WO2003037634A1 - Cartouche d'encre pour imprimante - Google Patents

Cartouche d'encre pour imprimante Download PDF

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Publication number
WO2003037634A1
WO2003037634A1 PCT/CN2002/000723 CN0200723W WO03037634A1 WO 2003037634 A1 WO2003037634 A1 WO 2003037634A1 CN 0200723 W CN0200723 W CN 0200723W WO 03037634 A1 WO03037634 A1 WO 03037634A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink
chamber
ink supply
cavity
supply port
Prior art date
Application number
PCT/CN2002/000723
Other languages
English (en)
French (fr)
Other versions
WO2003037634A8 (fr
Inventor
Qingguo Xiao
Yu Li
Original Assignee
Print-Rite Unicorn Image Products Co. Ltd Of Zhuhai
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
Priority claimed from CN 01265494 external-priority patent/CN2512603Y/zh
Priority claimed from CNB011423404A external-priority patent/CN1188284C/zh
Priority claimed from CN 02115259 external-priority patent/CN1211210C/zh
Application filed by Print-Rite Unicorn Image Products Co. Ltd Of Zhuhai filed Critical Print-Rite Unicorn Image Products Co. Ltd Of Zhuhai
Priority to EP02774262A priority Critical patent/EP1440805B1/en
Priority to JP2003539947A priority patent/JP2005506920A/ja
Priority to DE60216800T priority patent/DE60216800T2/de
Priority to US10/493,992 priority patent/US7246891B2/en
Publication of WO2003037634A1 publication Critical patent/WO2003037634A1/zh
Publication of WO2003037634A8 publication Critical patent/WO2003037634A8/zh

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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
    • B41J2/1752—Mounting within the printer
    • B41J2/17523—Ink connection
    • 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

Definitions

  • the present invention relates to an ink supply device used for an inkjet recorder, and more particularly to an ink cartridge for an inkjet printer.
  • BACKGROUND OF THE INVENTION Chinese Invention Patent Application Publication CN1252353A discloses an invention named "ink tank, assembly including the ink tank, and printing device using the same". The structure of the ink cartridge is described.
  • the ink cartridge is a double-cavity ink cartridge separated by a partition.
  • One cavity has an ink-absorbing material, an ink supply port, and an air hole communicating with the atmosphere.
  • the other cavity is a substantially closed liquid storage cavity. The two cavities communicate through a channel near the bottom of the partition.
  • the ink in the liquid storage cavity is supplied to the ink absorbing material through the connection channel of the two cavities.
  • the air that passes through the ink absorbing material through the air holes and is replenished to the liquid storage cavity through the connection channel reduces the negative pressure in the liquid storage cavity, and forms a substantially constant negative pressure for the print head, thereby keeping the ink supplied to the print head stable.
  • the detection principle is as follows: When there is enough ink in the ink cartridge, the incident light reaches the side of the triangle and folds the ink into the ink. Is absorbed so that the photoreceptor cannot receive the light signal; when the ink is consumed below the reflective point of the prism, the incident light is reflected twice by the sides of the triangle and reaches the photoreceptor in parallel. After the photoreceptor receives the light signal, the printer Send out ink out signal. It should be pointed out that when the printer sends out the ink-out prompt signal, it only indicates that there is no ink in the liquid storage chamber. Due to the capillary action of the ink-absorbing material in the other chamber,
  • an ink cartridge which mainly includes a box body, a cover, an air bladder seat, a carcass body, and an elastic fixed bladder to form an air bladder assembly; a one-way valve assembly composed of a valve gland, a valve body, and a strainer, and There is a seal ring located in the ink supply port, and the movement direction of the valve body, that is, the center line is parallel to the center line of the ink supply port.
  • the ink content of each ink cartridge is very low, because the ink-absorbing material is usually sponge, and the sponge occupies a large volume in the cavity, and is used to hold the ink. The volume is relatively reduced.
  • the ink cartridge of the second structure described above is used in certain models of printers and has achieved good ink supply results.
  • the valve body made of rubber has a certain length in the axial direction.
  • the through hole in the valve body is unstable and deformed by the inertia force in the circumferential direction, although it can quickly recover after the inertial force disappears.
  • the ink cartridges have extremely narrow ink chambers, so that the size of a certain direction required by this one-way valve arrangement is smaller or slightly larger than the valve assembly installation The minimum required size makes it impossible or difficult to assemble the ink cartridge.
  • the ink cartridge with a check valve is assembled in a narrow ink cavity, the product qualification rate is greatly reduced.
  • ink cartridges that use a one-way valve to control ink supply have a certain space between the one-way valve outlet and the ink supply port.
  • the ink supply port of unused ink cartridges always uses a film or cap. Sealed, etc.
  • the check valve is closed in the reverse direction, and the space between the ink supply port and the ink supply needle is blocked.
  • the ink in this area is quickly squeezed, and as a result, the ink drips down the wall of the ink supply needle, which contaminates the printer or printing medium.
  • this area cannot draw negative pressure from the ink filling port located on the lid of the ink tank, causing the area to fail to fill ink or insufficient ink filling.
  • Printers with small head self-suction have intermittent ink supply during use.
  • Another object of the present invention is to solve the problem of ink dripping at the moment of installation, which may occur in an ink cartridge using a one-way valve structure, and to improve the ink injection processability in the manufacturing process of such an ink cartridge.
  • the present invention adopts a box body with an ink cavity, an ink supply port is provided on one surface of the box body, and a channel communicating with the atmosphere is provided on the box body, preferably at another side opposite to the ink supply port. One side is provided with a channel communicating with the atmosphere.
  • a lateral check valve is arranged in the box body, and the inlet end of the check valve communicates with the ink chamber.
  • the exit end communicates with the ink supply port.
  • the ink cavity is divided into the main cavity and the auxiliary cavity in principle.
  • An ink exhaustion detection prism is set near the connecting part of the main cavity and the auxiliary cavity.
  • the inlet is connected.
  • the ink supply process of the ink cartridge is as follows. Under the action of the suction force of the printer's print head, the one-way valve is opened, and the ink in the auxiliary cavity is supplied through the valve and the ink supply port. During this process, the auxiliary cavity passes the one-way valve to the print head.
  • a box body with an ink cavity is provided with an ink supply port on one side of the box body, and an ink supply member is built in the ink supply port.
  • the box body is provided with a channel communicating with the atmosphere.
  • a channel communicating with the atmosphere is provided on the other side opposite to the ink supply port;
  • the ink cavity is composed of a main cavity and an auxiliary cavity which are communicated with each other, and an ink exhaust detection prism is arranged near the communicating portion between the main cavity and the auxiliary cavity,
  • a one-way valve is arranged between the adjacent side walls of the ink port, and the auxiliary cavity communicates with the ink supply port through the one-way valve.
  • the channel has a built-in one-way pressure relief valve, which is used to generate negative pressure in the ink supply chamber during ink filling.
  • the ink storage capacity of the ink cartridge can be increased by 30 to 60%.
  • the concept of two main and auxiliary ink chambers is used. When all the ink in the main chamber is used up, the ink end detection device will send out an ink end prompt signal. At this time, the user can consider whether to continue to use the auxiliary chamber according to the actual printing needs.
  • Reserve ink Print Due to the arrangement of the valve body center line consistent with the movement direction of the print head, the inertia force of the valve body is in the axial direction, the diameter of the wide body is small, the pressure bearing area is also small, and there is a certain thickness.
  • valve body will not adversely affect the switching function of m under the effect of inertia force; because the circumferential size of the one-way wide component is larger than the axial size, after the side-mounted solution is adopted, the one-way valve in the narrow ink cartridge becomes Possibly, it is only necessary to consider an appropriate processing technology, which will be described in the following specific embodiments of the present invention.
  • a unidirectional pressure relief valve is provided between the ink supply chamber and the ink chamber, which not only effectively prevents the ink dripping phenomenon when the ink cartridge is used in the printer with ink supply needle, but also can be easily removed during the ink cartridge manufacturing process.
  • FIG. 1 is a structural diagram of a first embodiment of the present invention
  • Fig. 2 is a cross-sectional view taken along the line AA of Fig. 1
  • Fig. 3 is a cross-sectional view taken along the line B-B of Fig. 1
  • 5 is a perspective view of the box body of the first embodiment
  • FIG. 6 is a perspective view of the box body of the first embodiment in another direction
  • FIG. 7 is a structural view of the second embodiment
  • FIG. 1 is a structural diagram of a first embodiment of the present invention
  • Fig. 2 is a cross-sectional view taken along the line AA of Fig. 1
  • Fig. 3 is a cross-sectional view taken along the line B-B of Fig. 1
  • 5 is a perspective view of the box body of the first embodiment
  • FIG. 6 is a perspective view of the box body of the first embodiment in another direction
  • FIG. 7 is a structural view of the second embodiment
  • FIG. 8 is a structural view of the third embodiment; D-D sectional view of Figure 8; Fig. 10 is a left side view of Fig. 8; Fig. 11 is a structural diagram of a fourth embodiment with a cover removed; Fig. 12 is a structural diagram of a unidirectional pressure relief of a fourth embodiment; and Fig. 13 is an exploded view of a fifth embodiment Fig. 14 is a perspective structural view of a box body of a fifth embodiment; Fig. 15 is a cross-sectional view of the fifth embodiment; Fig. 16 is a cross-sectional view of EE of Fig. 15; Fig. 17 is a cross-sectional view of FF of Fig. 15; Schematic diagram of another structure of the ink supply port used.
  • Embodiment 1 Referring to FIG. 1, this example is a technical solution for dividing an ink cavity into a main cavity and an auxiliary cavity according to the inventive concept.
  • the ink chamber is surrounded by the cover 2, the two end walls 6 and 16, the bottom surface 10 and the two side walls.
  • a vertical partition 15 separates the main chamber 3 into a substantially sealed auxiliary chamber 1.
  • the so-called basic sealing means that the chamber is only
  • a communication hole 14 provided at the bottom, and an ink exhaust detection prism 13 is arranged near the communication hole 14.
  • the entrance of the one-way valve chamber 12 is connected with the outer groove of the side wall of the box body and the auxiliary cavity ink supply channel surrounded by the sealing film.
  • the outlet of the one-way wide cavity 12 communicates with the ink supply port 7, and the sealing film 11 seals the process hole of the one-way valve cavity 12.
  • the ink supply port 7 is provided with an ink guide member 8 made of a dimensional material at the upper end, and a seal ring 9 is disposed at the lower end.
  • the seal ⁇ 9 is formed in a lip-shaped shape near the exit, which forms a ring-shaped seal contact with the ink supply boss of the printer. Sealing film 5.
  • the cover 2 has an air passage formed by a hole and a vent plug 4 that blocks the hole.
  • the vent plug 4 is a cylinder made of a polymer material and having a pore of 10 to 60 micrometers. This air passage can supply air to the ink cavity and maintain it. Constant pressure can also ensure that the ink does not flow out of the port when the ink cartridge in use is taken out, pollutes the printer or the operator, and the air-permeable plug 4 is also sealed by the sealing film 5.
  • the ink supply port 7 and the atmospheric channel are sealed by a sealing film 5 that is torn off when the ink cartridge is activated, and a one-way valve chamber outlet outside the side wall 17 of the box body communicates with the ink channel 18 that communicates with the ink supply port 7 and communicates with the ink to be supplied.
  • the left end of the one-way valve chamber 12 has an ink inlet passage 20 communicating with the ink chamber, and the lower right has an ink outlet passage 18 communicating with the ink supply port.
  • the valve is composed of a left body 21, a right body 23, and a valve body 22 therein. There are through holes on the left body surface, and the valve port of the valve body 22 made of elastic material is elastically pressed on the valve surface of the left body. There is a through hole in the middle of the right body 23, and the left and right bodies are combined with the one-way valve cavity to seal.
  • the sealing film 11 seals the process hole of the one-way valve cavity 12 and each ink channel groove located in the area.
  • the sealing film 11 seals the ink channels 25 constituting the auxiliary cavity to the one-way valve cavity.
  • the side wall 17 of the box body has an ink channel 25 connecting the auxiliary cavity and the one-way valve cavity 12, and an ink channel 18 connecting the one-way valve cavity 12 and the ink supply port 7, and the main cavity is separated by the ink supply port.
  • the bottom of the box body has a communication hole 14 between the main cavity and the auxiliary cavity.
  • the ink supply port 7 has a certain height in the main cavity, thereby forming a lower area 26.
  • Through holes 27, 28, through holes 31 of the ink channel 25 in the auxiliary cavity, and connecting holes 30 (14) in the auxiliary cavity, the ink end detection prism 29 is designed in the shape of a slit in the middle to prevent shrinkage during injection Causes a concave curvature of the detection prism surface.
  • this embodiment is basically the same as the first embodiment, except that the partial bottom surface in the main cavity is raised to a position substantially the same as the top surface of the one-way valve cavity, thereby eliminating the lower portion in the main cavity. Area 26 (see FIG. 6). In this way, the ink channel 19 used to communicate with the lower area is omitted, and the ink channel 25 is still the only ink channel leading to the inlet end of the one-way valve cavity.
  • the structure is correspondingly simplified and the manufacturing of ink cartridges is reduced.
  • Procedure. Embodiment 3 In the figures of this example, the same reference numerals as those in Embodiment 1 indicate the same structure, and details are not described below. For some models of printers, there is a high-precision ink exhaust detection photoelectric device.
  • FIG. 8 and its sectional view FIG. 9 and left view FIG. 10, which can save Go to the seal ring at the ink supply port 7, and directly supply ink by contacting the ink guide 8 with the print head.
  • a rubber seal ring 38 is also pressed between the left body 21 and the inner wall of the one-way valve chamber 12 of the one-way valve of this example.
  • the valve composed of the left body 21, the right body 23, and the wide body 22 The component does not need to be bonded to the inner wall of the one-way valve chamber 12, and has better assembly processability than the previous examples, and the sealing quality here is easier to be guaranteed.
  • Embodiment 4 Embodiment 4:
  • a one-way gang is provided between the ink chamber 1 and the ink supply port.
  • the one-way valve is composed of a bottom sleeve 37 with a through hole 35, a valve core 36 with a central through hole 39 and The gland 40 of the through hole 38 is combined, and the gang core 36 made of elastic material has its own elasticity, so that the head with the central through hole 39 is tightly pressed against the valve surface of the gland 40.
  • Ink supply chamber 34 is located between the valve face and the seal Space.
  • the one-way pressure relief valve 32 installed in the channel 33 is a tubular body with elasticity, and the open end is sealed and fixed to the channel 33.
  • the tube wall There is a slit 41 that runs through the inside and outside of the tube and is elastically closed by itself. Because the inner cavity of the tubular body communicates with the ink supply chamber, and the outer wall is in the ink chamber, when the pressure of the ink supply chamber is higher than the ink chamber pressure and the difference reaches a threshold value, the gap 41 opens, and the ink in the ink supply chamber flows back. Ink cavity, so the pressure is released. When the pressure in the two chambers is the same, the gap 41 is kept closed by its own elastic force; when the pressure in the ink chamber is higher than the pressure in the ink supply chamber, due to the pressure resistance of the tubular structure, the tangential component force in the tube wall makes The gap is closing tighter.
  • Embodiment 5 This is a preferred embodiment of the present invention.
  • the cover 46 has an air groove 45 communicating with the atmosphere.
  • the air groove can introduce the atmosphere into the air hole with the vent plug 44 and Entering the main cavity 57, there are an ink injection process hole and its hole seal 43 at the auxiliary cavity, and the membrane 42 is permanently fixed on the cover to form an air channel with the air groove 45.
  • the upper part of the membrane 49 seals the end of the airway, and the lower part seals the ink supply port, which is torn off when it is installed.
  • the ink chamber is divided into a main chamber 57 and an auxiliary chamber 58 by a partition in the box body 50.
  • the two chambers communicate through a hole at the bottom.
  • the auxiliary chamber 58 communicates with the check valve inlet through the ink tank 59, and the check valve outlet passes through the ink tank. 60 leads to the ink supply port.
  • the ink supply port has a built-in ink guide 51.
  • the one-way valve assembly is composed of a left body 55, a wide core 54, and a right body 52. It is pressed against the side of the box body 50 by a 0-shaped sealing ring 52.
  • the L-shaped film 56 the surface seals the valve cavity, the ink tank 59, the ink tank 60, and the other side seals the ink tank 59 along the channel extending to the bottom.
  • the open end of the one-way pressure relief valve 47 with a gap 48 is sleeved on the passage tube between the ink supply chamber and the ink chamber.
  • the right end of the ink tank 59 extends along the bottom of the box body and enters the inlet end of the one-way valve of the wide cavity 61, and the right end of the ink tank 60 enters the ink supply chamber.
  • the open end of the one-way pressure relief valve 47 with a slit 48 made of an elastic material is tightly sleeved on the passage tube 62.
  • the auxiliary cavity 58 and the main cavity 57 are separated by a partition plate 67, wherein the auxiliary cavity has a hole leading to the ink tank 59 in addition to a communication hole 66 at the bottom with the main cavity 57, and is completely closed.
  • the upward space of the ink supply port 65 is the ink supply chamber 63.
  • the chamber has a pressure relief channel 62 leading to the ink chamber.
  • the one-way pressure relief valve 47 is sleeved on the tube of the pressure relief channel 62.
  • the ink supply chamber 63 also has a vertical To the grid 64 and the ink guide 51, the top surface of the ink guide 51 is located in an environment full of ink, and the position of the entry hole of the ink tank 60 is also higher than the upper end surface of the ink guide 51.
  • the valve cavity 61 is a recessed area on one side wall of the box body, in which a check valve assembly is located, and the inlet end (left side) and the outlet end (right side) of the valve are unidirectionally sealed by an O-ring 52 The valve assembly is isolated from the outside. The valve cavity is sealed by a membrane 56. Referring to FIG.
  • the inner cavity of the entire ink cartridge that is, the main cavity 57, the auxiliary cavity 58, and the ink supply cavity 63 are completely sealed.
  • the needle of the negative pressure ink filling device is sealed from the hole seal 43 into the main cavity 57 for air extraction. It communicates with the main chamber 57 through the communication hole 66.
  • the air in the two chambers is first drawn out.
  • the ink supply chamber is relatively positive pressure
  • the check valve is tightly closed under this positive pressure
  • the internal pressure of the check valve 47 is high.
  • the tube made of elastic material expands in the circumferential direction and opens the gap on it, so that a negative pressure is also formed in the ink supply cavity.
  • the main and auxiliary can be conveniently filled with ink.
  • the three ink supply chambers can be filled with ink, and the process is simplified on the premise that the ink supply chamber 63 must be filled with ink.
  • the film 49 is torn off, so that the main cavity 57 communicates with the atmosphere, and the ink guide 51 is in contact with the print head. OK, the ink supply chamber ink is reduced, the ink supply chamber 63 is negative pressure relative to the main and auxiliary chambers.
  • the external pressure of the elastic tubular unidirectional pressure relief valve 47 is higher than the internal pressure, the tube is tightened in the circumferential direction, and the gap is tight.
  • the ink in the auxiliary chamber 48 is replenished into the ink supply chamber 63. Since the auxiliary chamber 58 is basically sealed, the consumed ink is continuously replenished from the main chamber 57 at this time, and the main chamber 57 is passed through the top of the cover. Airway tonic. When the ink in the main cavity is exhausted, the ink exhaust detection prism 68 located at the bottom of the main cavity will transmit the ink exhaust signal to the printer. At this time, the ink in the auxiliary cavity 58 can continue to be maintained for printing, and the channel 66 becomes the auxiliary cavity. 58 Qi of the Qi.
  • the present invention is not limited to the above five embodiments, and the structure can be further simplified on the basis of the above embodiments.
  • the ink cartridge is not removed and discarded until it is out of ink after it is installed in the printer, and it is rarely removed and reinstalled in the middle. Therefore, the solution provided in FIG. 18 eliminates the ink supply port 7
  • the inner ink guide can be changed to the upper end of the seal ring by the other end of the ink channel 18 at the outlet of the one-way valve chamber 12.
  • the printer cartridge provided by the present invention uses a one-way valve instead of a porous material to control the ink supply, which relatively increases the ink capacity of the cartridge.
  • the main and auxiliary cavity structure forms are used to solve the case of non-porous materials. After the printer sends out the ink end prompt signal, it continues to provide the problem of remaining ink.
  • the one-way wide-side solution improves the processability and ink supply stability.
  • the one-way pressure relief valve can solve the problem of ink dripping during installation and improve the filling during production. Craftability.

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  • Ink Jet (AREA)

Description

打印机墨盒 技术领域 本发明涉及喷墨记录器使用的供墨装置， 特别是喷墨 打印机用的墨盒。 背景技术 中国发明专利申请公开说明书 CN1252353A公开了名为 "墨罐、 包括该墨罐的总成、 及使用该总成的打印设备" 的 发明创造，通过说明书附图 5给出的一个实施例对其墨盒结 构作出了描述， 该墨盒为一由隔板隔成的双腔式墨盒， 一个 腔内有吸墨材料、供墨口和与大气连通的气孔； 另一腔为基 本封闭的液体存储腔，两腔在隔板的底部附近通过一条通道 连通。 当吸墨材料吸收的墨水由打印头消耗时， 液体存储腔 内墨液经两腔的连接通道供给吸墨材料，当液体存储腔在供 墨过程中腔内的负压逐渐增大时，来自气孔并穿过吸墨材料 的空气经连接通道补充到液体存储腔 ,降底液体存储腔内的 负压， 形成对于打印头基本上恒定的负压力， 从而使供给到 打印头的墨水保持稳定。 另外， 在液体存储腔的底部有一个 具有 90。顶角的等腰三角形形状的三角形棱镜， 其与打印机 中的光电装置一同构成墨尽检测装置，检测原理如下： 墨盒 内有足够的墨水时，入射光到达三角形一个腰所在面就折入 墨水并被吸收， 从而感光器无法接收到光信号； 当墨水消耗 到棱镜的反光点以下时，入射光经三角形两腰所在面两次反 射， 平行地到达感光器， 感光器收到光信号后， 打印机发出 墨尽提示信号。 应当指出的是， 在打印机发出墨尽提示信号时， 只说 明液体存储腔内无墨， 由于另一腔内吸墨材料的毛细作用，
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确 认 本 仍存有一定量的墨水， 所以， 收到墨尽提示信号后， 还可继 续进行一定量的打印， 这给打印机用户带来的好处是， 可以 对此后的打印进行安排， 例如， 接到墨尽信号后一般可继续 打印若干标准张， 如果需要打印的页数超过此数时， 宜更换 墨盒， 避免在多页打印中途更换墨盒。 另外， 本申请人曾研制一种墨盒， 主要有盒体、 盖、 气嚢座、 嚢体、 弹性固定圏组成气嚢组件； 阀压盖、 阀体、 滤网构成的单向阀组件， 还有位于供墨口内的密封圈， 其阀 体的运动方向即中心线与供墨口中心线平行。 上述第一种结构的墨盒存在一个最大问题， 是每只墨 盒的含墨量很低， 原因是吸墨材料通常采用海棉， 而海棉在 腔内占据很大的体积， 而用于盛墨的容积相对减小。 上述第二种结构的墨盒用于某些型号的打印机 ,取得了 良好的供墨效果。但对于一些高速喷墨打印机， 由于墨盒与 打印头同时高速作往复运动，在往复运动的折返点处有很大 的加速度， 这对于中心线与运动方向垂直的阀体来说， 周向 将受到惯性力的作用，由橡胶制成的阀体在轴向有一定的长 度， 阀体上的通孔在周向惯性力的作用下失稳并变形， 虽能 在该惯性力的消失后迅速恢复， 还是有一定量的墨在变形、 恢复的过程中流过了本应处于关闭状态的单向阀，造成过量 供墨， 从而使打印品质下降。 另外，对于某些种类的打印机， 如采用五色墨盒的彩色 喷墨打印机， 墨盒有着极窄的墨腔， 以至于这种单向阀布置 所需的某一方向上的尺度小于或略大于阀组件安装所需的 最小尺寸， 从而使墨盒无法装配或给装配带来困难， 在狭窄 的墨腔内装配带单向阀的墨盒， 产品合格率大幅下降。 还有，采用单向阀控制供墨的墨盒在单向阀出口与供墨 口之间有一定空间， 通常， 为防止墨液挥发， 未使用的墨盒 供墨口总是采用封膜或封盖等加以密封的，这对于某些采用 供墨针剌穿封膜进入供墨口种类的打印机，多由于单向阀反 向截止，其与供墨口之间的空间由于供墨针的进入而使该区 内的墨液受到快速挤压， 结果是墨液顺供墨针壁滴出， 污染 打印机或打印介质。 此外， 釆用负压灌墨法生产墨盒时， 由 于单向阀反向截止， 该区无法从位于盒盖的注墨口抽负压， 造成该区无法注墨或注墨不充分，一些打印头自吸力小类型 的打印机在使用中有供墨间断的现象。 发明内容 本发明的首要目的是设计一种可以取消海棉的墨盒结 构， 在保证基本恒定负压及供墨质量的前提下， 提高每盒墨 的额定含量值。 本发明的另一目的是解决墨腔无海棉情况下， 发出墨 尽提示信号后， 继续供定量墨液的问题。 本发明的再一个目的是， 解决在狭窄墨腔内单向阀组 件的装配问题和提高单向阀组件的工作稳定性。 本发明的还一个目的是， 解决采用单向阀结构的墨盒 可能出现的装机瞬间滴墨问题，以及提高这种墨盒制造过程 中的注墨工艺性。 为实现上述目的， 本发明采用一个带有墨腔的盒体， 在盒体的一个面上设置供墨口，并在盒体上设置与大气相通 的通道，优选在与供墨口相对的另一面上设置一与大气相通 的通道， 为在供墨过程中使墨腔内维持基本恒定的负压， 在 盒体内设置一个侧置的单向阀， 单向阀的入口端与墨腔连 通， 出口端与供墨口连通。 为解决墨尽提示信号显示后， 仍 有一定量的储备墨打印至墨尽的问题，将墨腔从原理上划分 为主腔和辅腔 ,在主腔和辅腔的连通部附近设置墨尽检测棱 镜， 辅腔与单向阀腔的入口端连通。 墨盒的供墨过程如下， 在打印机打印头自吸力的作用下单向阀开启，辅腔内的墨经 阀、 供墨口供出， 在此过程中， 辅腔一方面通过单向阀向打 印头供墨， 另一方面， 同时通过连通部得到主腔墨的补充， 辅腔内的墨液面并不降低， 当主腔内除辅腔之外的墨耗尽， 或者说仅有辅腔满墨时， 墨尽检测装置发出墨尽提示信号， 此后， 可由辅腔继续供墨打印一定量的印刷品。 本发明还有一种技术方案如下， 有一个带有墨腔的盒 体， 盒体一个面上有供墨口， 供墨口内置有导墨件； 盒体上 设置与大气相通的通道，优选在与供墨口相对的另一面上设 置一与大气相通的通道； 墨腔由相互连通的主腔和辅腔构 成， 在主腔与辅腔的连通部附近设置墨尽检测棱镜， 盒体与 供墨口相邻的侧壁间侧置一单向阀，辅腔通过单向阀与供墨 口连通，单向阀与供墨口之间形成的供墨腔有一向墨腔的泄 压通道， 通道内置有一个单向泄压阀， 用于注墨时供墨腔产 生负压。 由以上技术解决方案可见， 当供墨口内的墨被耗去一 定量时，单向阀出口端的压力低于入口端压力，单向阀导通， 墨腔内的墨通过单向阀流向供墨口，当单向阀两端的压力趋 于平衡时， 单向阀自动关闭， 墨腔流出墨后形成负压， 则由 大气通道引入的大气加以抵消，从而维持了墨腔内基本恒定 的压力， 保证了给打印机的正常供墨。 由于省去了海棉， 相 对增加了墨腔的容积， 墨盒贮墨量可提高 30 ~ 60%。 采用了主、 辅两个墨腔的构思， 当主腔内的墨液全部 用完时， 墨尽检测装置将发出墨尽提示信号， 此时， 用户可 根据实际打印需求考虑是否继续利用辅腔内的储备墨液再 打印。 由于采用阀体中心线与打印头的运动方向一致的布置 方式， 使阀体所受的惯性力在轴向， 阔体的直径较小， 承压 面积也小， 加上有一定的厚度， 这使得阀体在惯性力的作用 下不会对 m的开关功能造成不利影响；由于单向阔组件的周 向尺寸大于轴向尺寸， 采用侧置方案后，使在狹窄墨盒内加 单向阀成为可能, 只需考虑适当的加工工艺即可， 这将在以 下本发明的具体实施方案中述及。 由于在供墨腔与墨腔之间设置了一个单向泄压阀， 不 但有效防止了墨盒用于带供墨针类打印机装机时滴墨现象 发生， 同时， 在墨盒制造过程中可方便地将墨腔及供墨腔内 的气体抽出形成负压区，使随后的注墨工序中墨腔和供墨腔 内能够一次完成注墨。 附图的简要说明 图 1是本发明第一实施例的结构图； 图 2是图 1的 A-A剖视图； 图 3是图 1的 B- B剖视图； 图 4是图 1的 C- C剖视图； 图 5是第一实施例盒体的立体图； 图 6是第一实施例盒体另一方向的立体图； 图 7是第二实施例的结构图； 图 8是第三实施例的结构图； 图 9是图 8的 D- D剖视图; 图 10是图 8的左视图; 图 11是第四实施例除去盒盖的结构图； 图 12是第四实施例单向泄压阔的结构图； 图 13是第五实施例的结构分解图； 图 14是第五实施例盒体的立体结构图； 图 15是第五实施例的剖面图； 图 16是图 15的 E-E剖视图； 图 17是图 15的 F-F剖视图； 图 18 是实施例可采用的供墨口的另一结构形式示意 图。 实现本发明的最佳方式 以下结合几个实施例及附图对本发明作进一步详细地 说明。. 实施例一： 参见图 1 ,该例是根据本发明构思提供的将墨腔分为主 腔和辅腔的技术方案。 墨腔由盖 2、 两端壁 6及 16、 底面 10和两个侧壁围成， 垂向隔板 15将主腔 3隔出一个基本密 封的辅腔 1， 所谓基本密封是指该腔仅有一个设在底部的连 通孔 14 , 连通孔 14的附近设置一个墨尽检测棱镜 13 , 单向 阀腔 12的入口与盒体侧壁的外槽与封膜围成的辅腔供墨道 连通， 单向阔腔 12的出口与供墨口 7连通， 封膜 11密封单 向阀腔 12的工艺孔。 供墨口 7上端置有紆维物质制成的导 墨件 8 , 下端置有密封圈 9 , 密封圏 9近出口处为喇 p八形， 其与打印机供墨凸台形成环形线密封接触， 最外端是封膜 5。 盖 2上有一孔及封堵该孔的透气塞 4构成的大气通道， 透气塞 4采用高分子材料制成的内有 10〜60微米气孔的柱 体， 此大气通道能向墨腔补气维持恒定压力， 还能保证使用 中的墨盒取出时墨液不会自该口流出， 污染打印机或操作 者， 透气塞 4也由封膜 5密封。 参见图 2,供墨口 7和大气通道由启用墨盒时撕去的封 膜 5密封， 盒体侧壁 17外有单向阀腔出口与供墨口 7连通 的墨道 18、 连通被供墨口 7隔开的主腔 3下部两个区域的 墨道 19, 封膜 11同时也用于密封构成墨道 18、 19的槽。 参见图 3 , 单向阀腔 12左端有与墨腔相通的入墨通道 20, 右下部有与供墨口相通的出墨道 18, 阀由左本体 21、 右本体 23及其中的阀体 22构成, 左本体面上有通孔， 弹性 材料制成的阀体 22的阀口弹性地压在左本体的阀面上， 右 本体 23中部有一个通孔, 左右本体组合后与单向阀腔密封 配合，封膜 11密封位于该区域的单向阀腔 12工艺孔及各墨 道槽。 参见图 4,封膜 11密封构成辅腔至单向阀腔的墨道 25。 参见图 5,盒体侧壁 17上有连通辅腔与单向阀腔 12的 墨道 25, 连通单向阀腔 12与供墨口 7的墨道 18, 连通主腔 被供墨口隔开的两个下部区域的墨道 19, 盒体底部有主辅 腔间的连通孔 14。 参见图 6, 由于盒体两侧壁 17间距很窄， 供墨口 7在 主腔内有一定高度， 从而形成下部区域 26, 为使该区域的 墨不残留， 主腔内有墨道 19的通孔 27、 28, 辅腔内有墨道 25的通孔 31 , 辅腔内有连通孔 30 ( 14 ), 墨尽检测棱镜 29 设计成中间开缝的结构形状，是为了防止注塑时的收缩造成 检测棱镜镜面凹曲。 实施例二 参见图 7, 本例与第一实施例基本相同， 唯一不同的是 将主腔内局部底面升高到与单向阀腔顶面基本相同的位置， 从而消除了主腔内的下部区域 26 (参见图 6 ), 这样， 省去 了连通该下部区域用的墨道 19， 仍保持墨道 25是通向单向 阀腔入口端的唯一墨道， 结构相应简化， 减少了墨盒的制造 工序。 实施例三： 本例各图中与实施例一图中相同的件号表示相同的结 构， 以下不再赘述。 对于某些型号的打印机， 有着精度较高的墨尽检测光 电装置， 同时，打印头墨盒仓与墨盒的配合也很精确， 因此， 参见图 8及其剖视图图 9、 左视图图 10, 可以省去供墨口 7 处的密封圈， 而直接通过导墨件 8 与打印头的接触实现供 墨。 还有， 参见图 9, 本例的单向阀左本体 21与单向阀腔 12内壁间还压有一个橡胶密封圈 38, 这样， 由左本体 21、 右本体 23、 阔体 22构成的阀组件就无需与单向阀腔 12的 内壁进行粘接，较前几例有更好的组装工艺性， 此处的密封 质量也更容易得到保证。 实施例四：
参见图 11、 图 12 , 墨腔 1与供墨口间设有一个单向岡， 该单向阀由带有通孔 35的底套 37、 带有中心通孔 39的阀 芯 36及带有通孔 38的压盖 40组合而成， 弹性材料制成的 岡芯 36靠自身具有的弹性，使带有中心通孔 39的头部紧压 在压盖 40的阀面上。供墨腔 34是位于阀面和密封件之间的 空间。 在墨腔 1与供墨腔 34之间有一个泄压通道 33, 装在 通道 33中的单向泄压阀 32是一个具有弹性的管状体，其开 口端与通道 33密封固接， 管壁有一条贯穿管内外、 靠自身 弹性闭合的缝隙 41。 由于管状体的内腔与供墨腔相通， 外 壁处在墨腔中，当供墨腔压力高于墨腔压力且差值达到阈值 时， 缝隙 41张开， 供墨腔内的墨液流回墨腔， 从而压力得 以释放。 两腔内的压力相同时， 缝隙 41靠自身弹性力保持 密闭； 墨腔内的压力高于供墨腔的压力时， 由于管状体结构 的抗压特性， 在管壁内的切向分力使得缝隙愈加紧闭。本例 在生产墨盒过程中也同样适于采用负压灌墨法， 使供墨腔 34得以抽负压进行注墨。 实施例五： 这是本发明一个最佳实施例， 参见图 13 , 盒盖 46上有 与大气连通的气槽 45, 在墨盒使用时， 气槽可将大气引入 塞有透气塞 44的气孔并进入主腔 57, 在辅腔处有注墨工艺 孔及其孔封 43 , 膜 42永久性固定在盖上， 与气槽 45形成 气道。 膜 49上部封气道端头， 下部封供墨口， 装机使用时 撕去。 盒体 50内由一隔板将墨腔分隔成主腔 57和辅腔 58, 两腔通过底部的孔连通，辅腔 58通过墨槽 59与单向阀入口 相通， 单向阀出口通过墨槽 60通向供墨口， 供墨口内置有 导墨件 51， 单向阀组件由左本体 55、 阔芯 54、 右本体 52 构成， 其通过一个 0型密封圈 52压在盒体 50侧面的阀穴 中， L形的膜 56—面封阀穴、 墨槽 59、 墨槽 60, 另一面封 墨槽 59沿伸到底部的槽道。 带有缝隙 48的单向泄压阀 47 的开口端套在供墨腔与墨腔间的通道管上。 参见图 14,墨槽 59的右端在盒体底部沿伸并进入阔穴 61的单向阀入口端， 墨槽 60右端进入供墨腔。 弹性材料制 成带有缝隙 48的单向泄压阀 47开口端紧套在通道管 62上。 参见图 15, 辅腔 58与主腔 57由隔板 67分隔， 其中辅 腔除一个与主腔 57在底部的连通孔 66外还有一个通向墨槽 59的孔，此外完全密闭。供墨口 65向上的空间是供墨腔 63 , 腔内有通向墨腔的泄压通道 62, 单向泄压阀 47套在泄压通 道 62的管上， 供墨腔 63内还有竖向栅条 64和导墨件 51 , 这使导墨件 51 的顶端面位于充满墨液的环境中， 墨槽 60 的进入孔位置也高于导墨件 51的上端面。 参见图 16, 阀穴 61是在盒体一个侧壁上的凹区， 单向 阀组件位于其中， 阀的入口端（左侧）和出口端（右侧）被 O型密封圈 52在单向阀组件的外侧隔断。阀穴由膜 56所密 封。 参见图 17， 墨槽 60在盒体外壁上的部分为膜 56密封， 形成墨道， 其一端通入供墨腔 63 ,供墨腔 63上端的栅条 64 抵压在导墨件 51的顶面。 下面对照图 15简述制造过程中的抽负压灌墨及本墨盒 的工作原理， 弹性材料制成的孔封 43和透气材料制成的透 气塞 44塞入盖 46上的相应孔中后封上膜 42， 膜 56封堵装 入单向阀组件的阀穴及外壁上的墨槽， 膜 49上封气孔、 下 封供墨口 65。 此时整个墨盒的内腔， 即主腔 57、 辅腔 58、 供墨腔 63 被完全密封， 将负压灌墨装置的针头自孔封 43 剌入主腔 57进行抽气， 由于辅腔 58与主腔 57通过连通孔 66连通， 两腔内的空气首先抽出， 这时供墨腔相对为正压， 单向阀在此正压下紧闭，而单向泄压阀 47的内压高于外（主 腔 ）压， 弹性材料制成的管在周向膨胀并使其上的缝隙打 开，从而供墨腔内也形成负压， 这时再灌入墨液就能方便地 使主、 辅、 供墨三个腔均能入墨， 在供墨腔 63必需灌墨的 前提下使工艺简化。 装入打印机使用时， 撕去膜 49, 使主 腔 57与大气连通， 导墨件 51与打印头接触， 随着打印的进 行， 供墨腔墨液的减少， 供墨腔 63相对主、 辅腔呈负压， 此时， 弹性管状的单向泄压阀 47外压高于内压， 管在周向 紧缩， 缝隙紧闭， 而单向阀则打开， 辅腔 48 内的墨补入供 墨腔 63， 由于辅腔 58基本密封， 此时消耗的墨不断从主腔 57补入， 而主腔 57则通过盖顶的气道补气。 当主腔内的墨 液耗尽时， 位于主腔底部的墨尽检测棱镜 68将传递给打印 机墨尽信号， 此时， 可继续依靠辅腔 58内的墨液维持打印， 通道 66成为向辅腔 58补气的气道。 本发明不仅限于上述五个实施例， 可以在上述实施例 的基础上进一步简化结构。 参见图 18， 对于大多数使用工 况来说， 墨盒装入打印机后直到无墨才取出弃之， 中途取出 并再度装入的情况极少， 因此， 图 18提供的方案取消了供 墨口 7内的导墨件，单向阀腔 12出口处的墨道 18的另一端 改至密封圈上端即可。 事实上， 由于墨道的截面尺寸很小， 在墨液表面张力的作用下， 中途取出墨盒时， 只要不用力甩 或挤压， 在阻隔漏墨的设计要求下， 有无导墨件没有明显的 区别。 工业应用' [~生 本发明提供的打印机墨盒， 以单向阀取代多孔材料来 控制墨液供给， 相对提高墨盒的容墨量； 釆用主、 辅腔的结 构形式解决无多孔材料情况下， 打印机发出墨尽提示信号 后， 继续提供余墨的问题； 单向阔侧置方案改善了工艺性和 供墨稳定性；设置单向泄压阀可解决装机滴墨和改善生产过 程中灌装的工艺性。

Claims

权利要求
1、 打印机墨盒， 包括带有墨腔的盒体， 盒体一个面上 有供墨口； 盒体上有大气通道； 其特征在于： 墨腔由相互连通的主腔和辅腔构成， 在主腔与辅腔的 连通部附近设置墨尽检测棱镜； 盒体与供墨口相邻的侧壁间侧置一单向阀， 辅腔通过 单向阀与供墨口连通。
2、 根据权利要求 1所述的打印机墨盒， 其特征在于： 所述辅腔与主腔之间有一垂向隔板，主腔与辅腔的连通部为 设置在底部的连通孔， 连通孔位置低于墨尽检测镜反光点。
3、 才艮据权利要求 1或 2所述的打印机墨盒， 其特征在 于： 辅腔除连通孔外完全密闭。
4、 才艮据权利要求 1所述的打印机墨盒， 其特征在于： 供墨口内还设有导墨件。
5、 打印机墨盒， 包括通过盒盖上大气通道与大气相通 且充有墨水的墨腔； 其特征在于： 墨腔和供墨口之间设有单向阀； 单向阀和供墨口之间形成一个供墨腔， 供墨口置有密 封件； 供墨腔有一向墨腔泄压的通道， 通道口设有一个单向 泄压阀， 用于供墨腔向墨腔单向排泄墨液。
6、 打印机墨盒， 包括带有墨腔的盒体， 盒体一个面上 有供墨口， 供墨口内置有导墨件； 盒体位于供墨口相对的面上有大气通道； 其特征在于： 墨腔由相互连通的主腔和辅腔构成， 在主腔与辅腔的 连通部附近设置墨尽检测棱镜； 盒体与供墨口相邻的侧壁间侧置一单向阔， 辅腔通过 单向阀与供墨口连通； 单向阀与供墨口之间形成的供墨腔有一向墨腔的泄压 通道， 通道口设有一个单向泄压阀， 用于注墨时供墨腔产生 负压。
7、 根据权利要求 6所述的打印机墨盒， 其特征在于： 导墨件位于供墨腔内靠近供墨口一端，来自辅腔的供墨通道 入口位于导墨件的上端。
8、 根据权利要求 6或 7所述的打印机墨盒， 其特征在 于： 所述单向泄压阀由一与通道连接的弹性薄壁体构成， 壁 上有一贯穿壁内外的缝隙。
9根据权利要求 8所述的打印机墨盒， 其特征在于： 所 述弹性薄壁体的内侧与供墨腔连通， 外侧位于墨腔内。
10、 根据权利要求 8所述的打印机墨盒， 其特征在于： 所述弹性薄壁体为一圆柱管,所述缝隙的长度方向与圆柱管 的轴线平行。
PCT/CN2002/000723 2001-10-31 2002-10-15 Cartouche d'encre pour imprimante WO2003037634A1 (fr)

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EP02774262A EP1440805B1 (en) 2001-10-31 2002-10-15 An ink cartridge for a printer
JP2003539947A JP2005506920A (ja) 2001-10-31 2002-10-15 プリンタ用インクカートリッジ
DE60216800T DE60216800T2 (de) 2001-10-31 2002-10-15 Tintenpatrone für einen drucker
US10/493,992 US7246891B2 (en) 2001-10-31 2002-10-15 Ink cartridge for a printer

Applications Claiming Priority (6)

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CN 01265494 CN2512603Y (zh) 2001-10-31 2001-10-31 打印机墨盒
CN01265494.9 2001-10-31
CNB011423404A CN1188284C (zh) 2001-12-11 2001-12-11 打印机墨盒
CN01142340.4 2001-12-11
CN02115259.4 2002-05-23
CN 02115259 CN1211210C (zh) 2002-05-23 2002-05-23 墨盒

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ES2275916T3 (es) 2007-06-16
EP1440805B1 (en) 2006-12-13
EP1440805A1 (en) 2004-07-28
ATE348006T1 (de) 2007-01-15
US20050068387A1 (en) 2005-03-31
JP2005506920A (ja) 2005-03-10
US7246891B2 (en) 2007-07-24
DE60216800T2 (de) 2007-10-04
DE60216800D1 (de) 2007-01-25
WO2003037634A8 (fr) 2004-06-17

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