WO2011076060A1 - 充电装置及感光鼓组件 - Google Patents

充电装置及感光鼓组件 Download PDF

Info

Publication number
WO2011076060A1
WO2011076060A1 PCT/CN2010/079487 CN2010079487W WO2011076060A1 WO 2011076060 A1 WO2011076060 A1 WO 2011076060A1 CN 2010079487 W CN2010079487 W CN 2010079487W WO 2011076060 A1 WO2011076060 A1 WO 2011076060A1
Authority
WO
WIPO (PCT)
Prior art keywords
corona
brush
side wall
grid
photosensitive drum
Prior art date
Application number
PCT/CN2010/079487
Other languages
English (en)
French (fr)
Inventor
秦华金
周宏辉
Original Assignee
珠海天威飞马打印耗材有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 珠海天威飞马打印耗材有限公司 filed Critical 珠海天威飞马打印耗材有限公司
Priority to US13/517,466 priority Critical patent/US20120269550A1/en
Publication of WO2011076060A1 publication Critical patent/WO2011076060A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/02—Arrangements for laying down a uniform charge
    • G03G2215/026—Arrangements for laying down a uniform charge by coronas

Definitions

  • the present invention relates to a charging device for charging a photosensitive drum of a photosensitive drum assembly and a photosensitive drum assembly to which the charging device is applied.
  • the present invention is based on a Chinese utility model patent application filed on Dec. 24, 2009, with the application number of 2009. 20 957 9.7, the content of which is incorporated herein by reference.
  • Laser printers are common printing devices that provide great convenience for modern office use. Most of the existing laser printers use a process cartridge that is detachably mounted in a laser printer to provide toner for printing. During the printing process, the toner loaded in the process cartridge is transferred onto the paper as a printing medium to form a desired paper. Patterns and text.
  • a conventional type of process cartridge is composed of a toner cartridge and a photosensitive drum assembly, and the toner cartridge has a cavity for containing toner and is provided with a developing roller or the like.
  • the toner cartridge is detachably mounted in the photoconductor kit and forms a process cartridge together with the photoconductor kit.
  • a conventional photosensitive drum unit has a lower frame 2 to which an upper frame 1 is mounted, and an upper portion of the lower frame 2 is used for detachably mounting and detaching a toner cartridge.
  • a photosensitive drum 4 and a transfer roller 3 are also mounted in the lower frame 2, and the photosensitive drum 4 can receive the toner sent from the toner cartridge and transfer the toner onto the paper.
  • the charging device is installed in the upper frame 1, and one end of the upper frame 1 is provided with an end cover 12, that is, a charging device including a corona wire 13, a corona wire 14 and a brush 20 mounted in the upper frame 1. .
  • the corona grid 14 is disposed opposite the surface of the photosensitive drum 4, and has a first side wall 15 and a second side wall 16 opposite to the first side wall, and is disposed between the first side wall 15 and the second side wall 16.
  • the lower wall 17, the lower wall 17 is adjacent to the first side wall 15 and the second side wall 16, and the lower wall 17 is provided with a plurality of elongated grids (not visible in Fig. 2).
  • the corona wire 13 is mounted above the lower wall 17 of the corona grid 14, i.e., the corona wire 13 is surrounded by the lower wall 17, the first side wall 15, and the second side wall 16 of the corona grid 14.
  • the corona wire 13 is loaded with high voltage electricity, generally 3000 volts DC, and forms a high voltage corona, and the high voltage electricity is uniformly loaded on the photosensitive drum 4 through the grid 18 of the corona grid 14.
  • the surface of the photosensitive drum 4 is uniformly charged to facilitate exposure of the photosensitive drum 4.
  • the brush 20 has a brush holder 21 and bristles 22 fixed to the brush holder 21, and the bristles 22 are in contact with the surface of the photosensitive drum 4 for removing the toner remaining on the surface of the photosensitive drum 4 after the photosensitive drum 4 is exposed and transferred.
  • An electrical contact 23 is provided at one end of the brush holder 21 for connection with a laser printer to obtain a DC power source, and the voltage of the DC power source is much lower than the voltage of the corona wire 13 and the corona grid 14, generally 450 volts. Direct current to energize the bristles 22. When the toner is removed, the charged bristles 22 adsorb the carbon powder having the opposite polarity to better remove the toner from the surface of the photosensitive drum 4.
  • the adsorption capacity of the brush 20 loaded with the same voltage to different charged toners is also different.
  • the brush 20 loaded with 450 VDC can better adsorb the toner, but other types of toner are not easily absorbed by the brush 20 loaded with 450 VDC, as the printing operation proceeds, More toner is deposited on the bristles 22, and the residual toner easily falls off the bristles 22, contaminating the printed paper and reducing the print quality.
  • the main object of the present invention is to provide a charging device with adjustable voltage on a brush
  • Another object of the present invention is to provide a photosensitive drum module which can prevent toner from falling off the brush.
  • the charging device comprises a corona grid and a brush
  • the corona grid has a side wall and a lower wall adjacent to the side wall, and the lower wall is provided with a plurality of grids
  • a corona grid A corona wire is disposed above the lower wall, wherein a buck module is disposed between the corona grating and the brush, and one end of the buck module is connected to the corona grid, and the other end is connected to the brush.
  • the brush is electrically connected to the corona grid through the step-down module, that is, the brush obtains the DC power from the corona grid, and does not directly obtain the power from the laser printer, so that the processing box manufacturer can according to the processing box
  • the charged amount of the device toner is calculated by loading the appropriate voltage on the brush, and the voltage applied to the brush is achieved by the step-down of the buck module.
  • the voltage applied to the brush is not a fixed voltage provided by the laser printer, but is adjusted according to the type of toner to enhance the adsorption capacity of the bristles to the toner.
  • the step-down module has a conductive sheet and a step-down device connected in series with the conductive sheet, the conductive sheet is connected to the corona grid, and the step-down device is connected to the brush.
  • the buck module is firmly connected to the corona grid, so that a stable DC power source is obtained on the brush.
  • the first sidewall of the conductive sheet is provided with an outwardly convex bump
  • the sidewall of the corona gate is provided with a through hole that cooperates with the bump. It can be seen that the bump of the conductive sheet cooperates with the through hole of the corona grid, and the conductive sheet can be well connected with the corona grid to avoid relative sliding between the conductive sheet and the corona grid, thereby causing poor contact and affecting corona.
  • the grid supplies power to the brush.
  • the photoreceptor drum assembly has a lower frame in which a photosensitive drum, an upper frame mounted on the lower frame, and a charging device mounted in the upper frame, and a charging device including a corona grid And a brush
  • the corona grid has a side wall and a lower wall adjacent to the side wall
  • the lower wall is provided with a plurality of grids
  • a corona wire is arranged above the lower wall of the corona grid, wherein the corona grid and the brush
  • the voltage drop of the buck module disposed between the corona grating and the brush can form a suitable DC voltage on the brush, which can be based on different toners.
  • Adsorption characteristics Calculate the appropriate depressurization value of the buck module, so that the adsorption capacity of the brush is optimal, and the residual toner is prevented from falling off the bristles, which affects the print quality.
  • FIG. 1 is a structural exploded view of a conventional photosensitive drum assembly
  • FIG. 2 is an exploded, isometric view showing the structure of a conventional charging device installed in an upper frame
  • Figure 3 is an exploded view showing the structure of the charging device of the present invention installed in the upper frame;
  • FIG. 4 is a partial enlarged view of a corona grating, a brush, and a step-down module in the embodiment of the charging device of the present invention
  • Fig. 5 is a partially enlarged view showing another perspective of the corona grid and the conductive sheet in the embodiment of the charging device of the present invention.
  • a photosensitive drum module has a lower frame on which a photosensitive drum, a transfer roller, and the like are mounted, an upper frame mounted on the lower frame, and a charging device provided in accordance with the following embodiment of the present invention, the upper portion of the lower frame is mounted in the upper frame There is an opening for detachably mounting the toner cartridge, and the photosensitive drum assembly can be combined with the toner cartridge to form a process cartridge.
  • FIG. 3 An embodiment of the charging device of the present invention is shown in FIG. 3.
  • a charging device is mounted in the upper frame 31 of the photosensitive drum assembly and the end cover 32 at one end of the upper frame 31.
  • the charging device includes a corona grid 34 and a corona wire 33.
  • the halo 34 has a first side wall 35 and a second side wall 36 opposite to the first side wall 35.
  • the first side wall 35 and the second side wall 36 are provided with a lower wall 37 connecting the two side walls, corona
  • the wire 33 is located above the lower wall 37.
  • a brush 52 is disposed under the corona grid 34.
  • the brush 52 has a brush holder 53 and bristles 54.
  • a step-down module is disposed between the corona grid 34 and the brush holder 53.
  • the step-down module is composed of a conductive sheet 40 and a resistor 51 as a step-down device of the present embodiment, wherein the conductive sheet 40 is connected in series with the resistor 51.
  • the conductive sheet 40 has a first sidewall 41 and a second sidewall 42 opposite to the first sidewall 41 .
  • a connecting wall 43 is disposed between the first sidewall 41 and the second sidewall 42 .
  • the first side wall 41 of the conductive sheet 40 interfaces with the first side wall 35 of the corona grid 34.
  • a through hole 39 is defined in the first side wall 35 of the corona grid 34.
  • the first side wall 41 of the conductive sheet 40 is provided with a bump 45. The bump 45 can be placed in the through hole 39 to realize the conductive sheet 40 and the corona. Electrical connection between the gates 34.
  • a plurality of strips 38 are formed on the lower wall 37 of the corona grid 34.
  • the bump 45 has a spherical crown shape, and the diameter of the bottom surface of the bump 45 is equal to the diameter of the through hole 39, that is, the cross section of the bump 45 is the same as the shape of the through hole 39, thereby preventing the first side wall 41 from being opposite. Sliding between a side wall 35.
  • the outwardly protruding protrusions may be disposed on the first sidewall 35 of the corona grid 34, and the through holes corresponding to the bumps may be formed on the first sidewall 41 of the conductive sheet 40. Get the same effect.
  • One end of the resistor 51 is connected to the second side wall 42 of the conductive sheet 40, and the other end is connected to the brush holder 53 of the brush 52.
  • the laser printer supplies high voltage direct current to the corona grid 34, and the direct current flowing through the first side wall 35 of the corona grating 34 is conducted to the brush holder 53 of the brush 52 through the conductive sheet 40 and the resistor 51. Thereby, the brush holder 53 is charged. Since the voltage applied to the corona grid 34 is much higher than the voltage required by the brush holder 53, it is necessary to calculate and select a resistor 51 having a suitable resistance for step-down, so that the voltage on the brush holder 53 is appropriate.
  • the voltage applied to the brush holder 53 is obtained by step-down of the corona grid 34. Therefore, the resistor 51 having a suitable resistance can be used to adjust the voltage applied to the brush holder 53, thereby adjusting the voltage of the bristles 54.
  • the voltage applied to the brush holder 53 is calculated based on the characteristics of the toner of the process cartridge device, and the resistance of the resistor 51 is calculated based on the applied voltage.
  • the voltage applied to the brush 52 can be different to adapt to the carbon powder of different characteristics, so that the brush 52 can effectively adsorb the toner remaining on the photosensitive drum to avoid residual. Toner contaminated paper to ensure print quality.
  • a dedicated step-down circuit can be used instead of the resistor as a step-down device.
  • a step-down circuit with adjustable resistance is used, which is more convenient for the production of the process cartridge.
  • the brush is electrically connected to the corona grid through the step-down module, that is, the brush obtains the DC power from the corona grid, and does not directly obtain the power from the laser printer, so that the processing box manufacturer can according to the processing box
  • the charged amount of the device toner is calculated by loading the appropriate voltage on the brush, and the voltage applied to the brush is achieved by the step-down of the buck module. Since the voltage of the corona grid is much higher than the voltage of the brush, the voltage drop of the buck module disposed between the corona grating and the brush can form a suitable DC voltage on the brush, and can be based on different toners.
  • the adsorption characteristics calculate the appropriate depressurization value of the buck module, so that the adsorption capacity of the brush is optimized, and the residual toner is prevented from falling off the bristles, which affects the print quality.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Description

充电装置及感光鼓组件 技术领域
本发明涉及一种用于对感光鼓组件的感光鼓进行充电的充电装置以及应用该充电装置的感光鼓组件。本发明基于申请日为2009年12月24日、申请号为200920295719.7的中国实用新型专利申请，该申请的内容作为与本发明密切相关的参考文献引入本文。
 背景技术
激光打印机是常见的打印设备，为现代化办公提供极大的方便。现有的激光打印机大多使用可拆卸地安装到激光打印机内的处理盒提供打印使用的碳粉，在打印过程中，处理盒装载的碳粉转印在作为打印介质的纸张上，形成所需的图案和文字。
现有的一类处理盒由碳粉盒与感光鼓组件构成，碳粉盒具有容纳碳粉的腔体，并设有显影辊等部件。碳粉盒可拆卸地安装到感光鼓组件内，并与感光鼓组件一起组成一个处理盒。
参见图1，现有的一种感光鼓组件具有一个下框架2，下框架2上安装有上框架1，下框架2上部的敞口用于可拆安装卸地安装碳粉盒。在下框架2中还安装有感光鼓4以及转印辊3，感光鼓4可接收碳粉盒送出的碳粉，并将碳粉转印至纸张上。如图2所示,充电装置安装在上框架1内，上框架1的一端设有端盖12，即上框架1内安装有电晕丝13、电晕栅14以及毛刷20构成的充电装置。电晕栅14正对感光鼓4的表面设置，其具有第一侧壁15以及与第一侧壁相对的第二侧壁16，在第一侧壁15与第二侧壁16之间设有下壁17，下壁17与第一侧壁15及第二侧壁16邻接，且下壁17上开设有多个呈长条状的栅格（图2中不可见）。
电晕丝13安装在电晕栅14下壁17的上方，即电晕丝13被电晕栅14的下壁17、第一侧壁15以及第二侧壁16包围。处理盒工作时，电晕丝13上加载有高压电，一般为3000伏的直流电，并形成高压电晕，高压电穿过电晕栅14的栅格18均匀地加载在感光鼓4上，使感光鼓4表面均匀带电，便于感光鼓4曝光。
毛刷20具有毛刷架21以及固定在毛刷架21上的刷毛22，刷毛22与感光鼓4表面接触，用于清除感光鼓4曝光转印后残留在感光鼓4表面的碳粉。在毛刷架21的一端设有电触点23，用于与激光打印机连接以获得直流电源，并且直流电源的电压远低于电晕丝13及电晕栅14的电压，一般为450伏的直流电，使刷毛22带电。清除碳粉时，带电的刷毛22吸附带有极性相反电荷的碳粉，从而更好地将碳粉从感光鼓4表面上清除。
 技术问题
但是，由于不同碳粉、感光鼓4以及转印辊等的转印效率不同，尤其是不同碳粉的带电电量不同，加载有相同电压的毛刷20对不同带电量碳粉的吸附能力也就不同。对于某些类型的碳粉，加载450伏直流电的毛刷20能较好地吸附碳粉，但其他类型的碳粉则不易被加载450伏直流电的毛刷20吸附，随着打印操作的进行，刷毛22上堆积较多的碳粉，残留的碳粉容易从刷毛22上掉下，污染打印纸张从而降低打印质量。
技术解决方案
本发明的主要目的是提供一种加载在毛刷上电压可调的充电装置；
本发明的另一目的是提供一种能避免碳粉从毛刷上掉下的感光鼓组件。
为实现上述的主要目的，本发明提供的充电装置包括电晕栅及毛刷，电晕栅具有一个侧壁以及与侧壁邻接的下壁，下壁上设有多个栅格，电晕栅下壁上方设置有电晕丝，其中，电晕栅与所述毛刷之间设有降压模块，降压模块的一端与电晕栅连接，另一端与毛刷连接。
由上述方案可见，毛刷通过降压模块与电晕栅电连接，即毛刷从电晕栅上获得直流电源，而并非直接从激光打印机上获得电源，这样，处理盒生产厂家可根据处理盒装置碳粉的带电电量计算加载在毛刷上合适的电压，并通过降压模块的降压实现加载在毛刷上的电压。
可见，加载在毛刷上的电压并非激光打印机提供的固定电压，而是根据碳粉类型调整，增强刷毛对碳粉的吸附能力。
一个优选的方案是，降压模块具有导电片以及与导电片串联连接的降压器件，导电片与电晕栅连接，降压器件与毛刷连接。这样，通过与降压器件串联的导电片与电晕栅连接，有利于降压模块牢固地与电晕栅电连接，使毛刷上获得稳定的直流电源。
进一步的方案是，导电片的第一侧壁设有向外凸起的凸块，电晕栅侧壁设有与凸块配合的通孔。可见，通过，导电片的凸块与电晕栅的通孔配合，导电片能较好地与电晕栅连接，避免导电片与电晕栅之间发生相对滑动而造成接触不良，影响电晕栅向毛刷供电。
为实现上述的另一目的，本发明提供的感光鼓组件具有下框架，下框架内安装有感光鼓，安装在下框架上的上框架以及安装在上框架内的充电装置，充电装包括电晕栅及毛刷，电晕栅具有一个侧壁以及与侧壁邻接的下壁，下壁上设有多个栅格，电晕栅下壁上方设置有电晕丝，其中，电晕栅与毛刷之间设有降压模块，降压模块的一端与电晕栅连接，另一端与所述毛刷连接。
由于电晕栅的电压远高于毛刷的电压，通过设置在电晕栅与毛刷之间的降压模块降压，能使毛刷上形成电压合适的直流电压，可根据不同碳粉的吸附特性计算降压模块合适的降压值，从而使毛刷的吸附能力最优，避免残留的碳粉从刷毛上掉下，影响打印质量。
 附图说明
图1是现有一种感光鼓组件的结构分解图；
图2是现有充电装置安装在上框架内的结构分解放大图；
图3是本发明充电装置实施例安装在上框架内的结构分解图；
图4是本发明充电装置实施例中电晕栅、毛刷及降压模块的局部放大图；
图5是本发明充电装置实施例中电晕栅及导电片另一视角的局部放大图。
以下结合附图及实施例对本发明作进一步说明。
 本发明的实施方式
根据本发明的感光鼓组件具有一个安装有感光鼓、转印辊等的下框架，一个安装在下框架上的上框架，上框架内安装有根据本发明以下实施例提供的充电装置，下框架上部有一用于可拆卸地安装碳粉盒的敞口，该感光鼓组件可与碳粉盒一同组成一个处理盒。
本发明充电装置的实施例如图3所示，在感光鼓组件的上框架31以及位于上框架31一端的端盖32内安装有充电装置，充电装置包括电晕栅34以及电晕丝33，电晕栅34具有第一侧壁35以及与第一侧壁35相对的第二侧壁36，第一侧壁35与第二侧壁36之间设有连接两侧壁的下壁37，电晕丝33位于下壁37的上方。
电晕栅34下方设有毛刷52，毛刷52具有毛刷架53以及刷毛54，电晕栅34与毛刷架53之间设有降压模块。本实施例中，降压模块由导电片40与作为本实施例降压器件的电阻51组成，其中导电片40与电阻51串联连接。
参见图4与图5，导电片40具有第一侧壁41以及与第一侧壁41相对的第二侧壁42，第一侧壁41与第二侧壁42之间设有连接壁43，导电片40的第一侧壁41与电晕栅34的第一侧壁35对接。电晕栅34第一侧壁35上开设有通孔39，导电片40的第一侧壁41上设有凸块45，凸块45可套装在通孔39内，实现导电片40与电晕栅34之间的电连接。电晕栅34的下壁37上开设有多个呈条状的栅格38。
本实施例中，凸块45为球冠状，且凸块45的底面直径与通孔39的直径相等，即凸块45的截面与通孔39的形状相同，从而防止第一侧壁41相对第一侧壁35之间的滑动。
当然，实际应用时，可以在电晕栅34的第一侧壁35上设置向外突出的凸块，在导电片40的第一侧壁41上开设与凸块相配合的通孔，这可获得相同的效果。
电阻51的一端连接在导电片40的第二侧壁42上，另一端连接到毛刷52的毛刷架53上。感光鼓组件工作时，激光打印机向电晕栅34提供高压直流电，流经电晕栅34第一侧壁35上的直流电流通过导电片40以及电阻51传导至毛刷52的毛刷架53上，从而使毛刷架53带电。由于加载在电晕栅34上的电压远高于毛刷架53所需要的电压，因此需要计算并选用阻值合适的电阻51进行降压，使毛刷架53上电压合适。
由此可见，加载在毛刷架53上的电压由电晕栅34降压获得，因此可选用阻值合适的电阻51调节加载在毛刷架53上的电压，从而调节刷毛54的电压。这样，根据处理盒装置碳粉的特性计算加载在毛刷架53上的电压，并根据加载的电压计算电阻51的阻值。
通过选用阻值不同阻值的电阻51可使加载在毛刷52上的电压不同，从而适应不同特性的碳粉，使毛刷52能有效地吸附残留在感光鼓上的碳粉，避免残留的碳粉污染纸张，保证打印质量。
当然，实际应用时，可以使用专用的降压电路替代电阻作为降压器件，优选地，选用阻值可调的降压电路，更能方便处理盒的生产。
最后需要强调的是，本发明不限于上述实施方式，如凸块与通孔形状的改变、凸块与通孔设置位置的改变等微小的变化也应该包括在本发明权利要求的保护范围内。
 工业实用性
在本发明中，毛刷通过降压模块与电晕栅电连接，即毛刷从电晕栅上获得直流电源，而并非直接从激光打印机上获得电源，这样，处理盒生产厂家可根据处理盒装置碳粉的带电电量计算加载在毛刷上合适的电压，并通过降压模块的降压实现加载在毛刷上的电压。由于电晕栅的电压远高于毛刷的电压，通过设置在电晕栅与毛刷之间的降压模块降压，能使毛刷上形成电压合适的直流电压，并且可根据不同碳粉的吸附特性计算降压模块合适的降压值，从而使毛刷的吸附能力最优，避免残留的碳粉从刷毛上掉下，影响打印质量。

Claims (10)

  1. 充电装置，包括
    电晕栅及毛刷，所述电晕栅具有一个侧壁（35）以及与所述侧壁（35）邻接的下壁，所述下壁上设有多个栅格；
    位于所述电晕栅下壁上方的电晕丝；
    其特征在于：
    所述电晕栅与所述毛刷之间设有降压模块，所述降压模块的一端与所述电晕栅连接，所述降压模块的另一端与所述毛刷连接。
  2. 根据权利要求1所述的充电装置，其特征在于：
    所述降压模块具有导电片以及与所述导电片串联连接的降压器件。
  3. 根据权利要求2所述的充电装置，其特征在于：
    所述导电片具有与所述电晕栅侧壁（35）对接的第一侧壁（41）以及通过连接壁与所述第一侧壁（41）连接的第二侧壁（42），所述第二侧壁（42）通过所述降压器件与所述毛刷连接。
  4. 根据权利要求2或3所述的充电装置，其特征在于：
    所述降压器件为电阻或降压电路。
  5. 根据权利要求2或3所述的充电装置，其特征在于：
    所述导电片的第一侧壁（41）设有向外凸起的凸块，所述电晕栅侧壁（35）设有与所述凸块配合的通孔。
  6. 感光鼓组件，包括
    下框架，所述下框架内安装有感光鼓，安装在下框架上的上框架以及安装在上框架内的充电装置，所述充电装置包括电晕栅及毛刷，所述电晕栅具有一个侧壁（35）以及与所述侧壁（35）邻接的下壁，所述下壁上设有多个栅格；
    位于所述电晕栅下壁上方的电晕丝；
    其特征在于：
    所述电晕栅与所述毛刷之间设有降压模块，所述降压模块的一端与所述电晕栅连接，所述降压模块的另一端与所述毛刷连接。
  7. 根据权利要求6所述的感光鼓组件，其特征在于：
    所述降压模块具有导电片以及与所述导电片串联连接的降压器件。
  8. 根据权利要求7所述的感光鼓组件，其特征在于：
    所述导电片具有与所述电晕栅侧壁（35）对接的第一侧壁（41）以及通过连接壁与所述第一侧壁（41）连接的第二侧壁（42），所述第二侧壁（42）通过所述降压器件与所述毛刷连接。
  9. 根据权利要求7或8所述的感光鼓组件，其特征在于：
    所述降压器件为电阻或降压电路。
  10. 根据权利要求7或8所述的感光鼓组件，其特征在于：
    所述导电片的第一侧壁（41）设有向外凸起的凸块，所述电晕栅侧壁（35）设有与所述凸块配合的通孔。
PCT/CN2010/079487 2009-12-24 2010-12-07 充电装置及感光鼓组件 WO2011076060A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/517,466 US20120269550A1 (en) 2009-12-24 2010-12-07 Charging Device and Photosensitive Drum Component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009202957197U CN201600556U (zh) 2009-12-24 2009-12-24 充电装置及感光鼓组件
CN200920295719.7 2009-12-24

Publications (1)

Publication Number Publication Date
WO2011076060A1 true WO2011076060A1 (zh) 2011-06-30

Family

ID=42811619

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/079487 WO2011076060A1 (zh) 2009-12-24 2010-12-07 充电装置及感光鼓组件

Country Status (3)

Country Link
US (1) US20120269550A1 (zh)
CN (1) CN201600556U (zh)
WO (1) WO2011076060A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201600556U (zh) * 2009-12-24 2010-10-06 珠海天威飞马打印耗材有限公司 充电装置及感光鼓组件
CN101887231A (zh) * 2010-04-20 2010-11-17 珠海天威飞马打印耗材有限公司 处理盒
CN104570680A (zh) * 2015-01-16 2015-04-29 中山鑫威打印耗材有限公司 一种电压产生单元
CN109116697A (zh) * 2018-10-30 2019-01-01 广州奥盛电子科技有限公司 一种方便清洁栅网的硒鼓

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1496239A (en) * 1974-12-09 1977-12-30 Xerox Corp Automatic charge control for reproduction machines
JPS5546771A (en) * 1978-09-29 1980-04-02 Ricoh Co Ltd Copy paper stripping unit for transfer type electrophotographic copier
JP2001159839A (ja) * 1999-06-22 2001-06-12 Brother Ind Ltd 画像形成装置及びプロセスカートリッジ
US20060222425A1 (en) * 2005-03-29 2006-10-05 Xerox Corporation Photoreceptor abrader for LCM
CN201340516Y (zh) * 2008-11-19 2009-11-04 珠海天威飞马打印耗材有限公司 充电辊导电片和具有该导电片的显影剂盒
CN201600556U (zh) * 2009-12-24 2010-10-06 珠海天威飞马打印耗材有限公司 充电装置及感光鼓组件

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6015653A (ja) * 1983-07-08 1985-01-26 Toshiba Corp 電子写真法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1496239A (en) * 1974-12-09 1977-12-30 Xerox Corp Automatic charge control for reproduction machines
JPS5546771A (en) * 1978-09-29 1980-04-02 Ricoh Co Ltd Copy paper stripping unit for transfer type electrophotographic copier
JP2001159839A (ja) * 1999-06-22 2001-06-12 Brother Ind Ltd 画像形成装置及びプロセスカートリッジ
US20060222425A1 (en) * 2005-03-29 2006-10-05 Xerox Corporation Photoreceptor abrader for LCM
CN201340516Y (zh) * 2008-11-19 2009-11-04 珠海天威飞马打印耗材有限公司 充电辊导电片和具有该导电片的显影剂盒
CN201600556U (zh) * 2009-12-24 2010-10-06 珠海天威飞马打印耗材有限公司 充电装置及感光鼓组件

Also Published As

Publication number Publication date
US20120269550A1 (en) 2012-10-25
CN201600556U (zh) 2010-10-06

Similar Documents

Publication Publication Date Title
JP2006091652A5 (zh)
WO2011076060A1 (zh) 充电装置及感光鼓组件
WO2015165322A1 (zh) 处理盒
JP2003330335A5 (zh)
JP2002040906A5 (zh)
EP1117015A3 (en) Process cartridge and image forming apparatus
JP2610027B2 (ja) コロナ放電式帯電器のコロナワイヤ清掃装置
JP5907837B2 (ja) 能動型オゾンスクラバ
WO2011131107A1 (zh) 处理盒
WO2011137742A1 (zh) 处理盒
US7599638B2 (en) Image forming apparatus having high voltage power supplies
US8744300B2 (en) Image forming apparatus
WO2012013141A1 (zh) 一种显影剂盒的改制方法
JPH11219004A (ja) 電荷保持性表面に均一な静電荷を印加するための帯電装置、プロセスカートリッジ及び電子写真プリント装置
WO2012013143A1 (zh) 显影剂盒的改制方法
WO2011124139A1 (zh) 处理盒
CN101893836B (zh) 处理盒
WO2013010452A1 (zh) 清洁刮刀
JP2003255660A (ja) 画像形成装置
CN2847337Y (zh) 激光打印机显影辊
JP2579062B2 (ja) 画像形成装置
CN203166171U (zh) 导电弹簧及处理盒
WO2013071853A1 (zh) 激光打印机及其改装方法
WO2011076061A1 (zh) 充电装置及感光鼓组件
WO2013078938A1 (zh) 综合提升电子照相成像设备功能的方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10838623

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 13517466

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10838623

Country of ref document: EP

Kind code of ref document: A1