TWI328519B - Method of electrical connection testing for inkjet printhead and detecting circuit using the same - Google Patents
Method of electrical connection testing for inkjet printhead and detecting circuit using the same Download PDFInfo
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Description
1328519 發明說明： 【發明所屬之技術領域】 [0001] 本案係關於一種連接電性測試方法，尤指一種喷墨頭連 接電性測試方法及其所適用之偵測電路。 【先前技術】 [0002] 近年來隨著個人電腦的普及與網際網路的快速發展，喷 墨印表機已成為個人電腦設備中必備的產品之一，在一 般利用加熱板來產生氣泡以將油墨經由喷嘴喷出的加熱 板型喷墨式列印技術中，由於喷墨頭的使用週期有一定 的期限，因此喷墨頭與喷墨頭承載裝置通常被設計成不 同的結構主體，以方便使用者更換喷墨頭，其中，目前 喷墨印表機以使用矩陣式喷墨頭及多工喷墨頭最為常見 〇 [0003] 以下將說明習知喷墨頭與喷墨頭承載座之間組裝的立體 結構示意圖，請參閱第一圖，其係為習知喷墨頭之結構 示意圖，如圖所示，習知的喷墨頭10係包含複數個電子 信號輸入點11及一喷嘴12，其中喷嘴12具有複數個喷孔 (未圖示），主要用來進行喷墨。 [0004] 請參閱第二圖，其係為習知印表機之喷墨頭承載座之結 構示意圖，如圖所示，喷墨頭承載座20包含本體21、電 性連結裝置22及複數個容置空間23，其中電性連接裝置 22係設置於本體21上且具有複數個接觸點221，接觸點 221係與喷墨頭10之電子信號輸入點11相對應設置，主要 用來將印表機内部之控制電路（未圖示）所傳送之控制 信號經由接觸點221以及電子信號輸入點11輸入噴墨頭1 0 096125525 表單編號A0101 第3頁/共39頁 0993153369-0 1328519 [0005] [0006]1328519 Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a connection electrical test method, and more particularly to an inkjet head connection electrical test method and a detection circuit to which the same is applied. [Prior Art] [0002] In recent years, with the popularity of personal computers and the rapid development of the Internet, inkjet printers have become one of the must-have products in personal computer equipment. In general, hot plates are used to generate air bubbles. In the hot plate type inkjet printing technology in which the ink is ejected through the nozzle, since the use period of the inkjet head has a certain period of time, the inkjet head and the inkjet head carrying device are usually designed as different structural bodies for convenience. The user replaces the ink jet head, and currently, the ink jet printer is most commonly used to use a matrix ink jet head and a multiplex ink jet head. [0003] The following description will be given between a conventional ink jet head and an ink jet head carrier. For a schematic view of the assembled three-dimensional structure, please refer to the first figure, which is a schematic structural view of a conventional inkjet head. As shown in the figure, the conventional inkjet head 10 includes a plurality of electronic signal input points 11 and a nozzle 12, The nozzle 12 has a plurality of orifices (not shown) for ink jetting. [0004] Please refer to the second figure, which is a schematic structural view of a conventional inkjet head carrier. As shown, the inkjet head carrier 20 includes a body 21, an electrical connecting device 22, and a plurality of The accommodating space 23, wherein the electrical connecting device 22 is disposed on the body 21 and has a plurality of contact points 221, the contact points 221 are corresponding to the electronic signal input points 11 of the inkjet head 10, and are mainly used for printing The control signal transmitted by the control circuit (not shown) inside the machine is input to the inkjet head via the contact point 221 and the electronic signal input point 11. Form No. A0101 Page 3 of 39 Page 99993153369-0 1328519 [0005] [ 0006]
[0007] 096125525 内部，而容置空間2 3係用來容置喷墨頭1 0。 當使用者將喷墨頭1 0置入喷墨頭承載座2 0之容置空間2 3 並固設於本體21上時，喷墨頭10之電子信號輸入點11會 與本體21上之電性連接裝置22的接觸點221相接觸，使得 印表機内部之控制電路（未圖示）所傳送之控制信號經 由接觸點221以及電子信號輸入點11輸入喷墨頭10内部， 以控制複數個喷孔喷出墨滴。 以下將分別說明習知使用矩陣式以及多工式喷墨頭之印 表機與電腦系統間的驅動電路示意圖，請參閱第三圖， 其係為習知使用矩陣式喷墨頭之印表機與電腦系統間的 驅動電路示意圖，如圖所示，印表機3内部包含有列印控 制電路板30及矩陣式喷墨頭31，至於列印控制電路板30 與喷墨頭31之間係藉由第二圖所示之電性連接裝置22之 複數個接觸點221與第一圖所示之電子信號輸入點11進行 電性連接，列印控制電路板30可由處理器301、驅動電源 供應電路302以及驅動晶片303所構成，其中驅動晶片 303係與處理器301和驅動電源供應電路302電性連接， 而處理器301可透過通用序列匯流排（USB)傳輸線與電 腦系統32連接，驅動電源供應電路302則用來提供驅動喷 墨頭31内部之加熱器（未圖示）之驅動電壓信號。 當電腦系統32欲進行資料列印動作時，列印控制電路板 30之處理器301便會接收到電腦系統32所傳送之關於欲進 行列印之資料影像以及相關處理信號，並將該資料影像 處理成喷墨頭31所能辨識之列印資料信號，並根據該列 印資料信號產生一控制信號，且將列印資料信號與控制 表單編號A0101 第4頁/共39頁 0993153369-0 1328519 化號一併傳輸至驅動晶片303 ,而驅動晶片3〇3亦會接收 由驅動電源供應電路302所持續傳送的驅動電壓信號，驅 動晶片303將因應該控制信號的觸發而將所接收到的列印 貧料信號以及驅動電壓信號傳送至喷墨頭31内部並驅動 » 噴墨頭31，以控制相對應之喷孔進行喷墨以列印出電腦 系統3 2所需要的資料。 ,[0008]凊參閱第四圖，其係為習知使用多工噴墨頭之印表機與 電腦系統間的驅動電路示意圖，如圖所示，印表機4具有 • 列印控制電路板4〇與多工喷墨頭41，且同樣可透過通用 序列匯流排（USB)傳輸線與電腦系統42連接，不同的是 控制列印電路板40中僅具有處理器4〇1與驅動電源供應電 路402，至於第三圖所示之驅動晶片3〇3已被整合設置於 喷墨頭41内部的電路中，可達到減少噴墨頭接點的優點 ，因此噴墨頭41係直接透過處理器4〇1接收資料信號，而 處理器401傳輸資料信號係用序列傳入的方式傳輸，至於 ’驅動電源供應電路4〇2則持續提供用來驅動喷墨頭41内 • 部之加熱器之驅動電壓信號。 [0009]當電腦系統42欲進行資料列印作動時，處理器4〇1便會藉 由通用序列匯流排（USB)傳輸線接收電腦系統42所傳送 之Η料影像以及相關處理信號，此時，不同於第三圖所 不之印表機3的處理方式，處理器40〗僅將資料影像以及 相關處理彳§號處理成喷墨頭41所能接受之列印信號，且 產生一控制信號，並將列印信號與控制信號一起傳輸到 喷墨頭41，此時喷墨頭41内部之驅動電路（未圖示）會 將由處理器401所傳來的列印信號轉換成為喷墨頭41真正 096125525 表單編號A0101 第5頁/共39頁 0993153369-0 1328519 進行列印時所需之列印資料信號，同時，驅動電路也會 接收到驅動電源供應電路402所持續傳來之驅動電壓信號 ，於是喷墨頭41便能因所接收之控制信號與驅動電壓信 號以及列印資料信號來控制相對應之喷孔進行喷墨。 [0010] 請再參閱第一及二圖，雖然習知使用矩陣式喷墨頭之印 表機及習知使用多工喷墨頭之印表機皆可達到列印資料 的功效，然而當喷墨頭10與喷墨頭承載座20之本體21相 接合時，會因為機構上的些微誤差，或是因為長時間的 插拔下而造成喷墨頭10之電子信號輸入點11與電性連接 裝置22的接觸點221間無法密合或接觸不良，將導致喷墨 頭10内部的喷孔無法喷印之情形，而造成列印的品質下 降。 [0011] 因此，如何發展一種可改善上述習知技術缺失之喷墨頭 連接電性測試方法及其所適用之偵測電路，實為目前迫 切需要解決之問題。 【發明内容】 [0012] 本案之主要目的在於提供一種喷墨頭連接電性測試方法 及其所適用之偵測電路，其係藉由當喷墨頭連接於印表 機列印控制端或是當喷墨頭預開始進行列印動作前，偵 測喷墨頭内之複數個喷孔是否有電流通過，以判斷喷墨 頭與印表機列印控制端間之電性連接狀況，俾解決習知 印表機無法偵測喷墨頭與印表機列印控制端之間的連接 狀況，當喷墨頭與印表機列印控制端之間因機構上的些 微誤差，或是因為長時間的插拔下而無法密合或接觸不 良時，使用者無法得知而繼續使用印表機，導致列印品 096125525 表單编號A0101 第6頁/共39頁 0993153369-0 1328519 質下降等缺點。 [0013] 為達上述目的，本案之一較廣義實施樣態為提供一種喷 墨頭電性連接測試方法，用以偵測喷墨頭與印表機列印 控制端之間的電性連接狀況，其中印表機列印控制端係 具有驅動電源供應電路以及處理器，且喷墨頭係具有複 數個位址線以及與複數個位址線陣列設置之複數個電源 信號線，測試方法至少包含下列步驟：（a)傳送第一高 電位信號至複數個電源信號線中之第一電源信號線，且 傳送第一低電位信號至其餘之電源信號線；（b)依序傳 輸第二高電位信號至複數個位址線其中之一，並且傳輸 第二低電位信號至未接收第二高電位信號之其餘位址線 ;(c)根據偵測複數個位址線其中之一是否有電流通過 之結果來判斷第一電源信號線是否與印表機列印控制端 連接，並將判斷結果存入處理器中；（d)判別所有複數 個電源信號線是否都已經完成偵測，若否，則重複步驟 (a)至（c)對其餘未偵測之電源信號線進行偵測，若 是，則完成複數個電源信號線之測試，且開始偵測複數 個位址線是否與印表機列印控制端連接；（e)傳送第二 高電位信號至複數個位址線中之第一位址線，且傳送第 二低電位信號至其餘之位址線；（f)藉由驅動電源供應 電路傳輸第一高電位信號至複數個電源信號線；（g)根 據偵測複數個電源信號線其中之一是否有電流通過之結 .果來判斷第一位址線是否與印表機列印控制端連接，並 將判斷結果存入處理器；（h)判別所有複數個位址線是 否都已經完成偵測，若否，則重複步驟（e)至（g)對 096125525 表單編號A0101 第7頁/共39頁 0993153369-0 1328519 其餘未偵測之位址線進行偵測，若是，則完成複數個位 址線之測試，以依據處理器所儲存的結果，來辨別噴墨 頭與印表機列印控制端之間是否發生接觸不良的狀況。 [0014] 根據本案之構想，其中步驟（a)至（d)可與步驟（e) 至（h )互換。 [0015] 根據本案之構想，其中印表機列印控制端係為印表機控 制電路板，用以接收並處理電子裝置所傳送之列印資料 [0016] 根據本案之構想，其中第一高電位信號及第一低電位信 號係由驅動電源供應電路所輸出。 [0017] 根據本案之構想，其中第二高電位信號及第二低電位信 號係由處理器所輸出。 [0018] 根據本案之構想，其中喷墨頭係為矩陣式喷墨頭或是多 工喷墨頭。 ^ [0019] 為達上述目的，本案之另一較廣義實施樣態為提供一種 喷墨頭電性連接測試方法，用以偵測多工喷墨頭與印表 機列印控制端之間的電性連接狀況，其中印表機列印控 制端係具有驅動電源供應電路以及處理器，且多工喷墨 頭係具有複數個位址線以及與複數個位址線垂直設置之 複數個電源信號線，測試方法至少包含下列步驟：（a) 傳送第一高電位信號至複數個位址線中之第一位址線， 且傳送第一低電位信號至其餘之位址線；（b)藉由驅動 電源供應電路傳輸第二高電位信號至複數個電源信號線 ;(c )根據偵測複數個電源信號線其中之一是否有電流 096125525 表單編號 A0101 第 8 頁/共 39 頁 0993153369-0 1328519 通過之結果來判斷第一位址線是否與印表機列印控制端 連接，並將判斷結果存入處理器中；（d)判別所有複數 個位址線是否都已經完成偵測，若否，則重複步驟（a) 至（c)對其餘未偵測之位址線進行偵測；（e)判別處 理器所儲存的結果是否顯示複數個位址線皆無與印表機 列印控制端連接，若是，則完成偵測，且得知多工喷墨 頭與印表機列印控制端接觸不良。 [0020] 根據本案之構想，其中若步驟（e)之判別結果為處理器 所儲存的結果顯示複數個位址線其中之一係與印表機列 印控制端連接時，則開始偵測複數個電源信號線是否與 印表機列印控制端連接，至少包含下列步驟：（f)傳送 第二高電位信號至複數個電源信號線中之第一電源信號 線，且傳送第二低電位信號至其餘之電源信號線；（g) 依序傳輸第一高電位信號至複數個位址線其中之一，並 且傳輸第一低電位信號至未接收第一高電位信號之其餘 位址線；（h)根據偵測複數個位址線其中之一是否有電 流通過之結果來判斷第一電源信號線是否與印表機列印 控制端連接，並將判斷結果存入處理器中；（i )判別所 有複數個電源信號線是否都已經完成偵測，若否，則重 複步驟（f)至（h)對其餘未偵測之電源信號線進行偵 測，若是，則完成複數個電源信號線之測試，以依據處 理器所儲存的結果，來辨別多工喷墨頭與印表機列印控 制端之間是否發生接觸不良的狀況。 [0021] 根據本案之構想，其中第一高電位信號及第一低電位信 號係由處理器驅動電源供應電路所輸出。 096125525 表單編號A0101 第9頁/共39頁 0993153369-0 [0022]1328519 [0023][0007] 096125525 is internal, and the accommodating space 2 3 is for accommodating the inkjet head 10. When the user puts the inkjet head 10 into the accommodating space 2 3 of the inkjet head carrier 20 and fixes it on the body 21, the electronic signal input point 11 of the inkjet head 10 is electrically connected to the body 21. The contact point 221 of the sexual connection device 22 is in contact with each other, so that a control signal transmitted from a control circuit (not shown) inside the printer is input to the inside of the inkjet head 10 via the contact point 221 and the electronic signal input point 11 to control a plurality of The nozzle holes eject ink droplets. The following is a schematic diagram of a conventional driving circuit between a printer and a computer system using a matrix type and a multiplexed inkjet head. Please refer to the third figure, which is a conventional printer using a matrix inkjet head. A schematic diagram of a driving circuit between the computer system and the computer system, as shown in the drawing, the printer 3 includes a printing control circuit board 30 and a matrix inkjet head 31, and between the printing control circuit board 30 and the inkjet head 31. The plurality of contact points 221 of the electrical connecting device 22 shown in the second figure are electrically connected to the electronic signal input point 11 shown in the first figure, and the print control circuit board 30 can be supplied by the processor 301 and the driving power source. The circuit 302 and the driving chip 303 are configured. The driving chip 303 is electrically connected to the processor 301 and the driving power supply circuit 302, and the processor 301 is connected to the computer system 32 through a universal serial bus (USB) transmission line. The supply circuit 302 is for supplying a driving voltage signal for driving a heater (not shown) inside the ink jet head 31. When the computer system 32 is to perform a data printing operation, the processor 301 of the print control circuit board 30 receives the data image and related processing signals transmitted by the computer system 32 for printing and the related image processing signals. Processing the printed data signal recognized by the inkjet head 31, and generating a control signal according to the printed data signal, and printing the data signal and the control form number A0101, page 4 / 39 pages 0993153369-0 1328519 The number is transmitted to the driving chip 303, and the driving chip 3〇3 also receives the driving voltage signal continuously transmitted by the driving power supply circuit 302, and the driving chip 303 will print the received signal according to the trigger of the control signal. The lean signal and the drive voltage signal are transmitted to the inside of the ink jet head 31 and drive the ink jet head 31 to control the corresponding orifice to perform ink jetting to print the data required by the computer system 32. [0008] Referring to the fourth figure, which is a schematic diagram of a driving circuit between a printer using a multiplexed inkjet head and a computer system, as shown in the drawing, the printer 4 has a printing control circuit board. 4〇 and multiplexed inkjet head 41, and can also be connected to computer system 42 through a universal serial bus (USB) transmission line, except that control printed circuit board 40 has only processor 4〇1 and driving power supply circuit 402. As for the driving chip 3〇3 shown in the third figure, which has been integrated in the circuit inside the inkjet head 41, the advantage of reducing the head of the inkjet head can be achieved, so that the inkjet head 41 directly passes through the processor 4. 〇1 receives the data signal, and the processor 401 transmits the data signal in a sequence transmission manner, and the driving power supply circuit 4〇2 continuously supplies the driving voltage for driving the heater inside the inkjet head 41. signal. When the computer system 42 is to perform the data printing operation, the processor 4〇1 receives the data image transmitted by the computer system 42 and the related processing signal through the universal serial bus (USB) transmission line. Different from the processing mode of the printer 3 not shown in the third figure, the processor 40 only processes the data image and the related processing number into a printing signal acceptable to the inkjet head 41, and generates a control signal. The print signal is transmitted to the inkjet head 41 together with the control signal. At this time, the driving circuit (not shown) inside the inkjet head 41 converts the printing signal transmitted from the processor 401 into the inkjet head 41. 096125525 Form No. A0101 Page 5 of 39 0993153369-0 1328519 The printing data signal required for printing is also performed, and the driving circuit also receives the driving voltage signal continuously transmitted from the driving power supply circuit 402, so The ink jet head 41 can control the corresponding orifices to perform ink ejection by the received control signal and the driving voltage signal and the printing data signal. [0010] Please refer to the first and second figures again, although it is known that the printer using the matrix type inkjet head and the conventional printer using the multiplexed inkjet head can achieve the effect of printing data, but when spraying When the ink head 10 is engaged with the body 21 of the inkjet head carrier 20, the electronic signal input point 11 of the inkjet head 10 is electrically connected due to slight errors in the mechanism or due to long-term insertion and removal. The contact points 221 of the device 22 are incapable of being in close contact or poor contact, which may cause the nozzle holes inside the inkjet head 10 to be unprintable, resulting in a deterioration in the quality of the printing. [0011] Therefore, how to develop an ink-jet head connection electrical test method which can improve the above-mentioned conventional technology and the detection circuit to which it is applied is a problem that is urgently needed to be solved. SUMMARY OF THE INVENTION [0012] The main purpose of the present invention is to provide an inkjet head connection electrical test method and a detection circuit thereof, which are used when the inkjet head is connected to the printer to print the control terminal or Before the inkjet head preliminarily starts the printing operation, it is detected whether a plurality of nozzle holes in the inkjet head pass current to determine the electrical connection between the inkjet head and the printing control terminal of the printer, and the solution is solved. The conventional printer cannot detect the connection between the inkjet head and the printing control end of the printer. When the inkjet head and the printer prints the control terminal, there is a slight error in the mechanism, or because of the long When the time is plugged and unplugged and cannot be closed or the contact is poor, the user can not know and continue to use the printer, resulting in print 096125525 Form No. A0101 Page 6 / Total 39 Page 0993153369-0 1328519 . [0013] In order to achieve the above object, one of the more general embodiments of the present invention provides a method for testing the electrical connection of an inkjet head for detecting the electrical connection between the inkjet head and the printing control terminal of the printer. The printer printing control terminal has a driving power supply circuit and a processor, and the inkjet head has a plurality of address lines and a plurality of power signal lines arranged with a plurality of address line arrays, and the testing method includes at least The following steps: (a) transmitting the first high potential signal to the first power signal line of the plurality of power signal lines, and transmitting the first low potential signal to the remaining power signal lines; (b) sequentially transmitting the second high potential Transmitting to one of the plurality of address lines and transmitting the second low potential signal to the remaining address lines not receiving the second high potential signal; (c) detecting whether one of the plurality of address lines passes current The result is determined whether the first power signal line is connected to the printer print control terminal, and the judgment result is stored in the processor; (d) determining whether all of the plurality of power signal lines have been detected, if Repeat steps (a) through (c) to detect the remaining undetected power signal lines, and if so, complete the test of the plurality of power signal lines and start detecting whether the plurality of address lines are associated with the printer. Printing the control terminal connection; (e) transmitting the second high potential signal to the first address line of the plurality of address lines, and transmitting the second low potential signal to the remaining address lines; (f) driving the power source The supply circuit transmits the first high potential signal to the plurality of power signal lines; (g) determining whether the first address line is associated with the printer column according to whether one of the plurality of power signal lines detects a current passing through the junction The print control terminal is connected, and the judgment result is stored in the processor; (h) discriminating whether all of the plurality of address lines have been detected, and if not, repeating steps (e) to (g) to 096125525 form number A0101 7 pages/to 39 pages 0993153369-0 1328519 The remaining undetected address lines are detected, and if so, a plurality of address lines are tested to identify the inkjet head and the ink based on the results stored by the processor. Whether the meter prints between the control terminals Poor condition. [0014] According to the concept of the present invention, steps (a) to (d) may be interchanged with steps (e) to (h). [0015] According to the concept of the present invention, wherein the printer print control terminal is a printer control circuit board for receiving and processing the printed data transmitted by the electronic device [0016] according to the concept of the present case, wherein the first high The potential signal and the first low potential signal are output by the driving power supply circuit. [0017] According to the concept of the present invention, the second high potential signal and the second low potential signal are output by the processor. [0018] According to the concept of the present invention, the ink jet head is a matrix ink jet head or a multi-component ink jet head. [0019] In order to achieve the above object, another generalized embodiment of the present invention provides a method for testing an electrical connection of an inkjet head for detecting between a multiplexed inkjet head and a print control terminal of a printer. The electrical connection condition, wherein the printer printing control end has a driving power supply circuit and a processor, and the multiplexed inkjet head has a plurality of address lines and a plurality of power signals vertically disposed with the plurality of address lines The method of testing includes at least the following steps: (a) transmitting a first high potential signal to a first address line of the plurality of address lines, and transmitting the first low potential signal to the remaining address lines; (b) borrowing The second high-potential signal is transmitted from the driving power supply circuit to the plurality of power signal lines; (c) detecting whether one of the plurality of power signal lines has current 096125525, form number A0101, page 8 of 39, 0993153369-0 1328519 Through the result, it is judged whether the first address line is connected with the printing control end of the printer, and the judgment result is stored in the processor; (d) determining whether all the plurality of address lines have been detected, and if not , Repeat steps (a) through (c) to detect the remaining undetected address lines; (e) determine whether the results stored by the processor indicate that the plurality of address lines are not connected to the printer print control terminal. If yes, the detection is completed, and it is known that the multiplexed inkjet head has poor contact with the printing control end of the printer. [0020] According to the concept of the present invention, if the result of the step (e) is that the result stored by the processor indicates that one of the plurality of address lines is connected to the printer print control terminal, the detection of the complex number is started. Whether the power signal line is connected to the printer print control terminal comprises at least the following steps: (f) transmitting the second high potential signal to the first power signal line of the plurality of power signal lines, and transmitting the second low potential signal To the remaining power signal lines; (g) sequentially transmitting the first high potential signal to one of the plurality of address lines, and transmitting the first low potential signal to the remaining address lines not receiving the first high potential signal; h) determining whether the first power signal line is connected to the printer print control end according to whether one of the plurality of address lines detects the presence of a current, and storing the determination result in the processor; (i) Determine whether all the multiple power signal lines have been detected. If not, repeat steps (f) to (h) to detect the remaining undetected power signal lines. If yes, complete the multiple power signal lines. Again, according to the results stored in the processor to distinguish between the situation is bad and the multi-print ink-jet head printer's control terminal. [0021] According to the concept of the present invention, the first high potential signal and the first low potential signal are output by the processor driving power supply circuit. 096125525 Form No. A0101 Page 9 of 39 0993153369-0 [0022] 1328519 [0023]
[0024] [0025] 096125525 根據本案之構想，其中第二高電位信號及第二低電位信 號係由驅動電源供應電路所輸出。 為達上述目的，本案另提供一種偵測電路，用以偵測噴 墨頭與印表機列印控制端之間的電性連接狀況，其中印 表機列印控制端係具有處理器及驅動電源供應電路，處 理器内部係預設基礎電流信號，驅動電源供應電路係輸 出驅動電壓信號，其係包含：電阻器，其係與喷墨頭連 接；第一切換開關，其係與處理器及驅動電源供應電路 連接；類比數位轉換器，其係與電阻器及第一切換開關 連接；其中，第一切換開關係因應處理器所輸出之控制 信號的觸發而導通，以使驅動電壓信號經由電阻器傳送 至喷墨頭，並於第一切換開關與電阻器之間產生類比電 流信號，類比電流信號將經由類比數位轉換器轉換成數 位電流信號並傳送至處理器中，俾使處理器將數位電流 信號與基礎電流信號進行比對，以根據比對結果來得知 喷墨頭與印表機列印控制端之間是否發生接觸不良的狀 況。 根據本案之構想，其中印表機列印控制端更具有正常運 作電路，其係與處理器、驅動電源供應器及電阻器電性 連接，用以於噴墨頭進行正常噴墨程序時，因應處理器 的觸發而導通，以使驅動電壓信號傳輸至喷墨頭。 根據本案之構想，其中正常運作電路係為第二切換開關 ，因應處理器所傳送之控制信號的觸發而導通。 根據本案之構想，其中印表機列印控制端更具有驅動晶 表單編號A0101 第10頁/共39頁 0993153369-0 [0026] 1328519 片，其係與偵測電路之電阻器、處理器及第二切換開關 連接，用以將處理器及經由第二切換開關所傳送之信號 進行處理並傳送至喷墨頭，以控制喷墨頭進行喷墨列印 ，或是接受處理器及經由第一切換開關及電阻器所傳送 之信號，以對喷墨頭與印表機列印控制端之間的電性連 接狀況進行偵測。 [0027] 根據本案之構想，其中印表機列印控制端係為印表機控 制電路板，用以接收並處理電子裝置所傳送之列印資料 【實施方式】 [0028] 體現本案特徵與優點的一些典型實施例將在後段的說明 中詳細敘述。應理解的是本案能夠在不同的態樣上具有 各種的變化，其皆不脫離本案的範圍，且其中的說明及 圖示、在本質上係當作說明之用，而非用以限制本案。 [0029] 請參閱第五圖，其係為本案第一較佳實施例之使用矩陣 式噴墨頭之印表機與電腦系統間的驅動電路示意圖，如 ® 圖所示，印表機5内部包含有一印表機列印控制端及一 矩陣式喷墨頭51，其中印表機列印控制端可為一印表機 控制電路板50，但不以此為限，喷墨頭51具有複數個喷 孔，且印表機控制電路板50與喷墨頭51之間係藉由與印 表機控制電路板50電性連接之電性連接裝置所包含之複 數個接觸點（未圖示ί)與喷墨頭51之複數個電子信號輸 入點（未圖示）進行電性連接。 於本實施例中，印表機控制電路板50可由處理器501、驅 動電源供應電路502、驅動晶片503、偵測電路504以及 096125525 表單编號A0101 第11頁/共39頁 0992 [0030] 1328519 正常運作電路505所構成，其中驅動晶片503係與處理器 501、偵測電路504以及正常運作電路505電性連接，而 處理器501可透過通用序列匯流排（USB)傳輸線與一電 子裝置連接，可為一電腦系統52，但不以此為限，至於 驅動電源供應電路502則用來提供驅動噴墨頭51内部之加 熱器701 (如第七圖所示）之驅動電壓信號。 [0031] 處理器501可用來控制偵測電路504或是正常運作電路 505運作，當喷墨頭51剛組裝於印表機5的機構上或是欲 進行喷墨列印程序前，為了確保列印品質，處理器501將 觸發偵測電路504運作，以進行偵測印表機控制電路板50 與喷墨頭51之間的連接狀態，反之若印表機控制電路板 50與喷墨頭51之間的連接狀態一切正常時，處理器501則 改將正常運作電路505觸發，以使喷墨頭51能夠根據經由 處理器501所傳送之資料信號，以及驅動電源供應電路 502所輸出之驅動電壓信號來進行喷墨。 [0032] 其中，正常運作電路505係與處理器501、驅動電源供應 電路502以及驅動晶片503電性連接，且主要由一切換開 關5051所構成，其係於喷墨頭51進行正常喷墨列印程序 時作為驅動電源供應電路502與驅動晶片503之間的通路 ，主要因應處理器501所傳送之控制信號的觸發而導通 ，以使驅動電源供應電路502所輸出之驅動電壓信號能夠 傳輸至驅動晶片503 。 [0033] 另外，偵測電路504係由切換開關5041、電阻器5042以 及類比數位轉換器5043所組成，其中切換開關5041係與 處理器501、驅動電源供應電路502、電阻器5042以及類 096125525 表單編號A0101 第12頁/共39頁 0993153369Ό 1328519 比數位轉換器5043電性連接，當印表機5於偵測狀態下時 ，作為驅動電源供應電路502與驅動晶片503間的導通開 關，電阻器5042則與切換開關5041、類比數位轉換器 5043以及驅動晶片503電性連接，而類比數位轉換器 5043係連接設置於切換開關5041以及電阻器5042之間， 且與處理器501電性連接，用以將類比信號轉成數位信號 並且傳送至處理器501。 [0034] 由於，印表機5内部必須提供一電源至驅動晶片5 0 3才能 維持驅動晶片503的運作，因此在喷墨頭51未執行列印動 作時，偵測電路504的切換開關5041與電阻器5042之間 的節點Η將會感測到一基礎電流值，該基礎電流值將經由 類比數位轉換器5043轉換成一基礎電流信號並儲存至處 理器501中，用以作為後續判斷噴墨頭31與印表機控制電 路板50之間電性連接狀況的判斷依據。 [0035] 當印表機5欲進行偵測印表機控制電路板50與噴墨頭51之 間電性連接的狀況時，處理器501會分別輸出一控制信號 至偵測電路504及正常運作電路505，以使偵測電路504 之切換開關5041因該控制信號的觸發而導通，而正常運 作電路505之切換開關5051則因該控制信號的控制而處於 未導通之狀態，故驅動電源供應電路502會將一驅動電壓 信號經由切換開關5041、電阻器5042傳送至驅動晶片 503，並藉由驅動晶片503傳送至喷墨頭51，此時，類比 數位轉換器5043會在切換開關5041與電阻器5042之間的 節點Η接收到一類比電流信號，並將該類比電流信號轉換 成一數位電流信號，且傳送到處理器501内部。 096125525 表單编號Α0101 第13頁/共39頁 0993153369-0 [0036]處理器501會將所接收到之數位電流信號與其内部所預設 儲存之基礎電流信號作比較，當比較結果為該數位電流 彳§號與該基礎電流信號相同時，代表喷墨頭51之複數個 喷孔並未有任何的電流流過，即表示關於目前喷墨頭51 中進行偵測的該電子信號輸入點係與其相對應之印表機 控制電路板50的接觸點未連接，即接觸不良，反之，若 處理器501判別出該數位電流信號係大於該基礎電流信號 ' 時，代表著喷墨頭51之複數個喷孔中至少有一喷孔有電 流流過，故可得知目前噴墨頭51中進行偵測的該電子信 號輸入點係與其相對應之印表機控制電路板5Q的接觸點 有連接到，屬於正常狀態。 _ #制電路’朗完畢且㈣者也解決發生接觸不良的 問題後’處理器501就會再分別傳送另-控制信號至偵測 電路504及正常運作電路5〇5，以使债測電路5〇4之切換 開關5 0 41因該控制仏號而處於未導通狀態，而正常運作 電路505之切換開關5〇51則會因控制信號的觸發而導通， • 使喷墨頭51可以開始正常進行噴墨列印，此時，處理器 501便會接㈣電腦系統52所傳送之關於欲進行列印之資 料影像以及相關處理信號，並將該⑽影像處理成喷墨 頭51所能辨識之列印資料信號，並根據該列印資料信號 產生一控制信號，且將列印f料信號與控制信號一併傳 輸至驅動晶片503,而驅動晶片5G3亦會經由切換開關 挪接收由驅動電源供應電路持續傳送的驅動電壓 信號，驅動晶片503將因應該控制信號的觸發而將所接收 到的列印資料信號以及驅動電壓信號傳送至喷墨頭51内 096125525 表單编號A0101 第14頁/共39頁 0993153369-0 [0038] 部並驃動喷墨頭51，以 印出電腦i 噴孔崎喷墨以列 兒铷系統52所需要的資料。 請參閱第六圖，其係為太牵坌^ 噴畧 一第—較佳實施例之使用多工 墨碩之印表機與電腦系統 所示，目士 ⑽劫電路m ’如圖 ，印表機控制電路板6〇與多玉噴墨頭61 6。與=::有複數個噴孔，且印表機控制電-板 接之電性連接裝與印表機控制電路板⑽電性連 複數個雷匕含之複數個接觸點與噴墨頭61之 電子仏號輸入點進行電性連接。 [0039] 於本實施例中’印表機㈣電路板6()可由處理⑽ι、驅 動電源供應電路6G2、_電路⑽以及正常運作電路 6〇4所構成’偵測電路6〇3同樣係由切換開關⑽1、電阻 器6032以及類比數位轉換器6Q33所組成，而正常運作電 路604同樣可由一切換開關6〇41所構成，其中，處理器 601、驅動電源供應電路6〇2、正常運作電路6〇4之切換 開關6 0 41、偵測電路6 〇 3之切換開關6 〇 31、電阻器6 〇 3 2 以及類比數位轉換器6033之電路設計原理及所能達成之 目的及功效係已詳述於第一較佳實施例中，因此不再贅 述0 [0040] 本實施例與第一較佳實施例不同的是，本實施例之印表 機控制電路板60中並未包含任何驅動晶片，驅動電路已 被整合設置於喷墨頭61内部的電路中，可達到減少噴墨 頭61接點的優點，因此喷墨頭61係直接透過處理器601接 收資料信號，而處理器601傳輸資料信號係用序列傳入的 方式傳輸’至於，在噴墨頭61正常運作下，驅動電源供 096125525 表單编號 A0101 第 15 頁/共 39 頁 0993153369-0 1328519 應電路602則經由切換開關61持續提供用來驅動喷墨頭61 内部之加熱器701 (如第七圖所示）之驅動電壓信號，反 之，當喷墨頭61剛組裝於印表機6的機構上或是欲進行喷 墨列印程序前，為了確保列印品質，處理器601將觸發偵 測電路603運作，以進行偵測印表機控制電路板60與喷墨 頭61之間的連接狀態進行，而驅動電源供應電路602則經 由偵測電路603之切換開關6031及電阻器6032提供用來 偵測之驅動電壓信號。[0025] 096125525 According to the concept of the present invention, the second high potential signal and the second low potential signal are output by the driving power supply circuit. In order to achieve the above object, the present invention further provides a detecting circuit for detecting an electrical connection between the ink jet head and the printing control end of the printer, wherein the printer printing control terminal has a processor and a driving device. a power supply circuit, the processor internally presets a basic current signal, and the driving power supply circuit outputs a driving voltage signal, which comprises: a resistor connected to the inkjet head; a first switching switch, the processor and the processor a driving power supply circuit connection; an analog digital converter connected to the resistor and the first switching switch; wherein, the first switching on relationship is turned on according to a trigger of a control signal output by the processor, so that the driving voltage signal passes through the resistor Transmitting to the inkjet head, and generating an analog current signal between the first switching switch and the resistor, the analog current signal is converted into a digital current signal via an analog digital converter and transmitted to the processor, so that the processor will digitize The current signal is compared with the basic current signal to know whether the inkjet head is printed between the inkjet head and the printing control end of the printer according to the comparison result. Poor contact with raw materials. According to the concept of the present case, the printer print control terminal has a normal operation circuit, which is electrically connected to the processor, the driving power supply and the resistor, and is used for the normal inkjet program of the inkjet head. The triggering of the processor is turned on to transmit the driving voltage signal to the inkjet head. According to the concept of the present case, the normal operating circuit is a second switching switch that is turned on in response to the triggering of the control signal transmitted by the processor. According to the concept of the present case, the printer print control terminal further has a drive crystal form number A0101 page 10 / 39 pages 0993153369-0 [0026] 1328519 piece, which is a resistor, a processor and a detection circuit a switch switch for processing and transmitting the signal transmitted by the processor and the second switch to the inkjet head to control the inkjet head for inkjet printing, or accepting the processor and switching via the first switch The signal transmitted by the switch and the resistor detects the electrical connection between the inkjet head and the print control terminal of the printer. [0027] According to the concept of the present invention, wherein the printer print control terminal is a printer control circuit board for receiving and processing the printed data transmitted by the electronic device [embodiment] [0028] embodying the features and advantages of the present invention Some exemplary embodiments will be described in detail in the description of the following paragraphs. It is to be understood that the present invention is capable of various modifications in various embodiments, and is not intended to limit the scope of the invention. [0029] Please refer to FIG. 5, which is a schematic diagram of a driving circuit between a printer using a matrix inkjet head and a computer system according to the first preferred embodiment of the present invention, as shown in the figure of FIG. The printer print control terminal and a matrix inkjet head 51 are included, wherein the printer print control terminal can be a printer control circuit board 50, but not limited thereto, the inkjet head 51 has a plurality of And a plurality of contact points (not shown by the electrical connection device electrically connected to the printer control circuit board 50) between the printer control circuit board 50 and the inkjet head 51. It is electrically connected to a plurality of electronic signal input points (not shown) of the ink jet head 51. In this embodiment, the printer control circuit board 50 can be processed by the processor 501, the driving power supply circuit 502, the driving chip 503, the detecting circuit 504, and the 096125525. Form No. A0101 Page 11 of 39 Page 0992 [0030] 1328519 The normal operation circuit 505 is configured, wherein the driving chip 503 is electrically connected to the processor 501, the detecting circuit 504, and the normal operating circuit 505, and the processor 501 is connected to an electronic device through a universal serial bus (USB) transmission line. It can be a computer system 52, but not limited thereto, and the driving power supply circuit 502 is used to provide a driving voltage signal for driving the heater 701 (shown in FIG. 7) inside the inkjet head 51. [0031] The processor 501 can be used to control the detection circuit 504 or the normal operation circuit 505 to operate, and to ensure the column before the inkjet head 51 is just assembled on the mechanism of the printer 5 or before the inkjet printing process is to be performed. Print quality, the processor 501 will operate the trigger detection circuit 504 to detect the connection state between the printer control circuit board 50 and the inkjet head 51, and if the printer control circuit board 50 and the inkjet head 51 When the connection state is normal, the processor 501 switches the normal operation circuit 505 to enable the inkjet head 51 to drive the data output from the power supply circuit 502 according to the data signal transmitted via the processor 501. Signal to inkjet. [0032] The normal operation circuit 505 is electrically connected to the processor 501, the driving power supply circuit 502, and the driving chip 503, and is mainly composed of a switching switch 5051, which is connected to the inkjet head 51 for normal ink ejection column. When the program is printed, the path between the driving power supply circuit 502 and the driving chip 503 is mainly turned on in response to the triggering of the control signal transmitted by the processor 501, so that the driving voltage signal output from the driving power supply circuit 502 can be transmitted to the driving. Wafer 503. [0033] In addition, the detecting circuit 504 is composed of a switch 5041, a resistor 5042 and an analog digital converter 5043, wherein the switch 5041 is connected to the processor 501, the driving power supply circuit 502, the resistor 5042, and the class 096125525. No. A0101, page 12/39, 0993153369Ό 1328519 is electrically connected to the digital converter 5043. When the printer 5 is in the detecting state, it acts as a conduction switch between the driving power supply circuit 502 and the driving wafer 503, and the resistor 5042 The switch is connected to the switch 504 and the driver 503, and the analog-to-digital converter 5043 is connected between the switch 5041 and the resistor 5042, and is electrically connected to the processor 501. The analog signal is converted to a digital signal and transmitted to processor 501. [0034] Since the printer 5 must provide a power supply to the driving chip 503 to maintain the operation of the driving wafer 503, when the inkjet head 51 does not perform the printing operation, the switching switch 5041 of the detecting circuit 504 is The node 之间 between the resistors 5042 will sense a base current value that will be converted to a base current signal via the analog digital converter 5043 and stored in the processor 501 for subsequent determination of the inkjet head. The judgment basis of the electrical connection between the 31 and the printer control circuit board 50. [0035] When the printer 5 is to perform an electrical connection between the printer control circuit board 50 and the inkjet head 51, the processor 501 outputs a control signal to the detection circuit 504 and operates normally. The circuit 505 is configured to enable the switch 5041 of the detecting circuit 504 to be turned on by the triggering of the control signal, and the switch 5051 of the normal operating circuit 505 is in a non-conducting state due to the control of the control signal, so the driving power supply circuit is driven. 502 transmits a driving voltage signal to the driving chip 503 via the switching switch 5041 and the resistor 5042, and transmits the same to the inkjet head 51 by the driving wafer 503. At this time, the analog digital converter 5043 switches between the switch 5041 and the resistor. The node 50 5042 receives an analog current signal and converts the analog current signal into a digital current signal and transmits it to the processor 501. 096125525 Form No. 1010101 Page 13 / Total 39 Page 0993153369-0 [0036] The processor 501 compares the received digital current signal with the internal current signal stored in the preset, when the comparison result is the digital current When the 彳§ is the same as the basic current signal, the plurality of nozzles representing the ink-jet head 51 do not have any current flowing, that is, the electronic signal input point with respect to the current detection of the ink-jet head 51 is The contact points of the corresponding printer control circuit board 50 are not connected, that is, the contact is poor, and if the processor 501 determines that the digital current signal is greater than the basic current signal ', it represents a plurality of the inkjet heads 51. At least one of the nozzle holes has a current flowing therethrough, so that it can be known that the electronic signal input point detected by the ink jet head 51 is connected to the contact point of the corresponding printer control circuit board 5Q. It is in a normal state. After the _# system circuit is completed and (4) also solves the problem of poor contact, the processor 501 will separately transmit another control signal to the detection circuit 504 and the normal operation circuit 5〇5, so that the debt measurement circuit 5 The switch 4 of the 〇4 is in a non-conducting state due to the control nickname, and the switch 5〇51 of the normal operation circuit 505 is turned on by the trigger of the control signal. • The inkjet head 51 can be started normally. Inkjet printing, at this time, the processor 501 will connect (4) the data image to be printed and the related processing signal transmitted by the computer system 52, and process the (10) image into the column recognized by the inkjet head 51. Printing a data signal, and generating a control signal according to the printed data signal, and transmitting the printed material signal and the control signal to the driving chip 503, and the driving chip 5G3 is also received by the driving power supply circuit via the switching switch The driving voltage signal is continuously transmitted, and the driving chip 503 transmits the received printing material signal and the driving voltage signal to the inkjet head 51 in response to the triggering of the control signal. 096125525 Form No. A0101 Page 14 of 39 0993153369-0 [0038] The inkjet head 51 is moved and printed to print out the information required by the computer i. Please refer to the sixth figure, which is too sloppy ^ sneeze one - the preferred embodiment of the use of multiplexed ink master printer and computer system shown, the witness (10) robbery circuit m 'picture, print The machine control circuit board 6 〇 and the multi-jade ink jet head 61 6 . And =:: there are a plurality of nozzle holes, and the printer controls the electrical-board connection electrical connection device and the printer control circuit board (10) electrically connected to the plurality of lightning points and the plurality of contact points and the inkjet head 61 The electronic nickname input point is electrically connected. [0039] In the present embodiment, the 'printer (4) circuit board 6 () can be formed by the processing (10), the driving power supply circuit 6G2, the _ circuit (10) and the normal operating circuit 6 〇 4 'detection circuit 6 〇 3 is also The switch (10) 1, the resistor 6032, and the analog-to-digital converter 6Q33 are formed, and the normal operation circuit 604 can also be composed of a switch 6〇41, wherein the processor 601, the driving power supply circuit 6, and the normal operation circuit 6电路4 switch 6 0 41, detection circuit 6 〇3 switch 6 〇31, resistor 6 〇3 2 and analog digital converter 6033 circuit design principle and the purpose and function can be achieved In the first preferred embodiment, the description is no longer repeated. [0040] This embodiment differs from the first preferred embodiment in that the printer control circuit board 60 of the present embodiment does not include any driver chip. The driving circuit has been integrated into the circuit inside the inkjet head 61, and the advantage of reducing the contact of the inkjet head 61 can be achieved. Therefore, the inkjet head 61 directly receives the data signal through the processor 601, and the processor 601 transmits the data signal. Use The sequence is transmitted in the same way. As for the normal operation of the inkjet head 61, the driving power supply is 096125525. Form No. A0101 Page 15 of 39 0993153369-0 1328519 The circuit 602 is continuously provided for driving via the changeover switch 61. The driving voltage signal of the heater 701 (shown in FIG. 7) inside the inkjet head 61, and vice versa, just before the inkjet head 61 is assembled on the mechanism of the printer 6, or before the inkjet printing process is to be performed, In order to ensure the print quality, the processor 601 will operate the trigger detection circuit 603 to detect the connection state between the printer control circuit board 60 and the inkjet head 61, and the drive power supply circuit 602 is detected. The switch 603 and the resistor 6032 of the circuit 603 provide a drive voltage signal for detecting.
[0041] 另外，在喷墨頭61未執行任何列印動作時，於偵測電路 603的切換開關6031與電阻器6032之間的節點Η所感測到 的基礎電流值係為喷墨頭61内部驅動晶片（未圖示）運 作所需的電源，且該基礎電流值將同樣經由類比數位轉 換器6033轉換成一基礎電流信號並儲存至處理器601中， 用以作為後續判斷喷墨頭61與印表機控制電路板60之間 電性連接狀況的判斷依據。 [0042] 當印表機6欲進行偵測印表機控制電路板60與喷墨頭61之 > 間電性連接的狀況時，處理器6 01會分別輸出一控制信號 至偵測電路603及正常運作電路604，以使偵測電路603 之切換開關6031因該控制信號的觸發而導通，而正常運 作電路604之切換開關6041則因該控制信號的控制而處於 未導通之狀態，故驅動電源供應電路602會將一驅動電壓 信號經由切換開關6031、電阻器6032直接傳送至噴墨頭 61，此時，類比數位轉換器6033會在切換開關6031與電 阻器6032之間的節點Η接收到一類比電流信號，並將該類 比電流信號轉換成一數位電流信號，且傳送到處理器601 096125525 表單编號 Α0101 第 16 頁/共 39 頁 0993153369-0 1328519 内部。 [0043] 處理器601會將所接收到之數位電流信號與其内部所預設[0041] In addition, when the inkjet head 61 does not perform any printing operation, the base current value sensed by the node 之间 between the switching switch 6031 of the detecting circuit 603 and the resistor 6032 is the inside of the inkjet head 61. The driving chip (not shown) operates a power supply required, and the base current value is also converted into a basic current signal via the analog digital converter 6033 and stored in the processor 601 for subsequent determination of the inkjet head 61 and the printing. The basis for judging the electrical connection between the watch control circuit boards 60 is based on. [0042] When the printer 6 is to perform an electrical connection between the printer control circuit board 60 and the inkjet head 61, the processor 61 outputs a control signal to the detection circuit 603, respectively. And the normal operation circuit 604, so that the switch 603 of the detection circuit 603 is turned on by the trigger of the control signal, and the switch 6041 of the normal operation circuit 604 is in a non-conducting state due to the control of the control signal, so the drive The power supply circuit 602 directly transmits a driving voltage signal to the inkjet head 61 via the changeover switch 6031 and the resistor 6032. At this time, the analog digital converter 6033 receives the node 切换 between the switch 6031 and the resistor 6032. A type of current signal is converted to a digital current signal and transmitted to the processor 601 096125525 Form No. Α0101 Page 16 of 39 0993153369-0 1328519 Internal. [0043] The processor 601 presets the received digital current signal with its internal
儲存之基礎電流信號作比較，當比較結果為該數位電流 信號與該基礎電流信號相同時，代表噴墨頭61之複數個 喷孔並未有任何的電流流過，即表示關於目前喷墨頭61 中進行偵測的該電子信號輸入點係與其相對應之印表機 控制電路板60的接觸點未連接，即接觸不良，反之，若 處理器601判別出該數位電流信號係大於該基礎電流信號 時，代表著喷墨頭61之複數個噴扎中至少有一喷孔有電 流流過，故可得知目前噴墨頭61令進行偵測的該電子信 號輸入點係與其相對應之印表機控制電路板60的接觸點 有連接到，屬於正常狀態。 [0044] 當偵測電路603偵測完畢且使用者也解決發生接觸不良的 問題後，處理器601就會再分別傳送另一控制信號至偵測 電路6 03及正常運作電路604，以使偵測電路603之切換 開關6031因該控制信號而處於未導通狀態，而正常運作 電路6 04之切換開關6041則會因控制信號的觸發而導通， 使喷墨頭61可以開始正常進行喷墨列印，此時，處理器 601便會接收到電腦系統61所傳送之關於欲進行列印之資 料影像以及相關處理信號，由於驅動電路係設置於喷墨 頭61内部，因此處理器601僅將資料影像以及相關處理信 號處理成噴墨頭61所能接受之列印信號，且產生一控制 信號，並將列印信號與控制信號一起傳輸到喷墨頭61， 喷墨頭61内部之驅動電路會將由自行處理器601所傳來的 列印信號轉換成為喷墨頭61真正進行列印時所需之列印 096125525 表單編號A01O1 第17頁/共39頁 0993153369-0 1328519 資料信號，而驅動電路也會接收到驅動電源供應電路6〇2 經由切換開關6041所持續傳來之驅動電壓信號，於是驅 動電路便能因所接收之控制信號與驅動電壓信號以及列 印資料信號來控制相對應之喷孔進行喷墨。 [0045]The stored basic current signal is compared. When the comparison result is that the digital current signal is the same as the basic current signal, the plurality of nozzles representing the inkjet head 61 do not have any current flowing, that is, the current inkjet head The electronic signal input point detected in 61 is not connected to the contact point of the corresponding printer control circuit board 60, that is, the contact is poor, and if the processor 601 determines that the digital current signal is greater than the basic current In the case of a signal, at least one of the plurality of nozzles of the inkjet head 61 has a current flowing therethrough, so that it can be known that the electronic signal input point of the inkjet head 61 for detecting is corresponding to the printer. The contact point of the machine control circuit board 60 is connected to and is in a normal state. [0044] After the detection circuit 603 detects the problem and the user also solves the problem of poor contact, the processor 601 transmits another control signal to the detection circuit 603 and the normal operation circuit 604 respectively to enable the detection. The switch 6031 of the measuring circuit 603 is in a non-conducting state due to the control signal, and the switching switch 6041 of the normal operating circuit 60 is turned on by the triggering of the control signal, so that the ink jet head 61 can start the normal ink jet printing. At this time, the processor 601 receives the data image to be printed and the related processing signal transmitted by the computer system 61. Since the driving circuit is disposed inside the inkjet head 61, the processor 601 only displays the data image. And the relevant processing signal is processed into a printing signal acceptable to the inkjet head 61, and a control signal is generated, and the printing signal is transmitted to the inkjet head 61 together with the control signal, and the driving circuit inside the inkjet head 61 will be driven by The printing signal transmitted from the self-processor 601 is converted into the printing required for the ink jet head 61 to actually print 096125525 Form No. A01O1 Page 17 / Total 39 Page 0993153369-0 1328519 data signal, and the driving circuit also receives the driving voltage signal continuously transmitted from the driving power supply circuit 6〇2 via the switching switch 6041, so that the driving circuit can receive the control signal and the driving voltage signal and print the data. The signal is used to control the corresponding orifice to perform ink ejection. [0045]
請參閱第七® ’其係為噴墨㈣部之噴墨驅動電路之結 構示意圖，如圖所示，噴墨驅動電路7〇係具有呈陣列形 式排列之複數條位址線A卜AN以及複數條電源信號線 PS1 PSN，而每一位址線AbAN及電源信號線卜的 交接點上皆連接有-加熱器7(n，用以藉由所連接之電源 信號線及位址線來控制加熱器7()1運作，該㈣控制電路 70係藉由如同本案第—較佳實施例與第二較佳實施例中 所述之處理器51、61來傳送—列印資料信號給予複數個 位址線AHM ’且藉由如同本案第—較佳實施例與第二較 佳實施例中之驅動電源供應電路5Q2、6Q2來傳送驅動電 壓信號至電源信號線PS1〜PSN，並根據該列印資料信號與 驅動電壓信號來控制相對應之加熱器川進行喷墨。 [0046] 096125525 以下將配Μ词來分職日林㈣墨㈣性連接測試 之方法流程。請參閱第人圖並配合第五圖，其中第八圖 係為本案f較佳實施例之矩陣式喷墨頭電性連接測試 程圖如圖所7^ ’首先當喷墨頭51剛組裝於印表機5 的機構上或是欲進行㈣列印程序前，處理㈣ι將會分 別傳送控制信號至偵測電路5〇4以及正常運作電路505， 以關閉4正吊運作電路5 Q 5並驅動㈣電路5 0 4開始價測 )接下來，先針對複數個電源信號PS卜PSN 之第一《㈣線⑼進行偵測，使_電源供應電路 表單編號A0101 第18頁/共39頁 0993153369-0 1328519 502持續傳送一高電位信號至第一電源信號線psi，其 高電位信號係為驅動加熱器701内部之加熱雷、 .、’、电丨且進行噴 墨所需之驅動電壓信號，且持續傳送一低電位信號至其、 它電源信號線PS2〜PSN，再來，處理器5〇1會依序傳的 高電位信號給複數個位址線A卜AN其中之一，A占 丹甲該高電 位信號係為驅動加熱器701内部之切換開關導通所需 印資料信號，且同時傳送一低電位信號給予未接收到言 電位信號之其餘位址線（步驟S82)。Please refer to the seventh schematic diagram of the inkjet driving circuit of the inkjet (four) section. As shown in the figure, the inkjet driving circuit 7 has a plurality of address lines A and AN arranged in an array. a power signal line PS1 PSN, and a junction heater 7 (n for connecting the power signal line and the address line to each of the address lines AbAN and the power signal line) The device 7 () 1 operates, and the (four) control circuit 70 is transmitted by the processors 51, 61 as described in the first preferred embodiment and the second preferred embodiment - the printing data signal is given to a plurality of bits. The address line AHM' transmits the driving voltage signal to the power signal lines PS1 to PSN by driving power supply circuits 5Q2, 6Q2 as in the preferred embodiment and the second preferred embodiment of the present invention, and according to the printing data The signal and the driving voltage signal are used to control the corresponding heaters to perform inkjetting. [0046] 096125525 The following will be used to assign the syllabus to the method of the Japanese (four) ink (four) sexual connection test. Please refer to the figure of the person and the fifth Figure 8, in which the eighth figure is better for this case The circuit diagram of the matrix inkjet head electrical connection of the embodiment is as shown in Fig. 7'. First, when the inkjet head 51 is just assembled on the mechanism of the printer 5 or before the (4) printing process is to be performed, the processing (four) will be The control signals are respectively sent to the detecting circuit 5〇4 and the normal operating circuit 505 to turn off the 4 positive hanging operating circuit 5 Q 5 and drive the (4) circuit 5 0 4 to start the price measurement. Next, the first plurality of power signals PS PSN The first "(4) line (9) detects, so that the power supply circuit form number A0101 page 18 / 39 pages 0993153369-0 1328519 502 continuously transmits a high potential signal to the first power signal line psi, its high potential signal system In order to drive the heater 701 to heat the lightning, ., ', and the driving voltage signal required for inkjet, and continuously transmit a low potential signal to it, its power signal lines PS2 to PSN, and then, the processor 5〇1 will send the high-potential signal according to the sequence to one of the plurality of address lines A, AN, and the high-potential signal of A is the driving data signal for driving the switch inside the heater 701, and Simultaneously transmitting a low potential signal to the un Introduction received remaining address lines (step S82) of the potential signal.
[0047]接下來，判別複數個位址線A1〜AN其中之_是否有電漭通 過之結果來判別第一電源信號線PS1是否與印表機5之印 表機控制電路板50電性連結，即將切換開關5〇41與電2 器5042之間的節點η所測得的類比電流信號，傳送至類比 數位轉換器5043並轉換成一數位電流信號，且傳送到處 理器501内部與處理器5〇1内部所預設健存之基礎電流作 號作比較’若有-個數位電流信號比對結果係大於該基 礎電流信號，則表示複數個位址線Α1〜AN其中之一可以偵 測到電流，如此-來就可判定第一電源信號線⑼與印表 機控制電路板50之間有正常連接（步驟S83)，並將判別 結果存入處理器5〇1 (步驟S89)。 [〇_ Μ，判斷所有複數個電源信號線p.psN是否都已經完 成偵測，若否，則重複回到步驟S82對其餘未偵測之電源 k號線進行债測，若是，則完成複數個電源信號線 PSI PSN之測試，且開始偵測複數個位址線a卜—是否與 印表機控制電路板5G電性連接（步驟S84)。 [0049] 096125525 於步驟S84後， 表單編號A0101 針對複數個位址線A1〜AN之第一位址線A1 第】9頁/共39頁 0993153369-〇 1328519 進行彳貞測，處理器5 〇 1會傳送一高電位信號給予第一位址 線A1 ’且傳送一低電位信號至位址線Α2~ΑΝ ’而驅動電源 . 供應電路502會傳送高電位信號給所有的電源信號線 PS1〜PSN (步驟S85)，並判別複數個電源信號線 PS1~PSN其中之一是否有電流通過之結果來判別第一位址 線A1疋否與印表機控制電路板50電性連結（步驟S86)， 参 至於判斷方式請參閱步驟83所述，並將判別結果存入處 理器501中（步驟S89)。於步驟S86後，判別所有複數 φ 個位址線A1〜AN是否都已經完成偵測，若否，則回到步驟 S85對未偵測之位址線進行偵測，若是，則完成複數個位 址線A1〜AN之測試（步驟S87)，如此一來偵測流程即結 束’可依據處理器5〇1所儲存的結果，來辨別喷墨頭51與 印表機控制電路板50的某些接觸點間發生接觸不良的狀 況（步驟S88)。 [0050] 當然’於本較佳實施例中，偵測電路5〇4亦可先進行偵測 複數個位址線A1~AN的步驟，待複數個位址線A1~AN皆偵 • 測完後’再繼續偵測複數個電源信號線PS卜PSN，亦即將 上述彳貞測複數個電源信號線PS1~PSN之步驟S82至S84與 偵測測複數個位址線M〜AN之步驟S85~S87可作對調，並 不會影響偵測結果。 [0051] 請參閱第九圖並配合第六圖，其中第九圖係為本案第二 較佳實施例之多工噴墨頭電性連接測試之流程圖，如圖 所示’由於本實施例之印表機6係使用多工喷墨頭61，因 此處理器6 01傳輸資料信號至喷墨頭61係用序列傳入的方 式傳輸’故需先偵測複數個位址線A1〜AN，步驟如下：首 096125525 表單編號A0101 第20頁/共39頁 0993153369-0 丄j厶〇j_Ly ’處理11601將控制關閉該正常運作電糊仏驅動债 測電路603開始偵測（步驟S9〇n，接著，針對複數個位 址線A1~AN之第一位址線進行偵測，處理器601會傳送 向電位信號好第一位L卜且傳送—低電位信號至 位址線A2~AN ’而驅動電源供應電路6〇2會傳送高電位信 號給所有的複數個電源信號線PS卜PSN (步驟S9Q2) / 接下來，判別複數個電療信號線PShPSN其中之一是否有 電流通過之結果來·第—位址線A1是否與印表機列印 控制電路60電性連結（步驟S9Q3)，至於騎方式請參 閱第八圖之步驟83所述，並將判別結果存入處理器6〇1中[0047] Next, it is determined whether the first power source signal line PS1 is electrically connected to the printer control circuit board 50 of the printer 5 by the result of whether or not the plurality of address lines A1 to AN have passed the power. That is, the analog current signal measured by the node η between the switch 5〇41 and the electric device 5042 is transmitted to the analog digital converter 5043 and converted into a digital current signal, and transmitted to the processor 501 and to the processor 5 .基础1 The internal current of the preset preset memory is compared for 'If there is a digital current signal comparison result is greater than the basic current signal, it means that one of the multiple address lines Α1~AN can be detected. The current, as such, determines that there is a normal connection between the first power signal line (9) and the printer control circuit board 50 (step S83), and stores the result of the discrimination in the processor 5〇1 (step S89). [〇_ Μ, judge whether all the multiple power signal lines p.psN have been detected, if not, then return to step S82 to perform the debt test on the remaining undetected power line k, and if yes, complete the complex The power signal lines PSI PSN are tested, and a plurality of address lines ab are detected to be electrically connected to the printer control circuit board 5G (step S84). [0049] 096125525 After step S84, the form number A0101 is for the first address line A1 of the plurality of address lines A1~AN, the 9th page/the 39th page, 0993153369-〇1328519, the processor 5 〇1 A high potential signal is transmitted to the first address line A1' and a low potential signal is transmitted to the address line Α2~ΑΝ' to drive the power supply. The supply circuit 502 transmits a high potential signal to all of the power signal lines PS1 to PSN ( Step S85), and determining whether one of the plurality of power signal lines PS1~PSN has a current passing to determine whether the first address line A1 is electrically connected to the printer control circuit board 50 (step S86), As for the determination method, refer to step 83, and the determination result is stored in the processor 501 (step S89). After step S86, it is determined whether all of the complex number of address lines A1 to AN have been detected. If not, the process returns to step S85 to detect the undetected address line, and if so, completes the plurality of bits. The test of the address lines A1 to AN (step S87), so that the detection process is ended, 'the inkjet head 51 and the printer control circuit board 50 can be discriminated according to the result stored by the processor 5〇1. A situation in which contact failure occurs between the contact points (step S88). [0050] Of course, in the preferred embodiment, the detecting circuit 5〇4 can also perform the steps of detecting a plurality of address lines A1~AN, and the plurality of address lines A1~AN are all detected. After 'continue to detect a plurality of power signal lines PS Bu PSN, the step S82 to S84 of detecting the plurality of power signal lines PS1~PSN and detecting the plurality of address lines M~AN step S85~ S87 can be reversed and will not affect the detection result. [0051] Please refer to the ninth figure and cooperate with the sixth figure, wherein the ninth figure is a flow chart of the electrical connection test of the multiplexed inkjet head according to the second preferred embodiment of the present invention, as shown in the figure. The printer 6 uses the multiplexed inkjet head 61. Therefore, the processor 610 transmits the data signal to the inkjet head 61 and transmits it in a sequence. Therefore, it is necessary to detect a plurality of address lines A1 to AN first. The steps are as follows: first 096125525 form number A0101 page 20 / total 39 page 0993153369-0 丄 j厶〇j_Ly 'Process 11601 will control off the normal operation of the electric paste driving debt measurement circuit 603 to start detection (step S9 〇 n, then The first address line of the plurality of address lines A1~AN is detected, and the processor 601 transmits the first bit to the potential signal and transmits the low-level signal to the address line A2~AN'. The power supply circuit 6〇2 transmits a high potential signal to all of the plurality of power signal lines PSb (step S9Q2) / Next, it is determined whether one of the plurality of electrotherapy signal lines PShPSN has a current passing result. Whether the address line A1 is electrically connected to the printer print control circuit 60 Coupling (step S9Q3), an eighth step of FIG manner as to refer to the ride 83, and the determination result is stored in the processor 6〇1
[0052] 然後，於步驟S903後，判別所有複數個位址線4卜〇是 否都已經完成偵測’若否，則回到步驟S9〇2對其餘未谓 測之位址線偵測’若是，則完成複數個位址線Α「ΑΝ之測 試（步驟S904：^接下來，根據處理器6〇1所儲存的結果 判別全部複數個位址線A1 ~ A N是否皆無與列印控制電路板 Φ 60連接（步驟S905)，若是，因為電源信號線ps卜PSN將 完全偵側不到，因此偵測電路603的偵測結束，且得知喷 墨頭61與印表機控制電路板6〇接觸不良（步驟S910)， 若否，則開始偵測複數個電源信號線PS卜PSN是否與印表 機控制電路板60電性連接。 [0053] 之後’對複數個電源信號PS卜PSN之第一電源信號線PS1 進行偵測，使驅動電源供應電路602持續傳送一高電位信 號至第一電源信號線PS1，且傳送一低電位信號至電源信 號線PS2〜PSN，而處理器601則依序傳輸一高電位信號給 096125525 表單编號A0101 第21頁/共39頁 0993153369-0 1328519 複數個位址線A1~AN，且同時傳送一低電位信號給予未接 收到高電位信號之其餘位址線（步驟S906 )。接下來， 判別複數個位址線A卜AN其中之一是否有電流通過之結果 來判別第一電源信號線PS1是否與印表機控制電路板60電 性連結（步驟S907 )，並將判別結果存入處理器601中（ 步驟S910)。 [0054] 接著，判斷所有的複數個電源信號線是否都已經完成偵 測，若否，則回到步驟S 9 0 6針對其餘未彳貞測之電源信號 線偵測，若是，則完成複數個電源信號線PS卜PSN之測試 (步驟S908 )，如此一來，偵測電路603之偵測流程即結 束偵測，可依據處理器601所儲存的結果，來辨別噴墨頭 61與印表機控制電路板60是否發生接觸不良的狀況（步驟 S909)。 [0055] 综上所述，本案之喷墨頭連接電性測試方法及其所適用 之偵測電路能在當喷墨頭剛組裝於印表機的機構上或是 欲進行噴墨列印程序前，可藉由喷墨頭連接電性測試方 法判斷出喷墨頭與印表機列印控制端之間是否有接觸不 良的狀況，讓使用者能排除相關連接問題，進而提升列 印品質。是以，本案之噴墨頭連接電性測試方法及其所 適用之偵測電路極具產業之價值，爰依法提出申請。 [0056] 本案得由熟知此技術之人士任施匠思而為諸般修飾，然 皆不脫如附申請專利範圍所欲保護者。 【圖式簡單說明】 [0057] 第一圖：其係為習知噴墨頭之結構示意圖。 096125525 表單编號A0101 第22頁/共39頁 0993153369-0 1328519 意 _帛二®:其係為習知印表機之喷墨頭承載座之結構示 圖。 國第U係Μ知使賴陣式衫頭之印表機與電腦 系統間的驅動電路示意圖。 闺第四® :其料習知使用h式01墨頭之印表機與電腦 系統間的驅動電路示意圖。 陳]帛五@ .其係為本案___較佳實施例之使用矩陣式喷墨 頭之印表機與電腦系統間的驅動電路示意圖。 剛第六圖：其係為本案第二較佳實施例之使用S工式喷墨 頭之印表機與電腦系統間的驅動電路示意圖。 _3]第七圖：其係為喷墨頭内部之喷墨驅動電路之結構示意 圖。 [0064] 第A圖·其係為本案第__較佳實施例之矩陣式喷墨頭電 性連接測試之流程圖。 [0065] 第九圖·係為本案第二較佳實施例之多工喷墨頭電性連 接測試之流程圖。 【主要元件符號說明】 [0066] 3 ' 4 ' 5 ' 6 :印表機 10、31、41、51、61:噴墨 頭 11 :電子信號輸入點 12 :噴嘴 20 :噴墨頭承載座 21 :本體 22:電性連結裝置 ---- 221 :接觸點 表單蝙號A0101 第23頁/共39頁 0993153369-0 096125525 1328519[0052] Then, after step S903, it is determined whether all of the plurality of address lines 4 have completed the detection. If not, return to step S9〇2 to detect the remaining undetected address lines. Then, a plurality of address lines are completed. "Step S904: ^ Next, according to the result stored by the processor 6〇1, it is determined whether all of the plurality of address lines A1 to AN are not printed with the control board Φ. 60 is connected (step S905), and if so, since the power signal line ps and PSN are completely undetectable, the detection of the detecting circuit 603 ends, and it is known that the ink jet head 61 is in contact with the printer control circuit board 6 Bad (step S910), if not, it starts to detect whether a plurality of power signal lines PS and PSN are electrically connected to the printer control circuit board 60. [0053] After that, the first of the plurality of power signals PS and PSN The power signal line PS1 detects that the driving power supply circuit 602 continuously transmits a high potential signal to the first power signal line PS1, and transmits a low potential signal to the power signal lines PS2 PSPSN, and the processor 601 sequentially transmits a high potential signal to the 096125525 form No. A0101, page 21/39, 0993153369-0 1328519, a plurality of address lines A1~AN, and simultaneously transmit a low potential signal to the remaining address lines that have not received the high potential signal (step S906). Next, discriminate Whether one of the plurality of address lines A and A has a current passing determines whether the first power signal line PS1 is electrically coupled to the printer control circuit board 60 (step S907), and stores the determination result in the processor. 601 (step S910). [0054] Next, it is determined whether all of the plurality of power signal lines have been detected, and if not, return to step S9 0 6 for the remaining undetected power signal line detection If yes, the test of the plurality of power signal lines PS and PSN is completed (step S908), so that the detection process of the detecting circuit 603 ends the detection, and the spray can be identified according to the result stored by the processor 601. Whether the ink head 61 and the printer control circuit board 60 are in poor contact condition (step S909). [0055] In summary, the inkjet head connection electrical test method and the detection circuit applicable thereto can be When the inkjet head is just assembled Before the inkjet printing process is performed on the printer, the inkjet head connection electrical test method can be used to determine whether there is a bad contact between the inkjet head and the printing control end of the printer. The user can eliminate the related connection problems and improve the printing quality. Therefore, the inkjet head connection electrical test method and the detection circuit to which the method is applied have great industrial value, and the application is made according to law. [0056] This case has been modified by people who are familiar with the technology, but it is not intended to be protected by the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0057] First figure: It is a schematic structural view of a conventional ink jet head. 096125525 Form No. A0101 Page 22 of 39 0993153369-0 1328519 Meaning _帛二®: This is a structural diagram of the inkjet head carrier of a conventional printer. The U-U system is a schematic diagram of the drive circuit between the printer and the computer system.闺Fourth®: A schematic diagram of the drive circuit between the printer and the computer system using the h-type 01 ink head. Chen]帛五@. It is a schematic diagram of a driving circuit between a printer and a computer system using a matrix inkjet head according to a preferred embodiment. Just as the sixth figure: it is a schematic diagram of the driving circuit between the printer and the computer system using the S-type inkjet head according to the second preferred embodiment of the present invention. _3] Fig. 7 is a schematic view showing the structure of an ink jet driving circuit inside the ink jet head. [0064] Fig. A is a flow chart showing the electrical connection test of the matrix type inkjet head of the preferred embodiment of the present invention. [0065] Fig. 9 is a flow chart showing the electrical connection test of the multiplexed ink jet head of the second preferred embodiment of the present invention. [Description of main component symbols] [0066] 3 ' 4 ' 5 ' 6 : Printer 10, 31, 41, 51, 61: Inkjet head 11: Electronic signal input point 12: Nozzle 20: Inkjet head carrier 21 : Body 22: Electrical connection device --- 221 : Contact point form bat number A0101 Page 23 / Total 39 page 0993153369-0 096125525 1328519
096125525 23 :容置空間 30 、40 :歹'J印控制電路板 301、401、501、601 :處理 器 302、402、502、602:驅動 電源供應電路 303、503 ·驅動晶片 32、42、52、62 :電腦系統 50、60印表機列印控制電路板 504、603 :偵測電路 5041 、 6031 、 5051 、 6041 : 切換開關 5042、6032 :電阻器 5043、6033 :類比數位轉換 器 505、604 :正常運作電路 70 :喷墨驅動電路 701 :加熱器 A卜AN :位址線 PS卜PSN :電源信號線 S81〜S89 :矩陣式喷墨頭電 性連接測試之流程 S901〜911 :多工喷墨頭電性 連接測試之流程 表單编號A0101 第24頁/共39頁 0993153369-0096125525 23 : accommodating space 30 , 40 : 歹 'print control circuit board 301 , 401 , 501 , 601 : processor 302 , 402 , 502 , 602 : drive power supply circuit 303 , 503 · drive wafer 32 , 42 , 52 62: computer system 50, 60 printer printing control circuit board 504, 603: detection circuit 5041, 6031, 5051, 6041: switch 5042, 6032: resistors 5043, 6033: analog digital converter 505, 604 : Normal operation circuit 70: Inkjet drive circuit 701: Heater A: AN: Address line PS Bu PSN: Power supply signal line S81 to S89: Matrix inkjet head electrical connection test flow S901 to 911: multiplex injection Ink head electrical connection test flow form number A0101 Page 24 / Total 39 page 0993153369-0
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| Application Number | Priority Date | Filing Date | Title |
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| TW96125525A TWI328519B (en) | 2007-07-13 | 2007-07-13 | Method of electrical connection testing for inkjet printhead and detecting circuit using the same |
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| Application Number | Priority Date | Filing Date | Title |
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| TW96125525A TWI328519B (en) | 2007-07-13 | 2007-07-13 | Method of electrical connection testing for inkjet printhead and detecting circuit using the same |
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| TW200902328A TW200902328A (en) | 2009-01-16 |
| TWI328519B true TWI328519B (en) | 2010-08-11 |
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| CN113866685A (en) * | 2020-06-30 | 2021-12-31 | 深圳市汉森软件有限公司 | Device, method, equipment and medium for electrifying detection of nozzle control plate |
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