CN100555105C - Display and image processing system - Google Patents
Display and image processing system Download PDFInfo
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- CN100555105C CN100555105C CNB2006100681431A CN200610068143A CN100555105C CN 100555105 C CN100555105 C CN 100555105C CN B2006100681431 A CNB2006100681431 A CN B2006100681431A CN 200610068143 A CN200610068143 A CN 200610068143A CN 100555105 C CN100555105 C CN 100555105C
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Abstract
本发明是提供一种显像装置和一种图像形成装置。在这些装置中，粘附在显像刮板上的色粉量通常为一定值、并使得显像辊上的色粉层的厚度通常呈稳定状、而且能够进行浓度均匀的打印。本发明的显像装置具有一个存放显像剂的显像剂存放部；一个通过旋转把被所述的显像剂存放部所存放的所述的显像剂供给图像载体的显像构件；一个把在所述的显像构件的表面上的所述的显像剂刮削下来并形成显像剂层的显像剂层形成构件；和一个安装在沿所述的显像构件的旋转方向比所述的显像剂层形成构件与所述的显像构件的接触部更上游侧用于限制所述的显像剂的流动性的限制构件。
The present invention provides a developing device and an image forming device. In these devices, the amount of toner adhering to the developing blade is usually constant so that the thickness of the toner layer on the developing roller is usually stabilized and printing with uniform density can be performed. The developing device of the present invention has a developer storage portion for storing a developer; a developing member for supplying the developer stored in the developer storage portion to an image carrier by rotation; a developing agent layer forming member for scraping off said developing agent on the surface of said developing member and forming a developing agent layer; A restricting member for restricting the fluidity of the developer on the upstream side of the contact portion between the developer layer forming member and the developing member.
Description
Technical field
The invention relates to the display and the image processing system that use the electrostatic latent image that the developer video picture forms on image carrier surface.
Background technology
In the past, the video picture scraper plate that limits the toner amount on the developing roll was that top ends by the tabular elastic material of bending forms.The section configuration of this top ends is the L font.(for example :) with reference to patent documentation 1., press on developing roll by making this crooked lateral surface for this reason, and the unnecessary toner on the scraping developing roll and form the toner layer.
Patent documentation 1 (the Japan special permission Room: the spy opens flat 7-084452 communique).
Yet the video picture scraper plate that described patent documentation 1 is put down in writing makes toner adhere in the above unevenly along the direction of principal axis of developing roll, thereby, on the video picture scraper plate, formed many place and the few places of toner adhesive capacity of toner adhesive capacity.When the contact site of toner by video picture scraper plate and developing roll,, on developing roll, produced the place that the toner quantitative change is many or tail off corresponding to the toner adhesive capacity on the video picture scraper plate many place and the few place of toner adhesive capacity.Therefore, the even situation of vertical banded density unevenness can take place when printing.
Summary of the invention:
Therefore, the present invention is in view of above-mentioned present situation, and a kind of display and a kind of image processing system are provided.In these devices, the toner amount on the video picture scraper plate of sticking to is generally certain value and makes the thickness of the toner layer on the developing roll be stable shape usually and can carry out concentration and print uniformly.
The invention provides a kind of display, it is characterized in that, this display has a developer storage part of depositing developer; One by rotating the video picture member that is rasterized the stored developer supply of agent storage part image-carrier; A handle is scraped the developer layer that chips away and form the developer layer at the lip-deep developer of video picture member and is formed member; With one be installed in form member and video picture member than developer layer along the sense of rotation of video picture member contact site more upstream side be used to limit the limiting member of the flowability of developer.
In addition, in display of the present invention, can have one to be characterised in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is contained on the curved tabs at the sense of rotation upstream side of video picture member bondedly.
In addition, in display of the present invention, can have one it is characterized in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is to be made by tabular resilient material, this limiting member with the video picture member not contact side and developer layer curved tabs one end that forms member contact, and be contained in the sense of rotation upstream side of video picture member with extending.
In addition, in display of the present invention, can have one it is characterized in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is that crooked tabular resilient material is made, when forming certain space between the curved end of limiting member and developer layer form the curved tabs of member, curved end is relative with curved tabs and put.
In addition, in display of the present invention, can have one it is characterized in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is that crooked tabular resilient material is made, and the curved end of limiting member overlaps the upstream side that contacts in the sense of rotation of video picture member with the curved tabs that the developer layer forms member.
Further, the present invention also provides a kind of display, it is characterized in that, has a developer storage part of depositing developer; One by rotating the video picture member that is rasterized the stored developer supply of agent storage part image-carrier; With a handle the lip-deep developer of video picture member scrape chip away and form the developer layer in, the developer layer of the flowability of restriction developer forms member.
In addition, in display of the present invention, can have one it is characterized in that: the developer layer forms member and has one and the contacted contact site of video picture member and a restrictions that limits the flowability of developer.In this case, can also have one it is characterized in that: the developer layer form member have one near contact site along the crooked laterally curved tabs that forms by tabular resilient material of the radial direction of video picture member, restrictions is by forming along the inside reflexed curved tabs of the radial direction of video picture member.
Further, the present invention also provides a kind of image processing system, it is characterized in that, has a charged image carrier surface of exposure and forms the exposure portion of electrostatic latent image; With one make on the electrostatic latent image that developer sticks to and formed by exposure portion and make the developer that is formed as the imaging division of transfer printing on medium.This imaging division has; A developer storage part of depositing developer; One by rotating the video picture member that is rasterized the stored developer supply of agent storage part image-carrier; The developer of a handle on the video picture component surface scraped the developer layer that chips away and form the developer layer and formed member; With one be installed in form member and video picture member than developer layer along the sense of rotation of video picture member contact site more upstream side be used to limit the limiting member of the flowability of developer.
In addition, in image processing system of the present invention, can have one to be characterised in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is contained on the curved tabs at the sense of rotation upstream side of video picture member bondedly.
In addition, in image processing system of the present invention, can have one to be characterised in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is to be made by tabular resilient material, limiting member with the video picture member not contact side and developer layer curved tabs one end that forms member contact, and be contained in the sense of rotation upstream side of video picture member with extending.
In addition, in image processing system of the present invention, can have one to be characterised in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is that crooked tabular resilient material is made, when forming certain space between the curved end of limiting member and developer layer form the curved tabs of member, curved end is relative with curved tabs and put.
In addition, in image processing system of the present invention, can have one to be characterised in that: the developer layer form member have one near contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of video picture member, limiting member is that crooked tabular resilient material is made, and the curved end of limiting member overlaps the upstream side that contacts in the sense of rotation of video picture member with the curved tabs that the developer layer forms member.
Further, the present invention also provides a kind of image processing system, it is characterized in that, has a charged image carrier surface of exposure and forms the exposure portion of electrostatic latent image; With one make on the electrostatic latent image that developer sticks to and formed by exposure portion and make the developer that is formed as the imaging division of transfer printing on medium.This imaging division has: a developer storage part of depositing developer; One by rotating the video picture member that is rasterized the stored developer supply of agent storage part image-carrier; With one on scraping video picture component surface developer and form the developer layer in, the developer layer of restriction developer flowability forms the imaging division of member.
In addition, in image processing system of the present invention, can have one to be characterised in that: the developer layer forms member and has one and the contacted contact site of video picture member; With a restrictions that limits the flowability of developer.
In addition, in image processing system of the present invention, can have one to be characterised in that: the developer layer form member have one near contact site along the crooked laterally curved tabs that forms by tabular resilient material of the radial direction of video picture member, restrictions is by forming along the inside reflexed curved tabs of the radial direction of video picture member.
The invention effect:
According to display of the present invention, because reduced the flowability of developer, and make the pressure that forms on the member at the developer layer become almost certain in the longitudinal direction, so just can make the thickness of bisque of the phenomenon agent that is formed keep usually stablizing, thereby obtain the uniform high image quality printing of concentration.
According to image processing system of the present invention, because reduced the flowability of developer, and make the pressure that forms on the member at the developer layer become almost certain in the longitudinal direction, so just can make the photographic developer that is formed bisque thickness usually maintenance stablize, be formed on paper vertically on do not produce the developer bisque of the even phenomenon of density unevenness, thereby obtain the uniform high image quality of concentration and print.
Description of drawings
Fig. 1 shows the sectional view that constitutes display of the present invention;
Fig. 2 shows the video picture scraper plate of the display in the embodiments of the present invention one and the sectional view of developing roll shape;
Fig. 3 is the profile that shows the contact site of the video picture scraper plate of the display in the embodiments of the present invention one and developing roll;
Fig. 4 shows the video picture scraper plate of the display in the embodiments of the present invention one and the figure of developing roll;
Fig. 5 is the profile of the C-C section of the video picture scraper plate of the display seen from arrow a direction according to Fig. 4 and developing roll;
Fig. 6 shows the video picture scraper plate that limiting member is not housed and the figure of developing roll;
Fig. 7 is the profile of the A-A section of the video picture scraper plate of the display seen from arrow a direction according to Fig. 6 and developing roll;
Fig. 8 is the profile of the B-B section of the video picture scraper plate of the display seen from arrow a direction according to Fig. 6 and developing roll;
Fig. 9 shows the video picture scraper plate of the display in the embodiments of the present invention two and the strip log of video picture roll forming;
Figure 10 is the figure of shape that shows the video picture scraper plate of the display in the embodiments of the present invention two;
Figure 11 is the profile that shows the contact site of the video picture scraper plate of the display in the embodiments of the present invention two and developing roll;
Figure 12 shows the video picture scraper plate of the display in the embodiments of the present invention three and the sectional view of developing roll shape;
Figure 13 is the figure of shape that shows the video picture scraper plate of the display in the embodiments of the present invention three;
Figure 14 is the profile that shows the contact site of the video picture scraper plate of the display in the embodiments of the present invention three and developing roll;
Figure 15 is the figure that is equipped in the limiting member on the display that shows in the enforcement real mode four of the present invention;
Figure 16 shows the video picture scraper plate of the display in the embodiments of the present invention five and the sectional view of developing roll shape;
Figure 17 is the profile that shows the contact site of the video picture scraper plate of the display in the embodiments of the present invention five and developing roll;
Figure 18 constitutes the video picture scraper plate of the display in the embodiments of the present invention five and the figure of developing roll;
Figure 19 is the profile of the D-D section of the video picture scraper plate seen from arrow a direction according to Figure 18 and developing roll;
Figure 20 is the pie graph of explanation image processing system of the present invention.
Embodiment
Below, illustrate about image processing apparatus of the present invention with reference to drawing.In addition, display of the present invention is not only limited to the embodiment of the following stated, can suitably change in not breaking away from aim scope of the present invention.
[embodiment one]
Fig. 1 is the sectional view that shows display of the present invention.Display of the present invention with embodiment one explanation has: as the photosensitive drums 1 (drum) of image-carrier; Developing roll 3 as the video picture member; Donor rollers 4 forms the video picture scraper plate (blade) 5 of member as the developer layer; Scrape board bracket (blade holder) 6; Framework (frame) 7; Charged roller 8; Cleaning balde (cleaning blade) 9; Stationary shaft (shaft) 10; Toner (toner) 11 as developer; Toner cartridge 12 as the developer storage part; Toner groove 13.
Developing roll 3 is to be made by the rubber of the semiconduction of outsourcing silicon (silicon) on the metal shaft of electric conductivity etc.Developing roll 3 contacts the surface of photosensitive drums 1 under certain pressure, and freely is fixed on the framework 7 by axle along direction of arrow rotation.This developing roll 3 by add supply fixed positive voltage or negative voltage, the electrostatic latent image that is formed on the surface of photosensitive drums 1 is come video picture by toner 11.At this moment, developing roll 3 is supplied with photosensitive drums 1 to toner 11 because of the cause of rotation.
Charged roller 8 is to be made by the rubber of the semiconduction of outsourcing epichlorokydrin (epichlorohydrin) rubber on the metal shaft of electric conductivity etc.This charged roller 8 is installed in the rotation upstream side of more going up than developing roll 3 with respect to photosensitive drums 1, and under certain pressure, the surface of contact photosensitive drums 1 freely is fixed on the framework 7 with photosensitive drums 1 equidirectional the rotation along the arrow C direction.This charged roller 8 by photosensitive drums 1 added supplied fixed positive voltage or negative voltage, make photosensitive drums 1 charged.In addition, when implement printing action, charged roller 8, all added as roller 3 and donor rollers 4 and to have been supplied negative voltage.
In addition, cleaning balde 9 be by fixed elastomeric material make.This cleaning balde 9 is installed in the rotation upstream side of charged roller 8 with respect to photosensitive drums 1, an end under certain pressure, the surface of contact photosensitive drums 1, and the other end is fixed on the framework 7.This cleaning balde 9 is scraped the lip-deep toner 11 that remains in photosensitive drums 1 and is chipped away, with cleaning photosensitive drums 1.
Above photosensitive drums 1, disposed and to have made the exposure portion that on the figure of the surface of photosensitive drums 1 formation electrostatic latent image, does not have expression.Exposure portion is radiated at the direction of the light of corresponding image signals by arrow E on the surface of photosensitive drums 1, forms electrostatic latent image on this photosensitive drums 1.It can be as such exposure portion, and for example (combination of Selfoc Lens Array can be a laser (laser) and do the image optical system combination, also can be any suitable parts for LED (Light Emitting Diode) arrangement and SLA.
Video picture scraper plate 5 is to be made by the plate-like elastic material of the same thickness of for example tabular stainless steel (stainless) etc.This video picture scraper plate 5 is installed in than the contact site of developing roll 3 and the photosensitive drums 1 rotation upstream side of the developing roll 3 of front more, with respect to the rotation downstream of developing roll 3 individual contact angle θ is arranged, and this contact angle θ is acute angle.One end of this video picture scraper plate 5 is touched the surface that is pressed in developing roll 3, and the other end is fixed on the framework 7 by scraping board bracket 6.These video picture scraper plate 5 scrapings are supplied with the toner on the surface of developing rolls 3 from donor rollers 4, limit the thickness of layer of the toner 11 on the surface that is formed on developing roll 3.
As shown in Figure 2, press on video picture scraper plate 5 an and end that developing roll 3 contacts of developing roll 3, that section shape is the L font and be formed along the crooked laterally curved tabs 5a of the radial direction of developing roll 3.This video picture scraper plate 5 that is bent to this L font for developing roll 3 contacted positions on the waveform percussion does not take place, and guaranteed to add for certain pressure.And this video picture scraper plate 5 is smooth state with the crooked outer surface that developing roll 3 directly contacts through measures such as grindings.On this curved tabs 5a top ends, section shape is the rotation upstream side that rectangular limiting member 20 is bonded in developing roll 3, that is: by developing roll 3, curved tabs 5a and limiting member 20, make the mobile low of toner 11, and form the mobile low lower area T1 of toner.
The action of relevant display of the present invention in embodiment one below is described with Fig. 1, Fig. 3, Fig. 4 and Fig. 5.Do not have the CD-ROM drive motor and the electric power loop of expression to be driven in figure, developing roll 3 and donor rollers 4 will be respectively along the direction rotations of arrow P, arrow B, and the toner 11 in the toner groove 13 is supplied with developing roll 3 by donor rollers 4.The toner 11 that is supplied to developing roll 3 passes through the toner layer formation portion S1 of the rotation arrival of developing roll 3 as the contact site of developing roll 3 and video picture scraper plate 5.
On the video picture scraper plate 5 that is equipped on the display, the limiting member 20 of the flowability of restriction toner 11 is bonded.Because of this limiting member 20 is bonded on the video picture scraper plate 5, make the mobile low of toner 11, toner 11 stay easily in the mobile low lower area T1 of toner.
As shown in Figure 3, by carrying toner 11, the toner in the mobile low lower area T1 of toner is the state that is full of.Therefore, on the toner layer formation S1 of portion, add the pressure of confession, concerning the length direction of video picture scraper plate 5 Anywhere all be certain.So, just can be at the layer of the surface of developing roll 3 formation stable toner 11.
At this moment, as shown in Figure 4, be rasterized scraper plate and scrape the residue toner 11 that chips away and stick near the toner layer formation S1 of portion as the contact site of curved tabs 5a and developing roll 3.Even in this case, as shown in Figure 5,, can make the toner flowability hang down in the lower area T1 and be filled at once owing to do not stick to the existence of the toner 11 of video picture scraper plate 5.In this state, stick to the toner 11 on the video picture scraper plate 5, because the place of not fleeing from, even the power of the toner that is transported 11 can not peel off yet.That is: the length direction of video picture scraper plate 5 almost be certain in the voltage supply power that adds of the toner layer formation S1 of portion Anywhere, just can form the layer of stable toner 11 on the surface of developing roll 3.
In addition, under the state in toner is not full of the mobile low lower area T1 of toner, by the power of the toner that does not stick to video picture scraper plate 5 11 that transports, the toner 11 that generally sticks on the video picture scraper plate 5 can peel off.Even in this case, the toner 11 that peels off is owing to there is the existence of this limiting member 20 just to stay in the mobile low lower area T1 of toner, and the toner 11 on not sticking to video picture scraper plate 5 is filled in the mobile low lower area T1 of toner.Therefore, on the toner layer formation S1 of portion, add the pressure of confession, concerning the length direction of video picture scraper plate 5 Anywhere all be certain.So, just can be at the layer of the surface of developing roll 3 formation stable toner 11.
In addition, stick to the toner 11 on the video picture scraper plate 5, even the length direction of video picture scraper plate 5 is inhomogeneous relatively, also because have described limiting member 20, so, in the mobile low lower area T1 of toner, be equal state at the toner Anywhere 11 on the length direction of video picture scraper plate 5, therefore, can form the layer of stable toner 11 on the surface of developing roll 3.
Like this, in the toner layer formation S1 of portion, for the toner 11 that is supplied to developing roll 3, as shown in Figure 3, by having the unnecessary toner 11 of video picture scraper plate 5 scrapings of limiting member 20, the thickness of the layer of the toner 11 that is formed on the surface of developing roll 3 is restricted to definite value.At the toner 11 of surperficial limited certain bed thickness of this developing roll 3, along with the rotation of developing roll 3 is transported on the photosensitive drums 1.On the other hand, photosensitive drums 1 is passed through charged roller 8 keeps homogeneous on the surface current potential, then, and by scheming to go up the exposure formation electrostatic latent image of the exposure portion that does not have demonstration.Then, toner 11 feasible photosensitive drums 1 video pictures that are formed electrostatic latent image by sticking to developing roll 3 surfaces.
Here, as a comparative example, illustrate with Fig. 6, Fig. 7, Fig. 8 relevant when using the occasion of the video picture scraper plate 99 of member 20 without limits, the formation of the layer of toner 11 on developing roll 3.As shown in Figure 6, even this video picture scraper plate 99 is arranged, also can be sticked near the toner layer formation portion as the contact site of curved tabs 99a and developing roll 3 by the unnecessary toner 11 of scraping.
Fig. 7 is near the many X zones of the adhesive capacity that shows toner 11 and at the A-A place section of Fig. 6 and the sectional view of seeing from arrow a direction.In this X zone, the toner 11 that sticks on the video picture scraper plate 99 is a lot, and being transferred the toner 11 that comes can be just narrow and small by the regional δ 1 of video picture scraper plate 99.Therefore, enter regional δ 1 toner 11 amount just seldom.And on this video picture scraper plate 99, because member 20 without limits, toner 11 stays difficulty, and many toners 11 are along the curved tabs 99a of the video picture scraper plate 99 outer side shifting to the radial direction of developing roll 3.Therefore, the added pressure of bisque formation portion of checking colors becomes very little, and the amount of the toner 11 by video picture scraper plate 99 also becomes seldom.
Fig. 8 is near the B-B place section few Y zone of the adhesive capacity that shows toner 11 and in Fig. 6 and the sectional view seen from arrow a direction.In this Y zone, stick on the video picture scraper plate 99 toner 11 seldom, being transferred the toner 11 that comes can be just very big by the regional δ 2 of video picture scraper plate 99.Therefore, it is just a lot of to enter the amount of toner 11 of regional δ 2.Therefore, the added pressure of bisque formation portion of checking colors becomes very big, and the amount of the toner 11 by video picture scraper plate 99 also becomes a lot.
Secondly, stick to the toner 11 on the video picture scraper plate 99,, be subjected to the power to curved tabs 99a direction from toner layer formation portion by the toner 11 that transports from developing roll 3.Because this power makes that the toner 11 that sticks on the video picture scraper plate 99 can be peeled off.In addition, can make also that on the contrary toner 11 sticks on the video picture scraper plate 99.Therefore, the toner 11 that sticks on the video picture scraper plate 99 is variable condition with elapsed time.
That is: as shown in Figures 7 and 8, because stick to the adhesive capacity difference of the toner 11 of the length direction on the video picture scraper plate 99, regional δ 1 or regional δ 2 are the same, and toner 11 can be also different by the zone of video picture scraper plate 99.Therefore, with respect to the length direction of video picture scraper plate 99, the pressure of the toner 11 that is transported to toner layer formation portion is become inhomogeneous, so the layer of the toner 11 that is formed has thick place that thin place is arranged, it is even to produce vertically banded density unevenness.In addition, because stick to toner 11 variation of intersexuality sometimes on this video picture scraper plate 99, also change with elapsed time so density unevenness is even.
Therefore, display of the present invention is because be equipped with limiting member 20 on video picture scraper plate 5, make that the flowability of toner 11 is low, the length direction of relative video picture scraper plate 5, the pressure of the bisque formation S1 of portion almost is certain because check colors, just can make the toner 11 that is formed layer thickness be steady state (SS) usually, therefore, can access the uniform high image quality printing of concentration.
[embodiment two]
The limiting member that is equipped with on the video picture scraper plate that is used in display of the present invention not only is the limiting member 20 in embodiment one.In embodiment two, with reference to drawing illustrate about be equipped with on the video picture scraper plate 5 and video picture scraper plate 5 at embodiment one on the display of the limiting member 20 difform limiting members 40 that are equipped with.In addition, for embodiment one in the member that repeats, give same sequence number and omit its explanation.
As shown in Figure 9, the display with embodiment two explanations has substituted the video picture scraper plate 5 that has in embodiment one; Limiting member 20 and scrape board bracket 6 has: video picture scraper plate 5; Limiting member 40 and scrape board bracket 41.
Slightly identical in video picture scraper plate 5 and the embodiment one.On this video picture scraper plate, limiting member 40 is housed.This limiting member 40 is made by tabular resilient material, with developing roll 3 contact side not, with the end in contact of the curved tabs 5a of video picture scraper plate 5, and extend along the sense of rotation (arrow P direction) of developing roll 3 from the end of this curved tabs 5a and to cover on the video picture scraper plate 5.So just can fully guarantee the contact pressure of developing roll 3 and video picture scraper plate 5.
As shown in figure 10, this video picture scraper plate 5 and limiting member 40 are fixed on the framework 7 by scraping board bracket 41.This scrapes board bracket 41 is to be formed by two members can holding video picture scraper plate 5 and limiting member 40 under the arm, and available bolt is fixed in deciding place.As Fig. 9 and shown in Figure 10, this scrape board bracket 41 an end of the video picture scraper plate 5 that does not have curved tabs 5a and with an end of the discontiguous limiting member 40 of curved tabs 5a on, hold video picture scraper plate 5 and limiting member 40 under the arm from the outside, and fixing together by bolt.The board bracket 41 of scraping of holding video picture scraper plate 5 and limiting member 40 under the arm is fixed on the framework 7.At this moment, the bend on video picture scraper plate 5, contact developing roll 3 under certain pressure.Because like this, developing roll 3, curved tabs 5a and limiting member 40 make the flowability of toner 11 reduce, and form the mobile low lower area T2 of toner.
Below, with Fig. 9 and Figure 11 the relevant action of display of the present invention in embodiment two is described, identical with embodiment one, in figure, there are not the CD-ROM drive motor and the electric power loop of expression to be driven, developing roll 3 can be along the direction rotation of arrow P, and the toner 11 in the toner groove 13 is supplied with developing roll 3 by donor rollers 4.The toner 11 that is supplied to developing roll 3 is by the toner layer formation portion S2 of developing roll 3 rotation arrival as the contact site of developing roll 3 and video picture scraper plate 5.
Be equipped on the video picture scraper plate 5 that display loads onto, the limiting member 40 of restriction toner 11 flowabilities is being housed.Because this limiting member 40 contacts with the top ends of the curved tabs 5a of video picture scraper plate 5, a upstream side that is contained in the sense of rotation (arrow P direction) of developing roll 3 from this curved tabs 5a with extending, so that toner 11 mobile low, during toner is stayed in the mobile low lower area T2 of toner easily.
And, along with developing roll 3 along the rotation of the direction of arrow P, be transferred the toner 11 that comes in the mobile low lower area T2 of toner and piling up and be full state.Therefore, toner 11 is transferred unnecessary toner 11 extruding that come and peels off from curved tabs 5a.Limiting member 40 is because across whole length direction, and when the thin layer of toner 11 formed, toner 11 normally was coherent condition in the longitudinal direction.At this moment, irrelevant with the amount of toner 11 in the toner groove 13, toner 11 is coherent condition usually, thereby can form the layer of uniform toner 11 on the surface of developing roll 3.
Therefore, display of the present invention because limiting member 40 as the top ends of the curved tabs 5a that covers video picture scraper plate 5 is housed, can be guaranteed the contact pressure of developing roll 3 and video picture scraper plate 5 fully.And, display of the present invention, in order to make the mobile low of toner 11, the length direction of video picture scraper plate 5 because the pressure of the bisque formation S2 of portion that checks colors almost is the same, can be stablized the thickness of the layer of the toner 11 that is formed usually relatively.Therefore, can access the uniform high image quality of concentration prints.
[embodiment three]
In embodiment three, with reference to drawing illustrate about be contained on the video picture scraper plate 5 and the video picture scraper plate 5 of embodiment two on the display of the limiting member 40 difform limiting members 50 that are equipped with.In addition, the member with repeating in the embodiment two gives same sequence number and omits its explanation.
As shown in figure 12, the display of explanation has substituted the limiting member 40 that has in embodiment two in embodiment three, has: limiting member 50.
On the video picture scraper plate 5 that with embodiment three illustrate slightly identical, limiting member 50 is housed with embodiment two.This limiting member 50 is made by tabular resilient material, is bent not scraped the fixing ends of board bracket 41, and forms curved tabs 50a.And the curved tabs 5a of the curved end 50a of limiting member 50 and video picture scraper plate 5 is relative and put.And between curved tabs 5a and curved end 50a, form certain space.That is: video picture scraper plate 5 and limiting member 50 are the state of relative coincidence, but the top of the top of curved tabs 5a and curved end 50a be relative to state, at this moment, by limiting the length of curved end 50a, make the top of curved end 50a of limiting member 50 not contact with developing roll 3.That is: above limiting member 40 is installed in as the top of the curved tabs 5a that covers video picture scraper plate 5.Therefore, can fully guarantee the contact pressure of developing roll 3 and video picture scraper plate 5.
As shown in figure 13, this video picture scraper plate 5 and limiting member 50 are fixed on the framework 7 by scraping board bracket 41.This scrapes board bracket 41 is to be formed by two members can holding video picture scraper plate 5 and limiting member 40 under the arm, and available bolt fixed place fix.As Figure 12 and shown in Figure 13, this scrapes board bracket 41 on an end of end of the video picture scraper plate 5 that does not have curved tabs 5a and the discontiguous limiting member 40 of curved end 50a, holds video picture scraper plate 5 and limiting member 50 under the arm from the outside, and fixing together by bolt.The board bracket 41 of scraping of holding video picture scraper plate 5 and limiting member 50 under the arm is fixed on the framework 7.At this moment, the bend on video picture scraper plate 5, contact developing roll 3 under certain pressure.Because like this, by between developing roll 3, curved tabs 5a and curved end 50a, being provided with the space, form the mobile low lower area T3 of the mobile low toner that makes toner 11.
Below, the action of relevant display of the present invention in embodiment three is described with Figure 12 and Figure 14, identical with embodiment two, in figure, there are not the CD-ROM drive motor and the electric power loop of expression to be driven, developing roll 3 can be along the direction rotation of arrow P, and the toner 11 in the toner groove 13 is supplied with developing roll 3 by donor rollers 4.The toner 11 that is supplied to developing roll 3 passes through the toner layer formation portion S3 of the rotation arrival of developing roll 3 as the contact site of developing roll 3 and video picture scraper plate 5.
On the video picture scraper plate 5 that is equipped on the display, the limiting member 50 of the flowability of restriction toner 11 is housed.Because form certain space between the curved tabs 5a of the curved end 50a of this limiting member 50 and video picture scraper plate 5, make the mobile low of toner 11, toner 11 stay easily in the mobile low lower area T3 of toner.
And, along with developing roll 3 along arrow P direction rotation, be transferred the toner 11 that comes in the mobile low lower area T3 of toner and piling up and be the state that is full of.Therefore, toner 11 is transferred unnecessary toner 11 extruding that come and is upward peeled off from curved tabs 5a.Limiting member 50 is because across whole length direction, and when the thin layer of toner 11 formed, toner 11 normally was coherent condition in the longitudinal direction.At this moment, irrelevant with the amount of toner 11 in the toner groove 13, toner 11 is coherent condition usually, thereby can form all the layer of toner 11 uniformly on the surface of developing roll 3.In addition, because between curved tabs 5a and curved end 50a, be provided with certain space, usually can remain on as the toner adhesive capacity among the mobile low lower area T3 of the toner of the retaining zone of toner, can form the layer of toner 11 more uniformly on the surface of developing roll 3.
Therefore, display of the present invention because limiting member 50 as the top ends of the curved tabs 5a that covers video picture scraper plate 5 is housed, can be guaranteed the contact pressure of developing roll 3 and video picture scraper plate 5 fully.And, display of the present invention, in order to make the mobile low of toner 11, the length direction of video picture scraper plate 5 relatively because the pressure of the bisque formation S3 of portion that checks colors almost is certain, just can make the toner 11 that is formed layer thickness be usually steady state (SS)+.Therefore, can access the uniform high image quality of concentration prints.
[embodiment four]
In embodiment four, have: contact and be contained in the curved end 50a of the limiting member 50 on the video picture scraper plate 5 in the embodiment three with the curved tabs 5a of video picture scraper plate 5.With reference to Figure 15 the relevant display that this video picture scraper plate 5 and limiting member 50 are housed is described.In addition, for embodiment three in the member that repeats, give same sequence number and omit its explanation.
As shown in figure 15, limiting member 50 and embodiment three is identical.This end is bent to the curved end 50a of the limiting member 50 of L word shape, and 3 the direction along this termination towards developing roll contacts with the rotation upstream side of the developing roll 3 of the curved tabs 5a of described video picture scraper plate 5, is installed on the video picture scraper plate 5 with overlapping.This video picture scraper plate 5 is identical with embodiment three with limiting member 50, holds video picture scraper plate 5 and limiting member 50 under the arm by scraping board bracket 41, and fixing together by bolt.The board bracket 41 of scraping of holding video picture scraper plate 5 and limiting member 50 under the arm is fixed on the framework 7.At this moment, the bend on video picture scraper plate 5, contact developing roll 3 under certain pressure.Because like this, by be provided with certain space between developing roll 3, curved tabs 5a and curved end 50a, formation makes the mobile low toner flowability of toner 11 hang down lower area T4.
Even such limiting member 50 is housed, also identical with embodiment three, developing roll 3 and curved tabs 51a form the mobile low lower area T4 of the mobile low toner that makes toner 11 by limiting member 50.Because like this, toner 11 is stayed among the mobile low lower area T4 of toner easily, can form the layer with described same stable toner 11 on the surface of developing roll 3.
And, because limiting member 21 is the state that covers above the video picture scraper plate 5, the upside of video picture scraper plate 5 can adhere to toner 11 or can prevent to flow into toner 11, therefore, can use toner 11 effectively.
[embodiment five]
With the display of embodiments of the present invention explanations, with explanation in embodiment one be installed in the variform of video picture scraper plate 5 on the display.Below, just relevant this display describes, and the member with repeating in the embodiment one gives same sequence number and omits its explanation.
Display of the present invention with embodiment five explanations has: as the photosensitive drums 1 of image-carrier; Developing roll 3 as the video picture member; Donor rollers 4; Form the video picture scraper plate 30 of member as the developer layer; Scrape board bracket 6; Framework 7; Charged roller 8; Clearer 9; Stationary shaft 10; Toner 11 as developer; Toner cartridge 12 as the developer storage part; Toner groove 13.
Video picture scraper plate 30 is to be made by the plate-like elastic material of the same thickness of for example tabular stainless steel etc.This video picture scraper plate 30 is installed in than the contact site of developing roll 3 and the photosensitive drums 1 rotation upstream side more of the developing roll 3 of front more, with respect to the rotation downstream of developing roll 3 individual contact angle 9 is arranged, and this contact angle θ is acute angle.One end of this video picture scraper plate 30 is touched the surface that is pressed in developing roll 3, and the other end is fixed on the framework 7 by scraping board bracket 6.These video picture scraper plate 30 scrapings are supplied with the toner on the surface of developing rolls 3 from donor rollers 4, limit the thickness of layer of the toner 11 on the surface that is formed on developing roll 3.
As shown in figure 16, press on video picture scraper plate 30 an and end that developing roll 3 contacts of developing roll 3, that section shape is the L font and be formed along the crooked laterally curved tabs 30a of the radial direction of developing roll 3.Further, make the radial direction of this curved tabs 30a,, the end of curved tabs 30a is overlapped reflexed, form limiting member 30b at the rotation upstream side of developing roll 3 along developing roll 3.That is: developing roll 3 and curved tabs 30a make that by limiting member 30b the flowability of toner 11 is low, and form the mobile low region S 5 of toner.
Below, the action of relevant display of the present invention is described with Figure 16, Figure 17, Figure 18 and Figure 19.Do not have the CD-ROM drive motor and the electric power loop of expression to be driven in figure, developing roll 3 and donor rollers 4 will be respectively along the direction rotations of arrow P, arrow B, and the toner 11 in the toner groove 13 is supplied with developing roll 3 by donor rollers 4.The toner 11 that is supplied to developing roll 3 passes through the toner layer formation portion S5 of the rotation arrival of developing roll 3 as the contact site of developing roll 3 and video picture scraper plate 30.
Be equipped on the video picture scraper plate 30 of display, the limiting member 30b of the flowability of restriction toner 11 is housed, because on video picture scraper plate 30, this limiting member 30b is housed, make the mobile low of toner 11, toner stay easily in the mobile low lower area T5 of toner.
As shown in figure 17, by the toner of carrying 11, the toner in the mobile low lower area T5 of toner is the state that is full of.Therefore, on the toner layer formation S5 of portion, add the pressure of confession, concerning the length direction of video picture scraper plate 30 Anywhere all be certain.So, just can be at the layer of the surface of developing roll 3 formation stable toner 11.
At this moment, as shown in figure 18, be rasterized scraper plate 30 and scrape the unnecessary toner 11 that chips away, stick to as near the toner layer formation S5 of portion of the contact site of curved tabs 30a and developing roll 3.Even under this occasion, right in the existence of the toner 11 that does not stick to video picture scraper plate 30 as shown in figure 19, can make the toner flowability hang down in the lower area T5 and be filled at once.In this state, stick to the toner 11 of video picture scraper plate 30, because the place of not fleeing from, even the power of the toner that is transported 11 does not peel off yet.That is: the bisque formation S5 of portion that checks colors Anywhere at the length direction of video picture scraper plate 30 slightly increases certain pressure, just can form the layer of stable toner 11 on the surface of developing roll 3.
Secondly, under the state in toner 11 is not full of the mobile low lower area T5 of toner, by the power that does not stick to the toner 11 on the video picture scraper plate 30 that transports, the toner 11 that generally sticks on the video picture scraper plate 30 can peel off.Even in this case, the toner 11 that peels off has been stayed owing to the existence that this limiting member 30b is arranged makes in the mobile low lower area T5 of toner, and the toner on not sticking to video picture scraper plate 30 is filled in the mobile low lower area T5 of toner.Therefore, on the toner layer formation S5 of portion, add the pressure of confession, concerning the length direction of video picture scraper plate 30 Anywhere all be certain.So, just can be at the layer of the surface of developing roll 3 formation stable toner 11.
Once more, stick to the toner 11 of video picture scraper plate 30, even the length direction of video picture scraper plate 30 is inhomogeneous relatively, also because have described limiting member 30b, so in the mobile low lower area T5 of toner, be equal state at the toner Anywhere 11 on the length direction of video picture scraper plate 30, therefore can form the layer of stable toner 11 on the surface of developing roll 3.
Therefore, display of the present invention is because be equipped with limiting member 30b on video picture scraper plate 30, make that the flowability of toner 11 is low, relatively the length direction of video picture scraper plate 30 is Anywhere because the pressure of the bisque formation S5 of portion that checks colors almost is certain, just can make be formed toner 11 layer thickness be steady state (SS) usually.Therefore, can access the uniform high image quality of concentration prints.In addition, because limiting member 30b and video picture scraper plate 30 have been made one, can reduce the number of parts and reduce manufacturing cost.
Described display, can form on the surface of developing roll 3 the uniform constant thickness of concentration toner 11 the layer.Image processing system with this display, the concentration that sticks to the toner on the paper 11 is uniformly, and can access the high image quality printing.Below, illustrate about this image processing system.The display that is carrying on this image processing system as imaging division 90 is the display that illustrates to embodiment five with described embodiment one.
As shown in figure 20, image processing system of the present invention has: imaging division 90, exposure portion 91, sheet feed stacker 92, defeated paper path 93, photographic fixing portion 94.Arrow among the figure is the path that expression is transferred with paper.
Sheet feed stacker 92 is storage pallets with paper as the recording medium thing.On sheet feed stacker 92, be equipped with when making image be formed on the recording medium thing, be transported on the paper feed roller in paper path 93 with paper from 92 of this sheet feed stacker, be transported on the paper path 93 with paper by the feed roll handle on sheet feed stacker 92 with paper, because be transported on the defeated paper path 93 with paper, thus by imaging division 90 the image transfer printing on paper.
Imaging division 90 has the black cartridge of the versicolor toner of storage, for example: yellow (yellow) (Y), peony (magenta) (M), dark green (cyan) (C), black (black) (K), for the transferred image magnetic drum (image drum) of multiple color and the transfer roll of toner image etc.The toner of imaging division 90 relative each color has: imaging division 90Y, imaging division 90M, imaging division 90C, imaging division 90K.For example, in the occasion of as shown in Figure 20 image processing system, from the upstream side in defeated paper path 93 in order assortment imaging division 90K, the imaging division 90Y of yellow toner 11, the imaging division 90M of red toner 11 and the imaging division 90C of dark green toner 11 with black toner 11.
In this imaging division 90, have the exposure portion 91 of LED head (head) of all kinds relatively etc., on the photosensitive drums 1 of each imaging division 90, form electrostatic latent image, stick to toner 11 on the developing roll 3 by frictional electrification, visual toner looks like to be rasterized out.And, be transferred on paper in the toner image on this photosensitive drums 1.
Be contained in than the imaging division 90 in the defeated paper path 93 photographic fixing portion 94 in downstream more by being transported to of toner 11 transfer printings with paper.This photographic fixing portion 94 is by heating and pressurization, makes toner 11 photographic fixing on paper.Therefore, be transported to photographic fixing portion 94 with the toner on the paper 11 by 94 photographic fixing of photographic fixing portion, image is formed on on the paper.Image processing system of the present invention as described, can form the layer of uniform toner 11 on developing roll 3.For this reason, the uniform toner of concentration looks like to be formed on the photosensitive drums 1.Therefore, image processing system of the present invention by 94 photographic fixing of photographic fixing portion, can form more images with high image quality because the uniform toner of this concentration looks like to be transferred on paper.
The present invention can be applicable to duplicating machine, printer, facsimile recorder and the compounding machine etc. that have at the display of exposure portion exposure image carrier.
Claims (8)
1. display has:
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
A handle is scraped the developer layer that chips away and form the developer layer at the lip-deep described developer of described video picture member and is formed member;
With one be installed in form member and described video picture member than described developer layer along the sense of rotation of described video picture member contact site more upstream side be used to limit the limiting member of the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of described video picture member,
It is characterized in that described limiting member is to be made by tabular resilient material,
Described limiting member with described video picture member not contact side contact with curved tabs one end that described developer layer forms member, and be contained in the sense of rotation upstream side of described video picture member with extending.
2. a display has
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
A handle is scraped the developer layer that chips away and form the developer layer at the lip-deep described developer of described video picture member and is formed member;
With one be installed in form member and described video picture member than described developer layer along the sense of rotation of described video picture member contact site more upstream side be used to limit the limiting member of the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of described video picture member,
It is characterized in that: described limiting member is that crooked tabular resilient material is made,
When forming certain space between the curved end of described limiting member and described developer layer form the curved tabs of member, described curved end is relative with described curved tabs and put.
3. a display has
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
A handle is scraped the developer layer that chips away and form the developer layer at the lip-deep described developer of described video picture member and is formed member;
With one be installed in form member and described video picture member than described developer layer along the sense of rotation of described video picture member contact site more upstream side be used to limit the limiting member of the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of described video picture member,
It is characterized in that: described limiting member is that crooked tabular resilient material is made,
The curved end of described limiting member overlaps the upstream side that contacts in the sense of rotation of described video picture member with the curved tabs that described developer layer forms member.
4. display has:
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
With a handle the lip-deep described developer of described video picture member scrape chip away and form the developer layer in, the developer layer that limits the flowability of described developer forms member;
Described developer layer forms member and has one and the contacted contact site of described video picture member; With a restrictions that limits the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally curved tabs that forms by tabular resilient material of the radial direction of described video picture member,
It is characterized in that:
Described restrictions is by forming along the described curved tabs of the inside reflexed of the radial direction of video picture member.
5. image processing system has:
A charged image carrier surface of exposure also forms the exposure portion of electrostatic latent image;
With one make on the described electrostatic latent image that developer sticks to and formed by described exposure portion and make the developer that is formed as the imaging division of transfer printing on medium,
Described imaging division has:
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
The described developer of a handle on described video picture component surface scraped the developer layer that chips away and form the developer layer and formed member;
With one be installed in form member and described video picture member than described developer layer along the sense of rotation of described video picture member contact site more upstream side be used to limit the limiting member of the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of described video picture member,
It is characterized in that described limiting member is to be made by tabular resilient material,
Described limiting member with described video picture member not contact side contact with curved tabs one end that described developer layer forms member, and be contained in the sense of rotation upstream side of described video picture member with extending.
6. image processing system has:
A charged image carrier surface of exposure also forms the exposure portion of electrostatic latent image;
With one make on the described electrostatic latent image that developer sticks to and formed by described exposure portion and make the developer that is formed as the imaging division of transfer printing on medium,
Described imaging division has:
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
The described developer of a handle on described video picture component surface scraped the developer layer that chips away and form the developer layer and formed member;
With one be installed in form member and described video picture member than described developer layer along the sense of rotation of described video picture member contact site more upstream side be used to limit the limiting member of the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of described video picture member,
It is characterized in that: described limiting member is that crooked tabular resilient material is made,
When forming certain space between the curved end of described limiting member and described developer layer form the curved tabs of member, described curved end is relative with described curved tabs and put.
7. image processing system has:
A charged image carrier surface of exposure also forms the exposure portion of electrostatic latent image;
With one make on the described electrostatic latent image that developer sticks to and formed by described exposure portion and make the developer that is formed as the imaging division of transfer printing on medium,
Described imaging division has:
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
The described developer of a handle on described video picture component surface scraped the developer layer that chips away and form the developer layer and formed member;
With one be installed in form member and described video picture member than described developer layer along the sense of rotation of described video picture member contact site more upstream side be used to limit the limiting member of the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally formed curved tabs of tabular resilient material of the radial direction of described video picture member,
It is characterized in that: described limiting member is that crooked tabular resilient material is made,
The curved end of described limiting member overlaps the upstream side that contacts in the sense of rotation of described video picture member with the curved tabs that described developer layer forms member.
8. image processing system has:
A charged image carrier surface of exposure also forms the exposure portion of electrostatic latent image;
One makes on the described electrostatic latent image that developer sticks to and formed by described exposure portion and makes the developer that is formed as the imaging division of transfer printing on medium;
Described imaging division has:
A developer storage part of depositing developer;
One by rotating the video picture member of being supplied with image-carrier by the stored described developer of described developer storage part;
With one on the described video picture component surface of scraping described developer and form the developer layer in, the developer layer that limits described developer flowability forms the imaging division of member;
Described developer layer forms member and has one and the contacted contact site of described video picture member; With a restrictions that limits the flowability of described developer;
Described developer layer form member have one near described contact site along the crooked laterally curved tabs that forms by tabular resilient material of the radial direction of described video picture member,
It is characterized in that described restrictions is by forming along the described curved tabs of the inside reflexed of the radial direction of video picture member.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005076464 | 2005-03-17 | ||
| JP076464/2005 | 2005-03-17 | ||
| JP032331/2006 | 2006-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1834809A CN1834809A (en) | 2006-09-20 |
| CN100555105C true CN100555105C (en) | 2009-10-28 |
Family
ID=37002608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100681431A Expired - Fee Related CN100555105C (en) | 2005-03-17 | 2006-03-14 | Display and image processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100555105C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6253300B2 (en) * | 2013-08-09 | 2017-12-27 | キヤノン株式会社 | Developing device and process cartridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4401740A (en) * | 1981-01-16 | 1983-08-30 | Ricoh Company, Ltd. | Electrographic development process |
| US5649197A (en) * | 1995-01-20 | 1997-07-15 | Sharp Kabushiki Kaisha | Development apparatus including nonmagnetic single-component developer guide member |
| US6137980A (en) * | 1998-05-29 | 2000-10-24 | Samsung Electronics Co., Ltd. | Developing machine |
| US6459867B2 (en) * | 2000-01-26 | 2002-10-01 | Sharp Kabushiki Kaisha | Developing apparatus |
| EP0809157B1 (en) * | 1996-05-21 | 2004-03-24 | Sharp Kabushiki Kaisha | Developer layer forming device having a blade pressed against a developing roller at an edge portion |
-
2006
- 2006-03-14 CN CNB2006100681431A patent/CN100555105C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4401740A (en) * | 1981-01-16 | 1983-08-30 | Ricoh Company, Ltd. | Electrographic development process |
| US5649197A (en) * | 1995-01-20 | 1997-07-15 | Sharp Kabushiki Kaisha | Development apparatus including nonmagnetic single-component developer guide member |
| EP0809157B1 (en) * | 1996-05-21 | 2004-03-24 | Sharp Kabushiki Kaisha | Developer layer forming device having a blade pressed against a developing roller at an edge portion |
| US6137980A (en) * | 1998-05-29 | 2000-10-24 | Samsung Electronics Co., Ltd. | Developing machine |
| US6459867B2 (en) * | 2000-01-26 | 2002-10-01 | Sharp Kabushiki Kaisha | Developing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1834809A (en) | 2006-09-20 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| CI02 | Correction of invention patent application |
Correction item: Priority Correct: 2006.02.09 JP 032331/2006 False: Lack of priority second Number: 38 Page: The title page Volume: 22 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: PRIORITY; FROM: MISSING THE SECOND ARTICLE OF PRIORITY TO: 2006.2.9 JP 032331/2006 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 |