WO2012013148A1 - 一种鼓粉盒 - Google Patents

一种鼓粉盒 Download PDF

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Publication number
WO2012013148A1
WO2012013148A1 PCT/CN2011/077684 CN2011077684W WO2012013148A1 WO 2012013148 A1 WO2012013148 A1 WO 2012013148A1 CN 2011077684 W CN2011077684 W CN 2011077684W WO 2012013148 A1 WO2012013148 A1 WO 2012013148A1
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WO
WIPO (PCT)
Prior art keywords
flange
metal tube
toner cartridge
conductive
grounding
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Application number
PCT/CN2011/077684
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English (en)
French (fr)
Inventor
周宏辉
周忠宝
Original Assignee
珠海天威飞马打印耗材有限公司
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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
Publication of WO2012013148A1 publication Critical patent/WO2012013148A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1867—Means for handling the process cartridge in the apparatus body for electrically connecting the process cartridge to the apparatus, electrical connectors, power supply
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
    • G03G21/1814—Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing

Definitions

  • the present invention relates to a toner cartridge applied to an image forming apparatus, and more particularly to a grounding structure of a photosensitive drum on a toner cartridge.
  • the present application claims priority to Chinese Patent Application No. 201020274201.8, entitled “A Toner Cartridge”, filed on July 29, 2010, the entire contents of which is incorporated herein by reference.
  • the toner cartridge applied to an image forming apparatus, which has the following structure: as shown in FIG. 1 to FIG. 3, the toner cartridge includes a photosensitive drum 1' and a non-driving end cover 2', etc. , in which the photosensitive drum 1' is formed by an imaging metal tube (usually an aluminum tube) 11', a flange 12', the driving head 13' and the conductive elastic piece 14' located in the driving head 13' are composed.
  • an imaging metal tube usually an aluminum tube
  • the Flange 12', the driving head 13' and the non-driving end cover 2' are insulating materials, the imaging metal tube 11' needs to be grounded during the imaging process, and is electrically connected to the imaging metal tube 11' by using the conductive elastic piece 14', the conductive elastic piece 14' Contact with the conductive bars in the drive components of the imaging device forms a closed loop ground.
  • This mounting method makes the structure of the conductive elastic piece 14' relatively fragile and the grounding reliability is not strong.
  • the technical problem to be solved by the present invention is to provide a toner cartridge having a more reliable reliability of the photosensitive drum grounding structure in view of the defects of the prior art.
  • a toner cartridge is designed to be mounted in an image forming apparatus having a grounded conductive frame, the toner cartridge including a cartridge frame and rotatably supported by the a photosensitive drum of a cartridge frame having an imaging metal tube, a driving head at a driving end of the imaging metal tube, and a flange fixed to a non-driving end of the imaging metal tube, the cartridge frame being adjacent to the imaging metal tube a non-driving end cover is provided at the driving end, the flange is made of a conductive material and is electrically connected with the imaging metal tube, and the flange and the non-driving end cover are further provided with a conductive A grounding end cap of material formed and electrically connected to the flange, the grounding end cap having a contact portion that is engageable with the grounded conductive frame to form a ground connection.
  • the contact surface between the flange and the grounding end cap is coated with a conductive paste in order to increase the reliability of its electrical conduction.
  • the imaging metal tube is an aluminum tube.
  • the flange is made of metal or conductive POM.
  • the ground end cap is made of metal or conductive POM.
  • the invention has the beneficial effects that: since the conductive elastic piece in the driving drum driving head is omitted, the flange and the grounding end cover of the non-driving end of the photosensitive drum are contacted with the grounding conductive frame in the image forming apparatus to form a ground connection, and the structure thereof Better strength and improved grounding reliability of the drum.
  • FIG. 1 is a perspective view of a conventional toner cartridge.
  • Figure 2 is a perspective view of the photosensitive drum in the toner cartridge shown in Figure 1.
  • Figure 3 is a cross-sectional view showing the image forming metal tube and the driving head of the photosensitive drum shown in Figure 2.
  • Figure 4 is a perspective view of a toner cartridge of the present invention.
  • Figure 5 is a perspective view of the photosensitive drum in the toner cartridge shown in Figure 4.
  • Figure 6 is a cross-sectional view of the photosensitive drum shown in Figure 5.
  • Figure 7 is an exploded perspective view of the non-drive end of the toner cartridge shown in Figure 4;
  • Figure 8 is a partial schematic view of the non-drive end of the toner cartridge of Figure 4.
  • FIG. 9 is a schematic view showing the cooperation structure between the non-driving end of the toner cartridge shown in FIG. 4 and the positioning mechanism and the grounding conductive frame in the image forming apparatus.
  • the toner cartridge 1 of the present invention can be mounted in an image forming apparatus (for example, a laser printer or a laser copying machine) having a grounded conductive frame 6, which is made of a conductive material and is connected to a ground wire.
  • the toner cartridge 1 includes a cartridge frame 2 and a photosensitive drum 3 rotatably supported by the cartridge frame 2, the photosensitive drum 3 having an imaging metal tube 31 (for example, an aluminum tube), and a driving head 32 located at a driving end of the imaging metal tube 31.
  • the head 32 does not have the conductive spring 14' as shown in FIG.
  • the cartridge frame 2 is provided with a non-driving end cap 4 near the non-driving end of the imaging metal tube 31, and a grounding end cap 5 is disposed between the flange 33 and the non-driving end cap 4, which
  • the grounding end cover 5 is also made of a conductive material such as metal or conductive POM and is electrically connected to the flange 33, and in order to increase the reliability of its electrical conduction, the contact surface of the flange 33 and the grounding end cover 5 may also be coated. Conductive paste.
  • the grounding end cover 5 has two contact portions 51, 52 thereon.
  • the positioning mechanism 7 in the image forming apparatus moves downward and the toner container 1 is pressed down, and the ground end cover 5 is forced downward and electrically conductive to the ground.
  • the frame 6 cooperates, on the one hand, to function as a positioning, on the other hand, contacts the grounded conductive frame 6 through the contacts 51, 52 to form a ground connection, and the imaging metal is formed due to the electrical conductivity of the ground end cover 5 and the flange 33 itself.
  • the tube 31 is connected to the grounded conductive frame 6 to form a closed loop, which serves to ground the photosensitive drum 5.
  • the toner cartridge of the invention eliminates the conductive elastic piece in the driving drum of the photosensitive drum, and instead contacts the grounding conductive frame in the imaging device through the flange of the non-driving end of the photosensitive drum and the grounding end cover to form a ground connection, and the structural strength thereof is further improved. Well, the grounding reliability of the drum is improved.

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  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

本发明提供了一种鼓粉盒（1），可安装在具有接地导电框架的成像装置中，该鼓粉盒（1）包括盒框架（2）和可转动地支撑于盒框架（2）的感光鼓（3），感光鼓（3）具有成像金属管（31）、位于该成像金属管驱动端的驱动头（32）以及固定在该成像金属管非驱动端的法兰（33），盒框架在靠近成像金属管的非驱动端处设有非驱动端端盖（4），法兰由导电材料制成并与成像金属管形成电连接，法兰与非驱动端端盖之间还设有由导电材料制成并与法兰形成电连接的接地端盖（5），该接地端盖（5）上具有可与接地导电框架接触以形成接地连接的接触部（51、52）。

Description

一种鼓粉盒 技术领域
本发明涉及一种应用于成像装置的鼓粉盒，具体来说涉及鼓粉盒上的感光鼓的接地结构。本申请要求于2010年07月29日提交中国专利局、申请号为201020274201.8、名称为“一种鼓粉盒”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
背景技术
中国发明专利申请说明书CN200510097878.2中，公布了应用于成像装置的鼓粉盒，其结构如下：如图1至图3，该鼓粉盒包括感光鼓1’和非驱动端端盖2’等，其中感光鼓1’由成像金属管（通常为铝管）11’、法兰 12’、驱动头13’和位于驱动头13’内的导电弹片14’组成。法兰 12’、驱动头13’和非驱动端端盖2’为绝缘材料，成像金属管11’在成像过程中需要接地，通过使用导电弹片14’与成像金属管11’电连接，导电弹片14’与成像装置的驱动部件中的导电棒接触形成闭合回路接地。这种安装方式使得导电弹片14’的结构比较脆弱，接地可靠性不强。
技术问题
本发明要解决的技术问题在于针对现有技术的缺陷，提供一种感光鼓接地结构可靠性更强的鼓粉盒。
技术解决方案
为解决上述技术问题，本发明采用了以下的技术方案：设计一种鼓粉盒，可安装在具有接地导电框架的成像装置中，所述鼓粉盒包括盒框架和可转动地支撑于所述盒框架的感光鼓，所述感光鼓具有成像金属管、位于该成像金属管驱动端的驱动头以及固定在该成像金属管非驱动端的法兰，所述盒框架在靠近所述成像金属管的非驱动端处设有非驱动端端盖，所述法兰由导电材料制成并与所述成像金属管形成电连接，所述法兰与所述非驱动端端盖之间还设有由导电材料制成并与所述法兰形成电连接的接地端盖，该接地端盖上具有可与所述接地导电框架接触以形成接地连接的接触部。
　　优选地，在所述法兰与所述接地端盖之间的接触面上涂有导电膏，以便于增加其导电的可靠性。
优选地，所述成像金属管为铝管。
优选地，所述法兰由金属或导电POM制成。
优选地，所述接地端盖由金属或导电POM制成。
 有益效果
本发明的有益效果在于：由于省去了感光鼓驱动头内的导电弹片，改为通过感光鼓非驱动端的法兰和接地端盖与成像装置内的接地导电框架接触以形成接地连接，其结构强度更好，提高了感光鼓的接地可靠性。
附图说明
图1为现有的一种鼓粉盒的立体图。
　　图2为图1所示鼓粉盒中的感光鼓立体图。
　　图3为图2所示感光鼓的成像金属管和驱动头的剖视图。
　　图4为本发明的一种鼓粉盒中的立体图。
　　图5为图4所示鼓粉盒中的感光鼓立体图。
　　图6为图5所示感光鼓的剖视图。
　　图7为图4所示鼓粉盒的非驱动端的零件分解图。
　　图8为图4所示鼓粉盒的非驱动端的局部示意图。
　　图9为图4所示鼓粉盒的非驱动端与成像装置内的定位机构及接地导电框架的配合结构示意图。
 本发明的实施方式
参见图4至图6，本发明的鼓粉盒1可安装在具有接地导电框架6的成像装置（例如激光打印机或激光复印机）中，接地导电框架6由导电材料制成并且连接地线，该鼓粉盒1包括了盒框架2和可转动地支撑于盒框架2的感光鼓3，感光鼓3具有成像金属管31（例如为铝管）、位于该成像金属管31的驱动端的驱动头32和固定在成像金属管31的非驱动端的法兰33，该法兰33由诸如金属或导电POM（聚甲醛，俗称赛钢）等导电材料制成并与成像金属管31形成电连接，而驱动头32则没有如图3所示的导电弹片14’。
　　参见图7和图8，盒框架2在靠近成像金属管31的非驱动端处设有非驱动端端盖4，法兰33与非驱动端端盖4之间设有接地端盖5，该接地端盖5同样由诸如金属或导电POM等导电材料制成并与法兰33形成电连接，并且为了增加其导电的可靠性，在法兰33与接地端盖5的接触面还可以涂有导电膏。该接地端盖5上具有两个接触部51、52。
　　参见图9，当鼓粉盒1被安装到成像装置时，成像装置内的定位机构7向下移动并将鼓粉盒1向下压紧定位，接地端盖5受力向下并与接地导电框架6配合，一方面起到定位的作用，另一方面通过接触部51、52与接地导电框架6接触以形成接地连接，并且由于接地端盖5和法兰33本身的导电性，使得成像金属管31与接地导电框架6连接形成闭合回路，达到感光鼓5接地的作用。
　　以上所述的仅是本发明的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。
 工业实用性
本发明的鼓粉盒省去了感光鼓驱动头内的导电弹片，改为通过感光鼓非驱动端的法兰和接地端盖与成像装置内的接地导电框架接触以形成接地连接，其结构强度更好，提高了感光鼓的接地可靠性。

Claims (5)

  1. 一种鼓粉盒，可安装在具有接地导电框架的成像装置中，所述鼓粉盒包括盒框架和可转动地支撑于所述盒框架的感光鼓，所述感光鼓具有成像金属管、位于该成像金属管驱动端的驱动头以及固定在该成像金属管非驱动端的法兰，所述盒框架在靠近所述成像金属管的非驱动端处设有非驱动端端盖，其特征在于，所述法兰由导电材料制成并与所述成像金属管形成电连接，所述法兰与所述非驱动端端盖之间还设有由导电材料制成并与所述法兰形成电连接的接地端盖，该接地端盖上具有可与所述接地导电框架接触以形成接地连接的接触部。
  2. 根据权利要求1所述的鼓粉盒，其特征在于，在所述法兰与所述接地端盖之间的接触面上涂有导电膏。
  3. 根据权利要求1所述的鼓粉盒，其特征在于，所述成像金属管为铝管。
  4. 根据权利要求1所述的鼓粉盒，其特征在于，所述法兰由金属或导电POM制成。
  5. 根据权利要求1所述的鼓粉盒，其特征在于，所述接地端盖由 金属或导电POM制成。
PCT/CN2011/077684 2010-07-29 2011-07-27 一种鼓粉盒 WO2012013148A1 (zh)

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CN2010202742018U CN202003140U (zh) 2010-07-29 2010-07-29 一种鼓粉盒
CN201020274201.8 2010-07-29

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Publication number Priority date Publication date Assignee Title
CN102591184B (zh) * 2012-03-19 2013-12-18 珠海天威飞马打印耗材有限公司 处理盒及其感光鼓安装方法和更换方法

Citations (8)

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JPS63200864U (zh) * 1987-06-16 1988-12-23
JPH10123915A (ja) * 1996-10-21 1998-05-15 Oki Data:Kk 画像形成装置
US5815773A (en) * 1997-06-27 1998-09-29 Xerox Corporation Composite photoreceptor flange
JP2002023560A (ja) * 2000-07-04 2002-01-23 Fuji Denki Gazo Device Kk 電子写真用感光体の接地機構
CN1430114A (zh) * 2001-12-28 2003-07-16 佳能株式会社 处理盒和电子照相成像设备
CN2781421Y (zh) * 2005-04-15 2006-05-17 珠海天威飞马打印耗材有限公司 激光打印机用碳粉盒
CN101241324A (zh) * 2007-02-07 2008-08-13 京瓷美达株式会社 感光鼓单元和具有该感光鼓单元的图像形成装置
CN101479673A (zh) * 2006-12-08 2009-07-08 佳能株式会社 处理盒及电子照相成像装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63200864U (zh) * 1987-06-16 1988-12-23
JPH10123915A (ja) * 1996-10-21 1998-05-15 Oki Data:Kk 画像形成装置
US5815773A (en) * 1997-06-27 1998-09-29 Xerox Corporation Composite photoreceptor flange
JP2002023560A (ja) * 2000-07-04 2002-01-23 Fuji Denki Gazo Device Kk 電子写真用感光体の接地機構
CN1430114A (zh) * 2001-12-28 2003-07-16 佳能株式会社 处理盒和电子照相成像设备
CN2781421Y (zh) * 2005-04-15 2006-05-17 珠海天威飞马打印耗材有限公司 激光打印机用碳粉盒
CN101479673A (zh) * 2006-12-08 2009-07-08 佳能株式会社 处理盒及电子照相成像装置
CN101241324A (zh) * 2007-02-07 2008-08-13 京瓷美达株式会社 感光鼓单元和具有该感光鼓单元的图像形成装置

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