WO2011157154A1 - 激光打印机用碳粉盒 - Google Patents

激光打印机用碳粉盒 Download PDF

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WO2011157154A1
WO2011157154A1 PCT/CN2011/075070 CN2011075070W WO2011157154A1 WO 2011157154 A1 WO2011157154 A1 WO 2011157154A1 CN 2011075070 W CN2011075070 W CN 2011075070W WO 2011157154 A1 WO2011157154 A1 WO 2011157154A1
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Prior art keywords
wall
toner
toner cartridge
cartridge
laser printer
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PCT/CN2011/075070
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English (en)
French (fr)
Inventor
吴鸣
卢艳
殷晓明
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珠海天威飞马打印耗材有限公司
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Publication of WO2011157154A1 publication Critical patent/WO2011157154A1/zh

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    • 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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • G03G15/0881—Sealing of developer cartridges
    • G03G15/0886—Sealing of developer cartridges by mechanical means, e.g. shutter, plug
    • 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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
    • G03G15/0868—Toner cartridges fulfilling a continuous function within the electrographic apparatus during the use of the supplied developer material, e.g. toner discharge on demand, storing residual toner, acting as an active closure for the developer replenishing opening
    • 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
    • G03G2215/06—Developing structures, details
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0692—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material using a slidable sealing member, e.g. shutter

Definitions

  • the present invention relates to a toner cartridge for a laser printer, particularly a toner cartridge for storing toner and supplying the toner to a laser printer, which comprises a sealing door and a toner hopper, and the toner hopper provides a storage space for the toner.
  • the toner cartridge and the laser printer are connected or partitioned by a sealing door disposed on the toner cartridge to complete the transfer process of the toner from the toner cartridge to the laser printer.
  • the present invention is based on a Chinese utility model patent application filed on Jun. 14, 2010, and the application number is 201020226099.4, the content of which is incorporated herein by reference.
  • Image forming apparatuses usually include a variety of models such as copiers, laser printers, facsimile machines, ribbon printers, and LED printers.
  • the toner is the final imaging medium for realizing the conversion of the image ⁇ ⁇ light ⁇ ⁇ electricity ⁇ ⁇ map.
  • the toner transferred by the developing roller comes from the toner hopper.
  • the toner storage capacity of the toner hopper is limited by the rated volume of the storage body. Therefore, the toner in the toner hopper needs to be replenished after it is used up, or The powder toner cartridge is recycled as a whole, and the other components of the toner cartridge such as the developing roller, the powder feeding roller, the powder discharging knife, the powder feeding frame, the toner cartridge, and the carrier can be reused.
  • the main functional blocks of the laser printer include a laser scanning unit, a photoelectric conversion unit, a charging unit, a developing unit, a transfer unit, and a fixing unit.
  • the main components of the laser scanning unit are a laser generator and a light reflection transmission system composed of optical elements such as prisms and lenses.
  • the main component of the photoelectric conversion unit is a photosensitive drum.
  • the charging unit mainly includes a positive charge grid-controlled corona charging roller or other forms of charging roller.
  • the developing unit is composed of a powder storage chamber for storing toner, a carrier chamber for storing the magnetic carrier, a developing chamber, and a developing roller.
  • the developing roller, the powder feeding roller, and the powder discharging knife are disposed in the developing chamber.
  • the powder feeding rack and the toner hopper together form a powder storage chamber.
  • the transfer unit mainly includes a transfer roller.
  • the fixing unit is composed of a heat roller and a pressure roller.
  • a common toner cartridge or process cartridge usually includes a photoelectric conversion unit, a charging unit, a developing unit, and the like, which are functions of a light-to-electricity-to-image conversion function.
  • This type of construction generally obtains a multi-functional integrated toner cartridge. Or process the box.
  • the photoelectric conversion unit and the charging unit are directly disposed on the laser printer main unit, and the toner cartridge includes only the developing unit or only the toner for performing the toner storage function.
  • the warehouse can only obtain a toner cartridge that can only perform a single development function or a toner storage function.
  • the single-function toner cartridge and the laser printer mainframe are assembled in the form of an assembly. Match between.
  • the surface of the photosensitive drum is uniformly charged by the charging roller.
  • the laser scanner emits a modulated laser beam containing image information to the photosensitive drum, and after the laser irradiation, forms a static voltage map having a different distribution on the surface of the photosensitive drum, that is, an electrostatic latent image corresponding to the image to be reproduced.
  • the toner from the developing roller is in turn adsorbed on the surface of the photosensitive drum, and after covering the electrostatic latent image, it is converted into a visible image which can be visually observed.
  • the photosensitive drum rotates, the visible image formed by the toner on the surface of the photosensitive drum is transposed to the position where the transfer roller is located.
  • the toner in the form of visible image is transferred onto the surface of the recording medium such as paper by the transfer voltage of the transfer roller, and then the visible image on the recording medium is heated and pressurized by the heating roller and the pressure roller.
  • the visible image formed by the toner is permanently cured on the recording medium.
  • the toner is the only material carrier that forms an image, and is contained and stored in the toner hopper.
  • 1 to 3 a structure of a conventional toner cartridge 100 and its components is shown.
  • the toner cartridge 100 is only used to contain, store, and supply toner. It includes a cartridge body 101 that is cylindrical in shape.
  • a powder outlet 102 is disposed on the wall of the cartridge body 101, and one end of the cartridge body 101 having the opening 106 is sealed by the second end cap 104, and the other end of the cartridge body 101 is sealed by the bottom wall.
  • a sealing door 105 is provided in the hollow interior of the cartridge body 101.
  • One of the axial ends of the sealing door 105 is rotatably supported on the second end cover 104, and the other end is fixedly supported by the first end cover 103 through the bottom wall of the cartridge body 101.
  • the sealing door 105 fixed to the first end cap 103 also rotates relative to the cartridge body 101, thereby opening or closing the powder outlet 102.
  • the aforementioned rotating operation of the sealing door 105 constitutes a necessary step of controlling the state in which the toner cartridge 100 and the laser printer are in communication or disconnection.
  • the manner in which the cartridge body 101 is coupled to the second end cap 104 is such that the second end cap 104 corresponds to the portion of the cartridge wall 108 for forming the opening 106, and the clip slot 107 is provided for insertion into the clip slot 107 through the cartridge wall 108.
  • the lock pin 109 and the lock hole 110 are respectively disposed at positions corresponding to each other on the second end cap 104 and the cartridge body 101, through the latch The mutual engagement between the 109 and the keyhole 110 locks the second end cap 104 and the cartridge body 101.
  • a powder adding port 111 is opened correspondingly on the second end cover 104.
  • the powder opening 111 is typically closed by a lid 112.
  • a sealing ring 113 prepared by a sponge is required in the clamping groove 107, and the sealing ring 113 is in the longitudinal direction of the cartridge body 101.
  • the width in the cross section is greater than the width in the same direction of the slot 107.
  • the shape of the clip groove 107 must be adapted to the shape of the cartridge wall 108, the shape of the clip groove 107 has an irregular feature, and the two groove walls constituting the clip groove 107 have a positional difference in the longitudinal direction of the cartridge body 101, That is, the clip groove 107 is formed by the inner wall 114 and the outer wall 115 along the radial direction of the cartridge body 101, and is used to define the end of the clip groove 107 in the longitudinal direction of the cartridge body 101 with reference to the bottom wall 116 of the second end cap 104.
  • the upper height is in a state where the inner wall 114 is lower than the outer wall 115.
  • the object of the present invention is to provide a toner cartridge for a laser printer which is excellent in sealing, in view of the problem of powder leakage caused by poor sealing of the sealing cartridge.
  • the sealing door is disposed in the hollow inner cavity of the toner cartridge for controlling opening and/or closing of the powder outlet.
  • One of the shaft ends of the sealing door is rotatably supported on the second end cover, and the second end of the shaft passes through the bottom wall of the toner hopper and is fixedly supported on the first end cover.
  • the clip groove is along the inner wall of the toner cartridge radial direction and the end of the outer wall, and the height of both in the longitudinal direction of the toner cartridge is at a state where the end of the inner wall is higher than the end of the outer wall.
  • the radial dimension of the inner ring of the seal ring in the radial direction of the toner hopper is equal to or slightly smaller than the radial dimension of the outer surface of the inner wall of the nip groove in the radial direction of the toner hopper.
  • the width of the seal ring in the radial direction of the toner hopper is slightly larger than the width of the nip groove in the radial direction of the toner hopper.
  • the toner cartridge for a laser printer of the present invention sets the height of the end of the inner wall of the clamping groove to be higher than the end of the outer wall of the clamping groove, so that when the sealing ring is assembled, The inner ring of the sealing ring can be directly placed on the inner wall of the clamping groove, and the sealing ring can be pushed into the clamping groove through the open end of the toner cartridge. In this way, not only the phenomenon that the original sealing ring is twisted but also causes the toner cartridge to leak powder is avoided, and the auxiliary tools required for the original sealing ring assembly process are also eliminated, thereby effectively reducing the assembly difficulty of the sealing ring.
  • Figure 1 is a perspective view of a conventional toner cartridge for a laser printer
  • Figure 2 is an exploded perspective view of a toner cartridge for a conventional laser printer
  • Figure 3 is a perspective view of an end cap of a conventional toner cartridge for a laser printer
  • Figure 4 is an exploded perspective view of the end cap of the toner cartridge for a laser printer of the present invention
  • Figure 5 is a perspective view of the end cap of the toner cartridge for a laser printer of the present invention.
  • Figure 6 is a perspective view of the end cap of the toner cartridge for a laser printer of the present invention.
  • FIG. 4 a perspective view of a conventional toner cartridge for a laser printer and a toner cartridge for a laser printer of the present invention, and a perspective view of the end cap thereof, are shown in conjunction with Figs.
  • the toner cartridge for a laser printer of the present invention is substantially identical in structure to the conventional toner cartridge 100 for a laser printer shown in Figs. 1, 2, and the difference between the two is concentrated in the second end for closing the cartridge opening 106.
  • the second end cover which is a toner container closing member for a laser printer of the present invention is mainly described below.
  • the toner cartridge for a laser printer according to the present invention is basically the same as the main structure of the conventional toner cartridge 100 for a laser printer shown in Figs. 1 and 2, and the same portions of the same structure are denoted by the same reference numerals.
  • the second end cap of the toner cartridge for a laser printer of the present invention is labeled and described using different reference numerals.
  • the main structure of the toner cartridge for a laser printer of the present invention is as shown in Figs.
  • the main structure of the toner cartridge 100 for a laser printer, the second end cap 201 used in combination with the toner cartridge 100 for a laser printer of the present invention has the following configuration.
  • the inner wall 203 of the clip groove 202 and the end of the outer wall 204 are at the inner wall in the longitudinal direction of the cartridge body 101.
  • the end of 203 is higher than the end of outer wall 204.
  • the seal ring 205 is along the radially inner ring 207 of the cartridge body 101 of the toner hopper having a radial dimension equal to or slightly smaller than the radial dimension of the outer surface 208 of the inner wall 203 of the nip groove in the same direction.
  • the width L of the seal ring 205 in the radial direction of the cartridge body 101 of the toner hopper is slightly larger than the width of the grooving groove 202 in the same direction.
  • FIG. 6 shows a state in which the seal ring 205 is conveniently placed over the inner wall 203 of the second end cover 201.
  • the sealing ring 205 sleeved on the inner wall 203 of the clip slot will be pushed into the bottom of the clip slot 202 by the wall 108 of the portion where the opening 106 is located, the wall 108 It is also pressed into the clip slot 202 at the same time.
  • the toner cartridge for a laser printer of the present invention sets the height of the end of the inner wall of the clamping groove to be higher than the end of the outer wall of the clamping groove, so that when the sealing ring is assembled, The inner ring of the sealing ring can be directly placed on the inner wall of the clamping groove, and the sealing ring can be pushed into the clamping groove through the open end of the toner cartridge. In this way, not only the phenomenon that the original sealing ring is twisted but also causes the toner cartridge to leak powder is avoided, and the auxiliary tools required for the original sealing ring assembly process are also eliminated, thereby effectively reducing the assembly difficulty of the sealing ring.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)

Description

激光打印机用碳粉盒 技术领域
本发明是激光打印机用碳粉盒，特别是用于容储碳粉并将碳粉供应至激光打印机的碳粉盒，它包括密封门和碳粉仓，碳粉仓提供碳粉的容储空间，碳粉仓和激光打印机之间通过设置于碳粉仓上的密封门实现连通或者隔断，以完成碳粉自碳粉仓向激光打印机的转移过程。本发明基于申请日为2010年06月14日、申请号为201020226099.4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
影像形成装置通常包括复印机、激光打印机、传真机、色带打印机以及 LED 打印机等多种机型。
在激光扫描或激光照排形式的影像形成装置中，碳粉是实现图～～光～～电～～图转换的最终成像介质。通常，由显影辊转运的碳粉来自碳粉仓，碳粉仓的储粉量受仓体额定容积的限制，因此，碳粉仓中的碳粉用尽后须要予以补充，或者对盛载碳粉的碳粉盒整体进行回收，才能再次发挥碳粉盒其它部件例如显影辊、送粉辊、出粉刀、送粉架、碳粉仓和载体仓等的未尽功效。
作为激光影像形成装置的一类，激光打印机的主要功能块包括：激光扫描单元、光电转换单元、充电单元、显影单元、转印单元和定影单元。
激光扫描单元的主要构件是激光发生器和由棱镜、透镜等光学元件构成的光线反射透射系统。
光电转换单元的主要构件是感光鼓。
充电单元主要包括正电荷栅控式电晕充电辊或其它形式的充电辊。
显影单元由用于储存碳粉的储粉室、用于储存磁性载体的载体仓、显影室和显影辊构成。显影辊、送粉辊、出粉刀就设置于显影室内。送粉架和碳粉仓共同构成储粉室。
转印单元主要包括转印辊。
定影单元由加热辊和加压辊构成。
常见的碳粉盒或处理盒通常包括光电转换单元、充电单元、显影单元等几个承担光～～电～～图转换功能的功能块，此种构造方式一般得到多功能集成型的碳粉盒或处理盒。也有采用区分不同功能进行不同布局的方式，将光电转换单元、充电单元直接设置于激光打印机主机上，而碳粉盒则仅包括显影单元，或者仅包括用于完成碳粉容储功能的碳粉仓，此种构造方式仅能得到仅可实施单一显影功能或碳粉容储功能的碳粉盒，此类单一功能碳粉盒与激光打印机主机之间则以总成装配的形式完成两者之间的匹配。
在碳粉盒装入激光打印机的使用状态下，感光鼓表面由充电辊均匀地充电。激光扫描器向感光鼓发射含有图像信息并且经过调制的激光束，经激光照射后在感光鼓表面形成分布不同的静电压图，亦即与待复制图像对应的静电潜像。之后，来自显影辊的碳粉转而吸附在感光鼓表面上，覆盖静电潜像后把其转换成可以肉眼观察的可视图像。随着感光鼓的旋转，由碳粉在感光鼓表面形成的可视图像换位至转印辊所在的位置。经转印辊转印电压的作用，将可视图像形式的碳粉转印至纸张等记录介质表面上，随后经加热辊和加压辊对记录介质上的可视图像进行加热加压后，将碳粉形成的可视图像永久地固化于记录介质上。这样就完成了一个基本的成像工作流程，该流程反复循环运转的结果，就可以得到所需的图像。
正如上文所描述的，对于多功能集成型的碳粉盒，或着是单一功能类型的碳粉盒，其碳粉是形成图像的唯一物质载体，它被容纳并储存于碳粉仓中。如图1～3，示出了一种现有碳粉盒100及其部件的结构。该碳粉盒100仅用于容纳、储存和供应碳粉。它包括外形呈筒状的仓体101。仓体101的筒壁上设置有出粉口102，仓体101带有开口106的一端由第二端盖104密封，仓体101的另一端由底壁密封。在仓体101中空的内腔中，设置有密封门105。密封门105的轴端之一以可旋转的方式支承于第二端盖104上，另一端穿过仓体101的底壁后固定地支承于第一端盖103上。当第一端盖103相对仓体101转动时，固定在第一端盖103上的密封门105也随着相对仓体101转动，进而开启或关闭出粉口102。在碳粉盒100装入激光打印机的状态下，密封门105的前述转动操作构成控制碳粉盒100同激光打印机之间形成连通或隔断状态的必要步骤。
仓体101同第二端盖104之间的结合方式，是在第二端盖104对应于用来构成开口106的仓壁108的部位，设置夹槽107，通过仓壁108插入夹槽107中的形式，实现仓体101同第二端盖104之间的结合以及第二端盖104对开口106的封闭。当然，为了保持第二端盖104同仓体101之间到达结合牢固的程度，在第二端盖104和仓体101上相互对应的位置分别设置了锁栓109和锁孔110，通过锁栓109和锁孔110之间的相互咬合来锁定第二端盖104和仓体101。此外，为了能够向碳粉盒100中加注碳粉，相应地在第二端盖104上开设了加粉口111。加粉口111通常由盖子112封闭。
使用第二端盖104封闭开口106时，为防止碳粉从仓体101内腔向外泄漏，在夹槽107中还需衬垫海绵制备的密封圈113，密封圈113在仓体101长度方向横截面上的宽度大于夹槽107的同向宽度。这样，在仓壁108插入夹槽107后，密封圈113被压缩并同夹槽107的槽壁和仓壁108的插入前端形成紧密接触，使得外部空气不能进入仓体101内腔中以影响碳粉的湿度，也同时阻止碳粉自仓体101内腔向外泄漏。
 技术问题
然而，由于夹槽107的形状必须适应于仓壁108的形状，因此夹槽107的形状具有不规则的特点，并且构成夹槽107的两个槽壁在仓体101长度方向上存在位置差异，亦即，夹槽107由沿仓体101径向的内壁114和外壁115形成，以第二端盖104的底壁116为基准，它们用来围成夹槽107的末端在仓体101长度方向上的高度处于内壁114低于外壁115的状态。结果，在装配密封圈113时，由于其海绵材质的柔软性和夹槽107形状的不规则，致使密封圈113总是被内壁114和外壁115用来围成夹槽107的末端顶住，导致密封圈113出现扭转的现象，形成密封不良、碳粉漏出等现象。另一方面，为防止密封圈113出现扭转现象，常需使用辅助器具来把密封圈113压入夹槽107内，费力费时。
技术解决方案
针对上述碳粉盒因密封圈装配不良引起的漏粉问题，本发明目的在于提供一种密封优良的激光打印机用碳粉盒。
为实现上述发明目的，本发明提供的激光打印机用碳粉盒包括密封门和碳粉仓，碳粉仓的仓壁上设置有出粉口，碳粉仓带有开口的一端由第二端盖以夹槽对插的方式密封，在夹槽内设置有密封圈。密封门设置于碳粉仓的中空内腔中，用于控制出粉口的开启和/或关闭。密封门的轴端之一以可旋转的方式支承于第二端盖上，其轴端之二穿过碳粉仓的底壁后固定地支承于第一端盖上。以第二端盖的底壁为基准，夹槽沿碳粉仓径向的内壁和外壁的末端，两者在碳粉仓长度方向上的高度处于内壁末端高于外壁末端的状态。
前述激光打印机用碳粉盒，其密封圈沿碳粉仓径向的内圈的径向尺寸等于或略小于夹槽内壁沿碳粉仓径向的外表面的径向尺寸。
前述激光打印机用碳粉盒，其密封圈沿碳粉仓径向的宽度略大于夹槽沿碳粉仓径向的宽度。
 有益效果
本发明激光打印机用碳粉盒，针对碳粉盒原有端盖存在的夹槽缺陷，将夹槽内壁末端的高度设置成高于夹槽外壁末端的形式，如此，在装配密封圈时，就可以将密封圈的内圈直接套置于夹槽的内壁上，进而通过碳粉仓带有开口的一端把密封圈推入夹槽内。这样，不仅避免了原有密封圈被扭转进而导致碳粉仓漏粉的现象，同时还省却了原有密封圈装配工艺所需的辅助器具，有效地降低了密封圈的装配难度。
 附图说明
图1现有激光打印机用碳粉盒透视图；
图2现有激光打印机用碳粉盒分解透视图；
图3现有激光打印机用碳粉盒之端盖透视图；
图4本发明激光打印机用碳粉盒之端盖分解透视图；
图5本发明激光打印机用碳粉盒之端盖透视图一；
图6本发明激光打印机用碳粉盒之端盖透视图二。
 本发明的实施方式
下面结合附图详细描述本发明激光打印机用碳粉盒。
参见图4、5、6，结合图1、2分别示出现有激光打印机用碳粉盒和本发明激光打印机用碳粉盒透视图以及其端盖透视图。
本发明激光打印机用碳粉盒与图1、2示出的现有激光打印机用碳粉盒100在主要结构上基本相同，两者的差别集中体现在用来封闭仓体开口106的第二端盖104上，下文着重介绍作为本发明激光打印机用碳粉盒封闭构件的第二端盖。基于本发明激光打印机用碳粉盒与图1、2所示现有激光打印机用碳粉盒100在主要结构上基本相同的原因，两者相同部分的结构使用相同的附图标记予以引用描述，而对本发明激光打印机用碳粉盒之第二端盖则使用不同的附图标记予以标注、描述。
见图4、5、6，以图1、2所示现有激光打印机用碳粉盒100的主要结构为基础，本发明激光打印机用碳粉盒的主体结构沿用图1、2所示现有激光打印机用碳粉盒100的主要结构，与本发明激光打印机用碳粉盒100匹配使用的第二端盖201具有如下的构造形式。
以第二端盖201的底壁206为基准，沿着碳粉仓之仓体101的直径方向，夹槽202的内壁203和外壁204的末端，它们在仓体101长度方向上的高度处于内壁203的末端高于外壁204的末端的状态。
密封圈205沿碳粉仓之仓体101径向的内圈207，其径向尺寸等于或略小于夹槽内壁203沿相同方向的外表面208的径向尺寸。
密封圈205沿碳粉仓之仓体101径向的宽度L略大于夹槽202沿相同方向的宽度。
图6示出密封圈205被方便地套置于第二端盖201之夹槽内壁203上的状态。在把第二端盖201装配于碳粉盒100上时，套置于夹槽内壁203上的密封圈205将被开口106所在部位的仓壁108挤入至夹槽202的底部，仓壁108也同时压入到夹槽202内。
 工业实用性
本发明激光打印机用碳粉盒，针对碳粉盒原有端盖存在的夹槽缺陷，将夹槽内壁末端的高度设置成高于夹槽外壁末端的形式，如此，在装配密封圈时，就可以将密封圈的内圈直接套置于夹槽的内壁上，进而通过碳粉仓带有开口的一端把密封圈推入夹槽内。这样，不仅避免了原有密封圈被扭转进而导致碳粉仓漏粉的现象，同时还省却了原有密封圈装配工艺所需的辅助器具，有效地降低了密封圈的装配难度。

Claims (3)

  1. 激光打印机用碳粉盒，包括
    密封门和碳粉仓，所述碳粉仓的仓壁上设置有出粉口，所述碳粉仓带有开口的一端由第二端盖以夹槽对插的方式密封，在所述夹槽内设置有密封圈，所述密封门设置于所述碳粉仓的中空内腔中，用于控制所述出粉口的开启和/或关闭，所述密封门的轴端之一以可旋转的方式支承于所述第二端盖上，所述密封门的轴端之二穿过所述碳粉仓的底壁后固定地支承于第一端盖上；
    其特征在于：
    以所述第二端盖的底壁为基准，所述夹槽沿所述碳粉仓径向的内壁和外壁的末端在所述碳粉仓长度方向上的高度处于所述内壁高于所述外壁的状态。
  2. 如权利要求1所述激光打印机用碳粉盒，其特征在于：
    所述密封圈沿所述碳粉仓径向的内圈的径向尺寸等于或略小于所述内壁沿所述碳粉仓径向的外表面的径向尺寸。
  3. 如权利要求1或2所述激光打印机用碳粉盒，其特征在于：
    所述密封圈沿所述碳粉仓径向的宽度略大于所述夹槽沿所述碳粉仓径向的宽度。
PCT/CN2011/075070 2010-06-14 2011-06-01 激光打印机用碳粉盒 WO2011157154A1 (zh)

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CN106773571A (zh) * 2016-12-31 2017-05-31 珠海格美达科技有限公司 一种碳粉盒

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