CN219811129U - Process cartridge and image forming apparatus - Google Patents
Process cartridge and image forming apparatus Download PDFInfo
- Publication number
- CN219811129U CN219811129U CN202223514559.5U CN202223514559U CN219811129U CN 219811129 U CN219811129 U CN 219811129U CN 202223514559 U CN202223514559 U CN 202223514559U CN 219811129 U CN219811129 U CN 219811129U
- Authority
- CN
- China
- Prior art keywords
- developing sleeve
- wall
- cylindrical
- length direction
- concave parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 15
- 230000008569 process Effects 0.000 title claims description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims description 13
- 238000007790 scraping Methods 0.000 claims description 10
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
The utility model discloses a processing box and an image forming device, wherein the outer wall of a cylindrical developing sleeve is irregularly provided with concave parts along the length direction, and the density of the concave parts per unit area from the middle part to the two side end parts of the outer wall of the cylindrical developing sleeve in the length direction is gradually increased; the length direction of the outer wall of the cylindrical developing sleeve gradually deepens from the middle part to the concave parts at the two side end parts; the concave parts are oblong in plan view, and adjacent concave parts are not overlapped and distributed in a staggered manner; the bottom surfaces of the adjacent concave parts are alternately distributed in an arc shape and a V shape; through the design aiming at the concave part, the supply quantity of the toner along the length direction of the developing roller is more uniform, the problem that the middle part is more than the two ends is avoided, and the image concentration along the length direction of the developing roller is more uniform; the scraper mechanism is arranged to scrape off the redundant toner adsorbed on the outer wall of the cylindrical developing sleeve, so that the toner adsorbed on the outer wall of the cylindrical developing sleeve is ensured to be uniformly distributed.
Description
Technical Field
The utility model relates to the technical field of image forming devices, in particular to a processing box and an image forming device.
Background
In a printer in which a process cartridge including a developing device including a developing roller capable of supplying a developer carried on a developing sleeve to a developing area between a photosensitive drum and the developing sleeve disposed opposite to each other for image formation is used, there is a problem in that a toner supply amount on the developing roller is more in a middle portion in a longitudinal direction than in both ends thereof, causing uneven image density along the longitudinal direction of the developing roller, and therefore, a process cartridge and an image forming apparatus which are highly practical in design and improve uniformity of toner supply amount distribution in the longitudinal direction of the developing roller surface so that image density is more uniform along the longitudinal direction of the developing roller are necessary.
Disclosure of Invention
The present utility model is directed to a process cartridge and an image forming apparatus that solve the problems set forth in the background art described above.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model discloses a processing box, at least including developing device, developing device includes the developing roller at least, the developing roller includes metal core, cylindric magnet roller and cylindric developing sleeve, cylindric magnet roller is fixed cup joints in the metal core outside, cylindric developing sleeve cup joints in cylindric magnet roller outside, both ends have been cup jointed scraper mechanism about the metal core, and scraper mechanism lower extreme laminating is on cylindric developing sleeve outer wall, cylindric developing sleeve outer wall has irregularly seted up the recess along length direction.
According to the above technical solution, the density of the concave portion per unit area gradually increases from the middle portion to the both side end portions in the longitudinal direction of the outer wall of the cylindrical developing sleeve.
According to the above technical scheme, the length direction of the outer wall of the cylindrical developing sleeve is from the middle part to the two side end parts, and the depth of the concave part is gradually increased.
According to the technical scheme, the concave portions are oblong in top view, and adjacent concave portions are not overlapped and distributed in a staggered mode.
According to the technical scheme, the bottom surfaces of the adjacent concave parts are alternately distributed in an arc shape and a V shape.
According to the technical scheme, the scraper mechanism comprises support plates sleeved at the left end and the right end of the metal core, transverse plates are transversely fixed at the upper ends of the inner side surfaces of the support plates at the left side and the right side, rectangular mounting grooves are formed in the middle of the bottom surfaces of the transverse plates, scrapers are inserted in the rectangular mounting grooves, and connecting structures are uniformly assembled between the upper ends of the scrapers and the top surfaces of the rectangular mounting grooves.
According to the technical scheme, the mounting groove is set up in the embedding of rectangle mounting groove upper edge, scraper blade upper end integrated into one piece has the connecting plate, the connecting plate peg graft in corresponding in the mounting groove, the connecting plate outer wall runs through there is fixing bolt, and fixing bolt terminal spiro union is on the mounting groove bottom surface.
An image forming apparatus including at least a photosensitive drum, a charging device, and a developing device, characterized in that: has the developing device.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the utility model, the outer wall of the cylindrical developing sleeve is irregularly provided with concave parts along the length direction, and the density of the concave parts per unit area from the middle part to the two side end parts of the outer wall of the cylindrical developing sleeve in the length direction is gradually increased; the length direction of the outer wall of the cylindrical developing sleeve gradually deepens from the middle part to the concave parts at the two side end parts; the concave parts are oblong in plan view, and adjacent concave parts are not overlapped and distributed in a staggered manner; the bottom surfaces of the adjacent concave parts are alternately distributed in an arc shape and a V shape; through the design aiming at the concave part, the supply quantity of the toner along the length direction of the developing roller is more uniform, the problem that the middle part is more than the two ends is avoided, and the image concentration along the length direction of the developing roller is more uniform; the scraper mechanism is arranged to scrape off the redundant toner adsorbed on the outer wall of the cylindrical developing sleeve, so that the toner adsorbed on the outer wall of the cylindrical developing sleeve is ensured to be uniformly distributed.
(2) According to the utility model, the scraping plate mechanism is used for fixing the scraping plate on the top surface of the rectangular mounting groove through the connecting structure, the connecting plate can be conveniently detached from the mounting groove through detaching the fixing bolt, the scraping plate is convenient to replace, and the operation is more convenient.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic view of the distribution structure of the recessed portion of the outer wall of the cylindrical developing sleeve of the present utility model;
fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
In the figure: the 1-developing roller comprises a metal core, a 2-cylindrical magnetic roller, a 3-cylindrical developing sleeve, a 31-concave part, a 4-scraping plate mechanism, a 41-supporting plate, a 42-transverse plate, a 43-rectangular mounting groove, a 44-scraping plate, a 45-connecting structure, a 451-mounting groove, a 452-connecting plate and 453-fixing bolts.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides the following technical solutions: the processing box at least comprises a developing device, the developing device at least comprises a developing roller, the developing roller comprises a metal core 1, a cylindrical magnetic roller 2 and a cylindrical developing sleeve 3, the cylindrical magnetic roller 2 is fixedly sleeved on the outer side of the metal core 1, the cylindrical developing sleeve 3 is sleeved on the outer side of the cylindrical magnetic roller 2, scraper mechanisms 4 are sleeved at the left end and the right end of the metal core 1, the lower ends of the scraper mechanisms 4 are attached to the outer wall of the cylindrical developing sleeve 3, and concave parts 31 are irregularly formed in the outer wall of the cylindrical developing sleeve 3 along the length direction.
The outer wall of the cylindrical developing sleeve 3 is irregularly provided with concave parts 31 along the length direction, and the density of the concave parts 31 per unit area from the middle part to the two side end parts of the outer wall of the cylindrical developing sleeve 3 in the length direction is gradually increased; the length direction of the outer wall of the cylindrical developing sleeve 3 gradually deepens from the intermediate portion to the depth of the both side end recessed portions 31; the concave parts 31 are oblong in plan view, and adjacent concave parts 31 are not overlapped and distributed in a staggered manner; the bottom surfaces of the adjacent concave parts 31 are alternately distributed in an arc shape and a V shape; by the above design for the concave portion 31, the supply amount of the toner in the length direction of the developing roller is more uniform, the problem that the middle part is more than the two ends is avoided, and the image density in the length direction of the developing roller is more uniform; the scraper mechanism 4 is arranged to scrape off the excessive toner adsorbed on the outer wall of the cylindrical developing sleeve 3, so that the toner adsorbed on the outer wall of the cylindrical developing sleeve 3 is ensured to be uniformly distributed.
Specifically, the density per unit area of the concave portion 31 gradually increases from the middle portion to both side end portions in the longitudinal direction of the outer wall of the cylindrical developing sleeve 3, and the amount of toner adsorbed at both side end portions in the longitudinal direction of the outer wall of the cylindrical developing sleeve 3 is increased, so that the amount of toner adsorbed at the middle portion of the outer wall of the cylindrical developing sleeve 3 is more equalized.
Specifically, the depth of the concave portion 31 gradually increases from the middle portion to both side end portions in the longitudinal direction of the outer wall of the cylindrical developing sleeve 3, and the amount of toner adsorbed at both side end portions in the longitudinal direction of the outer wall of the cylindrical developing sleeve 3 is increased, so that the amount of toner adsorbed at the middle portion of the outer wall of the cylindrical developing sleeve 3 is more equalized.
Specifically, the concave portions 31 are oblong in plan view, and adjacent concave portions 31 are not overlapped with each other and are alternately distributed; the bottom surfaces of the adjacent concave parts 31 are alternately distributed in an arc shape and a V shape; the strength of the concave portion 31 for adsorbing and accommodating the toner is improved.
Specifically, the scraping plate mechanism 4 comprises supporting plates 41 sleeved at the left end and the right end of the metal core 1, transverse plates 42 are transversely fixed at the upper ends of the inner side surfaces of the supporting plates 41 at the left side and the right side, rectangular mounting grooves 43 are formed in the middle of the bottom surfaces of the transverse plates 42, scraping plates 44 are inserted into the rectangular mounting grooves 43, and connecting structures 45 are uniformly assembled between the upper ends of the scraping plates 44 and the top surfaces of the rectangular mounting grooves 43.
Specifically, the upper edge of the rectangular mounting groove 43 is embedded and provided with a mounting groove 451, the upper end of the scraper 44 is integrally formed with a connecting plate 452, the connecting plate 452 is inserted into the corresponding mounting groove 451, the outer wall of the connecting plate 452 is penetrated with a fixing bolt 453, and the tail end of the fixing bolt 453 is in threaded connection with the bottom surface of the mounting groove 451.
The connecting plate 452 can be conveniently detached from the mounting groove 451 by detaching the fixing bolt 453, so that the scraper 44 can be conveniently replaced, and the operation is more convenient.
An image forming apparatus includes at least a photosensitive drum, a charging device, and a developing device.
Working principle:
the outer wall of the cylindrical developing sleeve 3 is irregularly provided with the concave parts 31 along the length direction, and the density of the concave parts 31 per unit area from the middle part to the two side end parts of the outer wall of the cylindrical developing sleeve 3 in the length direction is gradually increased; the length direction of the outer wall of the cylindrical developing sleeve 3 gradually deepens from the intermediate portion to the depth of the both side end recessed portions 31; the concave parts 31 are oblong in plan view, and adjacent concave parts 31 are not overlapped and distributed in a staggered manner; the bottom surfaces of the adjacent concave parts 31 are alternately distributed in an arc shape and a V shape; by the above design for the concave portion 31, the supply amount of the toner in the length direction of the developing roller is more uniform, the problem that the middle part is more than the two ends is avoided, and the image density in the length direction of the developing roller is more uniform; the scraper mechanism 4 is arranged to scrape off the excessive toner adsorbed on the outer wall of the cylindrical developing sleeve 3, so that the toner adsorbed on the outer wall of the cylindrical developing sleeve 3 is ensured to be uniformly distributed; the scraper blade mechanism is fixed on the top surface of the rectangular mounting groove through the connecting structure, the connecting plate 452 can be conveniently detached from the mounting groove 451 through the detaching fixing bolt 453, the scraper blade 44 is convenient to replace, and the operation is more convenient.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The processing box at least comprises a developing device and is characterized in that: the developing device at least comprises a developing roller, the developing roller comprises a metal core (1), a cylindrical magnetic roller (2) and a cylindrical developing sleeve (3), the cylindrical magnetic roller (2) is fixedly sleeved on the outer side of the metal core (1), the cylindrical developing sleeve (3) is sleeved on the outer side of the cylindrical magnetic roller (2), scraping plate mechanisms (4) are sleeved at the left end and the right end of the metal core (1), the lower ends of the scraping plate mechanisms (4) are attached to the outer wall of the cylindrical developing sleeve (3), and concave portions (31) are irregularly formed in the outer wall of the cylindrical developing sleeve (3) along the length direction.
2. A process cartridge according to claim 1, wherein: the density of the concave parts (31) per unit area is gradually increased from the middle part to the two side end parts in the length direction of the outer wall of the cylindrical developing sleeve (3).
3. A process cartridge according to claim 1, wherein: the length direction of the outer wall of the cylindrical developing sleeve (3) is from the middle part to the two side end parts, and the depth of the concave part (31) is gradually increased.
4. A process cartridge according to claim 1, wherein: the concave parts (31) are oblong in plan view, and adjacent concave parts (31) are not overlapped and distributed in a staggered manner.
5. A process cartridge according to claim 1, wherein: the bottom surfaces of the adjacent concave parts (31) are alternately distributed in an arc shape and a V shape.
6. A process cartridge according to claim 1, wherein: the scraper mechanism (4) comprises supporting plates (41) sleeved at the left end and the right end of the metal core (1), transverse plates (42) are transversely fixed at the upper ends of the inner side surfaces of the supporting plates (41), rectangular mounting grooves (43) are formed in the middle of the bottom surfaces of the transverse plates (42), scrapers (44) are inserted in the rectangular mounting grooves (43), and connecting structures (45) are uniformly arranged at positions between the upper ends of the scrapers (44) and the top surfaces of the rectangular mounting grooves (43).
7. A process cartridge according to claim 6, wherein: the utility model discloses a scraper blade, including rectangle mounting groove (43), scraper blade (44), connecting plate (452) have been seted up in embedding of rectangle mounting groove (43) upper edge, scraper blade (44) upper end integrated into one piece has connecting plate (452), connecting plate (452) are pegged graft in corresponding in mounting groove (451), fixing bolt (453) have been run through to connecting plate (452) outer wall, and fixing bolt (453) terminal spiro union is on mounting groove (451) bottom surface.
8. An image forming apparatus including at least a photosensitive drum, a charging device, and a developing device, characterized in that: has a developing device as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223514559.5U CN219811129U (en) | 2022-12-28 | 2022-12-28 | Process cartridge and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223514559.5U CN219811129U (en) | 2022-12-28 | 2022-12-28 | Process cartridge and image forming apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219811129U true CN219811129U (en) | 2023-10-10 |
Family
ID=88211223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223514559.5U Active CN219811129U (en) | 2022-12-28 | 2022-12-28 | Process cartridge and image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219811129U (en) |
-
2022
- 2022-12-28 CN CN202223514559.5U patent/CN219811129U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1165818C (en) | Image developing apparatus, imaging box electronic photographic image forming device and frame of developing parts | |
| KR101150615B1 (en) | Ink developer foil | |
| EP1217468A3 (en) | Remanufacturing method for process cartridge | |
| DE69722172T2 (en) | System and method for detecting the level of toner | |
| CN103959178A (en) | Cartridge | |
| CN219811129U (en) | Process cartridge and image forming apparatus | |
| CN103425018A (en) | Developing device, process cartridge, and image forming apparatus | |
| EP0723209A1 (en) | Development apparatus | |
| KR20080111704A (en) | Developing unit and image forming apparatus having the same | |
| CN211318998U (en) | Processing box | |
| CN214151395U (en) | Processing box | |
| CN205003444U (en) | Developing box | |
| CN207895229U (en) | Powder outlet cutter and Delevoping cartridge | |
| JPS59141183A (en) | Charging device for electrophotographic copying machine | |
| US20040146317A1 (en) | Wet electrophotographic printer | |
| CN205721083U (en) | Developing unit, handle box and imaging device | |
| CN205750284U (en) | A kind of Delevoping cartridge | |
| CN219533629U (en) | Side sleeve | |
| CN201654469U (en) | Developing cartridge and processing cartridge containing same | |
| CN207268822U (en) | A kind of useless powder scraper plate for toner cartridge | |
| CN210573205U (en) | Powder bin scraper structure of electronic surface single printer | |
| CN214151392U (en) | Developing box | |
| CN205594311U (en) | Developing cartridge and process cartridge | |
| CN216772198U (en) | Downward-bending high-strength powder outlet knife | |
| CN212573137U (en) | Through-hole solder paste printing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |