TW483836B - Ink-jet cartridge - Google Patents

Abstract

An ink-jet cartridge being used in a thermal ink-jet printer is disclosed. The ink-jet cartridge includes a housing for storing the ink, a printing-head with a plurality of orifices, allowing the ink to be jetted therethrough when the thermal ink-jet printer is printing, and a pressure-adjusting device disposed in the housing for regulating a back pressure of the interior of the housing, wherein the pressure-adjusting device includes a first opening fixed on an upper portion of the housing and exposed to an ambient atmosphere, and a second opening disposed at a bottom of the interior of the housing and having at least one regulating hole thereon. Each regulating hole has a cross-sectional area being smaller than that of the first opening for maintaining the back pressure when the ink-jet cartridge is inverted.

Description

483836 索號 88108798 曰483836 cable number 88108798

年 」1 五、發明說明（1) [發明之相關領域] 本發明係一種用於喷墨印表機的供墨卡匣，·特別是一 種供墨卡匣内之壓力調整機構，該供墨卡匣可適應不^環 J變化以防止漏，且當供墨卡E内的墨水減少時：仍‘： 整供墨卡匣内的为壓（b a c k p r e s s u r e )使墨水可頻利充 出0 [習知技術] 市場上電腦印表機一般約可分為三種：點矩陣印表 機、喷墨式印表機以及雷射印表機。點矩陣印表機雖然严 格便宜，然而其列印速度緩慢、列印品質不佳卻成為其致 ^傷，以致於無法與喷墨或雷射印表機在市場上互相二 爭，因而使用範圍僅限於特定範圍。現下市面上多= 墨或雷射印表機，該二者之性能比較下各有優 、 :墨：表機賭買價格較為低廉惟其列印成 ；：： :較:：宜雷射：：機高，•其列印成本二 (因μ雷射印表機單列印 用）。反之，對噴墨印表機而古1冋^印則列印輸出使 印且由於其圖素躯 —，13 ，、可用於黑白或彩色列 因此對—^使用+又巾田增加.（由3 0 0dpi至1 2 0 0dpi )， 供墨卡昆空間，如何達到可徂，牦加。然而，在有限的 境下保持供墨順暢以降低列万、取多墨水且在各種使用環 印表機亟待解決之問題。 及耗材成本，確是當前噴墨 為使有限的供墨卡匣空 單的設計是將墨水灌滿 1 7、具有最多的墨水量，最簡Years "1 V. Description of the Invention (1) [Related Fields of the Invention] The present invention relates to an ink supply cartridge for an inkjet printer, particularly a pressure adjustment mechanism in the ink supply cartridge. The cartridge can be adapted to the change of the ring J to prevent leakage, and when the ink in the ink supply card E is reduced: still ': The backpressure in the entire ink supply cartridge allows the ink to be replenished frequently. [Knowledge Technology] Computer printers in the market can generally be divided into about three types: dot matrix printers, inkjet printers, and laser printers. Although the dot matrix printer is strictly cheap, its slow printing speed and poor print quality have become its injuries, so that it cannot compete with inkjet or laser printers in the market. Therefore, the range of use Limited to a specific range. Currently, there are many printers on the market = ink or laser printers. The performance of these two printers is better than each other.:: Ink: printers are cheaper to buy, but they are printed; The machine is high, and its printing cost is two (because μ laser printer is used for single printing). Conversely, for inkjet printers, the ancient 1 冋 ^ print is printed out and printed because of its pixel body—, 13, which can be used for black and white or color printing, so the use of ^ ++ is increased. 300 dpi to 12 0 dpi), how to provide space for mekakun. However, in a limited environment, keeping the ink supply smooth to reduce the number of inks, take multiple inks, and urgently need to solve the various problems in the use of environmental printers. And consumable costs are indeed the current inkjet. In order to make the limited ink supply cartridge empty, the design is to fill the ink 17 with the most ink volume, the simplest

$ 4頁 一 ' ’然而影響供墨變因很多而不 483836 案號 88108798 五、發明說明（2) 易控制，例如墨水使用時液面降低造成液壓的變化；溫 度、墨水組成成分以及溶液雜質對黏滯係數、表面張力的 影響；以及供墨卡匣中空氣壓力 '環境大氣壓力及溫度的 影響，而且在力平衡之影響遠大於流體表面張力的情況 下，任何一變因的少許變化都會破壞其平衡。 在f種習知技術中，美國第5, 4〇9, 134號專利，其在卡匣 内提供一與大氣相通之氣囊及彈性裝置藉以調整卡匣内背 壓之平衡狀態，及美國第5, 6 0 0, 35 8號專利，其係在供墨 卡匣底部設置一不漏墨水之透氣閥，藉此當保存或使用溫 度增加時，該透氣閥可由壓差而注入空氣進而防止墨水不 必要之滲漏。然而，前述習知技術之結構均過於複雜且 、、且件太多造成製造成本大幅上升。 =外，亦有在供墨卡匣的空間内裝入具吸水力的材料（如 ^綿）’如圖-所示。此種改良，雖然可以對墨水外漏的 、失加以彌補，然而卻會發生墨水量少且無法完全用盡 有填充墨水的弊病。 2 .墨+ * f減少了。再者，由於海綿21等吸水材料呈有$ 4Page 1 '' However, there are many factors that affect the ink supply but not 483836 Case No. 88108798 V. Description of the invention (2) Easy to control, such as the change in hydraulic pressure caused by the lowering of the liquid level when the ink is used; temperature, ink composition and solution impurities The effect of viscosity coefficient and surface tension; and the effect of air pressure in the ink supply cartridge on the ambient atmospheric pressure and temperature, and if the effect of force balance is much greater than the surface tension of the fluid, any small change in any factor will destroy It's balanced. Among the f conventional technologies, U.S. Patent No. 5,408,134, which provides an airbag and elastic device in the cassette to adjust the balance of the back pressure in the cassette, and the fifth in the United States. No. 6, 0, 35, patent No. 8, which is provided with a breathable valve that does not leak ink at the bottom of the ink supply cartridge, so that when the storage or use temperature increases, the breathable valve can inject air from the pressure difference to prevent ink from Necessary leakage. However, the structures of the aforementioned conventional technologies are all too complicated and complicated, and too many pieces cause a significant increase in manufacturing costs. = In addition, there is also a water-absorbing material (such as ^) installed in the space of the ink supply cartridge 'as shown in Figure-. Although this kind of improvement can make up for the leakage and loss of ink, it will cause the disadvantage that the amount of ink is low and the ink cannot be completely used up. 2. Ink + * f is reduced. Moreover, since the water-absorbing material such as the sponge 21 presents

如圖一所示，當供墨卡匣2中填充诲綿21之後，由於 21具有強大的吸水力’可以將墨水辦緊吸附在海 ’防止墨水22向下外漏。目& ’在力平衡時。由 、=2丨的吸附能力大於墨水22的表面張力，因此，其平衡狀 ^不致輕易破壞。在此情況之下，透過海綿21提供之吸 ，供墨卡匣2中的墨水2 2便不致輕易的外漏，可以' •水22滲漏及保持固定之供墨壓力。然而由因供墨卡匣2 的容量空間有限，因此如果填充海绵21於内，則 483836As shown in Fig. 1, after the ink supply cassette 2 is filled with the cotton 21, the 21 has a strong water absorption force, which can tightly absorb the ink to the sea, and prevent the ink 22 from leaking downward. Head & ’When the force is balanced. Since the adsorption capacity of, = 2 丨 is greater than the surface tension of the ink 22, the balance ^ will not be easily destroyed. In this case, the ink 22 provided in the ink supply cartridge 2 will not leak easily through the suction provided by the sponge 21, and the water 22 can leak and maintain a fixed ink supply pressure. However, since the capacity space of the ink supply cassette 2 is limited, if the filling sponge 21 is inside, then 483836

曰 修正 克服海綠在墨水22將用磐之際’會有部份的墨水無法 ，吸附力而被保持在卡匣内，導致含有無法利用的 在ί二ί如一般供墨卡匿原先可以填充4〇g墨水的空間， ===海線之後只能填充30g左右的墨水量，但此3〇g的墨 二=於海綿吸附力的效應’導致會有"g左右的墨水無 τ南丨田，因此原先理論上能夠利用40g的墨水，事實上真 可惜。到的只有23-24g而已，在空間及墨水的利用上至為The correction was made to overcome the sea green. When the ink 22 will be used, there will be a part of the ink that cannot be used, and the adsorption force will be held in the cassette, resulting in the unusable ink supply. The space of 40 g of ink, === can only be filled with about 30 g of ink after the sea line, but this 30 g of ink 2 = the effect of the sponge's adsorption force will cause there will be no ink of about g丨 Tian, so it was really a pity that 40g of ink could be used in theory. Only 23-24g is available, and it is the most efficient in terms of space and ink.

Q 由於海綿不但具有吸水力’且由於其組織結構 非旦墨水即便空氣等都會被吸附。因此，海 唯盔二墨卡匣供墨的同時，會在其内殘留大小氣泡，若氣 供：、順利排出’貝在列印之時，遇有氣泡便會導致墨水 ς二『順暢，而導致列印中斷或是列印顏色深淺不一而 低列印品質。 胡敕=以，本發明之主要目的係提供一種供墨卡匣之壓力 構，根據本發明之壓力調整機構可使供墨卡昆在不 而1 Ϊ ί Ϊ化（異常的溫度及壓力下）不致造成墨水渗漏 日:之另一目的在提供一種供墨卡匣之壓力調整機構， ;^ f水液面降低時，仍能保持供墨卡㈣的背壓在平 衡狀怨俾使喷墨印表機使用時供墨平順。 二月之再目的在提供一種簡化之壓力調整機構，夢 較少的材料及更低製造成本以提高供… 冓内= [發明概述]Q Because the sponge not only has water absorption ', but also because of its structure, non-denier ink is adsorbed even by air. Therefore, when the Haiwei Helmet II ink cartridge supplies ink, large and small bubbles will remain in it. If the air supply: smoothly discharges the ink when printing, the occurrence of air bubbles will cause the ink to flow smoothly, and Causes printing to be interrupted or prints in different shades and print quality is low. Hu Zhe = The main purpose of the present invention is to provide a pressure mechanism for the ink supply cassette. According to the pressure adjusting mechanism of the present invention, the ink supply can be made more than 1% (under abnormal temperature and pressure). Does not cause ink leakage: Another purpose is to provide a pressure adjustment mechanism for the ink supply cartridge; when the water level is lowered, the back pressure of the ink supply card can be maintained in a balanced state to make inkjet When using the printer, the ink supply is smooth. The purpose of February is to provide a simplified pressure adjustment mechanism that dreams of less materials and lower manufacturing costs to increase supply ... 冓 内 = [Overview of the Invention]

第6頁 483836 j號 88108798 五、發明說明（4) 曰 本發明係在供墨卡民内 機構係為一中空構造，其— 則具有與墨水接觸之細微開 藉此調整卡1£内之背壓達到 設置一壓力調整機構，該調整 端形成通氣口通大氣而另一端 孔並形成在供墨卡g之底部， 平衡狀態。 [發明之詳細說明] 固參考圖二/圖二顯示本發明供墨卡厘1之剖面 圖，I供墨卡匣1係用於提供熱氣泡式喷墨印表機 (Thermal Ink Jet Printer)之列印墨水，其包括外殼 11、壓力調整機構12、暮火ία哈里η 曰士於 佩傅u墨水1 3及喷墨頭1 4。值得注意的 疋，本發明之供墨卡匣丨並未包括任何吸附物質（如·海錦） 俾能在有限之卡Ε空間提供最大墨水量且在供墨卡匣比 内4八有預留空間1 5以提供喷墨卡匣列印時的背壓（該 二間具有一初始壓力ρ 〇及體積ν 〇 )。如業界所熟知之噴墨 印表機列印方式，前述喷墨頭丨4將視需要局部加熱供墨卡 匣1内的墨水1 3使其蒸發而由噴墨頭丨4之孔喷出而完成列 印之工作。進一步參考圖二可知，本發明之供墨卡匡工設 置壓力調整機構1 2，在本實施例中該壓力調整機構1 2係 以1工細官之形恕呈現，其細管長度大於前述供墨卡匣1 之高度Η因此該機構12之一端形成通氣口 121連通大氣壓力 並固定於供墨卡匣！之頂部而細管則可垂懸於該供墨卡匣—i 之底部。前述壓力調整機構12之管徑約在〇.5隨到2關之 ，，其管徑面積遠小於供墨卡E丨的截面積且因此在該細 官内可形成墨水的毛細現象（capilarity)。如習知使用經 驗得知，於墨水匣輸送時常會發生倒置現象，而該壓力調 483836 -__案號 8810870«_年 月__L··- 五、發明說明（5) 整機構1 2之另端開口 1 2 3利用與墨水所形成的毛細現象， 於該另端開口沖壓處形成一墨水段，其功用如同止流閥， 以防止空氣經由該通氣口 1 2 1充填至墨匣負壓空間，破壞 既有之平衡狀態，而導致滲漏，該壓力調整機構1 2係呈空 心管狀而垂懸於供墨卡匣1噴墨頭1 4側之底部並具有至少 一個開孔1 2 3，在較佳實施例中該開孔1 2 3之孔徑可為 丄關、〇· 15mm或〇· 2mm，其中該開孔123可經由壓皺中空 管之開口、衝壓或射出成形等習知加工方法直接形成在 空、細管之一端，m卜μ尤制洁您皮μ甘达 0.1mm 細 :ί:管：：端中Ξ此”造程序上甚為簡化而不至ϋ 中空細管亦可直接由金屬或塑膠算^ 成而通氣口 12丨固定在供墨卡匣頂部。 /寺材料形 習知之供墨卡匣在製造完成後通 而供販銷售販賣。然而，在前述運二，:、费封並運送 的變因（如：溫度或壓力）難以 5 、丁子過程中， 可知： J根據理想氣體方程式 PV=nRT 》 其中P:壓力 V:體積 η:氣體莫耳常數 R :氣體常數 Τ :溫度 一〜 * Λ度开咼呀，習知枯分-+ 該空間1 5之初始壓力Ρ〇亦隨之拎=供墨卡匣會導至 或者，當大氣壓力Patm下降時::=墨水受力而渗g P0未改變，同時會造成墨水因=封空間1 5内之 -—如圖 111 $ 8頁 483836 _ 案號.皇1.〇卿8 年 月 日 g_ 五、發明說明（6) 示，本發明之供墨卡匣1在製造完成後，由於預留空間i 5 的初始壓P 0及大氣壓力p a t m間的壓差及壓力調整機構1 2内 的細管毛細現象’墨水1 3會流入細管内並達成力平衡狀 態。如果溫度升高造成該空間1 5之初始壓力p 〇增加，由於 開孔1 23的直徑（約在〇·;[〜〇· 2mm)遠大於喷墨頭η的喷墨 孔，增加的壓差會導致墨水1 3流入壓力調整機構丨2的細管 内使細管内墨水升高而達到另一個平衡狀態；同樣地，如 果大氣麼力P a t m下降時，壓差的改變亦會導致墨水1 3流入 壓力調整機構1 2的細管内墨水升高而達到另一個新的平衡 狀態。因此，本發明的供墨卡匣丨並不會因環境因素的改 變而導致墨水滲漏的問題。 當習知之供墨卡匣裝設在喷墨印表機使用時，由於墨 水消耗減少而導致墨水液面下降至^的高度且該空間丨5的 體積增加為VI。根據理想氣體方程式可知，該空間丨5内的 初始壓力P0將下降到P卜在大氣壓力Patni不改變的狀態 下，P1與Patni之差值擴大而造成供墨卡昆内的墨水無法流 出V致供墨不順。繼續參考圖五，本發明之供墨卡匣工在 墨水1 3下降時，由於開孔i 2 1的直徑遠大於噴墨頭i 4的喷 墨孔’因此原先流入壓力調整機構12之墨水將先流回供墨 卡匣1内以達到另一個平衡。如果墨水丨3之液面進一步下 降時，大氣壓力Patm遠大於卡匣内空間15的壓力ρι造成空 氣被壓縮進入該空間15内，如此將使前述空間15内的壓力 PLL升而使該空間15的壓力P1與大氣麗力卜恸差值減少進 而墨水1 3可順利由喷墨頭丨4的喷墨孔流出。 圖五顯示本發明之另一實施例，其中該壓力調整機構 483836 --~—年 月___ 五、發明說明（7) 1 2係與外殼i丨一體形成。在該實施例中，壓力調整機構1 2 可在模造供墨卡匣1之外.殼11同時一併形成具有開孔1 2丨的 細管構造，如此矸避免製造供墨卡匣時增加的製程及成 本，並可達到同樣之效果。 [圖式元件符號說明] 1供墨卡匣 1 1 外殼 12 壓力調整機構 121 開孔 13 墨水 14 喷墨頭 空間 [發明效果] 在詳細說明本發明供墨卡匣之較佳實施例之後，熟悉 該項技術人士可清楚的瞭解，並在不脫離下述申請專利範 圍與精神下可進行各種變化與改變。 根據本發明實施的供墨卡匡，將可簡化製遠的程序而提升 生產效率，且供墨卡匣的墨水容量可大幅增加以降低喷墨 印表機的列印成本。 綜上所述，本發明具有諸多優良特性，炎解決習知技 術在實務上與應用上之缺失與不便，提出有妹之解決方 法，完成實用可靠之裝置，進而達成新穎真附經濟效益之| 價值，實已符合發明專利之申請要件，懇讀鈎局能予詳審 並賜准專利權益保障，以優惠民生實感德夜。Page 6 483836 j No. 88108798 V. Description of the invention (4) The invention is a hollow structure in the ink supply civil system, which-it has a slight opening to contact the ink to adjust the back of the card. A pressure adjustment mechanism is set at the pressure, and the adjustment end forms a vent hole to the atmosphere and the other end hole is formed at the bottom of the ink supply card g in a balanced state. [Detailed description of the invention] A solid cross-sectional view of the ink supply caliper 1 of the present invention is shown with reference to FIG. 2 / FIG. 2. The ink supply cassette 1 is used to provide a thermal bubble jet printer (Thermal Ink Jet Printer). The printing ink includes a casing 11, a pressure adjusting mechanism 12, a twilight, a, a, h, and a yupeifu ink 13 and an inkjet head 14. It is worth noting that the ink supply cassette of the present invention does not include any adsorbed substance (such as · Hai Jin). It can provide the maximum ink volume in a limited space of the card E and there is a reserved space within the ink supply cassette ratio. 15 to provide the back pressure of the inkjet cartridge during printing (these two have an initial pressure ρ 〇 and volume ν 〇). As the printing method of inkjet printer well known in the industry, the aforementioned inkjet head 4 will locally heat the ink 1 3 in the ink supply cassette 1 as needed to evaporate and eject from the holes of the inkjet head 4 Finish printing. Further referring to FIG. 2, it can be known that the ink supply card of the present invention is provided with a pressure adjustment mechanism 12. In this embodiment, the pressure adjustment mechanism 12 is presented in the form of a fine workman, and the length of the thin tube is longer than the ink supply card. The height of the cassette 1 Η Therefore, an air vent 121 is formed at one end of the mechanism 12 to communicate the atmospheric pressure and is fixed to the ink supply cassette! The thin tube can be hung on the bottom of the ink supply cartridge-i. The diameter of the aforementioned pressure adjustment mechanism 12 is about 0.5 to 2 and its diameter is much smaller than the cross-sectional area of the ink supply card E 丨 and thus the ink capillarity can be formed in the thin tube. . As is known from the experience of use, the inversion phenomenon often occurs when the ink cartridge is transported, and the pressure adjustment is 483836 -__ Case No. 8810870 «_year month__L · ·-V. Description of the invention (5) The whole mechanism 1 2 of The other opening 1 2 3 utilizes the capillary phenomenon formed with the ink to form an ink segment at the punching point of the other opening. Its function is like a check valve to prevent air from filling through the vent 1 2 1 to the negative pressure of the ink cartridge. The pressure adjustment mechanism 12 is a hollow tube that hangs from the bottom of the inkjet head 1 4 side of the ink supply cartridge 1 and has at least one opening 1 2 3 In a preferred embodiment, the hole diameter of the opening 1 2 3 may be Tongguan, 0.15 mm, or 0.2 mm, where the opening 123 may be formed by embossing a hollow tube, punching, or injection molding. The processing method is directly formed on one end of the hollow and thin tube. Mbu μ especially makes your skin μ Ganda 0.1mm thin: ί: tube :: end in the end. The process is even simpler than hollow tube. It is directly made of metal or plastic, and the vent 12 丨 is fixed on the top of the ink supply cassette. / 寺 材料 形It is known that the ink supply cartridges will be sold for sale after the manufacture is completed. However, in the aforementioned transportation, it is difficult to seal and transport the variables (such as temperature or pressure). 5. In the process of ding, we can know that: J The ideal gas equation PV = nRT》 where P: pressure V: volume η: gas Moore constant R: gas constant T: temperature one ~ * Λ degrees open, it is known that the dry content-+ the initial pressure P of the space 15 〇 Followed by 拎 = the ink supply cartridge will lead to or when the atmospheric pressure Patm decreases :: = the ink is leaking g g0 has not changed, and at the same time it will cause the ink to be within 5 of the sealed space-as shown in the figure 111 $ 8 pages 483836 _ Case No. Emperor 1.〇qing 8 years g_ Five, the description of the invention (6) shows that after the manufacturing of the ink supply cartridge 1 of the present invention, due to the initial pressure of the reserved space i 5 The pressure difference between P 0 and atmospheric pressure patm and the capillary capillary phenomenon in the pressure adjustment mechanism 12 'ink 13 will flow into the thin tube and reach a state of force equilibrium. If the temperature increases, the initial pressure p 15 of the space 15 will increase. Because the diameter of the openings 1 to 23 (about 0 ·; [~ 〇 · 2mm) is much larger than the inkjet of the inkjet head η The increased pressure difference will cause the ink 13 to flow into the thin tube of the pressure adjustment mechanism, and the ink in the thin tube will rise to reach another equilibrium state. Similarly, if the atmospheric pressure Patm drops, the change in pressure will also change. As a result, the ink in the thin tube flowing into the pressure adjustment mechanism 12 rises and reaches another new equilibrium state. Therefore, the ink supply cartridge of the present invention does not cause the problem of ink leakage due to changes in environmental factors When the conventional ink supply cartridge is installed in an inkjet printer, the ink level is reduced to a height of ^ due to the decrease in ink consumption, and the volume of the space is increased to VI. According to the ideal gas equation, it can be seen that the initial pressure P0 in this space 5 will drop to Pb. In the state where the atmospheric pressure Patni does not change, the difference between P1 and Patni expands, causing the ink in the ink supply Kakakun to flow out of V. The ink supply is not smooth. With continued reference to FIG. 5, when the ink supply cartridge worker of the present invention drops the ink 13, the diameter of the opening i 2 1 is much larger than the ink ejection hole of the inkjet head i 4, so the ink that originally flows into the pressure adjusting mechanism 12 will First flow back into the ink supply cassette 1 to achieve another balance. If the liquid level of the ink 3 is further lowered, the atmospheric pressure Patm is far greater than the pressure ρm of the space 15 in the cassette, causing air to be compressed into the space 15. This will increase the pressure PLL in the space 15 and increase the space 15 The difference between the pressure P1 and the atmospheric pressure is reduced, so that the ink 1 3 can smoothly flow out of the inkjet hole of the inkjet head 4. Figure 5 shows another embodiment of the present invention, in which the pressure adjustment mechanism 483836-~-year month ___ 5. Description of the invention (7) 1 2 is integrated with the casing i 丨. In this embodiment, the pressure adjustment mechanism 12 can be outside the molded ink supply cassette 1. The shell 11 simultaneously forms a thin tube structure with an opening 1 2 丨, thus avoiding the additional process of manufacturing the ink supply cassette And cost, and can achieve the same effect. [Description of Symbols of Schematic Elements] 1 Ink supply cassette 1 1 Housing 12 Pressure adjustment mechanism 121 Opening hole 13 Ink 14 Ink head space [Effects of the invention] After explaining the preferred embodiment of the ink supply cassette of the present invention in detail, familiarize Those skilled in the art can clearly understand and can make various changes and modifications without departing from the scope and spirit of the patent application described below. The ink supply card according to the present invention can simplify the manufacturing process and improve production efficiency, and the ink capacity of the ink supply cassette can be greatly increased to reduce the printing cost of the inkjet printer. To sum up, the present invention has many excellent characteristics. It solves the shortcomings and inconveniences of the conventional technology in practice and application. It proposes a solution to the problem, completes a practical and reliable device, and achieves a novel and truly economic benefit. The value really meets the application requirements for invention patents. Sincerely reading the bureau can examine it in detail and grant quasi-patent rights protection to give people a sense of real life.

第10頁 483836 ___ 案號88108798_年月日 修正_ 圊式簡單說明 [圖式之簡單說明] 本發明之供墨卡匣及其優點與特徵將從下列詳細說明 及附圖進一步的瞭解。 圖一為習知技術之供墨卡匣，其係使用海綿用以吸附墨 水0 圖二為本發明之一實施例，其中壓力調整機構係以中空 管之形態表現。 圖三為圖二中空管末端及沿該管長軸之剖面的部份放大 圖。 圖四為本發明之供墨卡匣在列印時，墨水液高降低之示 意圖。 圖五為本發明之另一實施例，其中前述壓力調整機構係 與供墨卡匣壁一體形成。Page 10 483836 ___ Case No. 88108798_ Year Month Day Amendment _ Brief Description [Simplified Description of Drawings] The ink supply cartridge of the present invention and its advantages and features will be further understood from the following detailed description and accompanying drawings. Fig. 1 is a conventional ink supply cartridge using a sponge to absorb ink. Fig. 2 is an embodiment of the present invention, in which the pressure adjusting mechanism is in the form of a hollow tube. Figure 3 is an enlarged view of the end of the hollow tube of Figure 2 and a section along the long axis of the tube. Fig. 4 is a schematic diagram showing the ink level reduction of the ink supply cartridge of the present invention during printing. Fig. 5 is another embodiment of the present invention, wherein the aforementioned pressure adjustment mechanism is integrally formed with the ink supply cartridge wall.

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Claims (1)

483836 __ 案號88108798 年 月 日 條正 _ 六、申請專利範圍 1. 一種供墨卡匣，係用於熱氣泡式喷墨印表機，其包含： 外殼，係收容墨水於其中以提供前述印.表機列印； 喷墨頭，包含複數個喷墨孔以供加熱之墨水依需求而喷 濺在紙張上；以及， 一壓力調整機構，該壓力調整機構係呈中空管狀以收容 墨水於其中，其一端具有通氣口與空氣接觸，而另端具 有至少一個開口與墨水接觸，其中前述壓力調整機構之 通氣口端係固定在該供墨卡匣外殼上，且前述壓力調整 機構之另端開口端則位於與喷墨頭同側之供墨卡匣底 部。 2. 如申請專利範圍第1項所述之供墨卡匣，其中前述壓力 調整機構之通氣口係固定在該供墨卡匣之頂部。 3. 如申請專利範圍第1項所述之供墨卡匣，其中前述壓力 調整機構之中空管狀截面積甚小藉此可造成墨水的毛細 現象。 4. 如申請專利範圍第1項所述之供墨卡匣，其中前述壓力 調整機構之另端開孔截面積遠大於喷墨頭之喷墨孔截面483836 __ Case No. 88108798 Article 6_ Patent Application 1. An ink supply cassette for a thermal bubble inkjet printer, which includes: a housing for containing ink therein to provide the aforementioned printing Printer printing; inkjet head, including a plurality of inkjet holes for heating ink to be sprayed on the paper as required; and, a pressure adjusting mechanism, the pressure adjusting mechanism is a hollow tube to contain the ink therein One end of the pressure adjustment mechanism is fixed on the ink supply cartridge casing, and the other end of the pressure adjustment mechanism is open to the air, and the other end has at least one opening to contact the ink. The end is located at the bottom of the ink supply cartridge on the same side as the inkjet head. 2. The ink supply cassette according to item 1 of the scope of the patent application, wherein the vent of the pressure adjusting mechanism is fixed on the top of the ink supply cassette. 3. The ink supply cartridge according to item 1 of the scope of patent application, wherein the hollow tubular cross-sectional area of the aforementioned pressure adjustment mechanism is very small, which can cause capillary phenomenon of the ink. 4. The ink supply cartridge as described in item 1 of the scope of patent application, wherein the cross-sectional area of the opening at the other end of the pressure adjusting mechanism is much larger than the cross-section of the inkjet hole of the inkjet head 第12頁Page 12