A7 _____B7 五、發明説明（l ) ~~~~~ 本發明係有關於一種佈電器，其適用於如影印機或 雷射印表機等成像裝置。 — 經濟部中央橾準局員工消费合作社印策 (請先閱讀背面之注意事項再填寫本頁) 習知的成像裝置之架構，請參閲第丨圓，以習知的 雷射印表機為例，其通常包括感光鼓1〇、光源12、顯 影部14、轉寫部16、定像部18、清潔部2〇、除電燈泡 22、及佈電器24。其中，感光鼓1〇表面先經佈電器24 均勻充電後，再受光源12的照射，使得感光鼓1〇表面 上光照之部位與沒有光照之部位間產生電位差。顯影部 14則係用以使碳粉附著至感光鼓1〇上。然後，在轉寫 部16 ’紙張經佈電器佈電後帶有正電壓，感光鼓丨〇上 的碳粉會被紙張上的正電壓吸引，而轉移至紙張上。此 時，碳粉僅是被紙張上的靜電力吸附，此種力量相當微 弱’因此，紙張接下來會被送到定像部18，經過高溫高 壓滾輪’而使得碳粉融化附著在紙張上。感光鼓1〇在 經過轉寫部16，將吸附在其上的碳粉轉移至紙張後，由 於其上還會殘留一些碳粉，影響後續的印刷工作，所以 必須先經過清潔部2〇將殘留在感光鼓10上的碳粉清除 掉，再經過除電燈泡22將殘餘在感光鼓10上的電荷除 去’使其感光鼓10上的電位再降至接近零電位。然後 便可重新充電’準備進行下一個印刷的動作。 請參閱第2圖’習知的佈電器包括一金屬線30， 其平行設置於距感光鼓10約1〇至2〇Inm的地方；一金 屬框32’用以遮蔽該金屬線3〇’且當施加高電壓於該 金屬線30上時，金屬框32為接地。 本紙張歧適用巾ggj家轉（CNS)从見格（2lGx297公楚） 經濟部中央梯準局員工消费合作社印袋 A7 B7 五、發明説明（2 ) 在上述的架構中’為了要使感光鼓表面充電，佈電 器必須提供-4KV至-6KV的電壓，藉以產生電暈放電 (corona discharge)的現象，此種放電的現象可以有效地 使感光鼓的表面充電。然而’為了要在佈電器上提供這 麼高的電壓’必須提供昂貴的電路及保護措施，以避免 電壓崩潰。再者’隨著電暈放電，會產生例如臭氧等， 其會影響感光鼓表面’使得成像品質變差，並影響人體 健康。另外’對於習知的佈電器而言，大部分的能量並 未被用來產生成像所須的離子，或者所產生的離子被臭 氧（〇3)及氮氧化物（NOx)或是金屬框等吸收，因而導致成 像裝置操作上的低效率。再者，由於佈電器係在一根細 金屬線上施加高電壓，以產生電暈，所以如果其效率過 低，而在該金屬線上施加了過量的電流，則甚至可能會 損毁金屬線。一旦金屬線被損壞，成像裝置便無法再正 常工作。 又，請參閱第3圓，因為在佈電器的金屬框32上 經常是處於高電壓的狀態，在其靠近感光鼓:· 10的位置 33上_，有可能會吸引一些碳粉34，造成碳粉堆積在金 屬框32的角落上，這些額外的碳粉34可能會在感光鼓 10充電時，被吸引至感光鼓10上，進而影響到成像的 品質。 有鑑於此，本發明之目的乃在於提供一種成像裝置 之佈電器，由於其具有高效率，所以可在低電壓下操 作，因而可以克服習知佈電器的缺點》 4 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 111 n 1111IV3 111 . ~~ 訂—一一~ 111 —-^i (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（3 ) 本發明之另一個目的在於提供一種成像裝置之佈 電器，其可避免在金屬框上堆積碳粉，而導致成像品質 的劣化。 為了達成上述之目的，本發明主要係使佈電器的金 屬框中有氣體流通，如此當氣體流通時，一則可以將產 生的臭氧及氮氧化物分子吹走，減少電暈放電所產生的 電子被吸收的機會，提昇佈電器的效率；再則氣體流通 時’會自金屬框與感光鼓間的狹缝流出，進而將可能會 堆積在金屬框外緣的碳粉吹走，避免其影響到成像品 質。 為了進一步說明本發明之架構、特點與優點，茲配 合附圖說明實施例如下，其中： 第1圖係繪示習知雷射印表機之架構的圖式。 第2圖係繪示習知成像裝置中之佈電器的架構之 圖式。 第3圖係繪示在習知成像裝置之佈電器的金屬框 上碳粉堆積的情形。 第4圖係繪示本發明之成像裝置之佈電器的第一 實施例的架構圖式》 第5圖係繪示在本發明之成像裝置之佈電器内氣 體流量與外加電壓之間關係的圖式》 第6圖係繪示本發明之成像裝置之佈電器的第二 實施例的架構囷式》 第7圖係繪示本發明之成像裝置之佈電器的第三 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 11 I 11 : I :-訂~ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（4 ) 實施例的架構圖式。 參考標號的說明 1〇，1〇〇感光鼓、12光源、14顯影部、16轉寫部、 18定像部、20清潔部、22除電燈泡、24,40,50,60佈 電器、42,52,62 金屬線、44,54,64 金屬框、46,58,66a〜66f 氣體輸入口、56,68氣體導管。 實施例的說明 請參閲第4圖，根據本發明之第一實施例，成像裝 置之佈電器40係包括：一金屬線42，其平行設置於感 光鼓100旁邊；一金屬框44,用以遮蔽該金屬線42,且 在該金屬框44側邊具有氣體輸入口 46,用以導入氣體。 氣體被導入至金屬框44内後，必須經由佈電器40與感 光鼓100間的細縫流出，而會在細縫間產生氣流，因此 可以避免在佈電器40上堆積碳粉，同時也可提供清潔 感光鼓100的功用。 上述金屬線的直徑約為0.05 mm，其與感光鼓間的 距離約為5〜10 mm ° 導入之氣體可為空氣，其流量大約 在2〜L0 l/min。一般在未導入氣體至佈電器中時，金屬 線上須外加大約-4〜-6KV的電壓，但是在導入氣體時， 所須外加的電壓可降至-2~-5KV。請參閱第5圓，其繪 示氣體流量與外加電壓間的關係，由圖中可知當氣體流 量越大，所須外加的電壓越低。 請參閱第6圖，根據本發明之第二實施例，成像裝 置之佈電器50係包括：一金屬線52,其平行設置於感 本紙張尺度適用中國國家標準（CNS ) M規格（2丨OX297公漤） (請先閲讀背面之注意事項再填寫本頁) 訂 A7 五、發明説明（5 ) 光鼓100旁邊；一金屬框54,用以遮蔽該金屬線52; — 氣體導管56，設置於前述金屬框54内部，且沿著該氣 體導管56側邊有複數個氣體輸出口 58，用以使氣體被 均勻地導入至金屬框54内。本實施例與上述第一實施 例之差別主要在於利用氣體導管將氣體導入至金屬框 中，如此可利用氣體導管側邊之各個氣體輸出口控制氣 體的流量，藉以使得氣體可以均勻地自佈電器與感光鼓 間的細縫流出，避免因氣體流量不均或不足，而導致在 佈電器的某些位置上無法有效地將可能堆積在金屬框 上的碳粉吹走。 請參閱第7圖，根據本發明之第三實施例，成像裝 置之佈電器60係包括：一金屬線62，其平行設置於感 光鼓100旁邊；一金屬框64’用以遮蔽該金屬線62,且 沿著該金屬框64側邊具有複數個氣體輸入口 66a〜66f ; 一氣體導管68，包括有複數根支管68a〜68f，分別連接 至該複數個氣體輸入口 66a〜66f，用以使氣艎被均勻地 導入至金屬框64内。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁)A7 _____B7 V. Description of the Invention (l) ~~~~~ The present invention relates to a cloth appliance, which is suitable for imaging devices such as photocopiers or laser printers. —Institute of Consumer Cooperatives of the Central Government Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). For the structure of the conventional imaging device, please refer to the first circle. The conventional laser printer is For example, it usually includes a photoreceptor drum 10, a light source 12, a developing section 14, a transfer section 16, a fixing section 18, a cleaning section 20, a static elimination bulb 22, and a cloth distributor 24. Among them, the surface of the photosensitive drum 10 is first uniformly charged by the electrical distribution device 24, and then irradiated by the light source 12, so that a potential difference is generated between the light-sensing part on the surface of the photosensitive drum 10 and the non-lighting part. The developing section 14 is used to attach toner to the photosensitive drum 10. Then, in the transfer portion 16 ', the paper is charged with a positive voltage by the electrical distribution device, and the toner on the photoconductor drum will be attracted by the positive voltage on the paper and transferred to the paper. At this time, the toner is only attracted by the electrostatic force on the paper, and this force is very weak '. Therefore, the paper is then sent to the fixing section 18 and passed through the high-temperature and high-pressure roller', so that the toner melts and adheres to the paper. After the photoconductor drum 10 passes the transfer unit 16 and transfers the toner adsorbed on it to the paper, since some toner remains on it, which affects subsequent printing work, it must first pass through the cleaning unit 20 to remove the remaining toner. The toner on the photoconductor drum 10 is removed, and the electric charge remaining on the photoconductor drum 10 is removed through the static elimination bulb 22, so that the potential on the photoconductor drum 10 is reduced to near zero potential again. Then it can be recharged 'to prepare for the next printing operation. Please refer to FIG. 2 'The conventional electrical distribution device includes a metal wire 30, which is arranged in parallel to a distance of about 10 to 20 Inm from the photosensitive drum 10; a metal frame 32' is used to cover the metal wire 30 'and When a high voltage is applied to the metal wire 30, the metal frame 32 is grounded. This paper is applicable to paper ggj home transfer (CNS) from the grid (2lGx297 Gongchu) Central Government Office of the Ministry of Economic Affairs of the consumer consumer cooperative printing bag A7 B7 V. Description of the invention (2) In the above structure 'in order to make photosensitive drums For surface charging, the distributor must provide a voltage of -4KV to -6KV to generate a corona discharge phenomenon, which can effectively charge the surface of the photosensitive drum. However, in order to provide such a high voltage on the electrical distribution device, expensive circuits and protection measures must be provided to avoid voltage collapse. Moreover, with the corona discharge, for example, ozone will be generated, which will affect the surface of the photoreceptor drum, make the imaging quality worse, and affect human health. In addition, for conventional cloth appliances, most of the energy is not used to generate the ions necessary for imaging, or the generated ions are ozone (〇3) and nitrogen oxides (NOx) or metal frames, etc. Absorption, thus resulting in inefficient operation of the imaging device. Furthermore, since the distributor applies high voltage to a thin metal wire to generate corona, if its efficiency is too low and excessive current is applied to the metal wire, it may even damage the metal wire. Once the metal wire is damaged, the imaging device can no longer operate normally. Also, please refer to the third circle, because the metal frame 32 of the electrical distribution device is always in a high voltage state. At its position 33 near the photoconductor drum: · 10, it may attract some toner 34, causing carbon The toner is accumulated on the corners of the metal frame 32. These additional toners 34 may be attracted to the photosensitive drum 10 when the photosensitive drum 10 is charged, thereby affecting the image quality. In view of this, the purpose of the present invention is to provide an electrical distribution device for an imaging device. Because of its high efficiency, it can be operated at low voltage, which can overcome the shortcomings of conventional electrical distribution devices. (CNS) A4 size (210X297 mm) 111 n 1111IV3 111. ~~ Order—One-One ~ 111 —- ^ i (Please read the notes on the back before filling out this page) Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (3) Another object of the present invention is to provide an electrical distribution device for an imaging device, which can avoid the accumulation of toner on a metal frame and cause deterioration of imaging quality. In order to achieve the above-mentioned object, the present invention mainly makes the metal frame of the electrical appliance circulate gas, so when the gas circulates, one can blow off the generated ozone and nitrogen oxide molecules, and reduce the electrons generated by the corona discharge. Absorbed opportunities to improve the efficiency of the electrical distribution equipment; when the gas flows, it will flow out from the slit between the metal frame and the photosensitive drum, and then blow away the toner that may accumulate on the outer edge of the metal frame to avoid affecting the imaging quality. In order to further explain the architecture, features, and advantages of the present invention, the embodiments are described below with reference to the accompanying drawings, in which: FIG. 1 is a diagram showing the structure of a conventional laser printer. Fig. 2 is a diagram showing the structure of a distribution device in a conventional imaging device. Fig. 3 is a view showing a state in which toner is deposited on a metal frame of a conventional electrical imaging device. FIG. 4 is a diagram showing the structure of the first embodiment of the electrical distribution device of the imaging device of the present invention. FIG. 5 is a diagram showing the relationship between the gas flow rate and the applied voltage in the electrical distribution device of the imaging device of the present invention. Figure 6 shows the architecture of the second embodiment of the electrical distribution device of the imaging device of the present invention. Figure 7 shows the third paper size of the electrical distribution device of the imaging device of the present invention. (CNS) A4 specifications (210X297 mm) 11 I 11: I: -Order ~ (Please read the notes on the back before filling out this page) Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (4 ) Architecture diagram of the embodiment. Explanation of reference numerals 10, 100 photoreceptor drum, 12 light source, 14 developing section, 16 transfer section, 18 fixing section, 20 cleaning section, 22 static elimination bulb, 24, 40, 50, 60 cloth appliances, 42, 52,62 metal wire, 44,54,64 metal frame, 46,58,66a ~ 66f gas inlet, 56,68 gas conduit. For a description of the embodiment, please refer to FIG. 4. According to a first embodiment of the present invention, the electrical distribution device 40 of the image forming apparatus includes: a metal wire 42 which is disposed parallel to the photosensitive drum 100; a metal frame 44 for The metal wire 42 is shielded, and a gas input port 46 is provided on the side of the metal frame 44 for introducing a gas. After the gas is introduced into the metal frame 44, it must flow out through the slit between the distributor 40 and the photosensitive drum 100, and air flow will be generated between the slits. Therefore, it is possible to avoid the accumulation of toner on the distributor 40, and it can also provide The function of cleaning the photosensitive drum 100. The diameter of the above-mentioned metal wire is about 0.05 mm, and the distance between the metal wire and the photosensitive drum is about 5 ~ 10 mm. The gas introduced can be air, and the flow rate is about 2 ~ L0 l / min. Generally, when the gas is not introduced into the electrical distribution device, a voltage of about -4 to -6KV must be applied to the metal wire. However, when the gas is introduced, the externally applied voltage can be reduced to -2 to -5KV. Please refer to the fifth circle, which shows the relationship between the gas flow rate and the applied voltage. It can be seen from the figure that the larger the gas flow rate, the lower the applied voltage. Please refer to FIG. 6. According to a second embodiment of the present invention, the electrical distribution device 50 of the imaging device includes: a metal wire 52, which is arranged in parallel with the paper size and is applicable to the Chinese National Standard (CNS) M specification (2 丨 OX297 (Public note) (Please read the precautions on the back before filling this page) Order A7 V. Description of the invention (5) Next to the drum 100; a metal frame 54 to cover the metal wire 52; Inside the aforementioned metal frame 54, there are a plurality of gas outlets 58 along the side of the gas duct 56, so that the gas is uniformly introduced into the metal frame 54. The difference between this embodiment and the first embodiment mentioned above is that gas is introduced into the metal frame by using a gas pipe. In this way, each gas outlet on the side of the gas pipe can be used to control the flow of the gas, so that the gas can be evenly distributed from the electrical appliance The fine slits between the photosensitive drum and the photosensitive drum flow out, to avoid the uneven or insufficient gas flow, which can not effectively blow away the toner that may accumulate on the metal frame in some locations of the electrical distributor. Please refer to FIG. 7. According to a third embodiment of the present invention, the electrical distribution device 60 of the imaging device includes: a metal wire 62, which is disposed beside the photosensitive drum 100 in parallel; and a metal frame 64 ′ for shielding the metal wire 62. And a plurality of gas input ports 66a ~ 66f along the side of the metal frame 64; a gas conduit 68, including a plurality of branch pipes 68a ~ 68f, respectively connected to the plurality of gas input ports 66a ~ 66f, so that The gas pan is uniformly introduced into the metal frame 64. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (Please read the precautions on the back before filling this page)
*1T 上述第三實施例同樣可使氣趙均勻地自佈電器與 感光鼓間的細缝流出，藉以避免因氣體流量不均或不 足，而導致無法有效地將可能堆積在金屬框上的碳粉吹 走的問題。 前面的幾個實施例主要的差異在於導入氣體的方 式不同，但其基本特點則均相同，亦即利用將氣體貫入 佈電器的金屬框内，藉以提昇佈電器的效率，同時利用 Α7 Β7 五、發明説明（ό ) —- 氣體自佈電器與感光鼓間的細縫流出時所造成的氣 流，將堆積在佈電器金屬框邊緣的碳粉吹走。 至於在第二實施例與第三實施财，其所使用的佈 電器之規格或氣體的流量等，均可與第一實施例中的說 明相同。同樣地，氣想的流量越大，則所須的外加電壓 越小β 此外，在上述實施例中，用以說明的佈電器均未包 括格狀電極，但實際上本發明同樣適用於包括格狀電極 的佈電器（SC0R0TR0N)，或是其他不同型式的佈電器 中，例如在美國專利第4,507,373號或第5,272,5〇7號中 所揭露者。 I-^-I.------皱------1Τ------線-i (請先閲讀背面之注意事項再填寫本頁) 用 適 度 尺 張 紙 _I本 經濟部中央標準局貝工消費合作社印裝* 1T The third embodiment described above also allows the gas to flow out uniformly from the fine gap between the electrical distribution device and the photosensitive drum, thereby avoiding the inability to effectively deposit carbon that may be deposited on the metal frame due to uneven or insufficient gas flow. The problem of powder blowing away. The main difference between the previous embodiments is that the way of introducing the gas is different, but the basic characteristics are the same, that is, the gas is penetrated into the metal frame of the distributor to improve the efficiency of the distributor. At the same time, Α7 Β7 is used. DESCRIPTION OF THE INVENTION (ό) —- The air flow caused by the gas flowing out from the slit between the distributor and the photosensitive drum blows away the toner accumulated on the edge of the distributor's metal frame. As for the specifications of the second embodiment and the third embodiment, the specifications of the electrical distribution equipment, the gas flow rate, and the like can be the same as those described in the first embodiment. Similarly, the larger the desired flow rate, the smaller the required applied voltage β. In addition, in the above embodiments, the distributors used for illustration do not include grid electrodes, but the present invention is equally applicable to grids including grids. Distributors with a shape electrode (SC0R0TR0N), or other different types of distributors, such as those disclosed in US Patent No. 4,507,373 or No. 5,272,507. I-^-I .------ Wrinkle ------ 1Τ ------ Line-i (Please read the precautions on the back before filling this page) Use a moderate ruled paper _I Printed by Shellfish Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs