CN101470387B - Developing device, image forming apparatus and developer cartridge - Google Patents
Developing device, image forming apparatus and developer cartridge Download PDFInfo
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- CN101470387B CN101470387B CN2008102155976A CN200810215597A CN101470387B CN 101470387 B CN101470387 B CN 101470387B CN 2008102155976 A CN2008102155976 A CN 2008102155976A CN 200810215597 A CN200810215597 A CN 200810215597A CN 101470387 B CN101470387 B CN 101470387B
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Abstract
A developing device includes: a developer carrying member that supplies developer to an image carrying member; plural developer supply members,.containing different color developers, that supply the developers to the developer carrying member in a developer supply position; a conveyance member that sequentially conveys the plural developer supply members to the developer supply position; and a peeling member that peels off developer, remained after supply of the developer by the developer carrying member to the image carrying member, from the developer carrying member.
Description
Technical field
The present invention relates to a kind of developing apparatus, image processing system and developer box.
Background technology
The disclosed uncensored patented claim No.H5-158321 of Japan has disclosed a kind of single developing cell and single vacuum pump of using in developing cell, developer and cleaning solvent carried out the liquid developing device of alternate cycles.This liquid developing device can realize that polychrome develops.
Summary of the invention
The present invention provides a kind of image processing system from the developer of different colours to the developer holding member that can optionally supply with.
According to a first aspect of the invention, a kind of developing apparatus is provided, comprises: the developer holding member, its with developer replenishing on image holding member; A plurality of developer replenishing parts, it contains the developer of different colours, and in the developer replenishing position with said developer replenishing to said developer holding member; Transfer member, it is sent to said developer replenishing position successively with said a plurality of developer replenishing parts; And peeling member, its from said developer holding member peel off said developer holding member after said image holding member is supplied with said developer residual developer.
In addition, according to a second aspect of the invention, in said developing apparatus, said transfer member is rotary body or movable body, and said rotary body or movable body support said a plurality of developer replenishing parts and rotate or displacement around turning axle.
In addition, according to a third aspect of the invention we, in said developing apparatus, control the anglec of rotation of said rotary body through controller, said peeling member is peeled off developer from said developer holding member.
In addition, according to a forth aspect of the invention, said developing apparatus also comprises: recovery part, it is used to reclaim the developer of being peeled off by said peeling member.
In addition, according to a fifth aspect of the invention, in said developing apparatus, the said recovery part that is used to reclaim the developer of being peeled off by said peeling member is arranged on and different position, said developer replenishing position.
In addition, according to a sixth aspect of the invention, in said developing apparatus, said recovery part is supported by the said transfer member as the rotary body that rotates around turning axle.
In addition; According to a seventh aspect of the invention; Said developing apparatus also comprises: controller; Thereby its anglec of rotation through the said rotary body of control is selected following state: said a plurality of developer replenishing parts perhaps interrupt the state of said developer replenishing to the said developer holding member from the state of said a plurality of developer replenishing parts to said developer holding member supply developer.
In addition, according to an eighth aspect of the invention, in said developing apparatus, control the anglec of rotation of said rotary body through controller, said recovery part reclaims the developer of being peeled off by said peeling member.
In addition, according to a ninth aspect of the invention, said developing apparatus also comprises: a plurality of peeling members, thus it peels off the developer that remains on the said developer holding member through forming to contact with said developer holding member.
In addition; According to the tenth aspect of the invention; In said developing apparatus, said a plurality of peeling members also have following function: thus contact the function of interrupting supplying with to said developer holding member said developer through forming with said developer holding member respectively from said a plurality of developer replenishing parts.
In addition, according to an eleventh aspect of the invention, in said developing apparatus, said a plurality of peeling members are respectively magnet.
In addition; According to a twelfth aspect of the invention; In said developing apparatus; 10 average surface roughness of said developer holding member are half the less than the toner volume average particle size, and the center line average roughness of perhaps said developer holding member is less than 1/4th of said toner volume average particle size.
In addition, according to a thirteenth aspect of the invention, in said developing apparatus, each surface-coated of said a plurality of peeling members is useful on the coating that prevents that developer from adhering to.
In addition, according to a fourteenth aspect of the invention, said developing apparatus also comprises: reclaim the developer collecting container, it accommodates the developer that reclaims from said recovery part.
In addition; According to a fifteenth aspect of the invention; In said developing apparatus, be sent under the state of said developer replenishing position one of in said a plurality of developer replenishing parts at said transfer member, form said recovery part; And forming under the state of said recovery part, said transfer member is sent in said a plurality of developer replenishing parts any and different position, said developer replenishing position.
In addition; According to a sixteenth aspect of the invention; Said developing apparatus also comprises: a plurality of developer recovery parts; It becomes relative with said peeling member along with moving of said developer replenishing parts, thereby and the degree of tilt that changes with respect to gravity direction through rotation along with said rotary body reclaim the developer of peeling off by said peeling member.
In addition, according to a seventeenth aspect of the invention, in said developing apparatus, said developer recovery part along with the rotation of said rotary body with the developer replenishing that is reclaimed in said developer replenishing parts.
In addition, according to an eighteenth aspect of the invention, in said developing apparatus, said developer recovery part is provided with said recovery developer collecting container integratedly.
In addition, according to a nineteenth aspect of the invention, a kind of image processing system is provided, comprises: image holding member; The developer holding member, its with developer replenishing on said image holding member; A plurality of developer replenishing parts, its contain the developer of different colours and in the developer replenishing position with said developer replenishing to said developer holding member; Transfer member, it is sent to said developer replenishing position successively with said a plurality of developer replenishing parts; And peeling member, its from said developer holding member peel off said developer holding member after said image holding member is supplied with said developer residual developer.
In addition, according to a twentieth aspect of the invention, in said image processing system, said transfer member is rotary body or movable body, and said rotary body or movable body support said a plurality of developer replenishing parts and rotate or displacement around turning axle.
In addition, according to a twenty-first aspect of the invention, in said image processing system, control the anglec of rotation of said rotary body through controller, said peeling member is peeled off developer from said developer holding member.
In addition, according to a twenty-second aspect of the invention, said image processing system also comprises: recovery part, it reclaims the developer of being peeled off by said peeling member.
In addition; According to a twenty-third aspect of the invention; A kind of developer box is provided; It contains and supplies to the developer in the developer replenishing parts and have recovery approach, wherein, said developer replenishing parts in the developer replenishing position with said developer replenishing to the developer holding member so that the image on the image holding member is developed; Said recovery approach reclaims the developer of being peeled off by peeling member, said peeling member from said developer holding member peel off said developer holding member after said image holding member is supplied with said developer residual developer.
According to a first aspect of the invention, can optionally supply with the developer of different colours to said developer holding member.
According to a second aspect of the invention, except the effect that obtains by first aspect present invention, compare, can utilize rotary body or movable body easily to form transfer member with the situation of not using this structure.
According to a third aspect of the invention we, except the effect that obtains by first aspect present invention, compare, can utilize simple structure to prevent the blend of colors of developer with the situation of not using this structure.
According to a forth aspect of the invention, except the effect that obtains by first aspect present invention, can reclaim the developer of being peeled off.
According to a fifth aspect of the invention, except the effect that obtains by fourth aspect present invention, can prevent recovery developer in the developer replenishing position.
According to a sixth aspect of the invention, except the effect that obtains by fifth aspect present invention, compare, can utilize simple structure to prevent the blend of colors of developer with the situation of not using this structure.
According to a seventh aspect of the invention, except the effect that obtains by second aspect present invention, compare, can easily select to supply with developer or stop developer with the situation of not using this structure.
According to an eighth aspect of the invention, except the effect that obtains by sixth aspect present invention, compare with the situation of not using this structure, can be so that reclaim developer.
According to a ninth aspect of the invention, except the effect that obtains by first aspect present invention, compare, can easily peel off developer with the situation of not using this structure.
According to the tenth aspect of the invention, except the effect that obtains by nineth aspect present invention, compare, can easily stop developer with the situation of not using this structure.
According to an eleventh aspect of the invention, except the effect that obtains by nineth aspect present invention, compare, can easily stop developer with the situation of not using this structure.
According to a twelfth aspect of the invention, except the effect that obtains by first aspect present invention, compare, can easily optionally supply with the developer of different colours to the developer holding member with the situation of not using this structure.
According to a thirteenth aspect of the invention, except the effect that obtains by nineth aspect present invention, compare, can easily optionally supply with the developer of different colours to the developer holding member with the situation of not using this structure.
According to a fourteenth aspect of the invention, except the effect that obtains by fourth aspect present invention, compare, can easily reclaim the developer of being peeled off with the situation of not using this structure.
According to a fifteenth aspect of the invention, except the effect that obtains by sixth aspect present invention, compare, can utilize simple structure to prevent the blend of colors of developer with the situation of not using this structure.
According to a sixteenth aspect of the invention, except the effect that obtains by second aspect present invention, compare, can utilize rotary body or movable body easily to form transfer member with the situation of not using this structure.
According to a seventeenth aspect of the invention, except the effect that obtains by the present invention the 16 aspect, compare, can easily optionally supply with the developer of different colours to the developer holding member with the situation of not using this structure.
According to an eighteenth aspect of the invention, except the effect that obtains by fourth aspect present invention, compare, can easily reclaim developer with the situation of not using this structure.
According to a nineteenth aspect of the invention, can optionally supply with the developer of different colours to the developer holding member.
According to a twentieth aspect of the invention, except the effect that obtains by the present invention the 19 aspect, compare, can utilize rotary body or movable body easily to form transfer member with the situation of not using this structure.
According to a twenty-first aspect of the invention, except the effect that obtains by the present invention the 19 aspect, compare, can utilize simple structure to prevent the blend of colors of developer with the situation of not using this structure.
According to a twenty-second aspect of the invention, except the effect that obtains by the present invention the 19 aspect, can reclaim the developer of being peeled off.
According to a twenty-third aspect of the invention, compare, can easily optionally supply with the developer of different colours to the developer holding member with the situation of not using this structure.
Description of drawings
Based on following each figure exemplary embodiment of the present invention is elaborated, wherein:
Fig. 1 be schematically illustrated according to the present invention the cut-open view of the structure of the image processing system of first exemplary embodiment;
Fig. 2 is the cut-open view that the developing apparatus instance is shown;
Fig. 3 is the cut-open view that the details of toner Cartridge is shown;
Fig. 4 is the cut-open view that the details of developer replenishing parts is shown;
Fig. 5 A to 5C illustrates magnet to peel off the developer that remains on the developer roll and (comprise stripping
The amplification view of state off normal developer around putting);
Fig. 6 A to 6G is the cut-open view that the operational instances of developing apparatus is shown;
Fig. 7 is the cut-open view that schematically shows the structure of the image processing system of second exemplary embodiment according to the present invention;
Fig. 8 is the cut-open view that first modified example of developing apparatus is shown;
Fig. 9 A to 9C is the cut-open view of operational instances that first modified example of developing apparatus is shown;
Figure 10 is the cut-open view that second modified example of developing apparatus is shown;
Figure 11 A to 11C is the cut-open view of operational instances that second modified example of developing apparatus is shown;
Figure 12 is the cut-open view that the 3rd modified example of developing apparatus is shown;
Figure 13 A to 13H is the cut-open view of operational instances that the 3rd modified example of developing apparatus is shown;
Figure 14 is the cut-open view that schematically shows the structure of the image processing system of the 3rd exemplary embodiment according to the present invention;
Figure 15 is the cut-open view that the developing apparatus in the present invention's the 3rd exemplary embodiment is shown;
Figure 16 illustrates to strike off the amplification view that parts are removed the state of the developer on the sleeve surface that remains in developer roll; And
Figure 17 A to 17C is the cut-open view that the operational instances of the developing apparatus of the 3rd exemplary embodiment according to the present invention is shown.
Embodiment
Next, will be based on description of drawings first exemplary embodiment of the present invention.
Fig. 1 schematically shows the structure of the image processing system 10 of first exemplary embodiment according to the present invention.This image processing system 10 has image processing system main body 12.Be provided with in the rear side (right side among Fig. 1) of image processing system main body 12 and for example be the paper feed unit 14 of single layer cell.
Thereby the printer paper that from the paper feeding box 16 of paper feed unit 14, is picked up by paper pick-up roller 18 is supplied to roller 20 and 22 retardances of retardance roller, and then only the top layer paper is directed on the transfer path 24.Registration roller 30 temporarily stops printer paper then, and passes at predetermined regularly paper that while developer image is transferred on this paper between the secondary transfer roller 60 that will explain the back and the secondary transfer printing backing roll 54.Fixing device 28 with the developer image fixing of institute's transfer printing to paper.Distributing roller 32 is discharged printer paper from escape hole 26.
Image processing system main body 12 for example is provided with developing apparatus 34 at its substantial middle position.This developing apparatus 34 utilizes the developer of yellow, magenta, blue-green (cyan) and black to make the electrostatic latent image that remains on the image holding member 36 that will explain the back (it is thus clear that visual).
The image holding member 36 that for example has photoreceptor is arranged to contact with developing apparatus 34 pressure from the face side top position of image processing system 10.For example has charging roller is arranged on image holding member 36 with the charging device 38 to image holding member 36 uniform charging rear side.In other words, apply the development bias voltage to image holding member 36.In addition, the sense of rotation along image holding member 36 is provided with and image holding member 36 contacted image holding member clearers 40 at the upstream side of charging device 38.Image holding member clearer 40 is for example removed after primary transfer and is remained in the developer on the image holding member 36.
Be provided with the exposure device 42 that writes sub-image on the image holding member 36 that utilization such as light such as laser beam are being recharged device 38 charging above the developing apparatus 34.In addition; Face side in image holding member 36 is provided with intermediate transfer device 44, by the developer image of developing apparatus 34 visibleization (visual) in the primary transfer position primary transfer on intermediate transfer device 44 and this intermediate transfer device 44 the developer image is sent to the secondary transfer printing position that the back will be explained.
In intermediate transfer device 44, it is relative with secondary transfer printing backing roll 54 that secondary transfer roller 60 is arranged to, and transfer path 24 is between secondary transfer roller 60 and the secondary transfer printing backing roll 54.In other words, the secondary transfer printing set positions is between secondary transfer roller 60 and secondary transfer printing backing roll 54.Secondary transfer roller 60 will be under the assistance of secondary transfer printing backing roll 54 the developer image of primary transfer on intermediate transfer body 46 in the secondary transfer printing position secondary transfer printing to printer paper.Notice that when intermediate transfer body 46 rotated three times, promptly when transmitting yellow, magenta, blue-green developer image, secondary transfer roller 60 was away from intermediate transfer body 46.When the intact black reagent image of transfer printing, secondary transfer roller 60 becomes with intermediate transfer body 46 and contacts.Notice, between secondary transfer roller 60 and secondary transfer printing backing roll 54, produce predetermined potential difference (PD).For example, when when secondary transfer roller 60 applies high voltage, secondary transfer printing backing roll 54 is connected with ground (GND) etc.
Be provided with fixing device 28 along transfer path 24 in the downstream of secondary transfer printing position.Fixing device 28 has warm-up mill and backer roll.Fixing device 28 will by secondary transfer roller 60 and secondary transfer printing backing roll 54 secondary transfer printings in the developer image fixing on the printer paper to printer paper, and transmit paper towards distributing roller 32.
In addition, in image processing system 10, be provided with the controller 62 that each component parts of image processing system 10 is controlled.
Next, will specify developing apparatus 34.
Fig. 2 to 4 shows the details of developing apparatus 34.Developing apparatus 34 has that rotary body (transfer member) 66, developer roll 68, bed thickness are regulated parts 70, developer roll is accommodated wall 74, peeling member 76, toner Cartridge (supplying with the developer collecting container) 78a～78d and developer replenishing parts 80a～80d.
Hereinafter, under not having specially appointed situation the explanation such as in a plurality of component parts such as developer replenishing parts 80a～80d any the time, for example can it be abbreviated as " developer replenishing parts 80 ".
Notice that the developer that is housed among developer replenishing parts 80a～80d for example is the two-component developing agent that comprises nonmagnetic toner and magnetic carrier.
As shown in Figure 3, toner Cartridge 78 has and is used to accommodate the not use toner receptacle 84 that do not use toner and is used for reclaiming the developer recovery part 86 of being peeled off the developer of (recovery) by peeling member 76 from developer roll 68.Do not use toner receptacle 84 to be provided with and be used for supplying with the supply port 87 that does not use toner to developer replenishing parts 80.Developer recovery part 86 is provided with: opening 88, and it is used to reclaim the developer of being peeled off by peeling member 76; Open and close parts 90, it is used for opening/closing opening 88; And escape hole 92, it is used for the developer that is reclaimed is discharged (supply) to developer replenishing parts 80.
As shown in Figure 4, developer replenishing parts 80 have supply part main body 94, first auger 96 and second auger 98.Supply part main body 94 is provided with and is used for receiving first inlet 100 of toners, second inlet 102 that is used to be received in the developer that developer recovery part 86 reclaimed and the opening 104 that is used for supplying with to developer roll 68 developers from toner Cartridge 78.First auger 96 transmits from the toner of toner Cartridge 78 supplies and the developer that receives from developer recovery part 86 towards second auger 98 when stirring developer.98 pairs of developers of second auger stir, and when opening 104 moved to the position relative with developer roll 68 along with the rotation of rotary body 66, second auger transmitted and supply with developer towards developer roll 68.In other words, the developer that in developer recovery part 86, reclaims uses to being fed into the developer of developer roll 68 again.
Notice, transmit developer so that this developer circulates when being stirred through first auger 96 and second auger 98 in feedway main body 94, thereby make nonmagnetic toner attached to around the magnetic carrier.
Developer roll 68 (referring to Fig. 2) has: fixed magnets 110, and it extends axially and has a plurality of N utmost points and a S utmost point along developer roll; And sleeve 112, portion accommodates magnet 110 and is rotated within it, and according to the magnetic force of magnet 110 and along circumferential transmission developer.In magnet 110; For example the upper position of developer replenishing parts 80 1 sides be provided with relatively arrange with image holding member 36 and with the developer replenishing on the developer roll 68 on the image holding member 36 magnetic pole (the development utmost point) and from developer replenishing parts 80, attract the magnetic pole (picking up the utmost point) of developer, and for example be provided with the magnetic pole (peeling off the utmost point) that repels developer at the lower position of developer replenishing parts 80 1 sides.In addition, developer roll 68 is housed in developer roll and accommodates in the wall 74, thereby this developer roll is accommodated wall and opened wide and to expose the part relative with image holding member 36.Between developer roll 68 and image holding member 36, form in the predetermined gap, developer roll 68 is supplied with the developer of each color of utilizing the magnetic force maintenance to image holding member 36.
Bed thickness is regulated the bed thickness of the developer of (remaining on the developer roll 68) on 70 pairs of surfaces attached to developer roll 68 of parts and is regulated.Accommodate at developer roll and to be formed with the leader 118 that is used for developer is directed to developer replenishing parts 80 in the wall 74.
Peeling member 76 has and is roughly parallel to turning axle 114 that developer roll 68 is provided with and under the control of controller 62, for example is the magnet 116 of rare earths around turning axle 114 rotation that (is the dextrorotation direction among Fig. 2) clockwise.Peeling member 76 utilizes its magnetic force to peel off at the developer that after image holding member 36 is supplied with developers, remains on the developer roll 68 from developer roll 68, and divides 118 developer guided to developer replenishing parts 80 via guide sections.
Fig. 5 A to 5C illustrates the amplification view that magnet 116 is peeled off the state of the developer (comprise and peel off position developer on every side) that remains on the developer roll 68.Shown in Fig. 5 A, peeling member 76 rotation and the magnet 116 that is arranged on developer roll 68 belows when accommodating wall 74 via developer roll is during near developer roll 68, and magnet 116 is attracted to leader 118 1 sides with developer.In addition, shown in Fig. 5 B, when peeling member 76 rotation and magnet 116 beginnings are moved away from developer roll 68 ground, utilize the magnetic force of magnet 116 that developer is peeled off from developer roll 68.In addition; Shown in Fig. 5 C; When peeling member 76 is further rotated and magnet 116 when developer roll 68 ground move further away from each other, developer moves down along leader 118 in by the magnetic attraction of magnet 116, and then to falling into the zone that not influenced by above-mentioned magnetic force.Notice that leader 118 is for separating the partition wall of peeling member 76 and developer.Leader 118 forms has such zone: promptly, in this zone, this leader 118 to the distance of developer roll 68 and magnet 116 along with magnet 116 from its near the position of developer roll 68 away from and elongated.
Like this, when peeling member 76 was peeled off developer, magnet 116 made the magneticaction of magnet 116 in the developer that remains on the developer roll 68 near developer roll 68 1 sides.When peeling member 76 had been peeled off developer, thereby magnet 116 rotated (being the dextrorotation direction among Fig. 5 B) away from developer roll 68 ground makes the developer of having peeled off break away from developer roll 68.
Notice, when developing apparatus 34 makes electrostatic latent image visible, on the position that the magnetic force that controller 62 stops at magnet 116 magnet 116 reduces the effect that remains on the developer on the developer roll 68 (side opposite) with developer roll 68.Then, when controller 62 has stoped when supplying with developer through the rotation of rotary body 66, controller 62 rotating magnets 116 make the magneticaction of magnet 116 in the developer that remains on the developer roll 68.
Next, with the operational instances that developing apparatus 34 is described.
Fig. 6 A to 6G shows the summary of the operational instances of developing apparatus 34.Shown in Fig. 6 A, when developing apparatus 34 for example utilized magenta developer to make electrostatic latent image visible, developer roll 68 was rotated in the magenta developer that the developer replenishing parts 80b that is arranged in the developer replenishing position supplies with keeping.
When accomplishing visibleization of utilizing magenta developer; Then shown in Fig. 6 B; In developing apparatus 34; Opening and closing parts 90 (referring to Fig. 3) opens along with the rotation (less than 90 °) of rotary body 66; Thereby developer replenishing parts 80b moves to outside the scope of magnetic force generation effect of developer replenishing magnetic pole of developer roll 68 and stops magenta developer from the supply of developer replenishing parts 80b to developer roll 68, and stops on the position that covers between developer roll 68 and the leader 118 partly at the control under shed 88 of controller 62.In other words, be formed for reclaiming the recovery approach of the developer of peeling off from developer roll 68.
When opening 88 has stopped between developer roll 68 and the leader 118, then, shown in Fig. 6 C, in developing apparatus 34, in peeling member under the control of controller 62 76 rotation and peel off the magenta developer that remains on the developer roll 68.
Shown in Fig. 6 D, along with magnet 116 moves away from leader 118 ground, leader 118 will be directed to from the magenta developer that developer roll 68 is peeled off the developer recovery section 86.
Shown in Fig. 6 E, when magnet 116 is further rotated, will be recovered in the developer recovery part 86 from the magenta developer (temporarily) that developer roll 68 is peeled off.
When having reclaimed from magenta developer that developer roll 68 is peeled off; Then shown in Fig. 6 F; In order to utilize the blue-green developer to make electrostatic latent image visible, rotary body 66 is rotated that to make that developer replenishing parts 80c becomes relative with developer roll 68 in developing apparatus 34.Notice that developer roll 68 is rotated keeping in the blue-green developer that developer replenishing parts 80c supplies with.
On the other hand, in toner Cartridge 78b, open and close parts 90 (referring to Fig. 3) and close, and then the magenta developer that is reclaimed still is housed in the developer recovery part 86.
In case carry out colour print, developing apparatus 34 just utilizes yellow developer to make electrostatic latent image visible, utilizes magenta and glaucous developer to make electrostatic latent image visible then as stated, utilizes black reagent to make electrostatic latent image visible afterwards again.
Then, when utilizing magenta developer to make electrostatic latent image visible once more, in developing apparatus 34, rotary body 66 is rotated under the control of controller 62 that to make that developer replenishing parts 80b becomes relative with developer roll 68.Notice that developer recovery part 86 changes along with the rotation of rotary body 66 with respect to the degree of tilt of gravity direction.Shown in Fig. 6 G; When developer recovery part 86 changes along with the rotation of rotary body 66 when making that escape hole 92 (referring to Fig. 3) is positioned on the lower side position with respect to the degree of tilt of gravity direction, the magenta developer that in developer recovery part 86, reclaims is fed into (magenta developer is owing to its deadweight turns back among the developer replenishing parts 80b) among the developer replenishing parts 80b.
Next, with the operation that first exemplary embodiment of the present invention is described.
When sending out image and form signal, 38 pairs of image holding member 36 uniform charging of charging device, and light is transmitted into the image holding member 36 after the charging from exposure device 42 based on picture signal.Light from exposure device 42 makes public to the surface of image holding member 36, and then forms electrostatic latent image.
Developing apparatus 34 utilizes the color of developer that the electrostatic latent image that remains on the image holding member 36 is developed, and the electrostatic latent image primary transfer after will developing then is to intermediate transfer body 46.The developer image overlay of each color is on intermediate transfer body 46 then, and then forms coloured image.
From developer replenishing parts 80a～80d with the developer replenishing of yellow, magenta, blue-green and black to developer roll 68.Then, before the developer replenishing that will descend a kind of color is to the developer roll 68, the developer that too much supplies on the developer roll 68 is recovered in the developer replenishing parts 80 of same color.In case carry out primary transfer, image holding member clearer 40 just will remain in that waste developer on the image holding member 36 is removed and with its recovery.
On the other hand, pick up the printer paper that is housed in the paper feeding box 16 according to paper pick-up rollers 18 such as paper feeding signals, donor rollers 20 blocks printer paper with retardance roller 22, and only the top layer printer paper is directed on the transfer path 24.Registration roller 30 temporarily stops printer paper, and regularly this printer paper is guided between secondary transfer roller 60 and the secondary transfer printing backing roll 54 predetermined.When printer paper being guided between secondary transfer roller 60 and the secondary transfer printing backing roll 54, utilize secondary transfer roller 60 and secondary transfer printing backing roll 54 the developer image secondary transfer printing of primary transfer on intermediate transfer body 46 to printer paper.
Have the printer paper of developer image to be directed to fixing device 28 transfer printing on it, so utilize warm-up mill and backer roll with the developer image fixing to printer paper.Distributing roller 32 has photographic fixing on it printer paper of developer image to discharge from escape hole 26.
Next, will be based on description of drawings second exemplary embodiment of the present invention.
Fig. 7 is the cut-open view of structure that schematically shows the image processing system 210 of second exemplary embodiment according to the present invention.This image processing system 210 has image processing system main body 212.Be provided with in the bottom of image processing system main body 212 and for example be the paper feed unit 214 of single layer cell.
Correspondingly, the printer paper that from the paper feeding box 216 of paper feed unit 214, is picked up by paper pick-up roller 218 is supplied to roller 220 and 222 retardances of retardance roller, and then only the top layer paper is directed on the transfer path 224.Then, registration roller 230 temporarily stops printer paper, and passes between the image holding member 236 and transfer roll 260 that will explain the back at predetermined regularly paper, and for example the developer image of black is transferred on this paper simultaneously.Fixing device 228 with the black reagent image fixing of institute's transfer printing to printer paper.Distributing roller 232 is discharged printer paper from escape hole 226.
Under the situation of carrying out colour print, printer paper turns back to the repetition passage three times.In other words, in transfer path 224, the part of distributing roller 232 front sides fork is two passes, and is provided with switching device shifter 246 at the fork position, and forms the duplicate paths 248 that turns back to registration roller 230 from the fork position.Be provided with transfer roller 250,252,254 and 256 along duplicate paths 248.Under the situation of colour print; Switching device shifter 246 is switched to a side of opening duplicate paths 248; Then printer paper is directed to duplicate paths 248; Then, this printer paper passes for four times between registration roller 230, image holding member 236 and the transfer roll 260 and fixing device 228, and then printer paper is discharged from escape hole 226.
Image processing system main body 212 for example is provided with developing apparatus 234 at its substantial middle position.Developing apparatus 234 utilizes the color developer of yellow, magenta, blue-green and black to make the electrostatic latent image that remains on the image holding member 236 that will explain the back visible.Notice to have rotary body 266, developer roll 268, bed thickness and regulate parts 270, developer roll and accommodate the developing apparatus 234 of wall 274, peeling member 276, toner Cartridge 278a～278d and developer replenishing parts 280a～280d etc. and have identical construction in fact with developing apparatus 34 shown in Figure 2.
The upper position that for example has image holding member 236 one side from image processing system 210 back sides of photoreceptor contacts with developing apparatus 234.For example has charging roller is arranged on image holding member 236 with the charging device 238 to image holding member 236 uniform charging face side.In other words, apply the development bias voltage to image holding member 236.In addition, image holding member clearer 240 is arranged to contact with image holding member 236 at the upstream side of charging device 238 along the sense of rotation of image holding member 236.Image holding member clearer 240 remains in the developer on the image holding member 236 after being used to remove transfer printing.
Be provided with the exposure device 242 that writes electrostatic latent image on the image holding member 236 that utilization such as light such as laser beam are being recharged device 238 charging above the developing apparatus 234.In addition, be provided with transfer roll 260 in the rear side of image holding member 236, this transfer roll will be by the developer image of developing apparatus 234 visibleization to printer paper in transfer position.
Be provided with fixing device 228 along transfer path 224 in the downstream of transfer position.This fixing device 228 has warm-up mill and backer roll.Fixing device 228 will by image holding member 236 and transfer roll 260 transfer printings in the developer image fixing on the printer paper to printer paper, and transmit this paper.
In addition, in image processing system 210, be provided with the controller 262 that each component parts of image processing system 210 is controlled.
Next, with the operation (colour print) that the present invention's second exemplary embodiment is described.
When sending out image and form signal, 238 pairs of image holding member 236 uniform charging of charging device, and will be transmitted into the image holding member 236 after the charging from exposure device 242 corresponding to the light of yellow image based on picture signal.Light from exposure device 242 makes public to the surface of image holding member 236, and then forms electrostatic latent image.
The yellow developer that utilization supplies on the developer roll 268 of developing apparatus 234 is developed to the electrostatic latent image that remains on the image holding member 236, and the electrostatic latent image after will developing then is transferred on the printer paper of sending here from paper feed unit 214.Have the printer paper of yellow developer image to be directed to fixing device 228 transfer printing on it then, and utilize warm-up mill and backer roll with the developer image fixing to printer paper.Switching device shifter 246 has the printer paper of yellow toner image to turn back in the duplicate paths 248 photographic fixing on it.
Peeling member 276 will remain on the developer that (remains on the developer roll 268) on the developer roll 268 and peel off, and the developer of being peeled off is recovered among the developer replenishing parts 280a.Then, rotary body 266 rotations of developing apparatus 234 supply to magenta developer on the developer roll 268 thus.238 pairs of image holding member 236 uniform charging of charging device, and will be transmitted into the image holding member 236 after the charging from exposure device 242 corresponding to the light of magenta color image based on picture signal.Light from exposure device 242 makes public to the surface of image holding member 236, and then forms electrostatic latent image.
The magenta developer that utilization supplies on the developer roll 268 of developing apparatus 234 is developed to the electrostatic latent image that remains on the image holding member 236, and the electrostatic latent image after will developing then is transferred on the printer paper.Have the printer paper of magenta developer image to be directed to fixing device 228 transfer printing on it then, and utilize warm-up mill and backer roll with the developer image fixing to printer paper.Switching device shifter 246 has the printer paper of magenta developer image to turn back in the duplicate paths 248 photographic fixing on it.
Peeling member 276 will remain on the developer that (remains on the developer roll 268) on the developer roll 268 and peel off, and the developer of being peeled off is recovered among the developer replenishing parts 280b.
Along with printer paper turns back to for three times in the duplicate paths 248; As yellow the same with the situation of magenta toner image; To utilize toner image that blue-green and black reagent develop to printer paper through fixing device 228, on printer paper, form the coloured image that wherein is superimposed with each developer image then.Switching device shifter 246 is directed to distributing roller 232 places with the printer paper of photographic fixing chromatic colour image on it, and then this printer paper is discharged.
Next, with first modified example that developing apparatus 34 is described.
Fig. 8 is the cut-open view that first modified example of developing apparatus 34 is shown.Notice that in first modified example of this developing apparatus 34, the component parts identical in fact with developing apparatus 34 shown in Figure 2 has identical Reference numeral.
As shown in Figure 8, developer replenishing parts 80 be provided be used to prevent switching parts 300 that developer flows out be used to remove the developer that remains on the developer roll 68 strike off parts 302.
Fig. 9 A to 9C is the cut-open view that the operational instances of developing apparatus 34 first modified examples is shown.Shown in Fig. 9 A, when developing apparatus 34 for example utilized magenta developer to make electrostatic latent image visible, developer roll 68 was rotated in the magenta developer that the developer replenishing parts 80b that is positioned at the developer replenishing position supplies with keeping.
Notice that the distance between the axle surface of the surface of developer roll 68 and second auger 98 for example is about 6.5mm.
When accomplishing visibleization of utilizing magenta developer; Then shown in Fig. 9 B; In developing apparatus 34; Under the control of controller 62, the switching parts 300 of developer replenishing parts 80b move 20 ° along with the rotation of rotary body 66, strike off parts 302 and contact and then remove the developer that remains on the developer roll 68 with the surface formation of developer roll 68.To be recovered in the supply part main body 94 by the developer that strikes off parts 302 removals in the position different with the developer replenishing position.
Notice that the distance between the axle surface of the surface of developer roll 68 and second auger 98 for example extends to about 11mm, interrupts thus from the developer replenishing of developer replenishing parts 80 to developer roll 68.
When having reclaimed from magenta developer that developer roll 68 is peeled off; Then shown in Fig. 9 C; In developing apparatus 34, make electrostatic latent image visible in order to utilize the blue-green developer, rotary body 66 rotates 70 ° so that developer replenishing parts 80c becomes relative with developer roll 68.Notice that developer roll 68 is rotated keeping in the blue-green developer that developer replenishing parts 80c supplies with.
Next, with second modified example that developing apparatus 34 is described.
Figure 10 is the cut-open view that second modified example of developing apparatus 34 is shown.Notice that in second modified example of this developing apparatus 34, the component parts identical in fact with developing apparatus 34 shown in Figure 2 has identical Reference numeral.
Shown in figure 10, developer replenishing parts 80 are provided with the switching parts 300 that are used to prevent the developer outflow.In addition, for example rotary body 66 be provided be used to remove the developer that remains on the developer roll 68 strike off parts 304.
Figure 11 A to 11C is the cut-open view of operational instances that second modified example of developing apparatus 34 is shown.Shown in Figure 11 A, when developing apparatus 34 for example utilized magenta developer to make electrostatic latent image visible, developer roll 68 was rotated in the magenta developer that the developer replenishing parts 80b that is positioned at the developer replenishing position supplies with keeping.
Notice that the distance between the axle surface of the surface of developer roll 68 and second auger 98 for example is about 6.5mm.
When accomplishing visibleization of utilizing magenta developer; In developing apparatus 34; Shown in Figure 11 B, under the control of controller 62, rotary body 66 for example rotates 53 °; Close the switching parts 300 of developer replenishing parts 80b thus, strike off parts 304 and contact and then remove the developer that remains on the developer roll 68 with the surface formation of developer roll 68.To be recovered in the toner Cartridge 78 by the developer that strikes off parts 304 removals in the position different with the developer replenishing position.
Notice that the distance between the axle surface of the surface of developer roll 68 and second auger 98 for example extends to about 20mm, interrupts thus from the developer replenishing of developer replenishing parts 80 to developer roll 68.
When having reclaimed from magenta developer that developer roll 68 is peeled off; Then shown in Figure 11 C; In developing apparatus 34, make electrostatic latent image visible in order to utilize the blue-green developer, rotary body 66 rotates 37 ° so that developer replenishing parts 80c becomes relative with developer roll 68.Notice that developer roll 68 is rotated keeping in the blue-green developer that developer replenishing parts 80c supplies with.
Next, with the 3rd modified example that developing apparatus 34 is described.
Figure 12 is the cut-open view that the 3rd modified example of developing apparatus 34 is shown.Notice that in the 3rd modified example of developing apparatus 34, the component parts identical in fact with developing apparatus 34 shown in Figure 2 has identical Reference numeral.
Shown in figure 12, developer replenishing parts 80 are provided with and are used to prevent the switching parts 306 that developer flows out and are used to guide the guide member 308 from the developer of developer roll 68 recovery.
Notice that lifter (movable body) 310 moves up and down developer replenishing parts 80a～80d and toner Cartridge 78a～78d, and in the precalculated position towards developer roll 68 approximate horizontal move developer replenishing parts 80a～80d and toner Cartridge 78a～78d.
Figure 13 A to 13H is the cut-open view of operational instances that the 3rd modified example of developing apparatus is shown.Shown in Figure 13 A, when developing apparatus 34 for example utilized yellow developer to make electrostatic latent image visible, developer roll 68 was rotated in the yellow developer that the developer replenishing parts 80b that is positioned at the developer replenishing position supplies with keeping.
When accomplishing visibleization of utilizing yellow developer; Then shown in Figure 13 B; In developing apparatus 34, under the control of controller 62, move down the developer replenishing of interruption to developer roll 68 through lifter 310; Leader 118 forms the developer guiding channel with guide member 308, and closes switching parts 306a.In other words, be formed for reclaiming the recovery approach of the developer of peeling off from developer roll 68.
When being formed for reclaiming the recovery approach of developer, shown in Figure 13 C, in developing apparatus 34, under the control of controller 62, peeling member 76 rotations and the yellow developer that will remain on the developer roll 68 are peeled off then.
Shown in Figure 13 D, along with magnet 116 moves away from leader 118 ground, guide member 308 will be recovered in from the yellow developer that developer roll 68 is peeled off the supply part main body 94 in the position different with the developer replenishing position.
Shown in Figure 13 E, along with magnet 116 is further rotated, all yellow developer of peeling off from developer roll 68 all are recovered in the supply part main body 94.
Shown in Figure 13 F, when all yellow developer of peeling off from developer roll 68 all had been recovered in the supply part main body 94, developer replenishing parts 80a and toner Cartridge 78a kept out of the way from developer roll 68.
Shown in Figure 13 G, when developer replenishing parts 80a and toner Cartridge 78a when developer roll 68 is kept out of the way, lifter 310 moves down that to make that developer replenishing parts 80b becomes relative with developer roll 68.
Shown in Figure 13 H, when lifter 310 has moved down and developer replenishing parts 80b when having become with developer roll 68 relatively, developing apparatus 34 supplies to developer roll 68 with magenta developer from developer replenishing parts 80b.
Notice, in above-mentioned exemplary embodiment, utilize two-component developing agent to make electrostatic latent image visible; Yet developer is not limited to such developer.For example, developing apparatus 34 monocomponent toners capable of using make electrostatic latent image visible.
In addition, can send back the developer that is received in the developer recovery part 86, and utilize developer deadweight developer to be recovered in the device such as predetermined recovery box by means of the rotation or the moving up and down of lifter 310 of rotary body 66.
In addition, the recovery developer collecting container that is used for accommodating the developer of peeling off and reclaiming from developer roll 68 can be arranged on a position of image processing system 10, rotary body 66 and lifter 310.
Next, will be based on description of drawings the 3rd exemplary embodiment of the present invention.
Figure 14 be schematically illustrated according to the present invention the cut-open view of the structure of the image processing system 10 of the 3rd exemplary embodiment.Notice in the image processing system 10 of the 3rd exemplary embodiment, to have identical Reference numeral according to the identical in fact component parts of the image processing system 10 of first exemplary embodiment with shown in Figure 1 according to the present invention.
Figure 15 is the cut-open view of developing apparatus 34 that the image processing system 10 of the 3rd exemplary embodiment according to the present invention is shown.Notice that in developing apparatus shown in Figure 15 34, the component parts identical in fact with developing apparatus 34 shown in Figure 8 has identical Reference numeral.
The developer replenishing parts 80a～80d that is used for supplying with yellow, magenta, blue-green and black reagent to developer roll 68 successively is removably disposed in rotary body 66.Rotary body 66 for example rotates along counterclockwise (be left hand direction among Figure 15) around turning axle 82 by means of the driving force of driver part 83, thereby makes developer replenishing parts 80a～80d move to the position (developer replenishing position) relative with developer roll 68.
Be used to guide and strike off parts 302 and form from predetermined direction and developer roll 68 and contact so that strike off near (along the sense of rotation of rotary body 66 the upstream side) that guide member 303 that parts 302 can not damage developer roll 68 is arranged on developer roll 68 and strikes off position that parts 302 contact with each other at rotary body 66.
Figure 16 illustrates to strike off the amplification view that parts 302 are removed the state that remains in developer roll 68 lip-deep developers.
The surface that utilizes coating coating (surface treatment) to strike off parts 302 is adhered to prevent developer.The coating of striking off parts 302 for example is tetrahedral amorphous carbon film (ta-C film), diamond-like carbon film (DLC film), cubic boron nitride film (C-BN film), silicon carbide film (SiC film), chromium nitride film (CrN film), carbonization tungsten film (W-C film) or other metalized films (Ti film) etc.
In developer roll 68,, toner over halfly peels off toner through striking off parts 302 thereby exposing from coarse surface.For example, as Φ d=5 μ m during, set the surfaceness of developer roll 68 for value with following expression 1 or 2 expressions as the toner volume average particle size.
10 average surface roughness
R<sub >zJIS</sub><d2＝5μm/2＝2.5μm
R
zJIS<2.5μm...(1)
The arithmetic mean of absolute value
Ra
<d/>4＝5μm/4＝1.25μm
Ra<1.25μm...(2)
Notice that striking off parts 302 can be such parts: promptly, thereby these parts deform and contact with developer roll 68 formation from predetermined direction when these parts of guide member 303 guiding.
Like this, developer replenishing parts 80 remain in the developer on the developer roll 68 after being recovered and reused in and supplying with developer.
Comprise that (being left hand direction among Figure 15) along the developer roll 68 (referring to Figure 15) of axially extended magnet assembly along counterclockwise rotates.In addition, developer roll 68 is housed in developer roll and accommodates in the wall 74, thereby this developer roll is accommodated wall 74 and opened wide and expose the part relative with image holding member 36.Between developer roll 68 and image holding member 36, form in the predetermined gap, developer roll 68 is supplied with the developer of each color of utilizing the magnetic force maintenance to image holding member 36.
Bed thickness is regulated 70 pairs of bed thickness attached to the developer of developer roll 68 surfaces (remaining on the developer roll 68) of parts and is regulated.
Figure 17 A to 17C is the cut-open view of operational instances of developing apparatus 34 that the image processing system 10 of the 3rd exemplary embodiment according to the present invention is shown.Shown in Figure 17 A, when developing apparatus 34 for example utilized magenta developer to make electrostatic latent image visible, developer roll 68 was rotated in the magenta developer that the developer replenishing parts 80b that is positioned at the developer replenishing position supplies with keeping.
When accomplishing visibleization of utilizing magenta developer; Then shown in Figure 17 B; In developing apparatus 34, under the control of controller 62, the switching parts 300 of developer replenishing parts 80b move for example 20 ° along with the rotation of rotary body 66; 303 pairs of guide members strike off parts 302 channeling conducts and make this strike off parts and contact with the surface of developer roll 68, and then strike off parts 302 and remove and remain in the developer on the developer roll 68.To be recovered in the supply part main body 94 by the developer that strikes off parts 302 removals in the position different with the developer replenishing position.
In addition, interrupt from developer replenishing parts 80 to developer roll 68 developer replenishing through striking off contacting between parts 302 and developer roll 68 surfaces.
When having reclaimed from magenta developer that developer roll 68 is peeled off; Then shown in Figure 17 C; In developing apparatus 34, make electrostatic latent image visible in order to utilize the blue-green developer, rotary body 66 rotates 70 ° so that developer replenishing parts 80c becomes relative with developer roll 68.Notice that developer roll 68 is rotated keeping in the blue-green developer that developer replenishing parts 80c supplies with.
Starting from explanation and illustrative purposes provides the above-mentioned explanation of exemplary embodiment of the present invention.Be not intended to exhaustive or the present invention is limited to disclosed exact form.Obviously, can carry out many modifications and modification for those of ordinary skill in the art.Select and explain that above-mentioned exemplary embodiment is in order to explain principle of the present invention and practical application thereof better, therefore make others skilled in the art can understand the various embodiment that the present invention is suitable for and predict the various modifications that are suitable for application-specific.Purpose is to limit scope of the present invention through appended claims and equivalents thereof.
Claims (23)
1. developing apparatus comprises:
A developer holding member, its with developer replenishing on image holding member;
A plurality of developer replenishing parts, it contains the developer of different colours, and in the developer replenishing position with said developer replenishing to said developer holding member;
Transfer member, it is sent to said developer replenishing position successively with said a plurality of developer replenishing parts; And
Peeling member, its from said developer holding member peel off said developer holding member after said image holding member is supplied with said developer residual developer.
2. developing apparatus according to claim 1, wherein,
Said transfer member is rotary body or movable body, and said rotary body or movable body support said a plurality of developer replenishing parts and rotate or displacement around turning axle.
3. developing apparatus according to claim 2, wherein,
Control the anglec of rotation of said rotary body through controller, said peeling member is peeled off developer from said developer holding member.
4. developing apparatus according to claim 1 also comprises:
Recovery part, it reclaims the developer of being peeled off by said peeling member.
5. developing apparatus according to claim 4, wherein,
The said recovery part that is used to reclaim the developer of being peeled off by said peeling member is arranged on and different position, said developer replenishing position.
6. developing apparatus according to claim 5, wherein,
Said recovery part is supported by the said transfer member as the rotary body that rotates around turning axle.
7. developing apparatus according to claim 2 also comprises:
Controller; Thereby its anglec of rotation through the said rotary body of control is selected following state: said a plurality of developer replenishing parts perhaps interrupt the state of developer replenishing to the said developer holding member from the state of said a plurality of developer replenishing parts to said developer holding member supply developer.
8. developing apparatus according to claim 6, wherein,
Control the anglec of rotation of said rotary body through controller, said recovery part reclaims the developer of being peeled off by said peeling member.
9. developing apparatus according to claim 1 also comprises:
A plurality of peeling members, thus it peels off the developer that remains on the said developer holding member through forming to contact with said developer holding member.
10. developing apparatus according to claim 9, wherein,
Said a plurality of peeling member also has following function: thus contact the function of interrupting supplying with to said developer holding member said developer through forming with said developer holding member respectively from said a plurality of developer replenishing parts.
11. developing apparatus according to claim 9, wherein,
Said a plurality of peeling member is respectively magnet.
12. developing apparatus according to claim 1, wherein,
10 average surface roughness of said developer holding member are half the less than the toner volume average particle size, and the center line average roughness of perhaps said developer holding member is less than 1/4th of said toner volume average particle size.
13. developing apparatus according to claim 9, wherein,
Each surface-coated of said a plurality of peeling members is useful on the coating that prevents that developer from adhering to.
14. developing apparatus according to claim 4 also comprises:
Reclaim the developer collecting container, it accommodates the developer that reclaims from said recovery part.
15. developing apparatus according to claim 6, wherein,
Be sent under the state of said developer replenishing position one of in said a plurality of developer replenishing parts at said transfer member; Do not form said recovery part; And forming under the state of said recovery part, said transfer member is with being sent to and different position, said developer replenishing position one of in said a plurality of developer replenishing parts.
16. developing apparatus according to claim 2 also comprises:
A plurality of developer recovery parts; It becomes relative with said peeling member along with moving of said developer replenishing parts, thereby and the degree of tilt that changes with respect to gravity direction through rotation along with said rotary body reclaim the developer of peeling off by said peeling member.
17. developing apparatus according to claim 16, wherein,
Said developer recovery part along with the rotation of said rotary body with the developer replenishing that is reclaimed in said developer replenishing parts.
18. developing apparatus according to claim 4, wherein,
Said developer recovery part is provided with integratedly and reclaims the developer collecting container.
19. an image processing system comprises:
Image holding member;
A developer holding member, its with developer replenishing on said image holding member;
A plurality of developer replenishing parts, it contains the developer of different colours, and in the developer replenishing position with said developer replenishing to said developer holding member;
Transfer member, it is sent to said developer replenishing position successively with said a plurality of developer replenishing parts; And
Peeling member, its from said developer holding member peel off said developer holding member after said image holding member is supplied with said developer residual developer.
20. image processing system according to claim 19, wherein,
Said transfer member is rotary body or movable body, and said rotary body or movable body support said a plurality of developer replenishing parts and rotate or displacement around turning axle.
21. image processing system according to claim 20, wherein,
Control the anglec of rotation of said rotary body through controller, said peeling member is peeled off developer from said developer holding member.
22. image processing system according to claim 19 also comprises:
Recovery part, it reclaims the developer of being peeled off by said peeling member.
23. a developer box, it contains and supplies to the developer in the developer replenishing parts and have recovery approach, wherein,
Said developer replenishing parts the developer replenishing position with said developer replenishing to a developer holding member on so that the image on the image holding member is developed,
Move in the process of the color that supplies to the developer on the said developer holding member with change at said developer replenishing parts; Said recovery approach reclaims the developer of being peeled off by peeling member, said peeling member from said developer holding member peel off said developer holding member after said image holding member is supplied with said developer residual developer.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007341419A JP5104302B2 (en) | 2007-12-28 | 2007-12-28 | Developing device, developer cartridge, and image forming apparatus |
| JP2007-341419 | 2007-12-28 | ||
| JP2007341419 | 2007-12-28 | ||
| JP2008060854A JP4556145B2 (en) | 2008-03-11 | 2008-03-11 | Image forming apparatus |
| JP2008060853 | 2008-03-11 | ||
| JP2008-060854 | 2008-03-11 | ||
| JP2008060853A JP2009216988A (en) | 2008-03-11 | 2008-03-11 | Developing device and image forming apparatus |
| JP2008-060853 | 2008-03-11 | ||
| JP2008060854 | 2008-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101470387A CN101470387A (en) | 2009-07-01 |
| CN101470387B true CN101470387B (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102155976A Active CN101470387B (en) | 2007-12-28 | 2008-09-18 | Developing device, image forming apparatus and developer cartridge |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5104302B2 (en) |
| CN (1) | CN101470387B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011047993A (en) * | 2009-08-25 | 2011-03-10 | Fuji Xerox Co Ltd | Developing device and image forming apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3075668B2 (en) * | 1994-05-24 | 2000-08-14 | 株式会社いすゞセラミックス研究所 | Filter structure in diesel particulate filter |
| CN1278613A (en) * | 1999-06-21 | 2001-01-03 | 株式会社理光 | Developing device and image-forming device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124736A (en) * | 1978-03-20 | 1979-09-27 | Ricoh Co Ltd | Magnetic brush developing device |
| JPS6120961A (en) * | 1984-07-10 | 1986-01-29 | Ricoh Co Ltd | Multicolor developing device |
| JPS61201271A (en) * | 1985-03-04 | 1986-09-05 | Ricoh Co Ltd | Developing device for color selectable monochromatic copying device |
| JPS61254968A (en) * | 1985-05-07 | 1986-11-12 | Ricoh Co Ltd | Developing device for single color copying device which permits color selection |
| JPS6249378A (en) * | 1985-08-29 | 1987-03-04 | Ricoh Co Ltd | Developing device for single color copying machine which permits color selection |
| JPS6355572A (en) * | 1986-08-26 | 1988-03-10 | Ricoh Co Ltd | Developing device for two-component developer |
| JP2638796B2 (en) * | 1987-02-13 | 1997-08-06 | ミノルタ株式会社 | Developing device |
| JPH01108576A (en) * | 1987-10-21 | 1989-04-25 | Minolta Camera Co Ltd | Control method for multicolor image forming device |
| JPH11237775A (en) * | 1998-02-19 | 1999-08-31 | Fuji Xerox Co Ltd | Developing device |
| US6625414B2 (en) * | 2002-01-31 | 2003-09-23 | Kabushiki Kaisha Toshiba | Image forming apparatus with recovery device for recovering color developers |
| JP2006113290A (en) * | 2004-10-14 | 2006-04-27 | Seiko Epson Corp | Image forming apparatus and control method for same |
-
2007
- 2007-12-28 JP JP2007341419A patent/JP5104302B2/en not_active Expired - Fee Related
-
2008
- 2008-09-18 CN CN2008102155976A patent/CN101470387B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3075668B2 (en) * | 1994-05-24 | 2000-08-14 | 株式会社いすゞセラミックス研究所 | Filter structure in diesel particulate filter |
| CN1278613A (en) * | 1999-06-21 | 2001-01-03 | 株式会社理光 | Developing device and image-forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101470387A (en) | 2009-07-01 |
| JP2009162954A (en) | 2009-07-23 |
| JP5104302B2 (en) | 2012-12-19 |
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