CN212364797U - New structure for eliminating smear of selenium drum - Google Patents
New structure for eliminating smear of selenium drum Download PDFInfo
- Publication number
- CN212364797U CN212364797U CN202021412951.7U CN202021412951U CN212364797U CN 212364797 U CN212364797 U CN 212364797U CN 202021412951 U CN202021412951 U CN 202021412951U CN 212364797 U CN212364797 U CN 212364797U
- Authority
- CN
- China
- Prior art keywords
- powder
- selenium drum
- sealing
- developing
- sponge
- 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
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052711 selenium Inorganic materials 0.000 title claims abstract description 19
- 239000011669 selenium Substances 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 9
- 239000000806 elastomer Substances 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000007790 scraping Methods 0.000 description 11
- 230000018109 developmental process Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 206010070834 Sensitisation Diseases 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
The utility model discloses a selenium drum eliminates smear new construction, including setting up powder storehouse, developer roll and sealing the powder doctor-bar in the selenium drum casing, its characterized in that: and in each developing period, the rest magnetic carbon powder adsorbed on the surface of the developing roller after the developing of the developing roller is finished is extruded and scraped by the elastomer and then transferred into the powder bin. The powder sealing scraper of the structure is made of plastic, the elastic body is installed on the powder sealing scraper, the powder sealing scraper not only plays a supporting role, but also has certain elasticity, and the sponge becomes hard gradually and can be supported in an auxiliary mode and provide certain elasticity when losing elasticity, so that the service life of the sponge is prolonged.
Description
Technical Field
The utility model relates to a selenium drum, especially a new structure of smear is eliminated to selenium drum.
Background
This device is the contact development, and this developer roll structure includes aluminum pipe and middle magnetic core and outer rubber, and developer roll and sensitization drum contact and be greater than magnetic field force through electric field force and make the carbon dust adsorbed in electrostatic latent image district, and the carbon dust is magnetic carbon dust, and takes charge through sealing the powder doctor-bar before the formation of image, because when starting, the developer roll can adsorb the carbon dust and idle running, can be sealed the powder doctor-bar at this in-process and rub many times, therefore the electrified gauge height of carbon dust. However, in the process of participating in development, not all the toner on the developing roller is adsorbed to participate in development, only the toner in the region corresponding to the electrostatic latent image region (region a for short) is adsorbed to the photosensitive drum to participate in development, and after the development is completed, the developing roller rotates to the toner hopper to supplement the toner, because only the toner in the region a is reduced, the region a can be supplemented with new toner, and the toner is charged by the toner sealing blade, but the electric quantity of the newly supplemented toner is lower than that of the residual toner. Then if the corresponding area of the next developed electrostatic latent image area on the developing roller is the area C, and the area C is composed of the area A and the area B (and the voltage added to the electrostatic latent image area is the same), but the density of the carbon powder absorbed to the area A of the electrostatic latent image area is different from the density of the carbon powder absorbed to the area B of the electrostatic latent image area, so that two patterns with different colors can be formed on the printing paper in the area A and the area B, and the pattern of the area A is concealed and reappeared in the expected pattern of the area C, (if normal, the density of the carbon powder absorbed to the area A of the electrostatic latent image area is the same as the density of the carbon powder absorbed to the area B of the electrostatic latent image area, so that the colors of the patterns formed by the area A and the area B are the same, and the pattern formed by the area A and the area B is an integral pattern of the area C), the color shade is different, so that the image developed last time is displayed in a hidden manner (namely, smear) on the image developed this time, and the printing effect is poor.
Of course, the above-mentioned situation does not only occur at the time of starting up, but also sometimes occurs in the subsequent printing process, so that a new structure needs to be designed to eliminate the above-mentioned problem, thereby ensuring the printing quality.
Therefore, the applicant has designed a toner cartridge smear removing structure (patent No. 2019205675497) to solve the above problems, but the above structure has the defect that the porous elastomer is made of sponge, and the sponge is easy to age, harden and lose elasticity, so that the aging cannot achieve the expected smear removing effect, and the service life is short.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a new structure for eliminating the smear of a selenium drum.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a selenium drum eliminates smear new construction, is including setting up powder storehouse, developer roll and sealing the powder doctor-bar in selenium drum casing, its characterized in that: and in each developing period, the rest magnetic carbon powder adsorbed on the surface of the developing roller after the developing of the developing roller is finished is extruded and scraped by the elastomer and then transferred into the powder bin.
The porous elastomer is in the shape of a square strip.
The porous elastic body is a sponge strip made of sponge.
The utility model has the advantages that: the powder sealing scraper of the structure is made of plastic, the elastic body is installed on the powder sealing scraper, the powder sealing scraper not only plays a supporting role, but also has certain elasticity, and the sponge becomes hard gradually and can be supported in an auxiliary mode and provide certain elasticity when losing elasticity, so that the service life of the sponge is prolonged.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1, the utility model discloses a selenium drum eliminates new construction of smear, including setting up powder storehouse 1, developer roll 2, sensitization drum 3 in the selenium drum casing and sealing powder doctor-bar 4, above-mentioned principle and structure all are prior art, therefore do not detail, seal and be equipped with on the powder doctor-bar 4 can with the porous elastomer 5 of the magnetic carbon powder contact of developer roll 2 surface adsorption, and in each development cycle, the developer roll 2 develops and accomplishes the remaining magnetic carbon powder of 2 surface adsorption of back developer roll and scrape through elastomer 5 extrusion and sweep back and change over to powder storehouse 1 again. The elastic body 5 is preferably sponge, is preferably a rectangular square sheet in shape, is convenient for cutting and bonding, is fixed on the bottom surface of the powder sealing scraping blade 4 in a bonding mode, the powder sealing scraping blade 4 is used for sealing powder, so the edge of the bottom surface of the previous powder sealing scraping blade 4 is in contact with the developing roller 2, and is convenient for sealing powder, but because the previous powder sealing scraping blade 4 is relatively long and one side of the previous powder sealing scraping blade is stuck on the selenium drum shell, and the edge of the other side of the previous powder sealing scraping blade is in contact with the developing roller 2, certain pressure is generated when the installation, support and contact are convenient, the powder sealing scraping blade 4 needs certain hardness, but the edge of the bottom surface of the powder sealing scraping blade 4 is not in contact with the developing roller 2, so the powder sealing effect is also a bit defect, the elastic body 5 is arranged on the bottom surface of the current powder sealing scraping blade 4, and the elastic body 5 is very soft, so the elastic body 5 can, therefore, the effect of sealing the powder is also improved, and compared with the situation that the sponge is directly adhered to the selenium drum shell, the installation is more convenient, because the selenium drum shell is large and irregular, the operation space is small, the sponge can be firstly adhered to the powder sealing scraping blade 4 directly, and then the powder sealing scraping blade 4 is adhered to the selenium drum shell, so that the operation is more convenient. Of course, the material and shape of the elastic body 5 may be other, and the above description is only applied to the description of the present example.
The above detailed description is made on the new structure for eliminating the smear of the toner cartridge provided by the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (3)
1. The utility model provides a selenium drum eliminates smear new construction, is including setting up powder storehouse, developer roll and sealing the powder doctor-bar in selenium drum casing, its characterized in that: and in each developing period, the rest magnetic carbon powder adsorbed on the surface of the developing roller after the developing of the developing roller is finished is extruded and scraped by the elastomer and then transferred into the powder bin.
2. The new structure for eliminating smear of selenium drum according to claim 1, wherein: the porous elastomer is in the shape of a square strip.
3. The new structure for eliminating smear of selenium drum according to claim 1, wherein: the porous elastic body is a sponge strip made of sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412951.7U CN212364797U (en) | 2020-07-17 | 2020-07-17 | New structure for eliminating smear of selenium drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021412951.7U CN212364797U (en) | 2020-07-17 | 2020-07-17 | New structure for eliminating smear of selenium drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212364797U true CN212364797U (en) | 2021-01-15 |
Family
ID=74131061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021412951.7U Active CN212364797U (en) | 2020-07-17 | 2020-07-17 | New structure for eliminating smear of selenium drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212364797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113031416A (en) * | 2021-04-23 | 2021-06-25 | 中山市奔码打印耗材有限公司 | Powder control structure of laser printer processing box |
-
2020
- 2020-07-17 CN CN202021412951.7U patent/CN212364797U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113031416A (en) * | 2021-04-23 | 2021-06-25 | 中山市奔码打印耗材有限公司 | Powder control structure of laser printer processing box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1205126A (en) | Device and method for stripping developer liquid from a photoconductive surface | |
| CN212364797U (en) | New structure for eliminating smear of selenium drum | |
| JP3816579B2 (en) | Foam roller cleaning system for liquid electrophotographic printers | |
| CN105182711A (en) | Image Forming Apparatus | |
| CN200972573Y (en) | Developing box for laser printer | |
| CN217879991U (en) | Laser printer handles box and removes smear structure | |
| JP2003021965A (en) | Developing device, and process cartridge and image forming apparatus equipped with developing device | |
| WO2022262306A1 (en) | Residual toner-free type elastic toner control structure for laser printer process cartridge | |
| CN209657087U (en) | A kind of toner cartridge elimination smear structure | |
| CN214795572U (en) | Selenium drum sealing structure of laser printer | |
| JP2007086552A (en) | Electrophotographic image forming apparatus | |
| CN201993583U (en) | Developing unit with magnetic rubber roller | |
| CN201945808U (en) | New developing unit of contact type developing toner cartridge | |
| US2847305A (en) | Xerographic transfer process | |
| CN100511013C (en) | Image forming apparatus | |
| CN201373981Y (en) | Developing box | |
| CN210270524U (en) | Be used for clean structure of selenium drum waste powder | |
| JP3044104B2 (en) | Developer supply peeling member, developing device having this member, and image forming apparatus | |
| JPS58137870A (en) | Roll cleaning device | |
| CN219831640U (en) | Non-contact type scraping blade structure | |
| CN2718628Y (en) | Cleaning device for charging roll | |
| CN202362589U (en) | Novel toner control structure of printer | |
| JP2010079010A (en) | Developing device | |
| JP5634450B2 (en) | Image forming apparatus | |
| JPH0437778A (en) | One component system developing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new structure for eliminating smear of selenium drum Effective date of registration: 20211210 Granted publication date: 20210115 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN CHONGTIAN HARDWARE PRODUCTS CO.,LTD. Registration number: Y2021980014722 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210115 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN CHONGTIAN HARDWARE PRODUCTS CO.,LTD. Registration number: Y2021980014722 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |