WO2012031557A1 - Toner cartridge of laser printer - Google Patents

Toner cartridge of laser printer Download PDF

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Publication number
WO2012031557A1
WO2012031557A1 PCT/CN2011/079453 CN2011079453W WO2012031557A1 WO 2012031557 A1 WO2012031557 A1 WO 2012031557A1 CN 2011079453 W CN2011079453 W CN 2011079453W WO 2012031557 A1 WO2012031557 A1 WO 2012031557A1
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WO
WIPO (PCT)
Prior art keywords
toner cartridge
toner
laser printer
frame
plate
Prior art date
Application number
PCT/CN2011/079453
Other languages
French (fr)
Chinese (zh)
Inventor
林龙
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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Publication of WO2012031557A1 publication Critical patent/WO2012031557A1/en

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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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0808—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer supplying means, e.g. structure of developer supply roller
    • 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
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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
    • 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
    • G03G15/0875—Arrangements for supplying new developer cartridges having a box like shape
    • 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

Definitions

  • the present invention relates to a toner cartridge for a laser printer, and more particularly to a toner cartridge including a developing roller, a powder feeding roller, a powder discharging knife, a stirring frame and a toner hopper, which feeds the toner contained in the toner hopper through the developing roller.
  • the layout is applied to the electrostatic latent image area formed on the surface of the photosensitive drum to convert the electrostatic latent image into a visual image displayed by a developer such as toner.
  • the present invention is based on a Chinese utility model patent application filed on Sep. 10, 2010, with the application number of 201020524142.5, the content of which is incorporated herein by reference.
  • the image forming apparatus usually includes a copying machine, a laser printer, a facsimile machine, a ribbon printer, and an LED printer.
  • the toner is the final imaging medium for realizing the conversion of the image ⁇ ⁇ light ⁇ ⁇ electricity ⁇ ⁇ map.
  • the developing roller is disposed near the photosensitive drum to form an image on the photosensitive drum after the toner jumps over a very small gap between the developing roller and the photosensitive drum.
  • the toner transported by the developing roller comes from the toner hopper.
  • the amount of toner stored in the toner hopper is limited by the volume of the hopper. Therefore, the toner in the toner hopper needs to be replenished after it is used up.
  • 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 the laser generator and the light reflection transmission system.
  • 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 toner storage chamber for storing toner, 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 mixing frame 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, and a developing unit. This configuration generally results in a multi-functional integrated toner cartridge or process cartridge. There is also a photoelectric conversion unit and a charging unit which are directly disposed on the laser printer main body, and the toner cartridge includes only the developing unit, and this configuration method can obtain a toner cartridge which can perform only a single developing function, such a single function toner cartridge. The match between the two is done in the form of an assembly with the laser printer mainframe.
  • the surface of the photosensitive drum is uniformly charged by the charging roller.
  • the laser scanner emits a modulated laser light containing image information to the photosensitive drum to form an electrostatic latent image corresponding to the image to be reproduced on the surface of the photosensitive drum.
  • the toner from the developing roller is adsorbed on the surface of the photosensitive drum to convert the electrostatic latent image into a visible image displayed by the toner.
  • the photosensitive drum rotates, the visible image formed by the toner on the surface of the photosensitive drum is displaced to the position where the transfer roller is located.
  • toner in the form of visible image to a recording medium such as paper by the transfer voltage of the transfer roller, and then heating and pressing the visible image on the recording medium by the heating roller and the pressure roller, The visible image formed by the toner is completely cured on the recording medium. This completes a basic imaging operation. After the operation is repeated, the complete picture, text and image required by the user can be obtained.
  • toner is always a consumable substance as an imaging medium. Therefore, as the imaging process continues to be repeated, the amount of powder stored in the toner hopper will gradually become exhausted, and it is necessary to monitor the amount of powder stored in the toner hopper to prevent powder-free use.
  • FIG. 1 to 5 there is shown a toner cartridge of a conventional laser printer.
  • the encoder disc 101 and the two reflecting sheets 102, 103 are double-sided. After the adhesive bonding is assembled, it is fixed to the end of the agitator 104 in which the shaft extends beyond the aforementioned side of the toner cartridge 100.
  • the other end of the shaft among the agitating frames 104 is coupled to the gear 107 via a coupling 106.
  • the coupling 106 is axially coupled to the agitator 104 at its center in the radial direction, and the coaxial outer periphery of the coupling 106 is coupled to the gear 107.
  • the laser printer drives the gear 107 to drive the coupling 106 to drive the agitator 104 and the code disc 101 to rotate.
  • the coupling 106 fixedly coupled to the agitating frame 104 sensitively senses the resistance or torque transmitted from the toner of the toner cartridge 100 during the rotation of the agitating frame 104, and the agitator 104 transmits the resistance or torque generated by the toner.
  • the code disk 101 is given.
  • the code disc 101 cooperates with the code readers disposed in the laser printer through the two retroreflective sheets 102, 103 disposed thereon to complete the detection of the amount of toner of the toner cartridge 100.
  • the mixing rack 104 feels a large area of the toner resistance, so that the mixing rack 104 feels that the change of the toner reserve cannot be the same as the change of the toner reserve. Matching, therefore, changes in toner reserves are difficult to detect in time for laser printers.
  • a primary object of the present invention is to provide a toner cartridge for a laser printer capable of promptly reading the resistance or torque generated by the toner content of the toner cartridge.
  • the toner cartridge sensitively reflects the toner reserves in the toner hopper.
  • the present invention utilizes a toner cartridge for a laser printer having the following features. It includes a developing roller, a powder feeding roller, a powder discharging knife, a mixing rack, and a toner hopper.
  • the agitator is rotatably supported in the toner hopper in such a manner that its axial direction is parallel to the axial direction of the developing roller.
  • the axial ends of the agitator protrude from the toner cartridge and are fixedly connected to the drive gear and the encoder disc, respectively.
  • the portion of the mixing rack located in the toner hopper includes a stirring section and a sensing section. The stirring section and the sensing section are connected by a rotary hysteresis mechanism.
  • the rotary lag mechanism includes a coupling plate and a retarding plate.
  • the first plate and the limiting block are disposed on the first side of the coupling plate along the axial direction of the mixing frame. Both the first block and the stop block are offset from the central axis of the agitator.
  • the second plate and the limiting cavity are disposed on the first side of the agitating plate along the axial direction of the mixing frame. Both the second block and the limiting cavity are offset from the central axis of the mixing frame.
  • the first side surface of the coupling plate and the first side surface of the delay plate are disposed to face each other.
  • One end of the torsion spring is fixed to the first block, and the other end is fixed to the second block.
  • the free end of the limiting block projects into the limiting cavity.
  • the central axis of the torsion spring is fixed to the shaft of the agitator frame so as to overlap the central axis of the agitator.
  • a plurality of stopper blocks are respectively disposed on the two walls of the limiting cavity in the circumferential direction.
  • the connecting plate is fixedly connected to the second side of the first side of the connecting shaft along the axial direction of the stirring frame and the middle shaft of the stirring section, and the retarding plate is back-to-back along the axial direction of the stirring frame.
  • the second side of the first side of the moving plate is fixedly coupled to the central axis of the sensing section.
  • the connecting plate is fixedly connected with the second side of the first side of the connecting shaft along the axial direction of the stirring frame and the middle shaft of the sensing section, and the retarding plate is back-to-back along the axial direction of the stirring frame.
  • the second side of the first side of the movable plate is fixedly coupled to the central axis of the agitating section.
  • the rotation hysteresis mechanism is biased toward the side where the drive gear is located along the axial direction of the agitator.
  • the position of the rotary lag mechanism in the axial direction of the agitating frame is biased toward the side where the encoder disk is located.
  • the agitator is divided into two parts, a stirring section and a sensing section, and the two parts are connected by a rotation hysteresis mechanism.
  • the agitating section of the agitator continues to undertake the task of agitating, conveying toner and transmitting rotational torque.
  • the sensing section of the agitator takes up agitation, conveys toner, senses the inertial resistance of the toner, and transmits the rotational torque. task.
  • the difference in the inertial resistance of the perceived toner occurs in the detection sequence due to the intervention of the rotational lag mechanism between the agitating section and the sensing section.
  • This difference is transmitted to the code disk via the agitator and then learned by the laser printer, thereby achieving the task of sensitively detecting the toner content in the toner hopper.
  • the hysteresis rotation effect generated by the rotation hysteresis mechanism can reduce the initial driving force, which has a better buffering effect on the agitation of the carbon powder which is integrally compacted due to long-term storage and transportation.
  • the agitator can be in full contact with the toner, thereby improving the charging ability of the toner.
  • Figure 1 is a perspective view of a conventional toner cartridge for a laser printer
  • Figure 2 is a perspective view of a conventional toner cartridge for a laser printer
  • Figure 3 is a perspective view of a conventional mixing frame for a toner cartridge for a laser printer
  • Figure 4 is a perspective view of the mixing frame of the existing toner cartridge for a laser printer
  • Figure 5 is an exploded perspective view of a conventional mixing frame for a toner cartridge for a laser printer
  • Figure 6 is a partial cross-sectional view showing a toner cartridge for a laser printer of the present invention.
  • Figure 7 is a perspective view of a mixing frame of a toner cartridge for a laser printer of the present invention.
  • Figure 8 is a partial perspective view of the mixing frame of the toner cartridge for a laser printer of the present invention.
  • Figure 9 is a partial perspective view of the mixing frame of the toner cartridge for a laser printer of the present invention.
  • the toner cartridge for a laser printer of the present invention is basically the same as the main structure of the conventional laser printer toner cartridge shown in Figs. 1 to 5, and the main difference is that there is a difference in the structure of the stirring frame between the two.
  • the structure of the stirring frame of the toner cartridge for a laser printer of the present invention will be mainly described.
  • Other parts similar to those of the existing laser printer toner cartridge can be referred to the existing laser printer toner cartridge and the text description thereof shown in FIGS.
  • the markings of the components of Figures 6-9 are still marked with the corresponding components of the conventional laser printer toner cartridge shown in Figures 1-5.
  • the main improvement of the toner cartridge 100 for a laser printer of the present invention is as follows.
  • the axial ends of the agitating frame 104 are fixedly coupled to the drive gear 107 and the encoder disk 101, respectively, after projecting to the outside of the toner hopper 108.
  • the portion of the agitator 104 located within the toner hopper 108 is designed as a portion of the agitating section 109 and the sensing section 110.
  • the agitating section 109 and the sensing section 110 are connected by a rotation hysteresis mechanism 111.
  • the agitator 104 is fixedly coupled to the drive gear 107 corresponding to the axial end of the agitating section 109.
  • the agitator 104 is fixedly coupled to the code disc 101 corresponding to the axial end of the sensing section 110.
  • the torque transfer task between the agitating section 109 and the sensing section 110 is undertaken by the rotational hysteresis mechanism 111.
  • the position of the rotary hysteresis mechanism 111 is placed in the middle of the agitator 104, i.e., the agitating section 109 and the sensing section 110 remain substantially the same along the length of the axial direction X.
  • the composition of the rotary hysteresis mechanism 111 includes a coupling plate 112 and a retarding plate 113.
  • a first block 115 and a stop block 116 are disposed in the axial direction X of the agitator 104, on the first side 114 of the coupling plate 112 along the X-axis.
  • the positions of the first block 115 and the stop block 116 are both offset from the central axis of the agitator 104, which are located on different circumferences that are a predetermined distance from the central axis of the agitator 104.
  • a second block 118 and a limiting cavity 119 are provided in the axial direction X of the agitator 104, on the first side 117 of the retardation plate 113 along the X-axis.
  • the positions of the second block 118 and the limiting cavity 119 are simultaneously offset from the central axis of the agitator 104, which are located on different circumferences that are a predetermined distance from the central axis of the agitator 104.
  • the first side surface 114 of the coupling plate 112 and the first side surface 117 of the retardation plate 113 are kept in a state of being opposed to each other.
  • One of the spring legs of the torsion spring 120 is fixedly fastened to the first block 115, and the second leg of the torsion leg is fixedly pressed against the second block 118.
  • the free end of the stop block 116 extends into the limiting cavity 119.
  • the torsion spring 120 is fixed to the central shaft of the agitator 104 in such a manner that its axis coincides with the central axis of the agitator 104.
  • a plurality of stopper blocks 121 and 122 are respectively disposed on the two walls of the limiting cavity 119 in the circumferential direction.
  • the second side 123 of the coupling plate 112 facing away from the first side surface 114 along the X-axis is fixedly coupled to the central axis of the agitating section 109.
  • the second side 124 of the retarding plate 113 facing away from the first side 117 along the X-axis is fixedly coupled to the central axis of the sensing section 110.
  • the driving gear 107 drives the agitating section 109 to rotate, and after the agitating section 109 rotates by a predetermined angle, the limiting block 116 provided in the rotary hysteresis mechanism 111 driven by it moves and reaches in the limiting cavity 119.
  • the position of the stop block 122 is further in a state of being pressed against the stopper block 122, and the rotational torque is transmitted to the sensing section 110, thereby finally realizing the entire agitator 104 composed of the agitating section 109 and the sensing section 110. Rotate.
  • the difference in the rotation time sequence between the agitation section 109 and the sensing section 110 is fed back to the laser printer via the encoder disc 101, so that the toner stored in the toner cartridge 108 can be detected. .
  • the position of the rotation hysteresis mechanism 111 in the axial direction X of the agitating frame 104 may be reversed by one hundred and eighty degrees; or the rotational hysteresis mechanism 111 may be in the axial direction X of the agitating frame 104.
  • the position is offset from the middle of the agitator 104, i.e., the position of the rotary hysteresis mechanism 111 is biased toward the side on which the drive gear 107 is located, or is biased toward the side on which the encoder disc 101 is located.
  • the mixing frame is divided into two parts, a stirring section and a sensing section, and the two parts are connected by a rotation hysteresis mechanism.
  • the task of agitating, conveying toner, and transmitting rotational torque continues to be carried out by the agitating section, and the sensing section assumes the task of agitating, conveying toner, sensing the inertial resistance of the toner, and transmitting the rotational torque.
  • the difference in the inertial resistance of the perceived toner occurs in the detection sequence due to the intervention of the rotational lag mechanism between the agitating section and the sensing section.
  • the hysteresis rotation effect generated by the rotary hysteresis mechanism can reduce the initial driving force, which has a good buffering effect on the agitation of the carbon powder which is integrally compacted due to long-term storage and transportation.
  • the agitator can be in full contact with the toner, thereby improving the charging ability of the toner.

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

Abstract

A toner cartridge (100) of a laser printer. A part, in a toner cabin (108), of a stirring rack (104) thereof includes a stirring section (109) and a sensing section (110). The stirring section (109) and the sensing section (110) are connected to each other by a rotation lagging mechanism (111) there-between including a shaft coupling plate (112) and a motion delayed plate (113). A first side surface (114) of the shaft coupling plate (112) along the axial direction of the stirring rack (104) is provided with a first stopping block (115) and a limiting block (116). The first stopping block (115) and the limiting block (116) both deviate from the central axis of the stirring rack (104). A first side surface (117) of the motion delayed plate (113) along the axial direction of the stirring rack (104) is provided with a second stopping block (118) and a limiting cavity (119). The second stopping block (118) and the limiting cavity (119) both deviate from the central axis of the stirring rack (104). The first side surface (114) of the shaft coupling plate and the first side surface (117) of the motion delayed plate maintain a state of being opposite to each other face to face. A torsion spring (120) has one end fixed on the first stopping block (115) and the other end fixed on the second stopping block (118). A free end of the limiting block (116) extends into the limiting cavity (119).

Description

激光打印机用碳粉盒  Toner cartridge for laser printer 技术领域Technical field
本发明涉及激光打印机用碳粉盒，特别是包括显影辊、送粉辊、出粉刀、搅拌架和碳粉仓的碳粉盒，它通过显影辊把碳粉仓中容纳的碳粉按照预设布局敷设于在感光鼓表面形成的静电潜像区域，使静电潜像转换成由碳粉之类显影剂所显示的可视化图像。本发明基于申请日为2010年09月10日、申请号为201020524142.5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。 The present invention relates to a toner cartridge for a laser printer, and more particularly to a toner cartridge including a developing roller, a powder feeding roller, a powder discharging knife, a stirring frame and a toner hopper, which feeds the toner contained in the toner hopper through the developing roller. The layout is applied to the electrostatic latent image area formed on the surface of the photosensitive drum to convert the electrostatic latent image into a visual image displayed by a developer such as toner. The present invention is based on a Chinese utility model patent application filed on Sep. 10, 2010, with the application number of 201020524142.5, the content of which is incorporated herein by reference.
背景技术Background technique
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。The image forming apparatus usually includes a copying machine, a laser printer, a facsimile machine, a ribbon printer, and an LED printer.
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，显影辊就设置于感光鼓附近，以便于碳粉跃过显影辊和感光鼓之间的极小间隙后在感光鼓上形成影像。由显影辊转运的碳粉来自碳粉仓。碳粉仓的储粉量受仓体容积限制，因此，碳粉仓中的碳粉用尽后需要予以补充。In the image forming apparatus of the laser scanning or laser irradiation type, the toner is the final imaging medium for realizing the conversion of the image ~ ~ light ~ ~ electricity ~ ~ map. Usually, the developing roller is disposed near the photosensitive drum to form an image on the photosensitive drum after the toner jumps over a very small gap between the developing roller and the photosensitive drum. The toner transported by the developing roller comes from the toner hopper. The amount of toner stored in the toner hopper is limited by the volume of the hopper. Therefore, the toner in the toner hopper needs to be replenished after it is used up.
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。As a type of laser image forming apparatus, 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.
激光扫描单元的主要构件是激光发生器和光线反射透射***。The main components of the laser scanning unit are the laser generator and the light reflection transmission system.
光电转换单元的主要构件是感光鼓。The main component of the photoelectric conversion unit is a photosensitive drum.
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。The charging unit mainly includes a positive charge grid-controlled corona charging roller or other forms of charging roller.
显影单元由用于储存碳粉的储粉室、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。搅拌架和碳粉仓共同构成储粉室。The developing unit is composed of a toner storage chamber for storing toner, 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 mixing frame and the toner hopper together form a powder storage chamber.
转印单元主要包括转印辊。The transfer unit mainly includes a transfer roller.
定影单元由加热辊和加压辊构成。The fixing unit is composed of a heat roller and a pressure roller.
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，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，此种构造方式能得到仅可实施单一显影功能的碳粉盒，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。A common toner cartridge or process cartridge usually includes a photoelectric conversion unit, a charging unit, and a developing unit. This configuration generally results in a multi-functional integrated toner cartridge or process cartridge. There is also a photoelectric conversion unit and a charging unit which are directly disposed on the laser printer main body, and the toner cartridge includes only the developing unit, and this configuration method can obtain a toner cartridge which can perform only a single developing function, such a single function toner cartridge. The match between the two is done in the form of an assembly with the laser printer mainframe.
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的经过调制的激光，在感光鼓表面形成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，把静电潜像转换成由碳粉显示的可视图像。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完全固化于记录介质上。这样完成一个基本的成像操作。该操作反复运转后即可得到用户所需的完整图、文、像。In the state in which the toner cartridge is loaded into the laser printer, the surface of the photosensitive drum is uniformly charged by the charging roller. The laser scanner emits a modulated laser light containing image information to the photosensitive drum to form an electrostatic latent image corresponding to the image to be reproduced on the surface of the photosensitive drum. Thereafter, the toner from the developing roller is adsorbed on the surface of the photosensitive drum to convert the electrostatic latent image into a visible image displayed by the toner. As the photosensitive drum rotates, the visible image formed by the toner on the surface of the photosensitive drum is displaced to the position where the transfer roller is located. Transferring toner in the form of visible image to a recording medium such as paper by the transfer voltage of the transfer roller, and then heating and pressing the visible image on the recording medium by the heating roller and the pressure roller, The visible image formed by the toner is completely cured on the recording medium. This completes a basic imaging operation. After the operation is repeated, the complete picture, text and image required by the user can be obtained.
技术问题technical problem
无论是多功能集成型的碳粉盒，抑或是单一功能类型的碳粉盒，如前所述，碳粉作为成像介质始终是一种消耗性的物质。因此，随着成像过程的不断反复进行，碳粉仓中的储粉量将逐渐趋于罄尽，监控碳粉仓中的储粉量以防无粉可用由此成为必要。Whether it is a multi-functional integrated toner cartridge or a single-function type toner cartridge, as mentioned above, toner is always a consumable substance as an imaging medium. Therefore, as the imaging process continues to be repeated, the amount of powder stored in the toner hopper will gradually become exhausted, and it is necessary to monitor the amount of powder stored in the toner hopper to prevent powder-free use.
参见图1～5，图中示出一种现有激光打印机的碳粉盒，在碳粉盒100沿显影辊105轴向的一个侧面，编码盘101同两块反光片102、103由双面胶粘接组配后，固定于搅拌架104之中轴延伸到碳粉盒100前述侧面之外的端部。在碳粉盒100沿显影辊105轴向的另一侧，搅拌架104之中轴的另一端通过联轴器106同齿轮107连接。具体为联轴器106在其径向的中心同搅拌架104之中轴连接，联轴器106径向外周与齿轮107连接。在碳粉盒100装入激光打印机主机内部之后，激光打印机驱使齿轮107驱动联轴器106带动搅拌架104和编码盘101旋转。同搅拌架104固定连接的联轴器106在搅拌架104旋转过程中及时灵敏地感应到由碳粉盒100内容碳粉传来的阻力或扭矩，搅拌架104把碳粉产生的阻力或扭矩传递给编码盘101。编码盘101通过其上设置的两块反光片102、103同布设于激光打印机内的读码器相互配合，完成对碳粉盒100内容碳粉量的检测。这种构造方式，由于使用整根搅拌架104担负探测碳粉阻力的任务，搅拌架104感受碳粉阻力的面积较大，致使搅拌架104感受碳粉储量变化的速度不能同碳粉储量的变化相匹配，因此，碳粉储量的变化难于及时为激光打印机所探知。Referring to Figures 1 to 5, there is shown a toner cartridge of a conventional laser printer. On one side of the toner cartridge 100 along the axial direction of the developing roller 105, the encoder disc 101 and the two reflecting sheets 102, 103 are double-sided. After the adhesive bonding is assembled, it is fixed to the end of the agitator 104 in which the shaft extends beyond the aforementioned side of the toner cartridge 100. On the other side of the toner cartridge 100 along the axial direction of the developing roller 105, the other end of the shaft among the agitating frames 104 is coupled to the gear 107 via a coupling 106. Specifically, the coupling 106 is axially coupled to the agitator 104 at its center in the radial direction, and the coaxial outer periphery of the coupling 106 is coupled to the gear 107. After the toner cartridge 100 is loaded into the interior of the laser printer main body, the laser printer drives the gear 107 to drive the coupling 106 to drive the agitator 104 and the code disc 101 to rotate. The coupling 106 fixedly coupled to the agitating frame 104 sensitively senses the resistance or torque transmitted from the toner of the toner cartridge 100 during the rotation of the agitating frame 104, and the agitator 104 transmits the resistance or torque generated by the toner. The code disk 101 is given. The code disc 101 cooperates with the code readers disposed in the laser printer through the two retroreflective sheets 102, 103 disposed thereon to complete the detection of the amount of toner of the toner cartridge 100. In this configuration, since the entire mixing rack 104 is used to carry out the task of detecting the resistance of the toner, the mixing rack 104 feels a large area of the toner resistance, so that the mixing rack 104 feels that the change of the toner reserve cannot be the same as the change of the toner reserve. Matching, therefore, changes in toner reserves are difficult to detect in time for laser printers.
技术解决方案Technical solution
本发明的主要目的在于提供一种能够及时检读其碳粉仓内容碳粉所生阻力或扭矩的激光打印机用碳粉盒。该碳粉盒可灵敏地反映碳粉仓内的碳粉储量。SUMMARY OF THE INVENTION A primary object of the present invention is to provide a toner cartridge for a laser printer capable of promptly reading the resistance or torque generated by the toner content of the toner cartridge. The toner cartridge sensitively reflects the toner reserves in the toner hopper.
为实现上述目的，本发明利用具有以下特点的激光打印机用碳粉盒。它包括显影辊、送粉辊、出粉刀、搅拌架和碳粉仓。搅拌架以其轴向平行于显影辊轴向的方式可转动地支承于碳粉仓内。搅拌架的轴向两端伸出于碳粉仓之外并分别同驱动齿轮和编码盘固定连接。搅拌架位于碳粉仓内的部分包括搅拌段和感测段。搅拌段和感测段之间通过旋转滞后机构连接。旋转滞后机构包括连轴板和迟动板。连轴板沿搅拌架轴向的第一侧面上设置有第一卡块和限位块。第一卡块和限位块均偏离搅拌架中轴线。迟动板沿搅拌架轴向的第一侧面上设置有第二卡块和限位腔。第二卡块和限位腔均偏离搅拌架中轴线。连轴板第一侧面与迟动板第一侧面之间设置为面面相对的状态。扭簧的一端固定于第一卡块上，其另一端固定于第二卡块上。限位块的自由端伸入限位腔中。In order to achieve the above object, the present invention utilizes a toner cartridge for a laser printer having the following features. It includes a developing roller, a powder feeding roller, a powder discharging knife, a mixing rack, and a toner hopper. The agitator is rotatably supported in the toner hopper in such a manner that its axial direction is parallel to the axial direction of the developing roller. The axial ends of the agitator protrude from the toner cartridge and are fixedly connected to the drive gear and the encoder disc, respectively. The portion of the mixing rack located in the toner hopper includes a stirring section and a sensing section. The stirring section and the sensing section are connected by a rotary hysteresis mechanism. The rotary lag mechanism includes a coupling plate and a retarding plate. The first plate and the limiting block are disposed on the first side of the coupling plate along the axial direction of the mixing frame. Both the first block and the stop block are offset from the central axis of the agitator. The second plate and the limiting cavity are disposed on the first side of the agitating plate along the axial direction of the mixing frame. Both the second block and the limiting cavity are offset from the central axis of the mixing frame. The first side surface of the coupling plate and the first side surface of the delay plate are disposed to face each other. One end of the torsion spring is fixed to the first block, and the other end is fixed to the second block. The free end of the limiting block projects into the limiting cavity.
前述激光打印机用碳粉盒，其扭簧的中轴线以重合搅拌架中轴线的方式固定于搅拌架中轴上。在迟动板第一侧面，于限位腔沿圆周方向的两壁上分别各设置有一片止动块。In the foregoing toner cartridge for a laser printer, the central axis of the torsion spring is fixed to the shaft of the agitator frame so as to overlap the central axis of the agitator. On the first side of the retardation plate, a plurality of stopper blocks are respectively disposed on the two walls of the limiting cavity in the circumferential direction.
前述激光打印机用碳粉盒，其连轴板沿搅拌架轴向背对连轴板第一侧面的第二侧面同搅拌段的中轴固定连接，其迟动板沿搅拌架轴向背对迟动板第一侧面的第二侧面同感测段的中轴固定连接。In the foregoing toner cartridge for a laser printer, the connecting plate is fixedly connected to the second side of the first side of the connecting shaft along the axial direction of the stirring frame and the middle shaft of the stirring section, and the retarding plate is back-to-back along the axial direction of the stirring frame. The second side of the first side of the moving plate is fixedly coupled to the central axis of the sensing section.
前述激光打印机用碳粉盒，其连轴板沿搅拌架轴向背对连轴板第一侧面的第二侧面同感测段的中轴固定连接，其迟动板沿搅拌架轴向背对迟动板第一侧面的第二侧面同搅拌段的中轴固定连接。In the foregoing toner cartridge for a laser printer, the connecting plate is fixedly connected with the second side of the first side of the connecting shaft along the axial direction of the stirring frame and the middle shaft of the sensing section, and the retarding plate is back-to-back along the axial direction of the stirring frame. The second side of the first side of the movable plate is fixedly coupled to the central axis of the agitating section.
前述激光打印机用碳粉盒，其旋转滞后机构沿搅拌架轴向的位置偏向于驱动齿轮所在的一侧。In the foregoing toner cartridge for a laser printer, the rotation hysteresis mechanism is biased toward the side where the drive gear is located along the axial direction of the agitator.
前述激光打印机用碳粉盒，其旋转滞后机构沿搅拌架轴向的位置偏向于编码盘所在的一侧。In the foregoing toner cartridge for a laser printer, the position of the rotary lag mechanism in the axial direction of the agitating frame is biased toward the side where the encoder disk is located.
有益效果Beneficial effect
本发明的激光打印机用碳粉盒，把搅拌架分剖成搅拌段和感测段两部分，这两部分之间则通过旋转滞后机构保持连接。在这种构造方式下，搅拌架的搅拌段继续承担搅拌、传送碳粉和传递旋转扭矩的任务，搅拌架的感测段承担起搅拌、传送碳粉、感知碳粉惯性阻力和传递旋转扭矩的任务。如此，搅拌段和感测段两者之间由于旋转滞后机构的介入而在探测顺序上出现了感知碳粉惯性阻力的先后差异。该差异经由搅拌架传递至编码盘后再由激光打印机获知，从而实现灵敏地检测碳粉仓内碳粉储量的任务。此外，在搅拌架转动时，旋转滞后机构所产生的滞后转动效应，可以降低初始驱动力，这对于搅动因长期储运而整体呈压紧状态的碳粉具有较好的缓冲作用。另外，在搅动的碳粉较多时，搅拌架可与碳粉充分接触，从而提高碳粉的带电能力。 In the toner cartridge for a laser printer of the present invention, the agitator is divided into two parts, a stirring section and a sensing section, and the two parts are connected by a rotation hysteresis mechanism. In this configuration, the agitating section of the agitator continues to undertake the task of agitating, conveying toner and transmitting rotational torque. The sensing section of the agitator takes up agitation, conveys toner, senses the inertial resistance of the toner, and transmits the rotational torque. task. Thus, the difference in the inertial resistance of the perceived toner occurs in the detection sequence due to the intervention of the rotational lag mechanism between the agitating section and the sensing section. This difference is transmitted to the code disk via the agitator and then learned by the laser printer, thereby achieving the task of sensitively detecting the toner content in the toner hopper. In addition, when the mixing frame rotates, the hysteresis rotation effect generated by the rotation hysteresis mechanism can reduce the initial driving force, which has a better buffering effect on the agitation of the carbon powder which is integrally compacted due to long-term storage and transportation. In addition, when there is a large amount of agitated toner, the agitator can be in full contact with the toner, thereby improving the charging ability of the toner.
附图说明DRAWINGS
图1现有激光打印机用碳粉盒透视图一；Figure 1 is a perspective view of a conventional toner cartridge for a laser printer;
图2现有激光打印机用碳粉盒透视图二；Figure 2 is a perspective view of a conventional toner cartridge for a laser printer;
图3现有激光打印机用碳粉盒之搅拌架透视图一；Figure 3 is a perspective view of a conventional mixing frame for a toner cartridge for a laser printer;
图4现有激光打印机用碳粉盒之搅拌架透视图二；Figure 4 is a perspective view of the mixing frame of the existing toner cartridge for a laser printer;
图5现有激光打印机用碳粉盒之搅拌架分解透视图；Figure 5 is an exploded perspective view of a conventional mixing frame for a toner cartridge for a laser printer;
图6本发明激光打印机用碳粉盒局部剖视图；Figure 6 is a partial cross-sectional view showing a toner cartridge for a laser printer of the present invention;
图7本发明激光打印机用碳粉盒之搅拌架透视图；Figure 7 is a perspective view of a mixing frame of a toner cartridge for a laser printer of the present invention;
图8本发明激光打印机用碳粉盒之搅拌架局部透视图一；Figure 8 is a partial perspective view of the mixing frame of the toner cartridge for a laser printer of the present invention;
图9本发明激光打印机用碳粉盒之搅拌架局部透视图二。Figure 9 is a partial perspective view of the mixing frame of the toner cartridge for a laser printer of the present invention.
本发明的实施方式Embodiments of the invention
下面结合附图详细描述本发明激光打印机用碳粉盒。The toner cartridge for a laser printer of the present invention will be described in detail below with reference to the accompanying drawings.
参见图6～9，分别示出本发明激光打印机用碳粉盒或其搅拌架等构件的透视图、结构分解透视图和局部透视图。6 to 9, a perspective view, a structural exploded perspective view, and a partial perspective view, respectively, of a toner cartridge for a laser printer or a stirring frame thereof according to the present invention are shown.
本发明激光打印机用碳粉盒同图1～5所示现有激光打印机碳粉盒的主要结构基本相同，其主要差别是两者之间在搅拌架结构上存在着差异。下文中将着重描述本发明激光打印机用碳粉盒的搅拌架结构，其它相同于现有激光打印机碳粉盒的部分，可参阅图1～5所示现有激光打印机碳粉盒及其文字描述，来了解本发明激光打印机用碳粉盒的整体构造。在下文中，附图6～9中各构件的标记仍然沿用图1～5所示现有激光打印机碳粉盒对应构件的标记。The toner cartridge for a laser printer of the present invention is basically the same as the main structure of the conventional laser printer toner cartridge shown in Figs. 1 to 5, and the main difference is that there is a difference in the structure of the stirring frame between the two. Hereinafter, the structure of the stirring frame of the toner cartridge for a laser printer of the present invention will be mainly described. Other parts similar to those of the existing laser printer toner cartridge can be referred to the existing laser printer toner cartridge and the text description thereof shown in FIGS. To understand the overall construction of the toner cartridge for a laser printer of the present invention. In the following, the markings of the components of Figures 6-9 are still marked with the corresponding components of the conventional laser printer toner cartridge shown in Figures 1-5.
本发明激光打印机用碳粉盒100的主要改进表现在以下方面。The main improvement of the toner cartridge 100 for a laser printer of the present invention is as follows.
其搅拌架104的轴向两端在伸出到碳粉仓108的外部之后，分别同驱动齿轮107和编码盘101固定连接。搅拌架104位于碳粉仓108内的部分被设计成搅拌段109和感测段110两部分。搅拌段109和感测段110两者之间通过旋转滞后机构111连接。搅拌架104对应于搅拌段109的轴端固定连接驱动齿轮107。搅拌架104对应于感测段110的轴端固定连接编码盘101。搅拌段109和感测段110两者之间的扭矩传递任务由旋转滞后机构111来承担。沿着搅拌架104的轴向X，旋转滞后机构111的位置被设置于搅拌架104的中部，亦即搅拌段109和感测段110沿轴向X的长度保持基本相同。The axial ends of the agitating frame 104 are fixedly coupled to the drive gear 107 and the encoder disk 101, respectively, after projecting to the outside of the toner hopper 108. The portion of the agitator 104 located within the toner hopper 108 is designed as a portion of the agitating section 109 and the sensing section 110. The agitating section 109 and the sensing section 110 are connected by a rotation hysteresis mechanism 111. The agitator 104 is fixedly coupled to the drive gear 107 corresponding to the axial end of the agitating section 109. The agitator 104 is fixedly coupled to the code disc 101 corresponding to the axial end of the sensing section 110. The torque transfer task between the agitating section 109 and the sensing section 110 is undertaken by the rotational hysteresis mechanism 111. Along the axial direction X of the agitator 104, the position of the rotary hysteresis mechanism 111 is placed in the middle of the agitator 104, i.e., the agitating section 109 and the sensing section 110 remain substantially the same along the length of the axial direction X.
旋转滞后机构111的组成包括连轴板112和迟动板113。The composition of the rotary hysteresis mechanism 111 includes a coupling plate 112 and a retarding plate 113.
在搅拌架104的轴向X上，于连轴板112沿X轴向的第一侧面114上，设置有第一卡块115和限位块116。第一卡块115和限位块116的位置都同时偏离搅拌架104的中轴，它们位于同搅拌架104的中轴保持预定距离的不同圆周上。In the axial direction X of the agitator 104, on the first side 114 of the coupling plate 112 along the X-axis, a first block 115 and a stop block 116 are disposed. The positions of the first block 115 and the stop block 116 are both offset from the central axis of the agitator 104, which are located on different circumferences that are a predetermined distance from the central axis of the agitator 104.
在搅拌架104的轴向X上，于迟动板113沿X轴向的第一侧面117上，设置有第二卡块118和限位腔119。第二卡块118和限位腔119的位置都同时偏离搅拌架104的中轴，它们位于同搅拌架104的中轴保持预定距离的不同圆周上。In the axial direction X of the agitator 104, on the first side 117 of the retardation plate 113 along the X-axis, a second block 118 and a limiting cavity 119 are provided. The positions of the second block 118 and the limiting cavity 119 are simultaneously offset from the central axis of the agitator 104, which are located on different circumferences that are a predetermined distance from the central axis of the agitator 104.
在碳粉盒100的组装状态下，连轴板112的第一侧面114与迟动板113的第一侧面117之间保持面面相对的状态。扭簧120的簧腿之一固定地压扣于第一卡块115上，其簧腿之二固定地压扣于第二卡块118上。限位块116的自由端伸入到限位腔119中。扭簧120以其中轴线重合于搅拌架104中轴线的方式固定于搅拌架104的中轴上。在迟动板113的第一侧面117上，于限位腔119沿圆周方向的两壁上分别各设置有一片止动块121、122。连轴板112沿X轴向背对第一侧面114的第二侧面123同搅拌段109的中轴固定连接。迟动板113沿X轴向背对第一侧面117的第二侧面124同感测段110的中轴固定连接。In the assembled state of the toner cartridge 100, the first side surface 114 of the coupling plate 112 and the first side surface 117 of the retardation plate 113 are kept in a state of being opposed to each other. One of the spring legs of the torsion spring 120 is fixedly fastened to the first block 115, and the second leg of the torsion leg is fixedly pressed against the second block 118. The free end of the stop block 116 extends into the limiting cavity 119. The torsion spring 120 is fixed to the central shaft of the agitator 104 in such a manner that its axis coincides with the central axis of the agitator 104. On the first side surface 117 of the retardation plate 113, a plurality of stopper blocks 121 and 122 are respectively disposed on the two walls of the limiting cavity 119 in the circumferential direction. The second side 123 of the coupling plate 112 facing away from the first side surface 114 along the X-axis is fixedly coupled to the central axis of the agitating section 109. The second side 124 of the retarding plate 113 facing away from the first side 117 along the X-axis is fixedly coupled to the central axis of the sensing section 110.
碳粉盒100工作时，驱动齿轮107驱使搅拌段109旋转，搅拌段109转过预定角度之后，由其驱动的旋转滞后机构111中所设置的限位块116在限位腔119中运动并到达止动块122所在的位置，进而同止动块122形成相互抵压的状态，将旋转扭矩传递给感测段110，最终实现由搅拌段109和感测段110所构成的整个搅拌架104的旋转。在此过程中，搅拌段109和感测段110两者之间在旋转时间顺序上的差异经由编码盘101反馈至激光打印机后，即可实现对碳粉仓108内所容储碳粉的检测。When the toner cartridge 100 is in operation, the driving gear 107 drives the agitating section 109 to rotate, and after the agitating section 109 rotates by a predetermined angle, the limiting block 116 provided in the rotary hysteresis mechanism 111 driven by it moves and reaches in the limiting cavity 119. The position of the stop block 122 is further in a state of being pressed against the stopper block 122, and the rotational torque is transmitted to the sensing section 110, thereby finally realizing the entire agitator 104 composed of the agitating section 109 and the sensing section 110. Rotate. During this process, the difference in the rotation time sequence between the agitation section 109 and the sensing section 110 is fed back to the laser printer via the encoder disc 101, so that the toner stored in the toner cartridge 108 can be detected. .
在上述实施方式中，可以将旋转滞后机构111在搅拌架104的轴向X上的位向进行一百八十度的换向；也可以将旋转滞后机构111在搅拌架104轴向X上的位置作出偏离搅拌架104中部的调整，即旋转滞后机构111的位置偏向于驱动齿轮107所在的一侧，或者偏向于编码盘101所在的一侧。这些调整均属于在本发明技术方案实质特征基础上作出的简单变化，不能脱离本发明权利要求的保护范围。In the above embodiment, the position of the rotation hysteresis mechanism 111 in the axial direction X of the agitating frame 104 may be reversed by one hundred and eighty degrees; or the rotational hysteresis mechanism 111 may be in the axial direction X of the agitating frame 104. The position is offset from the middle of the agitator 104, i.e., the position of the rotary hysteresis mechanism 111 is biased toward the side on which the drive gear 107 is located, or is biased toward the side on which the encoder disc 101 is located. These modifications are all based on the simple changes made on the basis of the essential features of the technical solutions of the present invention, and cannot be deviated from the scope of protection of the claims of the present invention.
工业实用性Industrial applicability
本发明把搅拌架分剖成搅拌段和感测段两部分，这两部分之间则通过旋转滞后机构保持连接。由搅拌段继续承担搅拌、传送碳粉和传递旋转扭矩的任务，感测段承担起搅拌、传送碳粉、感知碳粉惯性阻力和传递旋转扭矩的任务。如此，搅拌段和感测段两者之间由于旋转滞后机构的介入而在探测顺序上出现了感知碳粉惯性阻力的先后差异。该差异经由搅拌架传递至编码盘后再由激光打印机获知，从而实现灵敏地检测碳粉仓内碳粉储量的任务。此外，旋转滞后机构所产生的滞后转动效应，可以降低初始驱动力，这对于搅动因长期储运而整体呈压紧状态的碳粉具有较好的缓冲作用。另外，在搅动的碳粉较多时，搅拌架可与碳粉充分接触，从而提高碳粉的带电能力。 According to the invention, the mixing frame is divided into two parts, a stirring section and a sensing section, and the two parts are connected by a rotation hysteresis mechanism. The task of agitating, conveying toner, and transmitting rotational torque continues to be carried out by the agitating section, and the sensing section assumes the task of agitating, conveying toner, sensing the inertial resistance of the toner, and transmitting the rotational torque. Thus, the difference in the inertial resistance of the perceived toner occurs in the detection sequence due to the intervention of the rotational lag mechanism between the agitating section and the sensing section. This difference is transmitted to the code disk via the agitator and then learned by the laser printer, thereby achieving the task of sensitively detecting the toner content in the toner hopper. In addition, the hysteresis rotation effect generated by the rotary hysteresis mechanism can reduce the initial driving force, which has a good buffering effect on the agitation of the carbon powder which is integrally compacted due to long-term storage and transportation. In addition, when there is a large amount of agitated toner, the agitator can be in full contact with the toner, thereby improving the charging ability of the toner.

Claims (6)

  1. 激光打印机用碳粉盒，包括显影辊、送粉辊、出粉刀、搅拌架和碳粉仓，所述搅拌架以其轴向平行于所述显影辊轴向的方式可转动地支承于所述碳粉仓内，所述搅拌架的轴向两端伸出于所述碳粉仓之外并分别同驱动齿轮和编码盘固定连接； A toner cartridge for a laser printer, comprising a developing roller, a powder feeding roller, a powder discharging knife, a stirring frame and a toner hopper, wherein the stirring frame is rotatably supported at a direction parallel to an axial direction of the developing roller In the toner cartridge, the axial ends of the stirring frame protrude from the toner cartridge and are respectively fixedly connected with the driving gear and the encoder disk;
    其特征在于：It is characterized by:
    所述搅拌架位于所述碳粉仓内的部分包括搅拌段和感测段，所述搅拌段和所述感测段之间通过旋转滞后机构连接；The portion of the mixing rack located in the toner hopper includes a stirring section and a sensing section, and the stirring section and the sensing section are connected by a rotation hysteresis mechanism;
    所述旋转滞后机构包括连轴板和迟动板，所述连轴板沿所述搅拌架轴向的第一侧面上设置有第一卡块和限位块，所述第一卡块和所述限位块均偏离所述搅拌架中轴线；The rotation hysteresis mechanism includes a coupling plate and a delay plate, and the first plate and the limiting block are disposed on the first side of the axial direction of the mixing frame, the first block and the The limit blocks are all offset from the central axis of the mixing frame;
    所述迟动板沿所述搅拌架轴向的第一侧面上设置有第二卡块和限位腔，所述第二卡块和所述限位腔均偏离所述搅拌架中轴线；a second clamping block and a limiting cavity are disposed on the first side of the agitating frame along the axial direction of the agitating frame, and the second clamping block and the limiting cavity are both offset from the central axis of the agitating frame;
    所述连轴板第一侧面与所述迟动板第一侧面之间保持面面相对的状态，扭簧的一端固定于所述第一卡块上而其另一端固定于所述第二卡块上，所述限位块的自由端伸入所述限位腔中。a state in which the first side of the connecting plate and the first side of the delay plate are opposite to each other, and one end of the torsion spring is fixed to the first block and the other end is fixed to the second card. On the block, the free end of the limiting block extends into the limiting cavity.
  2. 根据权利要求1所述激光打印机用碳粉盒，其特征在于：A toner cartridge for a laser printer according to claim 1, wherein:
    所述扭簧的中轴线以重合所述搅拌架中轴线的方式固定于所述搅拌架中轴上，在所述迟动板第一侧面于所述限位腔沿圆周方向的两壁上分别设置有止动块。The central axis of the torsion spring is fixed on the shaft of the agitating frame in a manner of overlapping the central axis of the agitating frame, and the first side of the delay plate is respectively disposed on the two walls of the limiting cavity along the circumferential direction. A stop block is provided.
  3. 根据权利要求2所述激光打印机用碳粉盒，其特征在于：A toner cartridge for a laser printer according to claim 2, wherein:
    所述连轴板沿所述搅拌架轴向背对所述连轴板第一侧面的第二侧面同所述搅拌段的中轴固定连接，所述迟动板沿所述搅拌架轴向背对所述迟动板第一侧面的第二侧面同所述感测段的中轴固定连接。a second side of the connecting plate axially facing away from the first side of the connecting plate along the axial direction of the stirring frame is fixedly connected with a middle shaft of the stirring section, and the delay plate is axially backed along the stirring frame A second side of the first side of the delay plate is fixedly coupled to the central axis of the sensing section.
  4. 根据权利要求2所述激光打印机用碳粉盒，其特征在于：A toner cartridge for a laser printer according to claim 2, wherein:
    所述连轴板沿所述搅拌架轴向背对所述连轴板第一侧面的第二侧面同所述感测段的中轴固定连接，所述迟动板沿所述搅拌架轴向背对所述迟动板第一侧面的第二侧面同所述搅拌段的中轴固定连接。a second side of the connecting plate axially facing away from the first side of the connecting plate along the axial direction of the stirring frame is fixedly connected with a middle shaft of the sensing section, and the delaying plate is axially along the stirring frame A second side facing away from the first side of the retarding plate is fixedly coupled to the central axis of the agitating section.
  5. 根据权利要求1至4任一项所述激光打印机用碳粉盒，其特征在于：A toner cartridge for a laser printer according to any one of claims 1 to 4, characterized in that:
    所述旋转滞后机构沿所述搅拌架轴向的位置偏向于所述驱动齿轮所在的一侧。The position of the rotary hysteresis mechanism along the axial direction of the agitator is biased toward the side where the drive gear is located.
  6. 根据权利要求1至4任一项所述激光打印机用碳粉盒，其特征在于：A toner cartridge for a laser printer according to any one of claims 1 to 4, characterized in that:
    所述旋转滞后机构沿所述搅拌架轴向的位置偏向于所述编码盘所在的一侧。The position of the rotary hysteresis mechanism along the axial direction of the agitator is biased toward the side where the code disc is located.
PCT/CN2011/079453 2010-09-10 2011-09-08 Toner cartridge of laser printer WO2012031557A1 (en)

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CN201773273U (en) * 2010-09-10 2011-03-23 珠海天威飞马打印耗材有限公司 Toner cartridge of laser printer

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4583843A (en) * 1983-07-18 1986-04-22 Mita Industrial Co., Ltd. Device for developing latent electrostatic image
CN1755543A (en) * 2004-09-30 2006-04-05 夏普株式会社 Developer storing container and connecting member
CN201054073Y (en) * 2007-06-20 2008-04-30 珠海天威技术开发有限公司 Developing box for laser printer
KR100896721B1 (en) * 2007-09-21 2009-05-11 김희성 Toner cartridge having an auxiliary agitating means
CN201773273U (en) * 2010-09-10 2011-03-23 珠海天威飞马打印耗材有限公司 Toner cartridge of laser printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583843A (en) * 1983-07-18 1986-04-22 Mita Industrial Co., Ltd. Device for developing latent electrostatic image
CN1755543A (en) * 2004-09-30 2006-04-05 夏普株式会社 Developer storing container and connecting member
CN201054073Y (en) * 2007-06-20 2008-04-30 珠海天威技术开发有限公司 Developing box for laser printer
KR100896721B1 (en) * 2007-09-21 2009-05-11 김희성 Toner cartridge having an auxiliary agitating means
CN201773273U (en) * 2010-09-10 2011-03-23 珠海天威飞马打印耗材有限公司 Toner cartridge of laser printer

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