CN205028028U - Developing box - Google Patents
Developing box Download PDFInfo
- Publication number
- CN205028028U CN205028028U CN201520731395.2U CN201520731395U CN205028028U CN 205028028 U CN205028028 U CN 205028028U CN 201520731395 U CN201520731395 U CN 201520731395U CN 205028028 U CN205028028 U CN 205028028U
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- CN
- China
- Prior art keywords
- developer
- developer roll
- contact site
- housing
- casing
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- 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.)
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Abstract
The utility model relates to a developing box, include: store the casing of developer, support in the developer roll at casing both ends, install the powder sword of developer thickness on housing face control developer roll. Go out the powder sword including install in the knife rest at casing both ends with fix the blade on the knife rest, the blade include with the contact site of developer roll contact, with the flexion of coupling portion, connecting coupling portion and the contact site of knife rest coupling, coupling portion from housing face to casing inside extend with developer roll contact and the effect that receives the developer roll to store one side elastic deformation of developer in the casing, solved and extrude that whitewashed sword uses that whitewashed sword warp and problem that the developer that appears leaked because the developer is piled up in the cavity that is formed by a powder sword, developer roll, casing.
Description
Technical field
The utility model relates to a kind of Delevoping cartridge, particularly relates to the powder outlet cutter of Delevoping cartridge.
Background technology
Imaging device, or claim electrophotographic image forming, image processing system, be the equipment being formed image by electrophotographic image forming principle on recording materials.Such as, electrophotographic copier, laser printer, electrophotographic printer (as laser printer and LED printer etc.), facsimile recorder and word processor etc.Imaging device generally includes Delevoping cartridge and drum box, Delevoping cartridge provides developer on the bulging box forming electrostatic latent image, the photosensitive drums of drum box forms corresponding visual developer image corresponding to electrostatic latent image, then by transfer printing by developer image on recording medium, eventually pass and fixing developer image is fixed on recording medium, last recording medium is discharged from image processing system, completes printing.
As shown in Figure 1 and Figure 2, a kind of Delevoping cartridge is disclosed in prior art, comprise: interior reservoir has the housing 10 of developer, be supported in the developer roll 30 at housing 10 two ends, the powder feeding roller 40 of developer is carried to developer roll 30, control the powder outlet cutter 20 of developer thickness on developer roll 30, powder outlet cutter 20 comprises a doctor blade 202.Developer is supplied on developer roll 30 under the rotation of powder feeding roller 40, developer forms a specific thicknesses on developer roll 30 surface under the control of powder outlet cutter 20, remaining developer and be not developed roller 30 adsorb developer be deposited in by housing 10, powder outlet cutter 20, in the cavity that developer roll 30 forms, when developer overheap, developer extruding powder outlet cutter 20, the extruding of the power F that the blade 202 of powder outlet cutter 20 produces by developer is easily out of shape makes the gap between powder outlet cutter 20 and developer roll 30 become large, thus the developer thickness on developer roll 30 is increased, even there is the situation that developer leaks, affect print quality.Therefore preventing developer from leaking becomes the current problem needing to solve.
Utility model content
In order to solve produced problem in above-mentioned prior art, the utility model handle box by the following technical solutions.
A kind of Delevoping cartridge, comprising:
The housing of storage of developer;
Be supported in the developer roll at described housing two ends;
Be installed on the powder outlet cutter of described surface of shell, described powder outlet cutter comprises: be installed on the knife rest on described surface of shell and be fixed on the blade described knife rest with certain elastic deformation amount,
Described blade comprises: the contact site contacted with described developer roll, the coupling part be coupled with described knife rest, the bend being connected described contact site and coupling part, described contact site by the effect of described developer roll to the side elastic deformation of storage of developer in described housing.
Described contact site extends from described bend to enclosure interior.
The scope stretching into the height h of the end of enclosure interior from the summit of described bend to contact site is 2mm ~ 6mm.
The scope of the angle [alpha] of the bend of described blade is 30 ° ~ 120 °.
Accompanying drawing explanation
Fig. 1 is the cut-open view of Delevoping cartridge in prior art;
Fig. 2 is the schematic diagram that prior art powder outlet cutter contacts with developer roll;
Fig. 3 is the cut-open view of the utility model embodiment Delevoping cartridge;
Fig. 4 is the structural representation of the utility model embodiment powder outlet cutter;
Fig. 5 is the schematic diagram that the utility model embodiment powder outlet cutter contacts with developer roll;
Fig. 6 is the cut-open view of the utility model embodiment powder outlet cutter.
Embodiment
Be the cut-open view of the utility model embodiment Delevoping cartridge as shown in Figure 3, comprise: housing 1, storage inside has developer; Developer roll 3, is supported in housing 1 two ends; Powder feeding roller 4, provides developer on developer roll 3; Powder outlet cutter 2, is arranged on housing 1 and the developer controlled on developer roll 3 keeps specific thicknesses.
Be the structural representation of the utility model embodiment powder outlet cutter 2 as shown in Figure 4, be the schematic diagram that the utility model embodiment powder outlet cutter 2 contacts with developer roll 3 as shown in Figure 5, Fig. 6 is the cut-open view of the utility model embodiment powder outlet cutter.Described powder outlet cutter 2 comprises: knife rest 21, is installed on the surface of housing 1; Blade 22, to be fixed on knife rest 21 and to have certain elastic deformation amount.Blade 22 comprises: the contact site 22a contacted with developer roll 3, the coupling part 22b be coupled with knife rest 21, connects the bend 22c of contact site 22a and coupling part 22b.Coupling part 22a is fixed to knife rest 21 surface, contact site 22a is inner from bend 22c to housing 1 to be extended, the height stretching into the end of housing 1 inside from bend 22c summit to contact site 22a is h, the scope of h is 2mm ~ 6mm, if h is too small, partial distance housing 1 surface that contact site 22a contacts with developer roll 3 is excessively near, and the moment of torsion of developer roll 3 is excessive thus affect the rotation of developer roll 3, if h is excessive easily and powder feeding roller 4 interferes and the moment of torsion of developer roll 3 is too small, be unfavorable for the conveying of developer.Contact site 22a in housing 1 storage of developer side and be developed agent extruding face be stress surface 22a1, contact site 22a and developer roll 3 are Interference contact, the squeezing action by developer roll 3 store in housing 1 developer side generation elastic deformation.In order to keep the stable touch controls developer thickness of developer roll 3 and contact site 22a, the scope of the angle α of bend 22c is 30 ° ~ 120 °.
The situation that the utility model embodiment powder outlet cutter 2 controls developer is elaborated below according to Fig. 3 to Fig. 6.
As shown in Fig. 3 to Fig. 6, contact site 22a contacts along bend 22c to the extension of the inside of housing 1 with developer roll 3.When imaging device is started working, powder feeding roller 4 by developer feeding on developer roll 3, be adsorbed onto developer on developer roll 3 rotate at developer roll 3 drive under through blade 22 time, the control by blade 22 keeps certain thickness.
When imaging device work a period of time, powder feeding roller 4 continues to carry developer to developer roll 3, the developer that control by blade 22 is not adsorbed onto on developer roll 3 is constantly piled up in the cavity be made up of housing 1, powder outlet cutter 2, developer roll 3, the developer extruding powder outlet cutter 2 when developer overheap.The contact portion of developer extruding contact site 22a and developer roll 3 produces power F1, when developer accumulation increases, F1 increases the curving distortion increase making contact site 22a to housing 1 storage of developer, because contact site 22a extends to housing 1 inside, the stress surface 22a1 of the contact site of developer extruding simultaneously 22a produces power F2, the stress surface 22a1 that F2 acts on contact site stops contact site 22a to be out of shape to the curving of housing 1 storage of developer, interaction due to F1 with F2 makes the contact site 22a of blade 22 contact with developer roll 3 is stable, thus prevents the leakage of developer.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (4)
1. a Delevoping cartridge, comprising:
The housing (1) of storage of developer;
Be supported in the developer roll (3) at described housing (1) two ends;
Be installed on the powder outlet cutter (2) on described housing (1) surface, described powder outlet cutter (2) comprising: be installed on the knife rest (21) on described housing (1) surface and be fixed on the blade (22) described knife rest (21) with certain elastic deformation amount,
It is characterized in that, described blade (22) comprising: the contact site (22a) contacted with described developer roll (3), the coupling part (22b) be coupled with described knife rest (21), the bend (22c) being connected described contact site (22a) and described coupling part (22b), described contact site (22a) by the effect of described developer roll (3) to the side elastic deformation of described housing (1) interior storage of developer.
2. Delevoping cartridge as claimed in claim 1, is characterized in that, described contact site (22a) is inner from described bend (22c) to described housing (1) to be extended.
3. Delevoping cartridge as claimed in claim 2, is characterized in that, the scope stretching into the height h of the inner end of described housing (1) from the summit of described bend (22c) to described contact site (22a) is 2mm ~ 6mm.
4. Delevoping cartridge as claimed in claim 1, it is characterized in that, the scope of the angle [alpha] of the described bend (22c) of described blade (22) is 30 ° ~ 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731395.2U CN205028028U (en) | 2015-09-21 | 2015-09-21 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731395.2U CN205028028U (en) | 2015-09-21 | 2015-09-21 | Developing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205028028U true CN205028028U (en) | 2016-02-10 |
Family
ID=55260549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520731395.2U Active CN205028028U (en) | 2015-09-21 | 2015-09-21 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205028028U (en) |
-
2015
- 2015-09-21 CN CN201520731395.2U patent/CN205028028U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |