WO2007012255A1 - Cartouche d’encre pour imprimante à jet d’encre - Google Patents

Cartouche d’encre pour imprimante à jet d’encre Download PDF

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Publication number
WO2007012255A1
WO2007012255A1 PCT/CN2006/001645 CN2006001645W WO2007012255A1 WO 2007012255 A1 WO2007012255 A1 WO 2007012255A1 CN 2006001645 W CN2006001645 W CN 2006001645W WO 2007012255 A1 WO2007012255 A1 WO 2007012255A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
ink
ink cartridge
liquid
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2006/001645
Other languages
English (en)
French (fr)
Inventor
Yonggang He
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Print Rite Unicorn Image Products Co Ltd
Original Assignee
Print Rite Unicorn Image Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Print Rite Unicorn Image Products Co Ltd filed Critical Print Rite Unicorn Image Products Co Ltd
Priority to US11/989,394 priority Critical patent/US8128209B2/en
Priority to EP06761400A priority patent/EP1908594B8/en
Publication of WO2007012255A1 publication Critical patent/WO2007012255A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17553—Outer structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17566—Ink level or ink residue control
    • B41J2002/17576—Ink level or ink residue control using a floater for ink level indication

Definitions

  • This invention relates to the field of printing consumables, particularly ink cartridges for use in ink jet printers. Background technique
  • Inkjet printing devices are typically equipped with an ink cartridge device that is coupled to the printhead.
  • an ink cartridge device that is coupled to the printhead.
  • the ink cartridge unit can continuously and evenly supply ink.
  • capillary suction of a porous body such as a sponge is generally used to store ink and control ink discharge.
  • the invention patent specification CN1334198A discloses a "ink cartridge with an overflow dam" which comprises a casing enclosing a core cavity, the casing comprising a top wall and an ink chamber.
  • a fluid passage connects the ink chamber to the core chamber.
  • a recess is provided on the outer surface of the top wall of the outer casing.
  • a venting opening in the recess penetrating the top wall of the core cavity provides fluid communication between the core cavity and the recess.
  • a cover is closed over the top surface of the outer casing.
  • a discharge orifice of the outer wall of the core cavity rather than the top wall provides fluid communication for ink to flow out of the core cavity.
  • One end of the overflow tube is in fluid communication with a groove in the top wall of the outer casing.
  • the other end of the overflow tube is open to another location outside the outer casing, for example, to the surrounding environment at the discharge opening.
  • a dam located in the groove between the vent and one end of the overflow tube prevents, but does not completely prevent, the ink that has overflowed from the vent from flowing into the overflow tube.
  • this type of ink cartridge is difficult to avoid ink residue, and the production cost thereof is also high, and the negative pressure state in the ink cartridge is not easily stabilized.
  • the utility model patent CN02227387. 5 discloses a "printer cartridge" which can realize that the entire inner cavity of the ink cartridge is in a negative pressure state, and that the ink outlet of the ink cartridge that is moved away from the printer is in a sealed state to prevent ink from flowing out. It includes an ink reservoir, a pressure adjustment mechanism, a seal ring and a spring.
  • the pressure adjusting mechanism is placed in the ink storage chamber, and includes a front and a rear valve body, a valve film, a face cover and a spring, and a valve film is arranged between the front and rear valve bodies, and between the valve film and the front valve body There is a spring, an air groove is formed in the rear valve body, a convex concave hole is arranged in the middle of the bottom surface of the groove, and a small round hole with a convex edge is opened on the valve film, and the circular hole is spring-mounted on the rear valve body Inside the recessed hole.
  • the pressure adjusting mechanism is mounted on the surface cover of the ink storage chamber, and the surface cover has a vent hole.
  • the air groove of the rear valve body has an air hole communicating with the vent hole on the surface cover, and the vent hole is open to the atmosphere.
  • the technical solution utilizes a pressure adjusting mechanism composed of a valve film and a spring
  • the sealing effect of the vent hole and the ink outlet port is adjusted to adjust the negative pressure of the ink chamber generated after the ink is sucked by the printing needle, so that the ink storage chamber is in a negative pressure state under the working state, and the force of the spring is matched with the sealing ball to realize the separation from the printer. Seal of the ink outlet of the ink cartridge.
  • CN200410083213 discloses an ink cartridge constructed of an ink tank that can be used to store ink and a shutter mechanism that is placed in an ink tank.
  • the shutter mechanism includes a link that is swingably supported. A shutter is provided at one end of the link and a float is provided at the other end.
  • the float weight and volume are set in such a manner that when the entire shutter mechanism is disposed in the ink, the link moves in a first direction under the action of buoyancy and gravity generated, and when a part of the float is from the ink level When the middle is extended, the connecting rod is opposite in the second direction of movement under the action of buoyancy and gravity.
  • the remaining amount of ink can be indicated without being disturbed, for example, by excessive influence of the surface tension of the ink. Summary of the invention
  • An object of the present invention is to provide an ink cartridge for an ink jet printer which can monitor the use of ink in an ink chamber in real time and provide gas transport to the ink chamber in a timely manner to maintain air pressure balance.
  • an ink cartridge for an ink jet printer includes a case 3 and a cover 2.
  • the cartridge 3 is provided with a reservoir chamber 30 for storing ink and a gas guide column 34 for communicating the reservoir chamber 30 with the outside atmosphere.
  • the lid 2 is used to cover the case 3.
  • the ink cartridge is characterized in that the cover 2 is provided with a liquid injection hole 22 for injecting ink.
  • An equalization chamber 313, a detection chamber 315, and a buoy 316 are also disposed in the casing 3.
  • the equalization chamber 313 is connected to the detection chamber 315 by a through hole 314, and communicates with the reservoir chamber 30 at its vertical bottom.
  • the detection chamber 315 and the reservoir chamber 30 are in communication with the liquid guiding holes 317.
  • the buoy 316 is located in the detection chamber 315 and has a density that is less than the density of the ink in the reservoir chamber 30.
  • the vertical portion of the air guide post 34 communicates with the outside atmosphere through the waterproof cotton 3410.
  • the through hole 314 is adjusted to be located both in the vertical direction of the equalization cavity 313 and also in the vertical upward direction of the detection cavity 315.
  • the equalization chamber 313 functions to maintain the pressure balance inside the ink cartridge.
  • the waterproof cotton 3410 is preferably filled and filled in the air guiding chamber 341.
  • the position of the air guiding chamber 341 is lower than the vertical bottom of the liquid storage chamber 30, and the vertical portion thereof communicates with the outside atmosphere through the air groove 332 which penetrates the bottom wall of the casing 3.
  • a projection 21 is provided on the cover 2. In a state where the cover 2 and the casing 3 are completely mounted, the protruding portion 21 is located outside the vertical direction of the casing 3. A portion of the cover 2 corresponding to the projection 21 is recessed toward the projection 21 to form a recess 23.
  • FIG. 1 is a schematic view showing the outline of an ink cartridge for an inkjet printer of the present invention
  • Figure 2 is a schematic view showing the outer structure of the ink cartridge cover for the ink jet printer of the present invention
  • Figure 3 is a schematic view showing the outline structure of the ink cartridge cover for the ink jet printer of the present invention.
  • Figure 4 is a schematic view showing the outer structure of the ink cartridge case for the ink jet printer of the present invention.
  • Figure 5 is a schematic view showing the outer structure of the ink cartridge case for the ink jet printer of the present invention.
  • Figure 6 is a top plan view of the ink cartridge cover for the ink jet printer of the present invention.
  • Figure 7 is a cross-sectional view showing the ink cartridge C-C of the ink jet printer of the present invention.
  • the ink cartridge 1 includes a case 3 and a cover 2.
  • the cartridge 3 is provided with a reservoir chamber 30 for storing ink, a gas guide column 34 for communicating the reservoir chamber 30 with the outside atmosphere, and an ink supply port 32 for supplying ink to the printer through the bottom wall of the cartridge body 3, An equalization chamber 313 for adjusting the pressure in the chamber and a detection chamber 315 for monitoring the amount of ink stored in the chamber and its buoy 316.
  • the lower portion of the ink supply port 32 is provided as a cylindrical cavity 321.
  • a seal 322 matching the printing needle is disposed near the lower end surface of the cylindrical cavity 321 . After the ink is filled, the lower end surface of the cylindrical cavity 321 is generally sealed with a heat seal film material 323 (Figs. 5, 7).
  • the equalization chamber 313 and the detection chamber 315 are disposed at a lower portion of the platform 31 near the side wall of the casing 3.
  • the equalization chamber 313 and the detection chamber 315 are communicated by the through hole 314, and communicate with the liquid storage chamber 30 through the through hole 311 at the vertical bottom thereof.
  • the through hole 314 is located near the top of the equalization cavity 313 and the detection cavity 315 at the same time.
  • the detection chamber 315 and the reservoir chamber 30 are in communication with the liquid guiding holes 317.
  • the position of the liquid guiding hole 317 is lower than the bottom of the equalization chamber 313, and the lowermost end thereof is located substantially in the same horizontal plane as the bottom of the liquid storage chamber 30.
  • the buoy 316 is located in the detection chamber 315.
  • the buoy 316 In order to ensure that the buoy 316 floats above the ink level, its density should be less than the density of the ink in the reservoir 30, and its contact area with the ink should be an appropriate value. For ease of installation, it is generally first opened at the bottom 312 of the detection chamber 315, then introduced into the buoy 316, and the opening is closed with a film material 3110. For ease of monitoring, the wall portion of the chamber in which the detection chamber 315 is located is prepared from a transparent or permeable material. This makes it easy to monitor the ink condition in the cartridge in the case of visual inspection or use of a light sensor.
  • the ink in the liquid storage chamber 30 can be consumed first, and before the ink in the liquid storage chamber 30 is consumed to the upper end portion of the through hole 311 or the liquid guiding hole 317, that is, before the air enters the equalizing chamber 313, the buoy 316 is always in the air. Near the top of the detection chamber 315, the maximum use of ink in the reservoir 30 is achieved, reducing the amount of residual ink.
  • the bottom position of the air guiding column 34 is lower than the bottom of the liquid storage chamber 30, and the upper end thereof is higher than the inner liquid surface of the liquid storage chamber 30, and is in gaseous communication with the liquid storage chamber 30.
  • an air guiding chamber 341 which is formed by a part of the side wall 342 of the casing 3 and which is located lower than the bottom of the liquid storage chamber 30 is provided.
  • the air guiding chamber 341 is open at the bottom and communicates with the air guiding column 34.
  • the upper portion passes through the air hole 343, is buried in the air groove 332 in the bottom wall of the casing 3, and finally communicates with the external atmosphere through the opening 331 in the bottom wall of the casing 3. .
  • the waterproof cotton 3410 is stuffed in the air guiding chamber 341, and then the bottom opening of the air guiding chamber 341 is closed by a heat sealing film material.
  • the opening 331 is closed with the same material as the heat seal film material 323 before the cartridge is used.
  • the bottom wall of the casing 3 in which the air holes 343, the air grooves 332 and the opening 331 are located is formed in a thickened manner to form a thick boss 33 to increase the strength of the corresponding portion.
  • the cover 2 is used to cover the case 3.
  • a projection 21 and a liquid injection hole 22 for pouring ink are disposed thereon.
  • the projection 21 is located on the outer side of the top of the casing 3.
  • a portion of the cover 2 corresponding to the projection 21 is recessed toward the projection 21 to form a recess 23 which helps to adjust the pressure state in the ink cartridge 1.
  • the ink cartridge is placed in a negative pressure environment, ink is filled through the liquid injection hole 22, and the liquid injection hole 22 is sealed by a rubber plug under a negative pressure state to maintain the inner cavity of the ink cartridge. Negative pressure state.
  • the ink cartridge for an inkjet printer of the present invention When the ink cartridge for an inkjet printer of the present invention is used, in order to fully exert the indication function of the buoy 316, it is placed at the top of the detection chamber 315, and the ink cartridge should be tilted to the side for a few seconds to ensure that the detection chamber 315 is completely filled with ink. No air is present.
  • the buoy 316 rises and floats on the vertical top of the detection chamber 315.
  • the inclined side position means a state in which the vertical direction of the detection chamber 315 is upward and the top is downward.
  • the vertical direction of the detection chamber 315 where the buoy 316 is located in the normal use state is set to the visual inspection or photosensor detection area.
  • the ink cartridge for inkjet printer of the present invention is provided with three chambers each having a function: a liquid storage chamber, an equalization chamber and a detection chamber, and a buoy indicating the storage amount of the ink is set in the detection chamber to balance the ink supply.
  • a porous waterproof cotton having a strong cushioning effect is provided.
  • the buoy can be conveniently floated and floated with the change of the liquid storage volume in the liquid storage chamber, and then the external liquid visual or photosensor can be used to monitor the liquid storage volume in the liquid storage chamber in real time. Change to reduce the amount of ink remaining.

Landscapes

  • Ink Jet (AREA)

Description

喷墨打印机用墨盒 技术领域
本发明涉及打印耗材领域， 特别是用于喷墨打印机的墨盒。 背景技术
喷墨打印设备通常配设有一个墨盒装置与打印头接通。打印机在执行打印 作业时，必须具备的一项基本条件是墨盒装置能够连续均匀地供墨。常见的墨 盒装置中，普遍利用一种多孔体例如海绵的毛细吸力储存墨液和控制出墨。例 如发明专利申请说明书 CN1334198A公开了一种 "带有溢出坝的墨盒"，它包括 一个封闭芯腔的外壳，该外壳包含一个顶壁和一个墨水腔。一个流体通道连接 墨水腔和芯腔。外壳顶壁的外表面上设有一个凹槽。在凹槽处的一个穿透芯腔 顶壁的通气孔在芯腔和凹槽之间提供流体连通。在外壳顶表面上方一个覆盖物 封闭着该凹槽。一个芯腔外壁而非顶壁的排出孔提供用于墨水从芯腔流出的流 体连通。溢出管的一端与外壳顶壁内的凹槽流体连通。而溢出管的另一端朝外 壳外部另一位置， 例如接近排出孔处的周围环境敞开。一个位于凹槽内的， 并 位于通气孔和溢出管一端之间的坝阻止但不是完全阻止从通气孔溢出的墨水 流入溢出管。 通常， 这种类型的墨盒难于避免墨液残留， 其生产成本也较高， 墨盒中的负压状态不易稳定。
此外，通过改进墨盒的结构，也可以获得凭借几何结构方式实现储存墨液 和控制出墨的墨盒装置。 例如， 实用新型专利 CN02227387. 5公开了一种 "打 印机墨盒"， 可以实现墨盒整个内腔处于负压状态， 并保证移离打印机的墨盒 出墨口处于密封状态以防止墨水外流。它包括储墨腔、压力调整机构、密封圈 和弹簧。压力调整机构放置在储墨腔内， 它包括前、 后阀体、 阀膜、面盖和弹 簧， 密合在一起的前、后阀体之间有一阀膜， 阀膜与前阀体之间有一弹簧， 后 阀体上开有一个空气槽，槽底面的中部设有一个凸起的凹孔， 阀膜上开有一个 带凸边的小圆孔，该圆孔被弹簧顶在后阀体的凹孔内。压力调整机构安装在储 墨腔的面盖上，面盖上有一通气孔，后阀体的空气槽有一气孔与面盖上的通气 孔相通，通气孔与大气相通。该技术方案利用阀膜和弹簧构成的压力调整机构 对通气孔和出墨口的密封作用，调节打印针头吸墨后产生的墨水腔负压，实现 了工作状态下储墨腔处于负压状态，利用弹簧的作用力配合密封球实现了脱离 打印机后墨盒出墨口的密封。为实现工作状态下储墨腔的负压状态和脱机后墨 盒出墨口的密封状态，这种技术方案需要增设一个压力调节机构，致使技术方 案构成复杂化， 其生产技术也随之复杂化。
此外， 还可看到未使用海绵体的另外一种结构的墨盒。 发明专利申请
CN200410083213,公开了一种墨盒， 由可用于存储墨水的墨水槽和置于墨水槽 中的光闸机构构成。光闸机构包括一可摆动地支撑的连杆。连杆一端部设有光 闸而另一端部设有浮子。浮子重量和体积以这种方式设定， 当整个光闸机构设 置于墨水中时，连杆在所产生出的浮力和重力的作用下运动的第一方向，与其 中当一部分浮子从墨水液面中伸出时连杆在浮力和重力的作用下运动的第二 方向相反。墨水剩余量可以在不会受到干扰例如墨水表面张力过分影响的情况 下被指示出。 发明内容
本发明目的在于提供一种喷墨打印机用墨盒，该墨盒可被实时监测墨腔中 墨水的使用状况， 并向墨腔中适时提供气体输运以维持气压平衡。
按照上述发明目的，提供一种喷墨打印机用墨盒。它包括盒体 3和盒盖 2。 盒体 3中设置有用于贮藏墨液的贮液腔 30和用于连通贮液腔 30与外部大气的 导气柱 34。盒盖 2用于封盖盒体 3。该墨盒特点是， 盒盖 2上设置有用于灌注 墨水的注液孔 22。 在盒体 3中还设置有均衡腔 313、 检测腔 315和浮标 316。 均衡腔 313与检测腔 315由通孔 314连通， 在其铅垂向底部则与贮液腔 30连 通。检测腔 315与贮液腔 30由导液孔 317连通。浮标 316位于检测腔 315中， 其密度小于贮液腔 30中墨液的密度。 导气柱 34的铅垂向下部， 通过防水绵 3410与外部大气连通。
进一步改进上述技术方案， 可获得更好效果的墨盒。
调整上述通孔 314既位于均衡腔 313的铅垂向上部， 同时也位于检测腔 315的铅垂向上部。
导液孔 317的位置低于上述均衡腔 313的铅垂向底部时，可以较好地发挥 均衡腔 313在保持墨盒内部压力平衡方面的作用。
防水绵 3410最好是充塞并填满于导气腔 341中。 导气腔 341的位置低于 贮液腔 30的铅垂向底部， 其铅垂向上部通过贯穿盒体 3底壁的气槽 332连通 外部大气。
盒盖 2上设置有突出部 21。 在盒盖 2与盒体 3完成安装的状态下， 突出 部 21位于盒体 3铅垂向顶部之外。盒盖 2上与突出部 21所在对应的部分， 向 突出部 21凹入， 形成凹槽 23。 附图说明
图 1本发明喷墨打印机用墨盒外形结构示意图；
图 2本发明喷墨打印机用墨盒盒盖外形结构示意图一；
图 3本发明喷墨打印机用墨盒盒盖外形结构示意图二；
图 4本发明喷墨打印机用墨盒盒体外形结构示意图一；
图 5本发明喷墨打印机用墨盒盒体外形结构示意图二；
图 6本发明喷墨打印机用墨盒盒盖顶视图；
图 7本发明喷墨打印机用墨盒 C一 C剖视图。
以下结合各图及实施例对本发明作进一步说明。 具体实施方式
参见图 1、 2、 3、 4、 5、 6、 7, 本发明的喷墨打印机用墨盒实施方式之一。 本说明书中文字部分涉及的附图取向， 以墨盒 1的安装打印状态为基础， 即以 附图 7的摆放状态为取向基础。
墨盒 1包括盒体 3和盒盖 2。
盒体 3中设置有用于贮藏墨液的贮液腔 30、用于连通贮液腔 30与外部大 气的导气柱 34、 贯穿盒体 3底壁用于向打印机供墨的供墨口 32、 用于调节腔 内压力的均衡腔 313和用于监测腔内墨水贮藏量的检测腔 315及其浮标 316。 供墨口 32的下部设置为圆柱腔 321。 圆柱腔 321下部端面附近设置有与打印 针匹配的密封件 322。灌墨后， 一般都用热封薄膜材料 323密封圆柱腔 321的 下部端面 （图 5、 7)。 参见图 4、 5、 7, 均衡腔 313和检测腔 315设置于盒体 3侧壁附近的平台 31下部。 均衡腔 313与检测腔 315由通孔 314连通， 在其铅垂向底部则通过 通孔 311与贮液腔 30连通。 通孔 314同时位于均衡腔 313和检测腔 315的顶 部附近。 检测腔 315与贮液腔 30由导液孔 317连通。 导液孔 317的位置低于 均衡腔 313的底部， 其最下端与贮液腔 30的底部基本位于同一水平面内。 浮 标 316位于检测腔 315中。为保证浮标 316浮于墨水液面之上，其密度应当小 于贮液腔 30中墨液的密度， 其与墨液的接触面积应保证一个适当的数值。 为 安装方便， 一般先在检测腔 315底部 312开口， 之后导入浮标 316， 再用薄膜 材料 3110封闭该开口。 为方便监测， 检测腔 315所在盒壁部分采用透明的或 可透光的材料制备。这样在目测或使用光传感器的情况下，就可以方便地监测 墨盒中墨水状况。 如此设计， 可以先消耗贮液腔 30 中的墨水， 在贮液腔 30 中的墨水耗至通孔 311或导液孔 317的上端部之前， 即空气进入均衡腔 313 之前，使浮标 316始终处于检测腔 315的顶部附近，实现最大限度地使用贮液 腔 30中的墨水， 减少残墨量。
导气柱 34的底部位置低于贮液腔 30的底部， 其上端高出贮液腔 30内部 液面， 与贮液腔 30气态连通。在导气柱 34的底部， 设置有由盒体 3的一部分 侧壁 342构成的， 位置低于贮液腔 30底部的导气腔 341。 导气腔 341底部开 口并与导气柱 34连通， 其上部通过气孔 343， 经埋置于盒体 3底壁中的气槽 332，最后通过盒体 3底壁上的开口 331与外部大气连通。将防水绵 3410填塞 于导气腔 341中，之后采用热封薄膜材料封闭导气腔 341底部开口。在墨盒装 机使用前， 用与热封薄膜材料 323连体的同种材料封闭开口 331。 气孔 343、 气槽 332和开口 331所在的盒体 3底壁，采用一种加厚的方式，形成加厚凸台 33, 以提高该相应部分的强度。 使用防水绵 3410并配之于迷宫式的气槽 332 后， 可使墨盒内的墨水难于进入导气腔 341和相应气槽 332部分， 从而，在装 机前去除热封薄膜材料 323时可以保证无墨液漏出。
参见图 2、 3、 7， 盒盖 2用于封盖盒体 3。其上设置有突出部 21和用于灌 注墨水的注液孔 22。 在盒盖 2与盒体 3完成安装的状态下， 突出部 21位于盒 体 3顶部之外侧。 盒盖 2上与突出部 21所在对应的部分， 向突出部 21凹入， 形成凹槽 23， 有助于调节墨盒 1内的压力状态。 在使用本发明喷墨打印机用墨盒前，先将墨盒置于负压环境中，通过注液 孔 22进行灌墨， 并在负压状态下采用胶塞密封注液孔 22， 使墨盒内腔保持负 压状态。
在使用本发明喷墨打印机用墨盒时， 为了充分发挥浮标 316的指示作用， 使其位于检测腔 315 的铅垂向顶部， 应将墨盒倾斜侧置数秒， 以保证检测腔 315内完全充满墨水， 而无空气存在。 当恢复正常使用摆放状态后， 浮标 316 即升浮于检测腔 315的铅垂向顶部。倾斜侧置是指检测腔 315的铅垂向底部朝 上而顶部在下的状态。 监测墨盒中墨水容量时， 将正常使用状态下浮标 316 所在的检测腔 315的铅垂向顶部设置为目测或光传感器检测区域。 工业应用性
本发明的喷墨打印机用墨盒，在结构上设置了各具功能的三个腔室：贮液 腔、均衡腔和检测腔， 在检测腔内设置标识墨液贮藏量的浮标，在供墨平衡状 态方面设置具有较强的缓冲调节作用的多孔防水绵。利用均衡腔的压力调节功 能和多孔防水绵的缓冲调节作用，可以方便地实现浮标随贮液腔中贮液量变化 而沉浮，进而配合外部目测或光传感器实时监测贮液腔中贮液量的变化， 以减 少墨液残留量。

Claims

权利要求书
1、 喷墨打印机用墨盒， 包括
盒体 （3)和盒盖（2), 盒盖 （2)用于封盖所述盒体（3);
盒体 （3) 中设置有用于贮藏墨液的贮液腔 （30) 和用于连通所述贮液腔 (30) 与外部大气的导气柱 (34)；
其特征在于：
盒体（3) 中还设置有均衡腔（313)、 捡测腔（315)和浮标（316)， 均衡 腔 (313) 与检测腔 (315) 由通孔 (314)连通；
均衡腔（313)在其铅垂向底部与所述贮液腔（30)连通，所述检测腔（315) 与所述贮液腔（30) 由导液孔（317)连通；
浮标（316)位于所述检测腔（315) 中， 其密度小于所述贮液腔（30) 中 墨液的密度。
2、 根据权利要求 1所述的喷墨打印机用墨盒， 其特征在于：
所述盒盖（2) 上设置有用于灌注墨水的注液孔 (22)；
所述导气柱 （34) 的铅垂向下部通过防水绵 （3410) 与外部大气连通。
3、 根据权利要求 2所述的喷墨打印机用墨盒， 其特征在于- 所述通孔 （314) 同时位于所述均衡腔 （313)和所述检测腔 （315) 的铅 垂向上部。
4、 根据权利要求 1至 3任一项所述的喷墨打印机用墨盒， 其特征在于： 所述导液孔 （317)位置低于所述均衡腔（313) 的铅垂向底部。
5、 根据权利要求 4所述的喷墨打印机用墨盒， 其特征在于：
所述防水绵（3410)充塞于导气腔（341 ) 中， 所述导气腔（341 )位置低 于所述贮液腔（30) 的铅垂向底部， 所述导气腔 （341 ) 的铅垂向上部通过贯 穿所述盒体 （3)底壁的气槽（332)连通外部大气。
6、 根据权利要求 5所述的喷墨打印机用墨盒， 其特征在于： 所述盒盖 (2)上设置有突出部（21)， 安装状态下所述突出部（21 )位于 所述盒体（3)铅垂向顶部之外， 所述盒盖（2)上与所述突出部（21 )所在对 应的部分向所述突出部 （21 ) 凹入形成凹槽 （23)。
PCT/CN2006/001645 2005-07-25 2006-07-11 Cartouche d’encre pour imprimante à jet d’encre Ceased WO2007012255A1 (fr)

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EP1908594B8 (en) 2011-09-21
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CN2803708Y (zh) 2006-08-09

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