WO2017113477A1 - 一种防止显影辊和感光鼓损坏的方法 - Google Patents

一种防止显影辊和感光鼓损坏的方法 Download PDF

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Publication number
WO2017113477A1
WO2017113477A1 PCT/CN2016/073974 CN2016073974W WO2017113477A1 WO 2017113477 A1 WO2017113477 A1 WO 2017113477A1 CN 2016073974 W CN2016073974 W CN 2016073974W WO 2017113477 A1 WO2017113477 A1 WO 2017113477A1
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WIPO (PCT)
Prior art keywords
photosensitive drum
developing roller
powder
roller
process cartridge
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PCT/CN2016/073974
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English (en)
French (fr)
Inventor
徐文欢
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徐文欢
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Publication of WO2017113477A1 publication Critical patent/WO2017113477A1/zh

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Classifications

    • 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
    • G03G21/1828—Prevention of damage or soiling, e.g. mechanical abrasion
    • 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
    • G03G21/181—Manufacturing or assembling, recycling, reuse, transportation, packaging or storage
    • 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
    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G03G15/0898—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals
    • 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
    • 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
    • G03G21/1828—Prevention of damage or soiling, e.g. mechanical abrasion
    • G03G21/1832—Shielding members, shutter, e.g. light, heat shielding, prevention of toner scattering

Definitions

  • the present invention relates to the field of electrophotography, and more particularly to a method of preventing damage to a developing roller and a photosensitive drum.
  • a common electrophotographic image forming apparatus includes a printer, a copying machine, and the like, which is a consumable installed in advance in an electrophotographic image forming apparatus by an end user, in which a developing roller for carrying a developer and a latent electrostatic latent image are mounted.
  • the photosensitive drum, the opposite arrangement of the two, the processing cartridge from the factory to the end user often takes a long time, in the process, the long roller contact between the developing roller and the photosensitive drum will not only cause the surface of the developing roller to be deformed, Moreover, the surface of the photosensitive drum is contaminated, which causes problems in printing.
  • the present invention provides a method for preventing damage of a developing roller and a photosensitive drum, by which the developing roller and the photosensitive drum can be kept separated during the use of the process cartridge from the factory to the end user, thereby effectively preventing development.
  • the surface of the roll is deformed and the surface of the drum is contaminated.
  • a method of preventing damage of a developing roller and a photosensitive drum wherein the developing roller and the photosensitive drum are respectively mounted in a process cartridge, and are disposed opposite to each other, the method comprising: a. assembling a process cartridge; b. at the developing roller and Install isolation devices between the drums.
  • the isolating device is a release paper or a spacer pin.
  • the isolating device is a spacer pin
  • the spacer pin is mounted at both longitudinal ends of the process cartridge.
  • the two isolation pins are two.
  • the method of preventing damage of the developing roller and the photosensitive drum according to the present invention is passed through the developing roller
  • the isolation device is installed between the photosensitive drum and the developing roller and the photosensitive drum are kept separated from each other during the use of the process cartridge from the factory to the end user, thereby effectively preventing the surface of the developing roller from being deformed and the surface of the photosensitive drum being contaminated.
  • FIG. 1 is a schematic structural view of a part of a process cartridge according to the present invention.
  • FIG. 2 is a schematic structural view of another part of the process cartridge according to the present invention.
  • FIG. 3 is a schematic view showing the overall structure of the powder feeding roller of the present invention.
  • 4A is a side view of the powder feed roller A-A direction of FIG. 3.
  • 4B is a side view of another powder feed roller.
  • FIG. 5 is a schematic view showing the installation of a release paper between a developing roller and a photosensitive drum in the process cartridge of the present invention.
  • FIG. 6 is a schematic structural view of a powder bin facing the waste toner bin in the process cartridge of the present invention.
  • FIG. 7 is a schematic view showing the structure of the powder silo facing away from the waste toner box in the process cartridge of the present invention.
  • FIG. 1 is a schematic structural view showing a part of a process cartridge according to the present invention
  • FIG. 2 is a schematic structural view showing another part of the process cartridge according to the present invention.
  • the process cartridge includes a powder bin 1 and a waste toner bin 2, and the powder bin 1 and the waste toner bin 2 can be combined with each other.
  • the powder bin 1 includes a powder bin housing 10, and is mounted in the powder silo shell.
  • a developing roller 11 and a powder discharging blade 12 in the body, the developing roller 11 and the powder discharging blade 12 are in contact with each other, the developing roller 11 is for carrying a developer, and sends the developer to the photosensitive drum, the powder discharging
  • the blade 12 is for adjusting the thickness of the developer on the developing roller 11;
  • the waste toner box 2 includes a waste toner box casing 20, and a photosensitive drum 21, a charging roller 22, and a cleaning blade 2 installed in the waste toner box casing 3.
  • the charging roller 22 and the cleaning blade 23 are both in contact with the photosensitive drum 21 for carrying an electrostatic latent image, and the charging roller 22 is for charging a uniform charge to the surface of the photosensitive drum 21 before imaging.
  • the cleaning blade 23 is used to scrape off the developer remaining on the photosensitive drum after the end of one image forming cycle.
  • the powder silo 1 further includes a powder feeding roller 13 (shown in FIG. 3) installed in the powder silo casing 10, the feeding The powder roller 13 is disposed in contact with the developing roller 11, and the powder feeding roller 13
  • the roller shaft 130 and the sponge body 131 covering the circumferential surface of the roller shaft are disposed, the process cartridge is operated, the surface of the sponge body 131 adsorbs the developer, and the adsorbed developer is conveyed to the developing roller 11.
  • step of disassembling the process cartridge further comprises separating the powder bin 1 of the process cartridge and the waste toner bin 2, and detaching the developing roller 11, the powder discharging blade 12, the photosensitive drum 21, the charging roller 22, and the cleaning blade 23.
  • the step of reassembling the process cartridge further includes reassembling the developing roller 11, the powder discharging blade 12, the photosensitive drum 21, the charging roller 22, and the cleaning blade 23, and reassembling the powder container 1 and the waste toner box 2 into a process cartridge.
  • the powder feeding roller includes a roller shaft 130 and a sponge body 131 covering the circumferential surface of the roller shaft, and the diameter of the roller shaft 130 is d2, the whole The diameter of the powder feeding roller 13 is d 1, and dl>d2. If the entire powder feeding roller 13 is scrapped due to the damage of the sponge 131, great waste of resources is caused, especially the metal roller 130. Therefore, the regeneration of the powder feed roller 13 needs to be considered.
  • FIG. 4A is a side view of the powder feed roller A-A direction of FIG. 3, and FIG. 4B is a side view of another powder feed roller.
  • the present invention enables the powder feed roller after cutting to satisfy the size requirement of the powder feed roller 13 of the present invention by cutting the sponge body of another powder feed roller.
  • the other powder feeding roller is simply referred to as a raw powder feeding roller
  • the powder feeding roller of the present invention is simply referred to as a target powder feeding roller.
  • the original powder feed roller 14 has a diameter d3, and the roller shaft 140 has a diameter d4.
  • the sponge body 141 of the original powder feeding roller 14 is cut so that the diameter of the powder feeding roller after cutting is the same as the diameter of the target powder feeding roller 13.
  • the sponge body 141 of the original powder feed roller 14 is cut so that the diameter of the powder feed roller after cutting is the same as the diameter of the target powder feed roller 13.
  • the above operation steps are based on the premise that the diameter d4 of the original powder feeding roller shaft 140 is the same as the diameter d2 of the target powder feeding roller shaft 130.
  • the operation steps are further included in a.
  • the step of reducing the diameter of the original powder feeding roller shaft 140 after the step; when the d2>d4 ⁇ , the operation step further includes the step of increasing the diameter of the original powder feeding roller shaft 140 after the step a.
  • the step of reducing the diameter of the original powder feeding roller shaft 140 is achieved by cutting the original powder feeding roller shaft 140.
  • the step of increasing the diameter of the original powder feeding roller shaft 140 may be achieved by providing an outer surface on the circumferential surface of the original powder feeding roller shaft 140, for example, a sleeve may be sleeved on the circumferential surface.
  • FIG. 5 is a schematic view showing the installation of a release paper between a developing roller and a photosensitive drum in the process cartridge of the present invention.
  • the developing roller 11 is for conveying the developer onto the photosensitive drum 21, and therefore, after the process cartridge is assembled, the developing roller 11 is necessarily at a position opposed to the photosensitive drum 21, particularly in the contact developing mode.
  • the developing roller 11 is disposed in contact with the photosensitive drum 21.
  • the process cartridge is often used for a long period of time from the factory to the end user. In the process, not only the surface of the developing roller 11 is deformed, but also the surface of the photosensitive drum 21 is contaminated, thereby causing problems in printing.
  • the present invention also provides a method of preventing damage of the developing roller 11 and the photosensitive drum 21, using the following steps: [0042] a. assembling a process cartridge;
  • the isolating device is preferably a release paper 3, and after the process cartridge is assembled, the release paper 3 is directly inserted between the developing roller 11 and the photosensitive drum 21, so that the developing roller 11 and the photosensitive drum 21 is not in direct contact, and therefore, printing defects caused by the long contact between the developing roller 11 and the photosensitive drum 21 can be effectively prevented.
  • the isolating device is not limited to the release paper 3, but may be a spacer pin (not shown) installed at two longitudinal ends of the process cartridge.
  • a spacer pin which is inserted between the developing roller 11 and the photosensitive drum 21 so that the developing roller 11 and the photosensitive drum 2 1 are not in direct contact, and the deformation of the developing roller 11 and the surface of the photosensitive drum 21 are effectively prevented from being contaminated. This causes printing defects.
  • FIG. 6 is a schematic structural view of the powder bin facing the waste toner bin in the process cartridge of the present invention
  • FIG. 7 is a schematic structural view of the powder bin facing away from the waste toner bin in the process cartridge of the present invention.
  • the housing of the powder silo 1 includes a front side 10a facing the waste toner box and a rear side 10b facing away from the waste toner box, and the front side 10a is provided with a first powder test.
  • a second powder detecting port 102 is disposed on the rear side surface 10b, and the first powder detecting port 101 is disposed opposite to the second powder detecting port 102, and the working principle thereof is: according to passing through the first powder detecting port 101 and The light of the second powder detecting port 102 determines the remaining amount of the developer in the powder bin 1.
  • the optical path between the first powder detecting port 101 and the second powder detecting port 102 is completely blocked by the developer.
  • the printer displays that the amount of the developer in the process cartridge is sufficient;
  • the developer in the powder silo 1 is gradually consumed, and the optical path between the first powder detecting port 101 and the second powder detecting port 102 can no longer be completely blocked by the developer, but light passes through the first powder detecting port 101.
  • the printer displays the remaining amount of the developer based on the amount of light transmitted.
  • the present invention also provides a method for reducing the amount of residual developer in the powder silo, specifically shielding at least one of the first powder detecting port 101 and the second powder detecting port 102, so that the light cannot pass through the first inspection. Powder mouth 101 and second powder tester 102.
  • the manner of shielding at least one of the first powder detecting port 101 and the second powder detecting port 102 may be performed by coating at least one of the first powder detecting port 101 and the second powder detecting port 102 with a black pigment, or may be adopted.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Dry Development In Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Cleaning In Electrography (AREA)

Abstract

一种防止显影辊（11）和感光鼓（21）损坏的方法，所述显影辊（11）和感光鼓（21）分别安装在处理盒中，且相对设置，所述方法包括：a.组装处理盒；b.在显影辊（11）和感光鼓（21）之间安装隔离装置，利用上述的防止显影辊（11）和感光鼓（21）损坏的方法，通过在显影辊（11）和感光鼓（21）之间安装隔离装置，可以在处理盒从出厂到终端用户开始使用期间，将显影辊（11）和感光鼓（21）一直保持分离状态，从而有效防止显影辊（11）表面变形以及感光鼓（21）表面被污染。

Description

一种防止显影辊和感光鼓损坏的方法 技术领域
[0001] 本发明涉及电子照相领域， 尤其涉及一种防止显影辊和感光鼓损坏的方法。
背景技术
[0002] 常见的电子照相成像设备包括打印机、 复印机等， 处理盒是被终端用户提前安 装在电子照相成像设备中的消耗品， 其中安装有用于承载显影剂的显影辊以及 用于承载静电潜像的感光鼓， 二者相对设置， 处理盒从出厂到终端用户使用往 往会耗费较长吋间， 在此过程中， 显影辊和感光鼓的长吋间接触不仅会导致显 影辊的表面会变形， 而且也会导致感光鼓的表面被污染， 从而使得打印出现问 题。
技术问题
[0003] 本发明提供一种防止显影辊和感光鼓损坏的方法， 利用该方法可以在处理盒从 出厂到终端用户幵始使用期间， 使显影辊和感光鼓一直保持分离状态， 从而有 效防止显影辊表面变形以及感光鼓表面被污染。
问题的解决方案
技术解决方案
[0004] 为达到上述发明目的， 本发明采用以下技术方案：
[0005] 一种防止显影辊和感光鼓损坏的方法， 所述显影辊和感光鼓分别安装在处理盒 中， 且相对设置， 所述方法包括： a.组装处理盒； b.在显影辊和感光鼓之间安装 隔离装置。
[0006] 优选的， 所述隔离装置为隔离纸或者为隔离销。
[0007] 当所述隔离装置为隔离销吋， 所述隔离销安装在处理盒的两个纵向末端。
[0008] 优选的， 所述隔离销为两个。
发明的有益效果
有益效果
[0009] 如上所述， 利用本发明所述的防止显影辊和感光鼓损坏的方法， 通过在显影辊 和感光鼓之间安装隔离装置， 可以在处理盒从出厂到终端用户幵始使用期间， 将显影辊和感光鼓一直保持分离状态， 从而有效防止显影辊表面变形以及感光 鼓表面被污染。
对附图的简要说明
附图说明
[0010] 图 1本发明涉及的处理盒的一部分结构示意图。
[0011] 图 2是本发明涉及的处理盒的另一部分结构示意图。
[0012] 图 3是本发明所述送粉辊的整体结构示意图。
[0013] 图 4A是图 3中送粉辊 A-A方向的侧视图。
[0014] 图 4B是另一种送粉辊的侧视图。
[0015] 图 5是本发明处理盒中显影辊和感光鼓之间安装隔离纸的示意图。
[0016] 图 6是本发明处理盒中粉仓面向废粉仓的结构示意图。
[0017] 图 7是本发明处理盒中粉仓背向废粉仓的结构示意图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0018] 下面结合附图详细描述本发明。
[0019] 图 1本发明涉及的处理盒的一部分结构示意图， 图 2是本发明涉及的处理盒的另 一部分结构示意图。
[0020] 处理盒包括粉仓 1和废粉仓 2， 所述粉仓 1和废粉仓 2可以相互结合， 如图所示， 粉仓 1包括粉仓壳体 10、 以及安装在粉仓壳体中的显影辊 11和出粉刀 12， 所述显 影辊 11和出粉刀 12接触安装， 所述显影辊 11用于承载显影剂， 并将显影剂送至 感光鼓上， 所述出粉刀 12用于调节显影剂在显影辊 11上的厚度； 所述废粉仓 2包 括废粉仓壳体 20、 以及安装在废粉仓壳体中的感光鼓 21、 充电辊 22和清洁刮刀 2 3， 所述充电辊 22和清洁刮刀 23均与感光鼓 21接触， 所述感光鼓 21用于承载静电 潜像， 充电辊 22用于在成像前为感光鼓 21的表面充上均匀的电荷， 清洁刮刀 23 用于在一个成像周期结束后刮除残留在感光鼓上的显影剂。
[0021] 为了将粉仓 1中的显影剂输送至显影辊 11上， 所述粉仓 1还包括安装在粉仓壳体 10中的送粉辊 13 (如图 3所示） ， 所述送粉辊 13与显影辊 11接触设置， 送粉辊 13 包括辊轴 130以及覆盖在辊轴圆周面上的海绵体 131， 处理盒工作吋， 所述海绵 体 131表面吸附显影剂， 并将吸附的显影剂输送至显影辊 11。
[0022] [处理盒的再生]
[0023] 在进行处理盒的再生步骤前， 一般先对处理盒表面进行清洁， 然后进行以下再 生步骤：
[0024] a.拆卸处理盒的步骤；
[0025] b.清洁粉仓壳体 10和废粉仓壳体 20的步骤；
[0026] c.向粉仓壳体 10中添加新显影剂的步骤；
[0027] d.重新组装所述处理盒的步骤。
[0028] 其中， 所述拆卸处理盒的步骤还包括将处理盒的粉仓 1和废粉仓 2分离， 并拆卸 显影辊 11、 出粉刀 12、 感光鼓 21、 充电辊 22和清洁刮刀 23; 所述重新组装处理 盒的步骤还包括重新组装显影辊 11、 出粉刀 12、 感光鼓 21、 充电辊 22和清洁刮 刀 23， 并将粉仓 1和废粉仓 2重新组装成处理盒。
[0029] 图 3是本发明所述送粉辊的整体结构示意图， 所述送粉辊包括辊轴 130以及覆盖 在辊轴的圆周面上的海绵体 131， 辊轴 130的直径为 d2， 整个送粉辊 13的直径为 d 1， 且 dl〉d2， 如果由于所述海绵体 131破损而报废掉整个送粉辊 13， 也会造成 极大的资源浪费， 尤其是金属材质的辊轴 130， 因此， 需考虑送粉辊 13的再生。
[0030] 图 4A是图 3中送粉辊 A-A方向的侧视图， 图 4B是另一种送粉辊的侧视图。
[0031] 本发明通过切削另一种送粉辊的海绵体， 使得切削后的送粉辊能够满足本发明 所述送粉辊 13的尺寸要求。 为方便描述， 所述另一种送粉辊简称为原送粉辊， 本发明所述送粉辊简称为目标送粉辊。
[0032] 如图 4B所示， 原送粉辊 14的直径为 d3， 辊轴 140的直径为 d4， 为了使得原送粉 辊 14能够满足目标送粉辊 13的参数指标， 如上所述， 通过切削原送粉辊 14的海 绵体 141， 使得切削后的送粉辊直径与目标送粉辊 13的直径相同， 具体操作步骤 为：
[0033] a.清洁原送粉辊 14的表面；
[0034] b.切削原送粉辊 14的海绵体 141， 使得切削后的送粉辊直径与目标送粉辊 13的直 径相同。 [0035] 上述操作步骤是以原送粉辊辊轴 140的直径 d4与目标送粉辊辊轴 130的直径 d2相 同为前提的， 当所述 d2 < d4吋， 所述操作步骤还包括在 a步骤后进行的减小原送 粉辊辊轴 140直径的步骤； 当所述 d2〉d4吋， 所述操作步骤还包括在 a步骤后进行 的增加原送粉辊辊轴 140直径的步骤。
[0036] 所述减小原送粉辊辊轴 140直径的步骤通过切削原送粉辊辊轴 140实现。
[0037] 所述增加原送粉辊辊轴 140直径的步骤可以通过在原送粉辊辊轴 140的圆周面上 设置外接物实现， 例如可以是在圆周面上套接轴套。
[0038] [防止感光鼓和显影辊损坏的方法以及装置]
[0039] 图 5是本发明处理盒中显影辊和感光鼓之间安装隔离纸的示意图。
[0040] 如上所述， 显影辊 11用于将显影剂输送至感光鼓 21上， 因此， 当处理盒完成组 装后， 显影辊 11必定处于与感光鼓 21相对的位置， 尤其在接触式显影方式中， 显影辊 11与感光鼓 21接触设置。 处理盒从出厂到终端用户使用往往会耗费较长 吋间， 在此过程中， 不仅显影辊 11的表面会变形， 感光鼓 21的表面也会被污染 ， 从而使得打印出现问题。
[0041] 本发明还提供一种防止显影辊 11和感光鼓 21损坏的方法， 采用如下步骤： [0042] a.组装处理盒；
[0043] b.在显影辊 11和感光鼓 21之间安装隔离装置。
[0044] 如图 5所示， 所述隔离装置优选的是隔离纸 3， 当处理盒组装完毕后， 直接在显 影辊 11和感光鼓 21之间插入隔离纸 3， 使得显影辊 11和感光鼓 21不直接接触， 因 而， 可有效防止因显影辊 11和感光鼓 21长吋间接触造成的打印缺陷。
[0045] 当然， 所述隔离装置并不限于隔离纸 3， 还可以是安装在处理盒两个纵向末端 的隔离销 （未示出） ， 当处理盒组装完毕后， 分别在处理盒的两个纵向末端安 装隔离销， 所述隔离销插入显影辊 11和感光鼓 21之间， 使得显影辊 11和感光鼓 2 1不直接接触， 也可以有效防止显影辊 11变形以及感光鼓 21表面被污染， 从而造 成打印缺陷。
[0046] [减小粉仓中残余显影剂量的方法]
[0047] 图 6是本发明处理盒中粉仓面向废粉仓的结构示意图； 图 7是本发明处理盒中粉 仓背向废粉仓的结构示意图。 [0048] 如图 6和图 7所示， 粉仓 1的壳体包括面向废粉仓的前侧面 10a以及背向废粉仓的 后侧面 10b， 所述前侧面 10a上设置有第一检粉口 101， 后侧面 10b上设置有第二检 粉口 102， 所述第一检粉口 101与第二检粉口 102相对设置， 其工作原理是： 根据 穿过第一检粉口 101和第二检粉口 102的光线多少判断粉仓 1中显影剂的剩余量。 当粉仓 1中的显影剂较多吋， 第一检粉口 101和第二检粉口 102之间的光路完全被 显影剂阻断， 此吋， 打印机显示处理盒中的显影剂量充足； 当粉仓 1中的显影剂 逐渐被消耗掉， 第一检粉口 101和第二检粉口 102之间的光路不能再完全被显影 剂阻断， 而是有光线穿过第一检粉口 101和第二检粉口 102吋， 打印机根据透过 的光线量显示显影剂的剩余量。
[0049] 然而， 由于所述第一检粉口 101和第二检粉口 102均不是设置在粉仓 1的最底部 ， 因此， 当打印机显示处理盒中的显影剂被消耗完吋， 实际上， 位于所述检粉 口与粉仓 1的最底部之间还残留有显影剂， 也就说粉仓 1中的显影剂并没有被完 全消耗掉， 如果终端用户按照打印机的提示而更换处理盒， 势必会造成显影剂 的浪费。
[0050] 本发明还提供一种减小粉仓中残余显影剂量的方法， 具体为遮挡至少第一检粉 口 101和第二检粉口 102之一， 使得光线不能同吋穿过第一检粉口 101和第二检粉 Π 102。
[0051] 所述遮挡至少第一检粉口 101和第二检粉口 102之一的方式可以采用黑色颜料涂 覆至少第一检粉口 101和第二检粉口 102之一， 也可以采用在至少第一检粉口 101 和第二检粉口 102上安装不透光部件的方式。
[0052] 如上所述， 利用本发明所述的防止显影辊和感光鼓损坏的方法， 通过在显影辊 和感光鼓之间安装隔离装置， 可以在处理盒从出厂到终端用户幵始使用期间， 将显影辊和感光鼓一直保持分离状态， 从而有效防止显影辊表面变形以及感光 鼓表面被污染。
[0053]

Claims

权利要求书
一种防止显影辊和感光鼓损坏的方法， 所述显影辊和感光鼓分别安装 在处理盒中， 且相对设置， 其特征在于， 所述方法包括：
a.组装处理盒；
b.在显影辊和感光鼓之间安装隔离装置。
根据权利要求 1所述的一种防止显影辊和感光鼓损坏的方法， 其特征 在于， 所述隔离装置为隔离纸。
根据权利要求 1所述的一种防止显影辊和感光鼓损坏的方法， 其特征 在于， 所述隔离装置为隔离销。
根据权利要求 3所述的一种防止显影辊和感光鼓损坏的方法， 其特征 在于， 所述隔离销安装在处理盒的两个纵向末端。
根据权利要求 4所述的一种防止显影辊和感光鼓损坏的方法， 其特征 在于， 所述隔离销为两个。
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