TWI417688B - Photosensitive drum of the conductive device - Google Patents
Photosensitive drum of the conductive device Download PDFInfo
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Description
本發明主要係揭示一種導電裝置，尤其是指一種使用於列印系統的感光鼓之導電裝置。The present invention mainly discloses a conductive device, and more particularly to a conductive device for a photosensitive drum used in a printing system.
感光鼓為列印技術的核心，其具有一個特殊的特性為，感光鼓在曝光時是導電的，但是當感光鼓沒有接獲到光線的照射時是絕緣體。The photosensitive drum is the core of the printing technique, and has a special characteristic that the photosensitive drum is electrically conductive when exposed, but is an insulator when the photosensitive drum is not exposed to light.
感光鼓運作程序主要包括佈電、曝光、顯像、轉寫、清理與除電等六大步驟的迴圈。當列印系統接收到列印指令時，佈電桿或是電暈裝置佈電於感光鼓，令感光鼓表面充滿負電荷或正電荷之靜電電位，列印系統之處理器將圖像資料透過雷射光束或是發光二極體光束照射到感光鼓上，在相應的位置上形成曝光，此時曝光位置的表面靜電荷會被感光鼓內的電荷產生層因照光而產生的電子電洞對，來中和感光鼓表面的負電荷或是正電荷，達到曝光的區域呈現電中性，不再具有靜電荷。接著由於碳粉帶有同感光鼓相同性質的電荷，此時快速轉動的感光鼓經過碳粉匣時，被曝光的部位便會吸附帶電的碳粉，進一步顯像出圖像。當紙張進入列印系統內部後帶有與碳粉相反的正電荷或負電荷，由於異性相吸的緣故，如此便能使感光鼓上的碳粉轉寫到紙張上。最後清理感光鼓上殘留的碳粉，利用刮刀清理殘餘碳粉且同時除去靜電，使感光鼓表面的電位回復到初始狀態，以便展開下一個迴圈動作。The drum operation program mainly includes six steps of power distribution, exposure, development, transfer, cleaning and power removal. When the printing system receives the printing instruction, the cloth pole or the corona device is electrically connected to the photosensitive drum, so that the surface of the photosensitive drum is filled with a negative electric charge or a positive electric potential, and the processor of the printing system transmits the image data. The laser beam or the light-emitting diode beam is irradiated onto the photosensitive drum to form an exposure at a corresponding position, and the surface static charge at the exposure position is generated by the electron-hole pair generated by the charge generating layer in the photosensitive drum due to illumination. To neutralize the negative or positive charge on the surface of the drum, the area reaching the exposure is electrically neutral and no longer has an electrostatic charge. Then, since the toner has the same electric charge as the photosensitive drum, when the rapidly rotating photosensitive drum passes through the toner cartridge, the exposed portion absorbs the charged toner to further visualize the image. When the paper enters the inside of the printing system with a positive or negative charge opposite to the toner, the toner on the drum is transferred to the paper due to the attraction of the opposite sex. Finally, the residual toner on the photosensitive drum is cleaned, and the residual toner is cleaned by a doctor blade while removing static electricity, so that the potential of the surface of the photosensitive drum is returned to the initial state, so as to unfold the next loop motion.
為了達到感光鼓具有感光的導電特性與未曝光時的絕緣特性，感光鼓會在鋁基材上形成三層(或三層以上)塗佈層，或是採用陽極處理後的鋁基材上形成二層(或二層以上)塗佈層，以下說明是以鋁基材上形成三層塗佈層的製程為例。第一層為吸附層或阻抗層，其厚度約>0.5μm；第二層為感光層亦為電荷產生層，其厚度<1μm，此層的組成為染料，其作用是曝光以後產生電子電洞對；第三層為導電層亦為電荷傳導層，其厚度為10~50μm，其主要用途是負責電荷傳遞與做為感光鼓的保護層，將曝光後所產生的正或負電荷與感光鼓表面負或正電荷中和。In order to achieve the photosensitive property of the photosensitive drum and the insulating property when not exposed, the photosensitive drum may form a three-layer (or three or more) coating layer on the aluminum substrate, or may be formed on the aluminum substrate after the anode treatment. The coating layer of two layers (or two or more layers) is exemplified by a process of forming a three-layer coating layer on an aluminum substrate. The first layer is an adsorption layer or a resistive layer having a thickness of about >0.5 μm; the second layer is a photosensitive layer and a charge generating layer having a thickness of <1 μm. The composition of the layer is a dye, and the function is to generate an electron hole after exposure. The third layer is a conductive layer and a charge-conducting layer, and its thickness is 10~50μm. Its main purpose is to charge the charge and act as a protective layer of the photosensitive drum, and the positive or negative charge generated after exposure and the photosensitive drum The surface is negative or positively neutralized.
而鋁基材上所進行塗佈的第一層塗料是一種扮演塗層吸附結合與提供阻抗的作用，藉由第一層塗佈處理改變鋁基材的表面粗糙度，利用控制鋁基材的表面粗糙度避免入射雷射光產生不必要的干涉現象。並進一步提高感光鼓的阻抗值，令感光鼓具有儲存電荷維持時效。令感光鼓經佈電、曝光、顯像與轉寫過程中，需要附著於感光鼓上的電荷能夠持續維持至轉寫步驟。以及令雷射光束進行曝光步驟時，雷射光束能夠快速的令先前所佈之電荷完全脫離感光鼓表面。The first layer of coating applied on the aluminum substrate acts to adsorb and bond the coating, and the surface roughness of the aluminum substrate is changed by the first layer coating treatment, and the aluminum substrate is controlled by the aluminum substrate. Surface roughness prevents unwanted interference from incident laser light. And further increase the impedance value of the photosensitive drum, so that the photosensitive drum has a stored charge to maintain aging. During the process of charging, exposing, developing, and transferring the photosensitive drum, the electric charge that needs to be attached to the photosensitive drum can be continuously maintained until the transfer step. And when the laser beam is subjected to an exposure step, the laser beam can quickly remove the previously charged charge completely from the surface of the photosensitive drum.
具有陽極處理層搭配二層塗佈層之感光鼓，雖然陽極處理能夠讓感光鼓提供較佳的列印效果，但是陽極處理的費用相當高昂，且陽極處理是位於底層，當另二層塗佈層產生塗佈瑕疵或者運送過程讓處理完成的感光鼓形成碰撞或損傷時，處理完成而有瑕疵的感光鼓即形成報廢，無法使用。A photosensitive drum having an anodized layer and a two-layer coating layer, although the anode treatment can provide a better printing effect for the photosensitive drum, the cost of the anode treatment is quite high, and the anode treatment is located at the bottom layer, and when the other layer is coated When the layer is coated or transported to cause collision or damage of the processed photosensitive drum, the photosensitive drum which has been processed and defective is formed to be scrapped and cannot be used.
後來有了三層塗佈層的感光鼓，其第一層塗佈層基於成本較低的因素而取代了陽極處理層，第一層塗佈層具有陽極處理層主要所欲達成的功效，但是第一層塗佈層達成的效能較差。第一層塗佈層主要存在有「感光鼓受到大電流而擊穿的缺失」，因為第一層塗佈層是採用塗佈的技術，感光鼓面積大而容易發生塗佈的材料混合不均勻，讓局部區域呈現低阻抗，低阻抗的部位會形成短路而造成大電流而擊穿。Later, with the three-layer coating layer of the photosensitive drum, the first coating layer replaced the anodized layer based on the lower cost factor, and the first coating layer has the main effect of the anodized layer, but The first coating layer achieves poor performance. The first coating layer mainly has a "defect of the photosensitive drum which is subjected to a large current and is broken down" because the first coating layer is a coating technique, and the photosensitive drum area is large and the coating material is likely to be unevenly mixed. The local area is rendered low impedance, and the low impedance portion will form a short circuit and cause a large current to break down.
參照我國專利公告編號第373593號「感光滾筒座」，其在一主體之前方設有感光滾筒固定軸孔，而位於背側則形成中空狀之回收槽，並包括有：一碳粉回收機構及一高壓線清潔機構所組合而成；藉由上述機構，其一：係利用傳動齒輪與從動齒輪受感光滾筒旋轉機構之驅動來帶動回收刮板旋轉，當刮片將感光滾筒未被轉移之剩餘碳粉刮除後，該回收刮板即可將碳粉刮帶入回收槽內，同時以擋片來封擋住碳粉，以避免碳粉灑落於被影印紙上；其二：該一高壓線清潔機構係利用拉桿往一側拉動，當滑座由滑軌之斜開狀一側被拉動前進時，推片會沿著滑軌壁面之內縮而迫使兩壓板分別往內推移，而清潔塊則抵附於高壓線上，在滑座被往復拉動同時，即可對高壓線作清潔擦拭，以達到較佳之使用效果者。Referring to China Patent Publication No. 373593 "Photosensitive roller holder", a photosensitive roller fixing shaft hole is arranged in front of a main body, and a hollow recovery groove is formed on the back side, and includes: a toner recovery mechanism and A high-voltage line cleaning mechanism is combined; by the above mechanism, one of the following: the driving gear and the driven gear are driven by the rotating mechanism of the photosensitive drum to drive the recovery scraper to rotate, and when the scraper is used, the photosensitive drum is not transferred. After the toner is scraped off, the recycling scraper can scrape the toner into the recovery tank, and block the toner with a baffle to prevent the toner from falling on the photocopying paper; Second: the high-voltage wire cleaning mechanism The pull rod is pulled to one side. When the slide is pulled forward by the oblique side of the slide rail, the push piece will be retracted along the wall surface of the slide rail to force the two pressure plates to move inward respectively, and the cleaning block is pressed. Attached to the high-voltage line, when the sliding seat is pulled back and forth, the high-voltage line can be cleaned and wiped to achieve better use.
由前述專利能夠得知，感光滾筒裝設在感光滾筒匣內時，感光滾筒裝設有從動齒輪，且其受到傳動齒輪的帶動而產生轉動功效。從動齒輪除了具有傳動的功效之外，從動齒輪在佈電的步驟中更擔任重要的媒介。It can be known from the aforementioned patent that when the photosensitive drum is installed in the photosensitive drum, the photosensitive drum is provided with a driven gear, and it is driven by the transmission gear to generate a turning effect. In addition to the drive function, the driven gear acts as an important medium in the step of powering up.
從動齒輪會軸接一個金屬軸，且從動齒輪貼設有一個銅片，金屬軸同時接觸於銅片的內周緣，而銅片的外周緣會接觸於感光滾筒。當金屬軸接獲外部送電時，金屬軸電接觸於銅片，且銅片電接觸於感光滾筒進一步完成佈電的步驟。The driven gear is connected to a metal shaft, and the driven gear is attached with a copper piece. The metal shaft simultaneously contacts the inner circumference of the copper piece, and the outer periphery of the copper piece contacts the photosensitive drum. When the metal shaft receives the external power transmission, the metal shaft is electrically contacted with the copper sheet, and the copper sheet is electrically contacted with the photosensitive drum to further complete the step of discharging.
目前使用的感光滾筒能夠改變為具有導電特性與具有絕緣特性。為了讓感光滾筒具備這樣的特性，感光滾筒上的塗佈層顯得相當重要，且感光滾筒上的塗佈層不容許有雜質、膜厚不均等瑕疵。因此，感光滾筒的製程要求極為嚴格，且這樣的塗佈製法的成本較高。再者，感光滾筒因為必須重複進行前述之感光滾筒運作程序的六大步驟之迴圈，當感光滾筒使用一段時日後，感光滾筒的效能會降低，其原因可能是佈電的效能降低，或是曝光時電荷無法快速且完全離開感光滾筒，以致於碳粉定著效果不彰，或是沒有確實清理以致於感光滾筒上附著有殘餘碳粉…等等因素。當感光滾筒無法提供初始的工作效果時，感光滾筒必須汰舊換新，但是以感光滾筒這樣繁瑣的製程而言，直接更換新品的感光滾筒對於消費者而言，無疑是相當大的負擔。The photosensitive drum currently in use can be changed to have conductive characteristics and have insulating properties. In order to provide the photosensitive drum with such characteristics, the coating layer on the photosensitive drum appears to be quite important, and the coating layer on the photosensitive drum is not allowed to have impurities, uneven thickness, and the like. Therefore, the process requirements of the photosensitive drum are extremely strict, and the cost of such a coating method is high. Furthermore, since the photosensitive roller has to repeat the loop of the six steps of the aforementioned photosensitive roller operation procedure, the performance of the photosensitive roller may be lowered after the photosensitive roller is used for a period of time, which may be due to a decrease in the efficiency of the electrical discharge, or The charge cannot be quickly and completely left from the photosensitive drum during exposure, so that the toner is not fixed enough, or the toner is not cleaned so that residual toner adheres to the photosensitive drum. When the photosensitive roller can not provide the initial working effect, the photosensitive roller must be replaced with a new one. However, in the cumbersome process of the photosensitive roller, directly replacing the photosensitive roller of the new product is undoubtedly a considerable burden for the consumer.
因此，本發明想排除或至少減輕先前技術所遭遇的問題。Accordingly, the present invention is intended to obviate or at least alleviate the problems encountered in the prior art.
本發明所欲解決之技術問題係在於針對現有技術存在的缺失，提供一種感光鼓之導電裝置。The technical problem to be solved by the present invention is to provide a conductive device for a photosensitive drum in view of the deficiencies in the prior art.
本發明主要改良的技術手段為，該導電裝置具有控制電流大小的功效，該導電裝置直接提供適當的阻抗能力，能夠避免過大漏電電流。因為感光鼓上具有數層塗佈層，塗佈層屬於塗膜混合物，其為非均勻材質，且塗佈層之塗膜會吸水，電阻值會變低，導致絕緣性變差而漏電。而本發明之導電裝置提供均勻電阻值，阻抗不受溫濕度變化影響，令該導電裝置不受感光鼓的塗層瑕疵影響，也不受環境溫度與濕度影響，而能夠改良傳統的感光鼓品質不易控管的缺失。再者，該導電裝置能夠避免感光鼓的擊穿問題，該導電裝置之電阻值沒有局部低阻抗而讓大電流擊穿的缺失。本發明之導電裝置確實能夠提供符合要求的列印能力。The main technical improvement of the invention is that the conductive device has the function of controlling the magnitude of the current, and the conductive device directly provides an appropriate impedance capability, and can avoid excessive leakage current. Since the photosensitive drum has a plurality of coating layers, the coating layer belongs to a coating film mixture, which is a non-uniform material, and the coating film of the coating layer absorbs water, and the electric resistance value becomes low, resulting in deterioration of insulation and electric leakage. The conductive device of the present invention provides a uniform resistance value, and the impedance is not affected by changes in temperature and humidity, so that the conductive device is not affected by the coating 瑕疵 of the photosensitive drum, and is not affected by the ambient temperature and humidity, and can improve the quality of the conventional photosensitive drum. The lack of control is not easy. Moreover, the conductive device can avoid the breakdown problem of the photosensitive drum, and the resistance value of the conductive device has no local low impedance and the large current breakdown is lost. The conductive device of the present invention does provide the printing capability that meets the requirements.
本發明次要改良的技術手段為，該電阻件對於電流的流通具有阻抗能力，該電阻件能夠避免感光鼓受到大電流而擊穿的缺失，而能夠避免短路的情形發生。The technical means for the secondary improvement of the present invention is that the resistor member has an impedance capability for the flow of current, and the resistor member can avoid the lack of breakdown of the photosensitive drum by a large current, and can avoid the occurrence of a short circuit.
本發明又一要改良的技術手段為，藉由該導電裝置的成本遠低於感光鼓的成本，縱使該導電裝置損耗時，使用者能夠更換價格較低廉的導電裝置，以達到節省列印成本之功效。Another technical means for improvement of the present invention is that the cost of the conductive device is much lower than the cost of the photosensitive drum, and even when the conductive device is worn out, the user can replace the less expensive conductive device to save printing cost. The effect.
其他目的、優點和本發明的新穎特性將從以下詳細的描述與相關的附圖更加顯明。Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.
有關本發明所採用之技術、手段及其功效，茲舉一個較佳實施例並配合圖式詳述如後，此僅供說明之用，在專利申請上並不受此種結構之限制。The technology, means and effects of the present invention are set forth in the accompanying drawings, and the description of the drawings and the accompanying drawings.
參照圖一、圖二與圖三，為本發明感光鼓、感光鼓匣與導電裝置之立體外觀圖、立體分解圖與剖視圖。本發明之導電裝置1軸接於列印系統的感光鼓2，且感光鼓2設於感光鼓匣3內。該導電裝置1能夠配合未經陽極處理的感光鼓2，感光鼓2的兩端分別藉由該導電裝置1與一個軸接件(圖中未見)接設於感光鼓匣3，該導電裝置1與軸接件兩者其一之外周緣具有齒，而能夠受到傳動進一步帶動感光鼓2轉動。感光鼓匣3設有一個金屬軸301，金屬軸301穿設於感光鼓匣3與該導電裝置1，金屬軸301與感光鼓2藉由該導電裝置1電性連接。1 , 2 and 3 are a perspective view, an exploded perspective view and a cross-sectional view of a photosensitive drum, a photosensitive drum and a conductive device of the present invention. The conductive device 1 of the present invention is axially coupled to the photosensitive drum 2 of the printing system, and the photosensitive drum 2 is disposed in the photosensitive drum 3. The conductive device 1 can be coupled to the photosensitive drum 2 which is not anodized. The two ends of the photosensitive drum 2 are respectively connected to the photosensitive drum 3 by the conductive device 1 and a shaft connector (not shown). 1 and the shaft joint have teeth on the outer circumference thereof, and can be further driven to rotate the photosensitive drum 2 by the transmission. The photosensitive drum 3 is provided with a metal shaft 301. The metal shaft 301 is disposed through the photosensitive drum 3 and the conductive device 1. The metal shaft 301 and the photosensitive drum 2 are electrically connected by the conductive device 1.
該導電裝置1具有控制電流大小的功效，該導電裝置1直接提供適當的阻抗能力，能夠避免過大漏電電流。因為感光鼓2上具有數層塗佈層，塗佈層屬於塗膜混合物，其為非均勻材質，且塗佈層之塗膜會吸水，電阻值會變低，導致絕緣性變差而漏電。而本發明之導電裝置1提供均勻電阻值，阻抗不受溫濕度變化影響，令該導電裝置1不受感光鼓2的塗層瑕疵影響，也不受環境溫度與濕度影響，而能夠改良傳統的感光鼓2品質不易控管的缺失。再者，該導電裝置1能夠避免感光鼓2的擊穿問題，該導電裝置1之電阻值沒有局部低阻抗而讓大電流擊穿的缺失。本發明之導電裝置1確實能夠提供符合要求的列印能力。The conductive device 1 has the effect of controlling the magnitude of the current, and the conductive device 1 directly provides an appropriate impedance capability to avoid excessive leakage current. Since the photosensitive drum 2 has a plurality of coating layers, the coating layer belongs to a coating film mixture, which is a non-uniform material, and the coating film of the coating layer absorbs water, and the electric resistance value becomes low, resulting in deterioration of insulation and electric leakage. The conductive device 1 of the present invention provides a uniform resistance value, and the impedance is not affected by the temperature and humidity changes, so that the conductive device 1 is not affected by the coating 瑕疵 of the photosensitive drum 2, and is not affected by the ambient temperature and humidity, and can improve the conventional The photosensitive drum 2 is not easy to control the quality of the tube. Furthermore, the conductive device 1 can avoid the breakdown problem of the photosensitive drum 2, and the resistance value of the conductive device 1 has no local low impedance and causes a large current breakdown. The conductive device 1 of the present invention is indeed capable of providing a printing capability that meets the requirements.
同時參照圖四與圖五，為本發明之導電裝置之立體外觀圖與立體分解圖。該導電裝置1包括一個承接件10、一個第一導件20、一個電阻件30與一個第二導件40。該承接件10能夠迫緊的結合於感光鼓2之內緣，該承接件10依序結合該第一導件20、該電阻件30與該第二導件40。該導電裝置1藉由該第一導件20與該第二導件40提供有效率的傳輸電流之功效，而利用該電阻件30產生的阻抗進一步控制電流流通的大小。4 and FIG. 5 are a perspective view and an exploded perspective view of the conductive device of the present invention. The conductive device 1 includes a receiving member 10, a first guiding member 20, a resisting member 30 and a second guiding member 40. The receiving member 10 can be tightly coupled to the inner edge of the photosensitive drum 2, and the receiving member 10 sequentially joins the first guiding member 20, the resistor member 30 and the second guiding member 40. The conductive device 1 provides an efficient transfer current effect by the first guiding member 20 and the second guiding member 40, and the impedance generated by the resistor member 30 further controls the magnitude of current circulation.
同時參照圖六、圖七與圖八，為本發明之導電裝置之剖視圖。該承接件10結合於感光鼓2之內緣，該承接件10包括第一端101與第二端102，該承接件10之外緣包括一個迫緊緣11、一個容槽12、一個突緣13與一個齒部14，該迫緊緣11具有一個第一外徑D1，該迫緊緣11之第一外徑D1等於感光鼓2之內緣。該突緣13位於該迫緊緣11與該齒部14之間，該迫緊緣11與該容槽12相鄰，該容槽12鄰近該承接件10第一端101之端面，該齒部14位於第二端102。該承接件10軸向設有一個穿孔15，其穿透第一端101與第二端102，該穿孔15具有一個第一內徑d1。該承接件10第一端101之端面形成一個貼設面16，且該貼設面16上突設有數個結合部17。6 and FIG. 7 and FIG. 8 are cross-sectional views of the conductive device of the present invention. The receiving member 10 is coupled to the inner edge of the photosensitive drum 2. The receiving member 10 includes a first end 101 and a second end 102. The outer edge of the receiving member 10 includes a pressing edge 11, a receiving groove 12 and a flange. 13 and a tooth portion 14, the pressing edge 11 has a first outer diameter D1, and the first outer diameter D1 of the pressing edge 11 is equal to the inner edge of the photosensitive drum 2. The flange 13 is located between the pressing edge 11 and the tooth portion 14 . The pressing edge 11 is adjacent to the receiving groove 12 . The receiving groove 12 is adjacent to the end surface of the first end 101 of the receiving member 10 . 14 is located at the second end 102. The receiving member 10 is axially provided with a through hole 15 penetrating the first end 101 and the second end 102, the through hole 15 having a first inner diameter d1. An end surface of the first end 101 of the receiving member 10 forms an attaching surface 16 , and a plurality of joint portions 17 are protruded from the mounting surface 16 .
該承接件10能夠穿設於感光鼓2，該承接件10之迫緊緣11迫緊的設於感光鼓2之內緣，該突緣13擋設於感光鼓2之端面，該齒部14能夠囓合感光鼓匣3之傳動齒輪，該承接件10第二端102之端面抵設於感光鼓匣3之內壁，且金屬軸301穿設於該承接件10之穿孔15。The receiving member 10 can be disposed on the photosensitive drum 2, and the pressing edge 11 of the receiving member 10 is tightly disposed on the inner edge of the photosensitive drum 2. The flange 13 is disposed on the end surface of the photosensitive drum 2, and the tooth portion 14 is disposed. The end face of the second end 102 of the receiving member 10 abuts against the inner wall of the photosensitive drum 3, and the metal shaft 301 passes through the through hole 15 of the receiving member 10.
該第一導件20為導體呈片狀且近似環形，其能夠有效率地傳輸電流，該第一導件20是由銅、鋁、銀…等高電導金屬物質製備而成，其貼設於該承接件10之貼設面16，該第一導件20包括一個外周緣21、數個固定孔22與一個容孔23，該外周緣21呈不規則形狀，該外周緣21具有一個第二外徑D2，該第二外徑D2為該外周緣21相對的最長距離，感光鼓2之內徑小於或等於該第二外徑D2。該外周緣21突設有至少一個第一接腳24，該外周緣21之第一接腳24抵設於感光鼓2之內緣，且該第一接腳24迫緊的設於感光鼓2之內緣時，該第一接腳24受到彎折而能夠容設於該承接件10之容槽12，本實施例中共設有四個第一接腳24，該第二外徑D2為相對的兩個第一接腳24之間的距離。該固定孔22套設於該承接件10之結合部17，金屬軸301穿設於該容孔23，該容孔23具有一個第二內徑d2，該容孔23不與金屬軸301接觸。The first guiding member 20 is formed in a sheet shape and approximately annular shape, and can transmit current efficiently. The first guiding member 20 is prepared from a high-conductivity metal material such as copper, aluminum, silver, etc. The mounting surface 16 of the receiving member 10 includes an outer peripheral edge 21, a plurality of fixing holes 22 and a through hole 23. The outer peripheral edge 21 has an irregular shape, and the outer peripheral edge 21 has a second shape. The outer diameter D2 is the longest distance of the outer peripheral edge 21, and the inner diameter of the photosensitive drum 2 is less than or equal to the second outer diameter D2. The outer peripheral edge 21 is provided with at least one first pin 24, the first pin 24 of the outer peripheral edge 21 abuts against the inner edge of the photosensitive drum 2, and the first pin 24 is tightly disposed on the photosensitive drum 2 In the inner edge, the first pin 24 is bent and can be received in the receiving slot 12 of the receiving member 10. In this embodiment, four first pins 24 are provided, and the second outer diameter D2 is opposite. The distance between the two first pins 24 . The fixing hole 22 is sleeved on the joint portion 17 of the receiving member 10. The metal shaft 301 is disposed in the hole 23, and the hole 23 has a second inner diameter d2. The hole 23 is not in contact with the metal shaft 301.
該電阻件30對於電流的流通具有阻抗能力，該電阻件30能夠避免感光鼓2受到大電流而擊穿的缺失，而能夠避免短路的情形發生。該電阻件30貼設於該第一導件20，該電阻件30具有相反的第一面31與第二面32，該電阻件30具有一個第三外徑D3，該電阻件30更包括數個固定孔33與一個容孔34。該電阻件30之第一面31電性導通該第一導件20，令該電阻件30與該第一導件20呈電接觸，該固定孔33套設於該承接件10之結合部17，金屬軸301穿設於該容孔34，該容孔34具有一個第三內徑d3，該第三內徑d3等於該第二內徑d2，該容孔34不與金屬軸301接觸。The resistor member 30 has an impedance capability for the flow of current, and the resistor member 30 can prevent the photoconductor drum 2 from being damaged by a large current and can avoid the occurrence of a short circuit. The resistor member 30 is attached to the first guiding member 20, and the resistor member 30 has an opposite first surface 31 and a second surface 32. The resistor member 30 has a third outer diameter D3, and the resistor member 30 further includes A fixing hole 33 and a hole 34 are provided. The first surface 31 of the resistor member 30 is electrically connected to the first guiding member 20, so that the resistor member 30 is in electrical contact with the first guiding member 20, and the fixing hole 33 is sleeved on the joint portion 17 of the receiving member 10. The metal shaft 301 is disposed through the hole 34. The hole 34 has a third inner diameter d3. The third inner diameter d3 is equal to the second inner diameter d2. The hole 34 is not in contact with the metal shaft 301.
該第二導件40為導體呈片狀且近似環形，其能夠有效率地傳輸電流，該第二導件40是由銅、鋁、銀…等高電導金屬物質製備而成，其電性導通該電阻件30之第二面32，該第二導件40具有一個第四外徑D4，該第四外徑D4等於該第三外徑D3。該第二導件40包括一個內周緣41與數個固定孔42，該內周緣41呈不規則形狀，該內周緣41具有一個第四內徑d4，該第四內徑d4為該內周緣41相對的最短距離，該第四內徑d4等於或小於該金屬軸301之外徑。該內周緣41突設有至少一個第二接腳43，且該內周緣41形成至少兩道凹槽44，該第二接腳43位於該兩道凹槽44之間，藉由該凹槽44而提供該第二接腳43能夠彎折的功效，該第二接腳43之端部更形成一個抵觸部431，本實施例中該內周緣41共突設有兩個第二接腳43，且該內周緣41共形成四道凹槽44，該第四內徑d4為該兩個第二接腳43的抵觸部431之間的距離。該固定孔42套設於該承接件10之結合部17，該內周緣41之第二接腳43的抵觸部431抵設於金屬軸301。藉由該第二接腳43能夠彎折的特性，令該內周緣41第二接腳43能夠確實的抵設於金屬軸301，而產生電性導通之功效。The second guiding member 40 is formed in a sheet shape and approximately annular shape, and can transmit current efficiently. The second guiding member 40 is made of high-conductivity metal materials such as copper, aluminum, silver, etc., and is electrically connected. The second surface 32 of the resistor member 30 has a fourth outer diameter D4 which is equal to the third outer diameter D3. The second guiding member 40 includes an inner peripheral edge 41 and a plurality of fixing holes 42 having an irregular shape. The inner peripheral edge 41 has a fourth inner diameter d4, and the fourth inner diameter d4 is the inner peripheral edge 41. The fourth inner diameter d4 is equal to or smaller than the outer diameter of the metal shaft 301 with respect to the shortest distance. The inner circumference 41 protrudes from the at least one second pin 43 , and the inner circumference 41 forms at least two grooves 44 , and the second pin 43 is located between the two grooves 44 , by the groove 44 The end portion of the second pin 43 further defines an abutting portion 431. In the embodiment, the inner peripheral edge 41 has two second pins 43 protruding therefrom. The inner circumference 41 forms a total of four grooves 44, and the fourth inner diameter d4 is the distance between the abutting portions 431 of the two second pins 43. The fixing hole 42 is sleeved on the joint portion 17 of the receiving member 10 , and the abutting portion 431 of the second leg 43 of the inner peripheral edge 41 abuts against the metal shaft 301 . The second pin 43 of the inner peripheral edge 41 can be reliably abutted against the metal shaft 301 by the characteristic that the second pin 43 can be bent, thereby generating electrical conduction.
該結合部17穿設於該第一導件20之固定孔22、該電阻件30之固定孔33與該第二導件40之固定孔42，該結合部17能夠防止該第一導件20、該電阻件30與該第二導件40脫離該承接件10。The joint portion 17 is disposed in the fixing hole 22 of the first guiding member 20, the fixing hole 33 of the resistor member 30 and the fixing hole 42 of the second guiding member 40. The joint portion 17 can prevent the first guiding member 20 from being removed. The resistor member 30 and the second guide member 40 are separated from the receiving member 10.
金屬軸301穿設於該穿孔15、該第一導件20之容孔23、該電阻件30之容孔34與該內周緣41。The metal shaft 301 is disposed through the through hole 15, the hole 23 of the first guide 20, the hole 34 of the resistor 30, and the inner periphery 41.
該第三外徑D3小於該第二外徑D2，該第四外徑D4也小於該第二外徑D2，本實施例中該第四外徑D4小於該第一外徑D1小於該第二外徑D2，當該導電裝置1裝設於感光鼓2時，該承接件10迫緊的裝設於感光鼓2，且確保該導電裝置1僅有該第一導件20之外周緣21與感光鼓2電性導通。The third outer diameter D3 is smaller than the second outer diameter D2, and the fourth outer diameter D4 is smaller than the second outer diameter D2. In the embodiment, the fourth outer diameter D4 is smaller than the first outer diameter D1 is smaller than the second outer diameter D1. The outer diameter D2, when the conductive device 1 is mounted on the photosensitive drum 2, the receiving member 10 is tightly mounted on the photosensitive drum 2, and ensures that the conductive device 1 has only the outer periphery 21 of the first guiding member 20 and The photosensitive drum 2 is electrically turned on.
該第四內徑d4小於該第一內徑d1、該第二內徑d2與該第三內徑d3，本實施例中該第四內徑d4小於該第一內徑d1小於該第三內徑d3，當該導電裝置1裝設於感光鼓匣3時，能夠確保該導電裝置1僅有該第二導件40之內周緣41與金屬軸301電性導通。The fourth inner diameter d4 is smaller than the first inner diameter d1, the second inner diameter d2, and the third inner diameter d3. In the embodiment, the fourth inner diameter d4 is smaller than the first inner diameter d1 and smaller than the third inner diameter. The diameter d3, when the conductive device 1 is mounted on the photosensitive drum 3, ensures that the conductive device 1 has only the inner periphery 41 of the second guide 40 electrically connected to the metal shaft 301.
當金屬軸301通電時，電流由金屬軸301傳至該第二導件40，該第二導件40將電流傳至該電阻件30，該電阻件30將電流傳至該第一導件20而傳至感光鼓2，該電阻件30提供阻抗，使流經該第一導件20之電流小於該第二導件40之電流。When the metal shaft 301 is energized, current is transmitted from the metal shaft 301 to the second guide 40, and the second guide 40 transmits current to the resistor 30, and the resistor 30 transmits current to the first guide 20. And transmitted to the photosensitive drum 2, the resistor member 30 provides an impedance such that the current flowing through the first guide member 20 is smaller than the current of the second guide member 40.
藉由增加該電阻件30而能夠控制電流大小，當該導電裝置1導通的電流具有阻抗時，該導電裝置1提供適當的阻抗能力，而改善感光鼓2因為使用一段時間而形成損耗造成的阻抗能力下降，而能夠提供符合要求的列印能力。再者，該導電裝置1的成本遠低於感光鼓2的成本，縱使該導電裝置1損耗時，使用者能夠更換價格較低廉的導電裝置1，以達到節省列印成本之功效。By increasing the resistance member 30, the magnitude of the current can be controlled. When the current conducted by the conductive device 1 has an impedance, the conductive device 1 provides an appropriate impedance capability, and the impedance of the photosensitive drum 2 due to the use of a period of time is improved. The ability to reduce the ability to provide the required printing capabilities. Moreover, the cost of the conductive device 1 is much lower than the cost of the photosensitive drum 2. Even when the conductive device 1 is worn out, the user can replace the less expensive conductive device 1 to save the printing cost.
就以上所述可以歸納出本發明具有以下之優點：As far as the above is concerned, it can be concluded that the present invention has the following advantages:
1.本發明『感光鼓之導電裝置』，該導電裝置具有控制電流大小的功效，該導電裝置直接提供適當的阻抗能力，能夠避免過大漏電電流。因為感光鼓上具有數層塗佈層，塗佈層屬於塗膜混合物，其為非均勻材質，且塗佈層之塗膜會吸水，電阻值會變低，導致絕緣性變差而漏電。而本發明之導電裝置提供均勻電阻值，阻抗不受溫濕度變化影響，令該導電裝置不受感光鼓的塗層瑕疵影響，也不受環境溫度與濕度影響，而能夠改良傳統的感光鼓品質不易控管的缺失。再者，該導電裝置能夠避免感光鼓的擊穿問題，該導電裝置之電阻值沒有局部低阻抗而讓大電流擊穿的缺失。本發明之導電裝置確實能夠提供符合要求的列印能力。1. The "conductive device of the photosensitive drum" of the present invention, the conductive device having the effect of controlling the magnitude of the current, the conductive device directly providing an appropriate impedance capability, and capable of avoiding excessive leakage current. Since the photosensitive drum has a plurality of coating layers, the coating layer belongs to a coating film mixture, which is a non-uniform material, and the coating film of the coating layer absorbs water, and the electric resistance value becomes low, resulting in deterioration of insulation and electric leakage. The conductive device of the present invention provides a uniform resistance value, and the impedance is not affected by changes in temperature and humidity, so that the conductive device is not affected by the coating 瑕疵 of the photosensitive drum, and is not affected by the ambient temperature and humidity, and can improve the quality of the conventional photosensitive drum. The lack of control is not easy. Moreover, the conductive device can avoid the breakdown problem of the photosensitive drum, and the resistance value of the conductive device has no local low impedance and the large current breakdown is lost. The conductive device of the present invention does provide the printing capability that meets the requirements.
2.本發明『感光鼓之導電裝置』，該電阻件對於電流的流通具有阻抗能力，該電阻件能夠避免感光鼓受到大電流而擊穿的缺失，而能夠避免短路的情形發生。2. The "conductive device of the photosensitive drum" of the present invention, which has an impedance capability for the flow of current, the resistor member can prevent the photosensitive drum from being subjected to a large current and the breakdown of the breakdown, and can avoid the occurrence of a short circuit.
3.本發明『感光鼓之導電裝置』，藉由該導電裝置的成本遠低於感光鼓的成本，縱使該導電裝置損耗時，使用者能夠更換價格較低廉的導電裝置，以達到節省列印成本之功效。3. The "conductive device of the photosensitive drum" of the present invention, the cost of the conductive device is much lower than the cost of the photosensitive drum, and even if the conductive device is worn out, the user can replace the cheaper conductive device to save printing The cost of the effect.
惟上所述者，僅為本發明之較佳實施例而已，當不能以之限定本發明實施之範圍，故舉凡數值之變更或等效元件之置換，或依本發明申請專利範圍所之均等變化與修飾，皆應仍屬本發明專利涵蓋之範疇。The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.
1．．．導電裝置1. . . Conductive device
10．．．承接件10. . . Receiving piece
101．．．第一端101. . . First end
102．．．第二端102. . . Second end
11．．．迫緊緣11. . . Tight edge
12．．．容槽12. . . Crate
13．．．突緣13. . . Flange
14．．．齒部14. . . Tooth
15．．．穿孔15. . . perforation
16．．．貼設面16. . . Mounting surface
17．．．結合部17. . . combination
D1．．．第一外徑D1. . . First outer diameter
d1．．．第一內徑D1. . . First inner diameter
20．．．第一導件20. . . First guide
21．．．外周緣twenty one. . . Peripheral periphery
22．．．固定孔twenty two. . . Fixed hole
23．．．容孔twenty three. . . Hole
24．．．第一接腳twenty four. . . First pin
D2．．．第二外徑D2. . . Second outer diameter
d2．．．第二內徑D2. . . Second inner diameter
30．．．電阻件30. . . Resistor
31．．．第一面31. . . First side
32．．．第二面32. . . Second side
33．．．固定孔33. . . Fixed hole
34．．．容孔34. . . Hole
D3．．．第三外徑D3. . . Third outer diameter
d3．．．第三內徑D3. . . Third inner diameter
40．．．第二導件40. . . Second guide
41．．．內周緣41. . . Inner circumference
42．．．固定孔42. . . Fixed hole
43．．．第二接腳43. . . Second pin
431．．．抵觸部431. . . Conflicting part
44．．．凹槽44. . . Groove
D4．．．第四外徑D4. . . Fourth outer diameter
d4．．．第四內徑D4. . . Fourth inner diameter
2．．．感光鼓2. . . Photosensitive drum
3．．．感光鼓匣3. . . Photosensitive drum
301．．．金屬軸301. . . Metal shaft
圖一：為本發明感光鼓、感光鼓匣與導電裝置之立體外觀圖。Figure 1 is a perspective view of the photosensitive drum, photosensitive drum and conductive device of the present invention.
圖二：為本發明感光鼓、感光鼓匣與導電裝置之立體分解圖。Figure 2 is an exploded perspective view of the photosensitive drum, photosensitive drum and conductive device of the present invention.
圖三：為本發明感光鼓、感光鼓匣與導電裝置之剖視圖。Figure 3 is a cross-sectional view showing a photosensitive drum, a photosensitive drum, and a conductive device of the present invention.
圖四：為本發明之導電裝置之立體外觀圖。Figure 4 is a perspective view of the conductive device of the present invention.
圖五：為本發明之導電裝置之立體分解圖。Figure 5 is an exploded perspective view of the conductive device of the present invention.
圖六：為本發明之導電裝置由圖四之6-6剖面線所取之剖視圖。Figure 6 is a cross-sectional view of the conductive device of the present invention taken along line 6-6 of Figure 4.
圖七：為本發明由圖六所取之細部放大圖。Figure 7 is an enlarged view of a detail of the present invention taken from Figure 6.
圖八：為本發明之導電裝置由圖四之8-8剖面線所取之剖視圖。Figure 8 is a cross-sectional view of the conductive device of the present invention taken along line 8-8 of Figure 4.
1．．．導電裝置1. . . Conductive device
10．．．承接件10. . . Receiving piece
101．．．第一端101. . . First end
102．．．第二端102. . . Second end
11．．．迫緊緣11. . . Tight edge
12．．．容槽12. . . Crate
13．．．突緣13. . . Flange
14．．．齒部14. . . Tooth
15．．．穿孔15. . . perforation
16．．．貼設面16. . . Mounting surface
17．．．結合部17. . . combination
20．．．第一導件20. . . First guide
21．．．外周緣twenty one. . . Peripheral periphery
22．．．固定孔twenty two. . . Fixed hole
23．．．容孔twenty three. . . Hole
24．．．第一接腳twenty four. . . First pin
30．．．電阻件30. . . Resistor
31．．．第一面31. . . First side
32．．．第二面32. . . Second side
33．．．固定孔33. . . Fixed hole
34．．．容孔34. . . Hole
40．．．第二導件40. . . Second guide
41．．．內周緣41. . . Inner circumference
42．．．固定孔42. . . Fixed hole
43．．．第二接腳43. . . Second pin
431．．．抵觸部431. . . Conflicting part
44．．．凹槽44. . . Groove
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100103511A TWI417688B (en) | 2011-01-28 | 2011-01-28 | Photosensitive drum of the conductive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100103511A TWI417688B (en) | 2011-01-28 | 2011-01-28 | Photosensitive drum of the conductive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201232201A TW201232201A (en) | 2012-08-01 |
| TWI417688B true TWI417688B (en) | 2013-12-01 |
Family
ID=47069515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW100103511A TWI417688B (en) | 2011-01-28 | 2011-01-28 | Photosensitive drum of the conductive device |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI417688B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153923A (en) * | 1995-11-21 | 1997-07-09 | 三田工业株式会社 | Photosensitive drum unit and ground plate used therewith |
| CN101241324A (en) * | 2007-02-07 | 2008-08-13 | 京瓷美达株式会社 | Sensitization drum unit and image forming apparatus equipped therewith |
| CN101261492A (en) * | 2007-03-08 | 2008-09-10 | 天津市纵深办公设备科技有限公司 | Drum cassette |
| CN100535786C (en) * | 2007-09-28 | 2009-09-02 | 横店集团东磁股份有限公司 | Developer roll and method of producing the same |
-
2011
- 2011-01-28 TW TW100103511A patent/TWI417688B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153923A (en) * | 1995-11-21 | 1997-07-09 | 三田工业株式会社 | Photosensitive drum unit and ground plate used therewith |
| CN101241324A (en) * | 2007-02-07 | 2008-08-13 | 京瓷美达株式会社 | Sensitization drum unit and image forming apparatus equipped therewith |
| CN101261492A (en) * | 2007-03-08 | 2008-09-10 | 天津市纵深办公设备科技有限公司 | Drum cassette |
| CN100535786C (en) * | 2007-09-28 | 2009-09-02 | 横店集团东磁股份有限公司 | Developer roll and method of producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201232201A (en) | 2012-08-01 |
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