CN201054076Y - Developing device for electronic photography imaging apparatus - Google Patents
Developing device for electronic photography imaging apparatus Download PDFInfo
- Publication number
- CN201054076Y CN201054076Y CNU2007200535774U CN200720053577U CN201054076Y CN 201054076 Y CN201054076 Y CN 201054076Y CN U2007200535774 U CNU2007200535774 U CN U2007200535774U CN 200720053577 U CN200720053577 U CN 200720053577U CN 201054076 Y CN201054076 Y CN 201054076Y
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- Prior art keywords
- developer roll
- rigid support
- developing apparatus
- powder
- developing
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- Expired - Lifetime
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- 238000003384 imaging method Methods 0.000 title abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims description 84
- 239000000428 dust Substances 0.000 claims description 28
- 238000005452 bending Methods 0.000 claims description 17
- 235000012054 meals Nutrition 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000003801 milling Methods 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
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- Dry Development In Electrophotography (AREA)
Abstract
The utility module relates to a developing device used in an electronic imaging device. The developing device comprises a power storehouse, a power feeding roller and a developing roller. Two axial ends of the developing roller are respectively supported on the frame of the developing device. The roller body is positioned in a power outlet of the power storehouse. The clearance between one side of the developing roller middle axial and the power outlet is closed by a milling reamer which is back on to the outside surface of the power storehouse and is covered by a spear plate. The milling reamer comprises a rigid bracket and an elastic strip. On a section which is vertical to the middle axial of the developing roller, one end of the rigid bracket is supported on the frame of the developing device and the other end is free suspended. On the same section, one end of the elastic strip is fixed on the free end of the rigid bracket and the other end is provided with a bend end. The bend end keeps external tangent contact with the surface of the developing roller. The developing device can cause that the milling reamer forms the even contact with the whole developing roller in the middle axial direction of the developing roller, thereby getting the even carbon power distribution on the developing roller.
Description
Technical field
The utility model relates to for example developing apparatus of laser printer of electrophotographic image forming, particularly is equipped with to be used to transmit the powder feeding roller of carbon dust and carbon dust is passed to photosensitive drums becomes the developer roll of visual image with the conversion electrostatic latent image developing apparatus.
Background technology
Electrophotographic image forming, for example laser printer is the photosensitive drums that has predetermined potential by the laser scanning irradiation, forms electrostatic latent image on its surface.This electrostatic latent image is developed with predetermined carbon dust, and then will be transferred on the paper, the image fixing of transfer printing acquisition, become the visual image that naked eyes can be observed afterwards,---signal---conversion between the image that realizes image thus through the image that develops.
Common laser printer is provided with charging roller, photosensitive drums, laser scanning mechanism, developing apparatus, transfer roll and fixing roller etc. in its casing.
Photosensitive drums charges to predetermined potential by charging roller, and response is formed corresponding to the electrostatic latent image for the treatment of print image by laser scanning mechanism emitted laser bundle.
Store carbon dust in the container that developing apparatus is established within it, and utilize powder feeding roller and developer roll carbon dust to be sent to the photosensitive drums that has electrostatic latent image.
The visual image that forms on the photosensitive drums is transferred on the paper between photosensitive drums and the transfer roll by transfer roll, utilizes fixing roller that the carbon dust image on the paper is given photographic fixing at last.
Above-mentioned developing apparatus, utilize the powder storehouse to bear the storage task of carbon dust on the one hand, on the other hand, powder feeding roller and developer roll are arranged at the inside of developing apparatus simultaneously, realize carbon dust transmission between developer roll and photosensitive drums by powder feeding roller and developer roll, finish the conversion between photosensitive drums electrostatic latent image and the visual image in transhipment between powder feeding roller and the developer roll and carbon dust.Developing apparatus comprises powder storehouse, powder feeding roller and developer roll on the whole.Can achieve a fixed connection by bearing pin and pin-and-hole between the graphics processing unit at itself and photosensitive drums place, what this mode obtained is the integral type laser printer processing box; Perhaps respectively as the individual components manufacturing, separate accumulating or sale, and fit assembling when installation, what this mode obtained is split type laser printer processing box.
For example, domestic application for a patent for invention CN00128815.6 discloses a kind of developing apparatus.This developing apparatus utilizes a kind of low friction scraper to adjust the thickness of carbon dust layer on the developer roll.An edge of the long side direction of this low friction scraper contacts with the roll surface of developer roll, and relative edge contacts with biasing member.The elastic acting force perpendicular to the developer roll axis that applies by biasing member makes low friction scraper be resisted against the developer roll roll surface.Biasing member is the arciform bow spring of likeness in form, and the outside at its bow abdomen middle part removably is fixed on the developing device frame, and bow body two ends are resisted against the relative edge of aforementioned low friction scraper along last.Biasing member is about 1400g to the elastic acting force numerical value that low friction scraper applies.Thus, biasing member is by the contact of bow body two ends with low friction scraper, two contact points of the elastic force of bow spring generation by its end are passed on the low friction scraper, impel low friction scraper to adjust in real time between itself and the developer roll surface, reach and keep the uniform purpose of developer roll surface carbon powder layer thickness because of developer roll rotates the gap variation that forms.Yet, because having, the workplace of developer roll is not shorter than for example length of paper fabric width of recording medium, adjust of the face length adaptation of the length of the mission requirements low friction scraper of carbon dust layer thickness on the developer roll entire working surface with developer roll, therefore, the elastic force transmitting effect mode of this two point form, especially spread out of under near the state that a little is positioned at the low friction scraper two ends at acting force, center section between the acting force receiving station of low friction scraper will bear uneven acting force, cause low friction scraper stress maldistribution easily and deformation takes place, for example its middle part forms on perpendicular to the direction on long limit and upwarps or recessed, and then cause that developer roll surface carbon powder layer thickness becomes inhomogeneous along the distribution of developer roll on axially, the print image shade that becomes is differed.
On the said structure basis, also have further improvement to low friction scraper, spongy layer for example is set with sponge is outside to contact the thin slice that developing roller surface is provided for controlling powder outlet quantity being positioned on low friction scraper.Yet also there is certain shortcoming in this adjustment, shows as in its developer roll rotary course, and spongy layer and thin slice have the movement tendency that departs from the developer roll surface under the effect of developer roll skin-friction force.Series of solutions is to depart from the direction of motion on developer roll surface at spongy layer and thin slice, on the low friction scraper support anti-slip component is set, and departs from the motion on developer roll surface to hinder spongy layer and thin slice.But,, use bow spring near the low friction scraper stress point, to form big pressure easily, and then produce big friction force as what above introduce.This friction force causes thin slice to produce stress concentrated and generation cripling or bending easily, causes uneven contact condition between low friction scraper and the developer roll, causes print quality to descend.
The utility model content
The utility model purpose is to provide for example developing apparatus of laser printer of a kind of electrophotographic image forming, the thickness of carbon dust layer reaches uniform state on this developing apparatus scalable developer roll, and its scraper can obtain basic uniform stress distribution at self length direction.
According to above-mentioned purpose, the utility model used for electronic photography image forming apparatus developing apparatus comprises by powder storehouse seat and surrounds powder storehouse, the powder feeding roller that can transmit carbon dust form and can adsorb carbon dust and it is passed to the developer roll of photosensitive drums place photosensitive unit.Two axle heads of developer roll are supported on respectively on the respective frame of developing apparatus.The developer roll body of roll is arranged in the meal outlet in powder storehouse.Developer roll axis one side is sealed by the powder delivery cutter with the gap between the meal outlet.The powder delivery knife back is covered by the cover plate that connects developing device frame the outside surface in powder storehouse.The powder delivery cutter is made of rigid support and flexure strip.On the cross section perpendicular to the developer roll axis, rigid support one end bearing is on developing device frame, and the other end freely suspends.On the cross section perpendicular to the developer roll axis, flexure strip one end is fixed on the rigid support free end, and the other end has the bending termination.The bending termination of flexure strip keeps circumscribed contact at bending part with the developer roll surface.
Preferably, aforementioned electronic photograph imaging device developing apparatus, the overbending direction of its flexure strip bending termination points to the downstream by the upstream of developer roll sense of rotation.
Preferably, aforementioned electronic photograph imaging device developing apparatus on the outside surface in powder storehouse, is provided with at least one projection of extending along back to the direction in powder storehouse at its rigid support.Cover plate is provided with the shrinkage pool of quantity correspondence corresponding to this protruding position.This projection is removably inserted in the shrinkage pool.The end of shrinkage pool along the developer roll diametric(al) back to the developer roll axis keeps the compressing contact with projection.
According to qualifications, aforementioned developing apparatus, its shrinkage pool runs through cover plate in the direction of insertion of projection.
Preferably, aforementioned electronic photograph imaging device developing apparatus, its protruding quantity is two, they are symmetrically distributed with respect to the middle part of rigid support length direction.
Better, aforementioned electronic photograph imaging device developing apparatus, one of its projection equates to the distance of the nearest end of the middle part of rigid support length direction and rigid support length direction.
Used for electronic photography image forming apparatus developing apparatus of the present utility model, by adopting simultaneously at the upwardly extending powder delivery cutter that constitutes by rigid support and flexure strip of developer roll axle, flexure strip is fixedly supported on the rigid support, and then the bending termination of passing through flexure strip has reached the purpose that obtains even carbon dust distribution in the contact site with the circumscribed contact of developer roll surface formation elasticity.And, a plurality of projectioies further are set on powder delivery cutter rigid support and the form of corresponding a plurality of shrinkage pools on the cover board is set, the contention effect from cover plate that powder delivery cutter rigid support is transmitted by projection obtains along the acting force of developer roll diametric(al) sensing developer roll axis, and then on the basis of certain elasticity compressing that powder delivery cutter flexure strip self is had, further the synergy by cover plate makes powder delivery cutter flexure strip form uniform the contact with whole developer roll on the developer roll central axis direction; In addition, when reclaiming developing apparatus,, can adjust the contact pressure of powder delivery cutter flexure strip and developer roll corresponding site by the projection of change regional area correspondence and the position and the size of shrinkage pool; They are three years old, because the cover plate shrinkage pool increases with the contact point between the powder delivery cutter rigid support, strengthened powder delivery cutter rigid support and accepted the lifting surface area of cover plate compressing, and then reduced the deformation extent of powder delivery cutter rigid support and cover plate contact portion, made powder delivery cutter rigid support stress distribution be tending towards balanced; At last, become original single-point locator meams that the side grafting of developing device frame and bow spring bow is touched, be multiple spot contact locator meams of the present utility model, thereby changed single contact point mode of original developing device frame and bow spring, reduce the acting force that the developing device frame part is born, reduced the deformation extent of developing device frame and cover plate contact portion.
The drawing explanation
Fig. 1 the utility model used for electronic photography image forming apparatus developing apparatus embodiment one skeleton view.
Fig. 2 the utility model used for electronic photography image forming apparatus developing apparatus embodiment one STRUCTURE DECOMPOSITION synoptic diagram.
Powder delivery cutter and cover plate assembly structure synoptic diagram one among Fig. 3 the utility model developing apparatus embodiment one.
Powder delivery cutter and cover plate assembly structure synoptic diagram two among Fig. 4 the utility model developing apparatus embodiment one.
Fig. 5 a the utility model developing apparatus embodiment one cover plate skeleton view one.
Powder delivery cutter skeleton view one among Fig. 5 b the utility model developing apparatus embodiment one.
Fig. 6 a the utility model developing apparatus embodiment one cover plate skeleton view two.
Powder delivery cutter skeleton view two among Fig. 6 b the utility model developing apparatus embodiment one.
The powder delivery cutter is with developer roll mated condition synoptic diagram one among Fig. 7 a the utility model developing apparatus embodiment one.
The powder delivery cutter is with developer roll mated condition synoptic diagram two among Fig. 7 b the utility model developing apparatus embodiment one.
The powder delivery cutter is with developer roll mated condition synoptic diagram one among Fig. 8 a the utility model developing apparatus embodiment two.
The powder delivery cutter is with developer roll mated condition synoptic diagram two among Fig. 8 b the utility model developing apparatus embodiment two.
Fig. 9 the utility model used for electronic photography image forming apparatus developing apparatus embodiment two skeleton views.
Embodiment
Embodiment one
Referring to Fig. 1～7, show the relevant view of the utility model used for electronic photography image forming apparatus developing apparatus embodiment one and corresponding construction parts thereof.
This developing apparatus A comprises that structurally at least one outer wall by powder storehouse seat surrounds airtight powder storehouse 1, powder feeding roller and the developer roll 2 that forms.1 inside, powder storehouse has the cavity that can store carbon dust.The powder feeding roller (not shown) is wholy set in the inside in powder storehouse 1, two axle head is supported on respectively on two opposed bulkheads 101,102 of powder storehouse seat, it can be rotated under the driving force effect that printer provides, and then near the carbon dust of 1 inside, powder storehouse is sent to developer roll 2 from distance developer roll 2 positions far away.The body of roll of developer roll 2 is arranged in the meal outlet in powder storehouse 1.The part of its body of roll is positioned at powder storehouse 1, and a part then is exposed to 1 outside, powder storehouse.The axis of developer roll 2 is parallel to powder feeding roller, and two axle head is supported on respectively on two opposed bulkheads 101,102 of powder storehouse seat.Keep predetermined spacing distance between the bulkhead 101,102 on the central axis direction of developer roll 2, the length of this distance adapts to developer roll 2 ALs, and so that the predetermined space that holds developer roll 2 to be provided, their surface is all perpendicular to the axis of developer roll 2.
Under confined state, this developing apparatus A integral body is positioned in the respective frame or frame (not shown) of laser printer, and keeps developer roll 2 to belong to the bulging face of the photosensitive drums of photosensitive unit towards the exposed part adjacency outside the meal outlet.Developer roll 2 can rotate under the driving force effect that laser printer provides, the carbon dust that powder feeding roller is transmitted is adsorbed on the cylinder roller surface of self with electrostatic means, regulate the carbon dust layer thickness and the distributing homogeneity of roll surface simultaneously by powder delivery cutter 4, reach after the predetermined requirement, carbon dust is transferred to the bulging face of potential difference as the photosensitive drums on its carbon dust suction-operated basis, and then by the electrostatic latent image on the carbon dust covering photosensitive drums drum face, electrostatic latent image is converted into the visible carbon dust image of vision the most at last.
Referring to Fig. 2～7, developer roll 2 roll surface tops are sealed by powder delivery cutter 4 with the gap between the meal outlet.Simultaneously powder delivery cutter 4 and developer roll 2 radially between the roll surface of top in developer roll 2 axial length range, under the state that developer roll 2 rotates, keep the relation of mutual sliding friction.In the present embodiment, powder delivery cutter 4 constitutes (seeing shown in Fig. 7 a, the b) by the rigid support 405 and the flexure strip 406 of stainless steel and so on material preparation.On the cross section perpendicular to developer roll 2 axis, rigid support 405 1 end bearings are on the developing apparatus A-Frame, and the other end freely suspends.On same cross-sectional, flexure strip 406 1 ends are fixed on the free end of rigid support 405, and the other end then has bending termination 407.The bending termination 407 of flexure strip 406 keeps circumscribed contact condition at bending part with developer roll 2 surfaces.The overbending direction of flexure strip bending termination 407 points to downstream (seeing the sense of rotation α of developer roll 2 shown in Fig. 7 b) by the upstream of the sense of rotation of developer roll 2.
Under last configuration state, the carbon dust of 1 inside, powder storehouse is promptly carried powder storehouse 1 by the gap between powder delivery cutter 4 and the developer roll 2 top roll surfaces outside by the micropore that developer roll 2 spreads all over roll surface, and then is transferred to the photosensitive drums drum face that belongs to photosensitive unit.Be positioned at powder delivery cutter 4 tops, the bulkhead 105 that its surface is parallel to developer roll 2 axis extends one section suitable length towards the outside in powder storehouse 1.After the gap between powder delivery cutter 4 sealing developer roll 2 roll surface tops and meal outlet, powder delivery cutter 4 covers (see figure 1) back to the outside surface in powder storehouse 1 by cover plate 3, so powder cutter 4 is coated in the cover plate 3.In the plane perpendicular to developer roll 2 axis, cover plate 3 one ends are resisted against on the bulkhead 105 in powder storehouse 1.Keeping in touch with bulkhead 105 on the diametric(al) of developer roll 2 away from an end of developer roll 2 axis against being cover plate 3 here is so that provide the acting force fulcrum by bulkhead 105 to cover plate 3 on the diametric(al) of developer roll 2; Also can be to form the contact that is parallel to this direction on the diametric(al) of developer roll 2, for example cover plate 3 be supported on the bulkhead 101,102 by the bearing pin 301,302 at its two ends, and then no longer provides the acting force fulcrum by bulkhead 105 to cover plate 3.
Referring to Fig. 2～6, cover plate 3 inserts the pin-and-hole 103,104 that is arranged on the bulkhead 101,102 respectively by the bearing pin 301,302 at its two ends, and is fixed in bulkhead 105 belows in powder storehouse 1, and the outside surface of powder delivery cutter 4 back to powder storehouse 1 covered.Meanwhile,, on the outside surface in powder storehouse 1, be provided with along back to outward extending two projectioies 401,402 of the direction in powder storehouse 1 at the rigid support 405 of powder delivery cutter 4.Cover plate 3 is respectively arranged with the quantity that runs through its position, place shrinkage pool 303,304 corresponding to projection 401,402 at the position corresponding to two projectioies 401,402.Two projectioies 401,402 are all inserted in the shrinkage pool 303,304 removably accordingly.The end of shrinkage pool 303 along developer roll 2 diametric(al)s back to developer roll 2 axis keeps the compressing contact with projection 401, and the same end of shrinkage pool 304 along developer roll 2 diametric(al)s back to developer roll 2 axis keeps the compressing contact with projection 402.Middle position with respect to rigid support 405 length directions, two projectioies 401,402 are symmetrical distribution, and one of two projectioies 401,402, i.e. projection 401 keeps equating to the distance of the nearest end 403 of the distance of rigid support 405 length direction middle positions and rigid support 405 length directions; Projection 402 keeps equating to the distance of the nearest end 404 of the distance of rigid support 405 length direction middle positions and rigid support 405 length directions.Like this, the rigid support 405 of powder delivery cutter 4 has just obtained by evenly distributing along rigid support 405 self length direction that projection 401,402 and shrinkage pool 303,304 cooperatively interact and provided, point to the acting force of developer roll 2 axis by developer roll 2 diametric(al)s, and then make the flexure strip bending termination 407 be fixed on the rigid support 405 on self length direction, form contact uniformly with developer roll 2 surfaces, impel the carbon dust layer after regulating through flexure strip bending termination 407 to obtain homogeneous thickness.
Embodiment two
On the foregoing description one basis, can also adopt more succinct technical scheme, i.e. the developing apparatus A of embodiment two descriptions reaches purpose of design of the present utility model.Referring to Fig. 8～9, show the relevant view of the utility model used for electronic photography image forming apparatus developing apparatus embodiment two and corresponding construction parts thereof.
This developing apparatus A structurally has essentially identical feature with the technical scheme that embodiment one describes, and the Reference numeral that therefore is same as embodiment one is continued to use in embodiment two accompanying drawings.Its difference with embodiment one shows as, and has excised two projectioies 401,402 on the rigid support 405 that is present in powder delivery cutter 4 among the embodiment one and two shrinkage pools 303,304 of cover plate 3, and only the free end at rigid support 405 is provided with flexure strip 406.Flexure strip 406 contacts needed anchorage force with the compressing between developer roll 2 surfaces and is provided by the rigid support 405 of powder delivery cutter 4 fully.Like this, when developer roll 2 was done α rotation counterclockwise, the carbon dust layer after flexure strip bending termination 407 is regulated can also obtain homogeneous thickness.
Claims (6)
1. used for electronic photography image forming apparatus developing apparatus, comprise by powder storehouse seat and surround the powder storehouse that forms, can transmit carbon dust powder feeding roller and can adsorb carbon dust and it is passed to the developer roll of photosensitive drums place photosensitive unit, two axle heads of described developer roll are supported on respectively on the respective frame of described developing apparatus, the described developer roll body of roll is arranged in the meal outlet in described powder storehouse, described developer roll axis one side is sealed by the powder delivery cutter with the gap between the described meal outlet, the described powder delivery knife back is covered by the cover plate that connects described developing device frame the outside surface in described powder storehouse, it is characterized in that described powder delivery cutter is made of rigid support and flexure strip, described rigid support on perpendicular to the cross section of described developer roll axis an end bearing on described developing device frame, its other end freely suspends, described flexure strip end on perpendicular to the cross section of described developer roll axis is fixed in described rigid support free end, its other end has the bending termination, and described flexure strip bending termination keeps circumscribed contact at bending part with described developer roll surface.
2. used for electronic photography image forming apparatus developing apparatus according to claim 1 is characterized in that the overbending direction of described flexure strip bending termination points to the downstream by the upstream of described developer roll sense of rotation.
3. used for electronic photography image forming apparatus developing apparatus according to claim 1 and 2, it is characterized in that described rigid support is provided with at least one projection of extending along back to the direction in described powder storehouse back to the outside surface in described powder storehouse, described cover plate is provided with the shrinkage pool of quantity correspondence corresponding to the position of described projection, described projection is removably inserted in the described shrinkage pool, and the end of described shrinkage pool along described developer roll diametric(al) back to described developer roll axis keeps the compressing contact with described projection.
4. used for electronic photography image forming apparatus developing apparatus according to claim 3 is characterized in that described shrinkage pool runs through described cover plate in the direction of insertion of described projection.
5. used for electronic photography image forming apparatus developing apparatus according to claim 4, the quantity that it is characterized in that described projection is two, they are symmetrically distributed with respect to the middle part of described rigid support length direction.
6. used for electronic photography image forming apparatus developing apparatus according to claim 5 is characterized in that one of described projection equates to the distance of the nearest end of the middle part of described rigid support length direction and described rigid support length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200535774U CN201054076Y (en) | 2007-06-26 | 2007-06-26 | Developing device for electronic photography imaging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200535774U CN201054076Y (en) | 2007-06-26 | 2007-06-26 | Developing device for electronic photography imaging apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201054076Y true CN201054076Y (en) | 2008-04-30 |
Family
ID=39393738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200535774U Expired - Lifetime CN201054076Y (en) | 2007-06-26 | 2007-06-26 | Developing device for electronic photography imaging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201054076Y (en) |
-
2007
- 2007-06-26 CN CNU2007200535774U patent/CN201054076Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080430 |