according to claim 24 is characterized in that,
Have: strip parts, it contacts with the described surface that described developer supports body, and be used for supporting body and strip described developer from described developer,
Described controller is after the rotating speed that described developer supports body becomes described the 4th rotating speed, the time point that has passed through the time as described below stops described rotation afterwards, this time is after the rotating speed that described developer supports body becomes described the 3rd rotating speed, and the part of described butt parts butt is followed described developer to support the further rotation of body and moved to and the described time that strips the parts position contacting when supporting rotating speed in the surface of body, that support body at described developer to described developer and becoming described the 3rd rotating speed.
27. an image formation system is characterized in that possessing:
Computing machine and the image processing system that can be connected with this computing machine,
Wherein, described image processing system possesses:
The picture that is used to support sub-image supports body;
Rotatable developer supports body, and it possesses regularly configuration on the surface recess is used to support developer, and utilizes and support the developer that supports body in this developer and carry out the development of described sub-image;
By the butt parts that rubber elastomer constitutes, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate;
Controller, it is after the described developer of beginning supports the rotation of body, the rotating speed that this developer is supported body is increased to first rotating speed, the rotating speed that described developer supports body become described first change advance after, the speed drop that described developer is supported body is low to moderate second rotating speed, make described developer support the development that body carries out described sub-image with this second rotating speed rotation, described first rotating speed is translational speed that this developer supports the described surface in body when rotation supports the described recess that makes progress in week of body than this developer a spacing, the long-pending big rotating speed of the vibration number of these butt parts of the time per unit of the loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts when maximum, described second rotating speed is that described translational speed is less than described long-pending rotating speed.
28. an image formation system is characterized in that possessing:
Computing machine and the image processing system that can be connected with this computing machine,
Wherein, described image processing system possesses:
The picture that is used to support sub-image supports body;
Rotatable developer supports body, and it possesses regularly configuration on the surface recess is used to support developer, and utilizes and support the developer that supports body in this developer and carry out the development of described sub-image;
By the butt parts that rubber elastomer constitutes, itself and described developer support the described surperficial butt of body, and follow this developer to support the rotation of body and vibrate;
Controller, make described developer support the development that body carries out described sub-image with the rotation of the 5th rotating speed, after the development of this sub-image finishes, the rotating speed that described developer is supported body is increased to the 4th rotating speed, after the rotating speed that described developer supports body becomes described the 4th rotating speed, the rotation that makes described developer support body stops, described the 5th rotating speed is translational speed that described developer supports the described surface in body when rotation supports the described recess that makes progress in week of body than this developer a spacing, the long-pending little rotating speed of the vibration number of these butt parts of the time per unit of the loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of described butt parts when maximum, described the 4th rotating speed is that described translational speed is greater than described long-pending rotating speed.
29. an image forming method is characterized in that, comprising:
Support in developer that developer supports body supporting after picture supports developer that the sub-image of body develops and supports the rotation of body beginning to utilize, the rotating speed that this developer is supported body is increased to the step of first rotating speed, wherein, it is to possess the recess of configuration regularly on the surface that described developer supports body, and the rotatable developer that is used to support developer supports body, described first rotating speed is translational speed that this developer supports the described surface in body when rotation supports the described recess that makes progress in week of body than this developer a spacing, the long-pending big rotating speed of the vibration number of these butt parts of the time per unit the when loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of butt parts becomes maximum, described butt parts are made of rubber elastomer, are connected to described developer and support the described surface of body and follow this developer to support the rotation of body and vibrate;
After the rotating speed that described developer supports body became described first rotating speed, the speed drop that described developer is supported body was low to moderate the step of described translational speed less than described long-pending second rotating speed;
Make described developer support the step of developing that body carries out described sub-image with this second rotating speed rotation.
30. an image forming method is characterized in that, comprising:
Make developer support the step of developing that body carries out sub-image with the rotation of the 5th rotating speed, it is to possess the recess of configuration regularly on the surface that wherein said developer supports body, and the rotatable developer that is used to support developer supports body, utilization supports in this developer and supports the developer of body to supporting in developing as the described sub-image that supports body, described the 5th rotating speed is translational speed that described developer supports the described surface in body when rotation supports the described recess that makes progress in week of body than this developer a spacing, the long-pending little rotating speed of the vibration number of these butt parts of the time per unit of the loss tangent that obtains divided by the storage elastic modulus with the loss elastic modulus of butt parts when maximum, described butt parts are made of rubber elastomer, are connected to described developer and support the described surface of body and follow this developer to support the rotation of body and vibrate;
After the development of sub-image finished, the rotating speed that described developer is supported body was increased to the step of described translational speed greater than described long-pending the 4th rotating speed;
After the rotating speed that described developer supports body becomes described the 4th rotating speed, stop the step that described developer supports the rotation of body.
Applications Claiming Priority (10)
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| JP2007096603 | 2007-04-02 | ||
| JP2007-096603 | 2007-04-02 | ||
| JP2007-134101 | 2007-05-21 | ||
| JP2007134101A JP2008276147A (en) | 2007-04-02 | 2007-05-21 | Developing device, image forming apparatus, and image forming system |
| JP2007195001A JP5135933B2 (en) | 2007-07-26 | 2007-07-26 | Developing device, image forming apparatus, and image forming system |
| JP2007-195003 | 2007-07-26 | ||
| JP2007-195002 | 2007-07-26 | ||
| JP2007-195001 | 2007-07-26 | ||
| JP2007195002A JP2009031521A (en) | 2007-07-26 | 2007-07-26 | Developing device, image forming apparatus and image forming system |
| JP2007195003A JP4882901B2 (en) | 2007-07-26 | 2007-07-26 | Image forming apparatus, image forming system, and image forming method |
Publications (2)
| Publication Number | Publication Date |
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| CN101281384A CN101281384A (en) | 2008-10-08 |
| CN101281384B true CN101281384B (en) | 2011-03-30 |
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| CN2008100818081A Expired - Fee Related CN101281384B (en) | 2007-04-02 | 2008-04-02 | Developing apparatus, image forming apparatus, image forming system and image forming method |
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| JP (1) | JP2008276147A (en) |
| CN (1) | CN101281384B (en) |
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| JP5478499B2 (en) | 2008-10-27 | 2014-04-23 | 田辺三菱製薬株式会社 | Novel amide derivatives and their use as pharmaceuticals |
| JP5864932B2 (en) | 2011-07-20 | 2016-02-17 | キヤノン株式会社 | Printing apparatus, printing apparatus control method, and program |
| US11262670B2 (en) * | 2020-04-08 | 2022-03-01 | Canon Kabushiki Kaisha | Electrophotographic blade, process cartridge, and electrophotographic image forming apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0713410A (en) * | 1993-06-19 | 1995-01-17 | Ricoh Co Ltd | Developing device |
| JP2006259384A (en) * | 2005-03-17 | 2006-09-28 | Seiko Epson Corp | Developing device and image forming apparatus |
-
2007
- 2007-05-21 JP JP2007134101A patent/JP2008276147A/en not_active Withdrawn
-
2008
- 2008-04-02 CN CN2008100818081A patent/CN101281384B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JP2008276147A (en) | 2008-11-13 |
| CN101281384A (en) | 2008-10-08 |
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