200815203 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種列印裝置之間隙調整結構，且特 別是有關於一種光電成像的列印裝置之顯影間隙調整結 構。 【先前技術】 光電成像式列印裝置乃是藉由光電成像 ^ * V- -- (electrophotography; EPG)方式進行影像之列印。光電成像 具有數個步驟，至少包含佈電（charging)、曝光（exposure)、 顯影（developing)、轉像（transferring)、以及定像（fusing)。 當列印裝置進行影像之列印時，首先利用佈電裝置 (charger)於一感光元件（photoconductor)表面佈滿均勻電 荷，此即為佈電步驟。接著進行曝光步驟，將待列印之影 像藉由發光二極體（Light-Emitting Diode ; LED)或雷射 (laser)轉換成光訊號，照射於帶有均勻電荷之感光元件上， 而產生一相對應之靜電潛像（latent image)。 當於感光元件上形成列印所需之潛像後，即進行顯影 步驟。顯影裝置上之碳粉藉由靜電力附著於感光元件上之 潛像區，而使得靜電潛像顯影。 當完成顯影步驟後，便可將感光元件上吸附之碳粉， 利用領域習知之方法轉移至列印紙張或其他基質媒介上， 此即為轉像步驟。最後，利用一高溫滾輪（hot roller)與一壓 力滾輪（pressure roller)，對於紙張上之石炭粉進行固定，即完 成定像之步驟。 6 200815203 由於非接觸式的顯影裝置，其碳粉可利用靜電力跳躍 (jump)顯影滾軸與感光元件間之顯影間隙，而使得碳粉附著 於感光元件上之潛像區域。因此顯影間隙的控制將影響与 像的品質。 θ〜 習知技術中的感光元件可為一有機感光帶（〇化妨沁BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gap adjusting structure of a printing apparatus, and more particularly to a developing gap adjusting structure of a printing apparatus for photoelectric imaging. [Prior Art] The photoelectric imaging type printing apparatus performs image printing by photoelectric imaging ^ * V- -- (electrophotography; EPG). Photoelectric imaging has several steps, including at least charging, exposure, developing, transferring, and fusing. When the printing device performs image printing, firstly, a uniform charge is applied to the surface of a photoconductor by using a charger, which is a power-discharging step. Then, an exposure step is performed, and the image to be printed is converted into an optical signal by a light-emitting diode (LED) or a laser, and is irradiated onto the photosensitive element with uniform charge to generate a Corresponding electrostatic latent image. After the latent image required for printing is formed on the photosensitive member, the developing step is performed. The toner on the developing device is attached to the latent image area on the photosensitive member by electrostatic force to develop the electrostatic latent image. After the development step is completed, the adsorbed toner on the photosensitive member can be transferred to a printing paper or other substrate medium by a conventional method, which is a transfer step. Finally, using a hot roller and a pressure roller to fix the charcoal powder on the paper, the step of fixing is completed. 6 200815203 Due to the non-contact developing device, the toner can use electrostatic force to jump the developing gap between the developing roller and the photosensitive member, so that the toner adheres to the latent image area on the photosensitive member. Therefore, the control of the development gap will affect the quality of the image. θ~ The photosensitive element in the prior art can be an organic photosensitive belt
ph〇t〇con(iuctive belt ; 〇pc以⑴，且感光帶係套接於—支 >。構上由於’感光帶之支撐結構係利用螺絲作為鎖固 疋件因此，支擇結構會受到螺絲鎖固時的應力影響，而 :生开/文’使侍感光帶在轉動時表面會波動起伏。而顯影 裝置中之顯影滾軸（dev一ing遷物組裝後，無^ 旦的會與顯影滾軸的支撐結構產生些許的誤差（卿），影響顯 衫滾軸與感光元件間顯影間隙的精準度。 、 隙不^的兩種情形均會使得感光帶與顯影滾軸的顯影間 ΜΜ而使传^無法均勾的吸附於感光元件上，因 而影響成像的品質。 U 【發明内容】 整結：此:發:月的目的就是在提供一種列印裝置之間隙調 而接…韓持感光"°件與顯影滾㈣之顯影間隙，進 而^尚兔粉成像的品質。 、進 本發明的另一目的是為接 調整裝i，以姑授B / 顯影裝置之滾軸間隙 高滾軸支撐架接二:與顯影間隙間的差值，進而提 顯影間陳的精密度 定位顯影滾轴與感光裝置間 根據本發明之上述目的，提出-種列印裝置之間_ 7 200815203 f結構，㈣持-感光裝置與—_裝 ::元:印裝置之間隙調整結構包含-感光裝置框架:i 以及至）-感光兀件支撐件。感光 一軸向，感光元件支撐件之雨被总门 兩知係固定於軸向相對兩端之 1衣架上，且每一個感光元件支樓件具有與軸向平 订ί =狀突起。感光元件係套褒於感光裝置框架及感光 支料上。其中’顯影裝置具有至少-碳粉s，配置Ph〇t〇con(iuctive belt; 〇pc is (1), and the photoreceptor belt is sleeved on the support.] Since the support structure of the photoreceptor belt uses screws as the locking element, the support structure is subject to The effect of the stress when the screw is locked, and: the opening/texture causes the surface of the photosensitive belt to fluctuate and undulate when rotating. The developing roller in the developing device (after the assembly of the dev-ing object, there is no The support structure of the developing roller produces a slight error, which affects the precision of the developing gap between the roller and the photosensitive member. The two cases of the gap cause the development of the photosensitive belt and the developing roller. Therefore, the transmission can not be uniformly hooked on the photosensitive element, thus affecting the quality of the image. U [Summary] Consolidation: This: The purpose of the hair: the month is to provide a gap between the printing device... Han Photosensitive " ° and development roller (four) development gap, and then the quality of rabbit powder imaging. Another purpose of the invention is to adjust the assembly i to teach the B / development device roller gap high roll Shaft support bracket 2: the difference between the development gap Further, in order to improve the precision of the developing chamber, between the developing roller and the photosensitive device, according to the above object of the present invention, a structure between the printing device is proposed, (4) holding-photosensitive device and -_ loading:: yuan: The gap adjusting structure of the printing device comprises: a photosensitive device frame: i and to - a photosensitive member supporting member. The photosensitive one axial direction, the rain of the photosensitive member supporting member is fixed by the main door and the two opposite ends of the axial fixed at one of the hangers And each of the photosensitive member fulcrum members has an alignment with the axial direction. The photosensitive member is sleeved on the photosensitive device frame and the photosensitive support. The 'developing device has at least - toner s, configuration
=對應條狀突起，以藉由條狀突起支撐感光it件，進而維 持感光元件與碳粉£間之顯影間隙。每—個條狀突起且有 一圓孤表面’此am表面之半㈣為5G〜3⑼毫米。列印裝 置之間隙調整結構更包含複數個定位托架，配置於軸向相 =兩端之感光裝置框架上，以定位感光元件支撐件。列印 裝置之間隙調整結構更包含複數個螺絲，以藉由螺絲將定 位托木固疋於感光裝置框架上。定位托架具有定位之複數 個突起，每一個感光元件支撐件之兩端各具有一凹槽對應 於此突起，以藉由凹槽與突起之耦合，進而將感光元件支 撐件定位於定位托架上。其中每一個定位托架具有一傾斜 角度，使疋位於定位托架之感光元件支撐件，可對應碳粉 匣進行一角度調整。列印裝置之間隙調整結構更包含複數 個挾持件，配置於軸向之相對兩端，以浮動式地固定定位 托架及感光元件支撐件於感光裝置框架。每一個挾持件具 有複數個定位孔，配置於對應定位托架之突起，其中此定 位孔係與突起卡合，以限定感光元件支撐件於平行軸向之 位移。感光元件支撐件之材料可為一合金、金屬或塑膠， 且較佳地是經過一陽極處理之鋁合金。每一個碳粉匣可更 200815203 包含一滾軸間隙調整裝置，每一個滾軸間隙調整裝置包含 一顯影滾軸與一滾軸支撐架。顯影滾軸係平行配置於對2 每一個感光元件支撐件，以送出碳粉匣内之碳粉，使碳: 吸附於感光元件上。滾軸支撐架係用以固定顯影滾軸，其 中滾軸支撐架之兩端各具有一定位凸緣，以與感光元件支 撑件接觸，進㈣定顯影滾轴之位置。定位凸緣較佳地係 為一圓弧凸緣，且滾軸支撐架兩端之圓弧凸緣與顯影滾軸 較佳地係為一共軸配置，且圓弧凸緣之半徑略大於顯影滾 軸之半後，且兩者間之差值不大於顯影間隙。滾軸間隙調 整裝置可更包含至少-薄片’貼附於滾軸支撐架兩端之圓 弧凸緣上，用於補償顯影滾軸與感光元件間顯影間隙之差 值。此差值之範圍依製造之精密度而控制在一小範圍内， 如15μπι至65μιη之間，薄片之厚度可選自於由2〇μΜ、 25μιη、30陶、35μιη、40μπι、45师、50_、55μηι，及 6〇_ 所組成之群組或其他不同尺寸之群組。薄片之材料可為一 聚酯樹脂(my㈣或為一金屬。其中每一個薄片非相對感光 70件之兩端具有一黏膠，以藉由黏膠將薄片固定於定位凸 緣。或藉由彈片或扣件等方式亦可將薄片固定於定位凸緣。 本發明之另一態樣係為一種顯影裝置之滾軸間隙調整 I置，此顯影裝置係用以提供一列印裝置成像所需之碳 粉。滾軸間隙調整裝置包含具有一顯影滾軸之至少一碳粉 匣、固定顯影滾軸之一滾軸支撐架，以及貼附於滾軸支撐 2上之至少一間隙調整元件，以提高顯影裝置中顯影滾軸 疋位之精確度。滾軸支撐架之兩端各具有一圓弧凸緣，且 圓弧凸緣與顯影滾軸較佳地係為一共輛配置，且圓弧凸緣 9 200815203 之半傻略大於顯影滚軸之半徑。間隙調整元件係、為至 :片，貼附於滾軸支樓架兩端之圓弧凸緣。薄片之材料可 ::聚賴月旨(响)，或為一金屬。每一個薄片非相對感 件之兩端具有—黏膠’以藉由黏膠將薄片固定於圓弧 凸緣。或藉由彈片或扣件等方式亦可將薄片固定於 緣。 本發明之列印裝置之間隙調整結構係藉由感光元件支 撐件支擇碳粉投射區之感光元件，以維持感光元件與對應 顯影裳置之碳粉£之顯影滾軸間的顯影間隙，且感光元件 支撐件與定位托架間，係使用突起與凹槽的浮動核合作 為固定方式’因此可減少習知中支撐結構因螺絲組装所帶 來的應力造成的形變影響。顯影裝置之碳粉匣中更包含滾 轴間隙調整裝置’藉由薄片補償顯影滾軸與感光元件間的 顯影間隙，以提高滾軸支撐架接觸感光元件支撐件以定位 頒〜滾軸的精检度，使感光元件與顯影滾軸間的顯影間隙 維持一定，進而提高碳粉成像的均勻性及成像的品質。 【實施方式】 以下將以配合圖式詳細說明本發明之精神，任何所 屬技術領域中具有通常知識者在瞭解本發明之較佳實施 例後田可由本發明所教示之技術，加以改變及修飾， 其並不脫離本發明之精神與範圍。 參照第1圖，其係繪示本發明之列印裝置之間隙調整 結構一較佳實施例之側視圖。列印裝置包含一感光裝置1⑽ 與一顯影裝置160。感光裝置100包含一感光裝置框架 200815203 11()、一感光兀件150,與至少一感光元件支撐件13〇。感 光讀150較佳係為一感光帶，套裝於感光裝置框架ιι〇 上，並藉由複數個轉動滾輪114,使感光元件15〇沿箭頭A 之捲動方向捲動。顯影裝置160具有複數個碳粉匣wo，藉 由感光元件150之捲動，碳粉匣170之碳粉可跳躍至感光 元件150上之碳粉投射區（潛像區），以形成影像。感光裝置 1〇〇中之感光元件支撐件130，係配置於對應碳粉匣17〇之 感光裝置框架110上，並支撐對應之感光元件15〇上之碳 粉投射區。此列印裝置可藉由感光元件支撐件13〇維持感 光元件150與碳粉匣170間之顯影間隙d，進而提高碳粉成 像的品質。 參照第2A圖及第2B圖，其係分別繪示本發明之列印 裝置之間隙調整結構另一較佳實施例之爆炸圖及組合立體 視圖。感光裝置框架110具有一軸向H2,感光元件支撐件 130之兩端則是固定於軸向112相對兩端之感光裝置框架 110上’且每一感光元件支撐件130係對應於顯影裝置16〇 中’每一碳粉匣170之顯影滾軸172(參考第4圖）之位置， 用以支樓$反粉投射區之感光元件150。每一個感光元件支樓 件130均具有一條狀突起132，且條狀突起132具有一圓弧 表面以與碳粉投射區之感光元件150接觸，且條狀突起132 係與軸向112平行。感光裝置支撐件13〇之材料較佳係為 一合金、金屬或塑膠，例如··較佳的是經過陽極處理(an〇dic process)的鋁合金，以提高表面的光滑度。 感光裝置100可包含轉動滾輪114，配置於感光裝置框 架110上，且轉動滾輪114係平行於轴向112。藉由轉動此 11 200815203 轉動滾輪114,以捲動套裝於感光裝置框架11()及感光元件 支撐件130上之感光元件15〇。感光裝置ι〇〇可更包含複數 個定位托架120,配置於軸向112相對兩端之感光裝置框架 110上。定位托架120較佳係利用複數個螺絲118，穿過定 位托架120及感光裝置框架110上的螺絲孔116,以將定位 托架120固定於感光裝置框架11〇上。定位托架12〇上可 具有定位用之複數個突起122,而感光裝置支撐件13〇的兩 &則具有對應之複數個凹槽134，藉由凹槽134麵合於突 起丨22,以將感光元件支樓件13〇浮動式地（fl〇ating)定位於 定位托架120上。定位托架12〇具有一特定傾斜角度，使 得定位於定位托架12〇上之複數個感光元件支撐件13〇，可 以相對於所對應之碳粉匣17〇進行角度調整，使感光元件 150可平順地套裝於感光元件支撐件13()上。凹槽與突 起122之形狀較佳係為圓形。感光裝置1〇〇可更包含複數 個挾持件140，配置於軸向112的相對兩端，挾持件14〇 具有複數個定位孔142,配置於對應突起122處，用以與定 位托条120上之突起122卡合，以限定感光元件支撐件13〇 於平行軸向112方向之位移。 藉由上述挾持件140與定位托架120的卡合方式，以 將感光元件支撐件13〇固定於感光裝置框架11〇上，將可 使得感光元件支撐件13〇於y方向上保持浮動的固定方 式t因此，可減少過去支撐結構因使用螺絲組裝所造成的 形變，使感光元件150在感光裝置1〇〇上滾動時，表面不 會出現波動不平的情形。 簽妝第3圖，其係繪示本發明之列印裝置之間隙調整 12 200815203 結構又一較佳實施例之側視圖。列印裝置之間隙調整結構 係用以維持感光元件15G與碳粉£ 17G間之顯影間隙d。此 實施例中，感光15G係為-感光帶，且套裝於感光裝 置框架110及感光元件支撐件130上。且碳粉匣170之配 置較佳地係為一對一地對應於感光元件支撐件13〇上之條 狀圓弧突起132,以藉由條狀圓弧突起132支撐碳粉投射區 之感光元件150,進而維持感光元件15〇與碳粉匣17〇間的 顯影間隙d。條狀圓弧突起132之圓弧表面之半徑較佳地係 50〜300毫米。本實施例中，條狀突起132之圓弧表面約為 125毫米，以使感光帶150可在條狀突起132之圓弧表面上 順利地滾動。感光元件150較佳係為一有機感光帶（〇巧抓“ photoconductor belt ; OPC belt)。感光元件支撐件 13〇 與顯 影裝置之碳粉匣170之數量較佳係同為四個，以對應四色 之碳粉匣170。 參考第4圖，其係繪示本發明之列印裝置之間隙調整 結構中，其碳粉匣之一滾軸間隙調整裝置一較佳實施例之 示意圖。碳粉匣170包含有一顯影滾軸172，以及用來固定 顯影滾軸172之一滾軸支撐架174。碳粉匣170係藉由轉動 顯影滾轴172’ ^^出奴粉匡170中的碳粉，並利用靜電力將 碳粉吸附於感光元件150上的碳粉投射區。由於，顯影滾 軸172與滾轴支撐架174在製造時會出現些許的公差，因 此，顯影滾轴Π2組裝於滾軸支撐架174時的相對位置會 出現些許的個別差異。如此一來，將使得顯影滾軸172與 感光元件15 0間的顯影間隙d無法達到一致均勻值，導致 碳粉吸附的狀況不佳，影響到成像的品質。因此，顯影裝 13 200815203 置之妷粉匣170需要一間隙調整裝置，以精確調整顯影滾 軸172的位置。 同#參照第3圖及第4圖，碳粉匣17〇中，顯影滾軸 172係安裝於滾軸支撐架174中，而滾軸支撐架174的兩端 具有一疋位凸緣178，以接觸感光元件支撐件13〇，進而固 “ 疋顯景》滾軸172的安裝位置。定位凸緣178較佳係為一圓 - 弧凸緣。定位凸緣丨乃係抵住感光元件支撐件130,而使得 顯影滾軸172與感光元件150間出現顯影間隙d。顯影滾軸 • m與定位凸緣I78之圓弧凸緣較佳地係為一共軸配置，且 將定位凸緣178的半徑設計為略大於顯影滾軸172的半 徑，但兩者間之差值不可大於顯影間隙d。由於定位凸緣 178與顯影滾軸172的組裝誤差值而使得顯影間隙d值無法 保持精密。故碳粉匣17〇之滾軸間隙調整裝置具有複數個 間隙調整元件，例如薄片18〇，薄片18〇可貼附於滾軸支撐 架174上，以調整顯影滾軸172與定位凸緣178間之組裝 誤差，進而提高顯影裝置160中之顯影滾軸172定位時^ • 精密度。將薄片I80貼附於滾軸支撐架174之定位凸緣178 上，藉由貼附適當厚度之薄片18〇於定位凸緣178與條狀 突起132之間，以調整顯影滾軸172與感光元件15〇間的 4 距離，使其接近所期望之顯影間隙d。如此一來，當滾軸支 - 撐:174接觸感光元件支撐件U0以固定顯影滾軸172時， 可藉由薄片180提馬顯影滾軸172定位之精密度，進而有 ^地維持顯影滾軸172與感光元件15G間的顯影間隙d，以 提南碳粉成像品質。薄片180可直接利用定位凸緣178斑 感光元件支撐件13〇接觸時之正向力固定。或者，於薄片 14 200815203 180兩端部，亦即，非相對於感光元件150表面之薄片180 的末端，可塗佈有-轉，以㈣黏膠將薄片副固定於 疋位凸緣178上。或藉由彈片或扣件等方式亦可將薄片18〇 固定於定位凸緣178。 U軸172與疋位凸緣！ 78間的差值之範圍依製造 - 之精密度而控制在—小範圍内，如15_ i 65_内。而 ^ 補償狀薄片18G的厚度，較佳地是在不同的厚度之中， 挑選-個最接近差值的尺寸。舉例而言，薄片⑽的厚度 φ 可為 ¥、25障、3〇_、35_、卿m、45_ ' ¥、 55μπι，或是60μηι所組成之群組或其他不同尺寸之群组。 薄片⑽之材料可為一金屬。薄片18〇之材料可為一塑勝’ 較佳係為一聚酯樹脂（mylar)。。 由上述本發明較佳實施例可知，應用本發明具有下列 優點。本發明之列印裝置之間隙調整結構係藉由感光元件 支撐件支樓石炭粉投射區之感光元件，以維持感光元件與對 應顯影裝置之碳粉匣之顯影滾軸間的顯影間隙，且感光元 • 件支撐件與定位托架間，係使用突起與凹槽的浮動式耦合 作為固定方式，因此可減少習知中支撐結構因螺絲組裝所 帶來的應力造成的形變影響。顯影裝置之碳粉匣中更包含 ‘ 滾軸間隙調整裝置，藉由薄片補償顯影滾軸與滾軸支撐架 間的差值，以提高滾軸支撐架接觸感光元件支撐件以定位 顯影滾軸的精確度，使感光元件與顯影滾軸間的顯影間隙 維持一定，進而提高碳粉成像的均勻性及成像的品質。 雖然本發明已以一較佳實施例揭露如上，然其並非用 以限定本發明，任何所屬技術領域中具有通常知識者，在 15 200815203 不脫離本發明之精神和範圍内，當可作各種之更動與潤 飾，因此本發明之保護範圍當視後附之申請專利範圍所界 定者為準。 1 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、優點與實施例 月b更明顯易懂’所附圖式之詳細說明如下：= Corresponding strip-like projections to support the photosensitive member by the strip-like projections, thereby maintaining the developing gap between the photosensitive member and the toner. Each of the strip-like protrusions has a rounded surface. The half (four) of the am surface is 5G to 3 (9) mm. The gap adjusting structure of the printing device further comprises a plurality of positioning brackets disposed on the frame of the photosensitive device at the axial phase = both ends to position the photosensitive member support. The gap adjustment structure of the printing device further includes a plurality of screws for fixing the positioning pallet to the photosensitive frame by screws. The positioning bracket has a plurality of protrusions, and each of the two ends of the photosensitive element support has a groove corresponding to the protrusion to couple the photosensitive element support to the positioning bracket by the coupling of the groove and the protrusion. on. Each of the positioning brackets has an inclined angle so that the photosensitive member support member of the positioning bracket can be adjusted at an angle corresponding to the toner cartridge. The gap adjusting structure of the printing device further includes a plurality of holding members disposed at opposite ends of the axial direction to floatably fix the positioning bracket and the photosensitive member support member to the photosensitive device frame. Each of the holding members has a plurality of positioning holes disposed in the protrusions of the corresponding positioning brackets, wherein the positioning holes are engaged with the protrusions to define displacement of the photosensitive member supports in the parallel axial direction. The material of the photosensitive member support member may be an alloy, metal or plastic, and is preferably an anodized aluminum alloy. Each of the toner cartridges 200815203 includes a roller gap adjusting device, and each of the roller gap adjusting devices includes a developing roller and a roller support frame. The developing roller is disposed in parallel with each of the photosensitive member supports of the pair 2 to feed the toner in the toner cartridge so that the carbon: is adsorbed on the photosensitive member. The roller support frame is for fixing the developing roller, wherein each of the two ends of the roller support frame has a positioning flange for contacting the photosensitive member supporting member to advance (4) the position of the developing roller. The positioning flange is preferably a circular arc flange, and the arc flanges at both ends of the roller support frame and the developing roller are preferably arranged in a coaxial configuration, and the radius of the circular arc flange is slightly larger than the developing roller. After half of the axis, and the difference between the two is not greater than the development gap. The roller gap adjusting device may further include at least a sheet affixed to the circular arc flange at both ends of the roller support frame for compensating for a difference between the developing gap between the developing roller and the photosensitive member. The range of the difference is controlled within a small range according to the precision of manufacture, such as between 15 μm and 65 μm, and the thickness of the sheet may be selected from 2 μμΜ, 25 μm, 30, 35 μm, 40 μπι, 45 division, 50_ Group of 55μηι, and 6〇_ or groups of other different sizes. The material of the sheet may be a polyester resin (my) or a metal. Each of the sheets has a glue at both ends of the opposite photosensitive member 70 to fix the sheet to the positioning flange by the adhesive or by the elastic sheet. The sheet may be fixed to the positioning flange by means of a fastener or the like. Another aspect of the invention is a roller gap adjustment I of a developing device for providing carbon for imaging of a printing device. The roller gap adjusting device comprises at least one toner cartridge having a developing roller, a roller support frame fixed to the developing roller, and at least one gap adjusting member attached to the roller support 2 to improve development The accuracy of the developing roller clamping position in the device. The roller support frame has a circular arc flange at each end, and the arc flange and the developing roller are preferably configured in a common configuration, and the arc flange 9 The half of 200815203 is slightly larger than the radius of the developing roller. The gap adjusting component is: the piece, attached to the arc flange at both ends of the roller branch. The material of the sheet can be: ), or a metal. Each sheet is non-relative The two ends have a "adhesive" to fix the sheet to the arcuate flange by the adhesive, or the sheet can be fixed to the edge by means of a spring or a fastener, etc. The gap adjusting structure of the printing device of the present invention The photosensitive element supporting the toner projection area is supported by the photosensitive member support member to maintain a developing gap between the photosensitive member and the developing roller corresponding to the developed toner, and between the photosensitive member support member and the positioning bracket The use of the protrusion and the floating core of the groove cooperates in a fixed manner. Therefore, the deformation effect of the conventional support structure due to the stress caused by the screw assembly can be reduced. The toner cartridge of the developing device further includes a roller gap adjusting device. The developing gap between the developing roller and the photosensitive element is compensated by the sheet to improve the precision of the roller support to contact the photosensitive member support member for positioning the roller to maintain the developing gap between the photosensitive member and the developing roller. Further improving the uniformity of the toner image formation and the quality of the image. [Embodiment] The spirit of the present invention will be described in detail below with reference to the drawings, and A person skilled in the art will appreciate that the preferred embodiment of the present invention can be modified and modified by the teachings of the present invention without departing from the spirit and scope of the present invention. A side view of a preferred embodiment of the gap adjusting structure of the printing device. The printing device comprises a photosensitive device 1 (10) and a developing device 160. The photosensitive device 100 comprises a photosensitive device frame 200815203 11 (), a photosensitive member 150, and at least A photosensitive element supporting member 13 is preferably a photosensitive belt, which is set on the photosensitive device frame ιι, and the photosensitive member 15 is rolled in the scrolling direction of the arrow A by a plurality of rotating rollers 114. The developing device 160 has a plurality of toner cartridges wo, and by the rolling of the photosensitive member 150, the toner of the toner cartridge 170 can jump to the toner projection region (latent image region) on the photosensitive member 150 to form an image. . The photosensitive member support member 130 of the photosensitive device 1 is disposed on the photosensitive device frame 110 corresponding to the toner cartridge 17 and supports the toner projection region on the corresponding photosensitive member 15''. This printing apparatus can maintain the developing gap d between the photosensitive element 150 and the toner cartridge 170 by the photosensitive member supporting member 13, thereby improving the quality of the toner image formation. Referring to Figures 2A and 2B, there are shown exploded views and combined perspective views of another preferred embodiment of the gap adjusting structure of the printing apparatus of the present invention. The photosensitive device frame 110 has an axial direction H2, and both ends of the photosensitive member supporting member 130 are fixed to the photosensitive device frame 110 at opposite ends of the axial direction 112' and each photosensitive member supporting member 130 corresponds to the developing device 16 The position of the developing roller 172 (refer to FIG. 4) of each of the toner cartridges 170 is used to support the photosensitive member 150 of the anti-powder projection area. Each of the photosensitive member branches 130 has a strip-like projection 132, and the strip-like projection 132 has a circular arc surface to be in contact with the photosensitive member 150 of the toner projection area, and the strip projection 132 is parallel to the axial direction 112. The material of the photosensitive member support member 13 is preferably an alloy, a metal or a plastic, for example, an aluminum alloy which is preferably an anodized process to improve the smoothness of the surface. The photosensitive device 100 can include a rotating roller 114 disposed on the photosensitive device frame 110, and the rotating roller 114 is parallel to the axial direction 112. By rotating the 11 200815203 rotating roller 114, the photosensitive member 15A fitted to the photosensitive member frame 11 () and the photosensitive member supporting member 130 is rolled. The photosensitive device ι can further include a plurality of positioning brackets 120 disposed on the photosensitive device frame 110 at opposite ends of the axial direction 112. Preferably, the positioning bracket 120 utilizes a plurality of screws 118 through the positioning bracket 120 and the screw holes 116 in the photosensitive device frame 110 to secure the positioning bracket 120 to the photosensitive device frame 11A. The positioning bracket 12 can have a plurality of protrusions 122 for positioning, and the two holders of the photosensitive device support 13 have a corresponding plurality of grooves 134, and the grooves 134 are surface-fitted to the protrusions 22 to The photosensitive member branch member 13 is positioned floating on the positioning bracket 120. The positioning bracket 12 〇 has a specific inclination angle, so that the plurality of photosensitive element supporting members 13 定位 positioned on the positioning bracket 12 〇 can be angularly adjusted with respect to the corresponding toner 匣 17 ,, so that the photosensitive element 150 can be It is smoothly placed on the photosensitive member support member 13 (). The shape of the grooves and projections 122 is preferably circular. The photosensitive device 1 can further include a plurality of holding members 140 disposed at opposite ends of the axial direction 112. The holding member 14b has a plurality of positioning holes 142 disposed at the corresponding protrusions 122 for positioning on the brackets 120. The projections 122 are engaged to define displacement of the photosensitive member support member 13 in the direction of the parallel axis 112. By the manner in which the above-mentioned holding member 140 is engaged with the positioning bracket 120, the photosensitive member support member 13 is fixed to the photosensitive device frame 11A, and the photosensitive member supporting member 13 can be kept floating in the y direction. In the manner t, it is possible to reduce the deformation of the support structure in the past due to the use of the screw assembly, so that the surface of the photosensitive member 150 does not fluctuate when rolling on the photosensitive device 1〇〇. Figure 3 is a side view showing a gap adjustment of the printing apparatus of the present invention. 12 200815203 A further preferred embodiment of the structure. The gap adjusting structure of the printing device is for maintaining the developing gap d between the photosensitive member 15G and the toner of £17G. In this embodiment, the photosensitive 15G is a photoreceptor belt and is placed on the photosensitive member frame 110 and the photosensitive member support member 130. The arrangement of the toner cartridges 170 is preferably one-to-one corresponding to the strip-shaped arcuate projections 132 on the photosensitive member support member 13 to support the photosensitive member of the toner projection region by the strip-shaped circular projections 132. 150, and further maintaining the developing gap d between the photosensitive member 15A and the toner cartridge 17〇. The radius of the arcuate surface of the strip-shaped arcuate projection 132 is preferably 50 to 300 mm. In the present embodiment, the arcuate surface of the strip-shaped projection 132 is about 125 mm so that the photosensitive belt 150 can smoothly roll on the arcuate surface of the strip-like projection 132. The photosensitive member 150 is preferably an organic photosensitive belt (the photoconductor belt; OPC belt). The photosensitive member support member 13 is preferably four in number with the toner cartridge 170 of the developing device. Color toner cartridge 170. Referring to Fig. 4, there is shown a schematic view of a preferred embodiment of a roller gap adjusting device for toner cartridge in the gap adjusting structure of the printing device of the present invention. 170 includes a developing roller 172, and a roller support frame 174 for fixing the developing roller 172. The toner cartridge 170 is used to rotate the developing roller 172' to remove the toner in the slave powder 170. The toner is adsorbed on the toner projection area on the photosensitive member 150 by electrostatic force. Since the developing roller 172 and the roller support frame 174 are slightly manipulated during manufacture, the developing roller Π 2 is assembled to the roller support. There will be some slight differences in the relative position of the frame 174. As a result, the development gap d between the developing roller 172 and the photosensitive member 150 will not reach a uniform uniform value, resulting in poor toner adsorption, affecting Quality of imaging Therefore, the developing device 13 200815203 is provided with a gap adjusting device for precisely adjusting the position of the developing roller 172. Referring to Figures 3 and 4, in the toner cartridge 17, the developing roller 172 The roller support frame 174 is mounted on the roller support frame 174, and both ends of the roller support frame 174 have a clamping flange 178 for contacting the photosensitive member support member 13 to secure the mounting position of the roller 172. The locating flange 178 is preferably a round-arc flange. The positioning flange 抵 is against the photosensitive member support 130 such that a developing gap d occurs between the developing roller 172 and the photosensitive member 150. The arc of the developing roller • m and the positioning flange I78 is preferably in a coaxial configuration, and the radius of the positioning flange 178 is designed to be slightly larger than the radius of the developing roller 172, but the difference therebetween Can not be larger than the development gap d. The value of the developing gap d cannot be kept precise due to the assembly error value of the positioning flange 178 and the developing roller 172. Therefore, the roller gap adjusting device of the toner cartridge 17 has a plurality of gap adjusting members, such as a sheet 18, which can be attached to the roller support frame 174 to adjust the between the developing roller 172 and the positioning flange 178. The assembly error, which in turn increases the positioning of the developing roller 172 in the developing device 160. The sheet I80 is attached to the positioning flange 178 of the roller support frame 174, and is attached between the positioning flange 178 and the strip protrusion 132 by attaching a sheet 18 of appropriate thickness to adjust the developing roller 172 and the photosensitive member. The distance between the turns of 15 turns so that it approaches the desired development gap d. In this way, when the roller support-support 174 contacts the photosensitive member support member U0 to fix the developing roller 172, the precision of the positioning of the developing roller 172 can be improved by the sheet 180, thereby maintaining the developing roller. The developing gap d between the 172 and the photosensitive element 15G is image quality of the southern toner. The sheet 180 can be directly fixed by the positive force when the positioning flange 178 is pressed by the photosensitive member support member 13 . Alternatively, at both ends of the sheet 14 200815203 180, that is, at the end of the sheet 180 which is not opposite to the surface of the photosensitive member 150, a turn may be applied to fix the sheet pair to the yoke flange 178 with (4) adhesive. The sheet 18A can also be fixed to the positioning flange 178 by means of a spring or a fastener. U-axis 172 and clamp flange! The range of the difference between the 78s is controlled within a small range, such as 15_i 65_, depending on the precision of the manufacturing. And ^ the thickness of the compensating sheet 18G, preferably among the different thicknesses, is selected to be the closest to the difference. For example, the thickness φ of the sheet (10) may be a group consisting of ¥, 25 、, 3 〇 _, 35 _, qing m, 45 _ ' ¥ , 55 μπι, or 60 μηι or a group of other different sizes. The material of the sheet (10) may be a metal. The material of the sheet 18 can be a plastic one, preferably a polyester resin. . It will be apparent from the above-described preferred embodiments of the present invention that the application of the present invention has the following advantages. The gap adjusting structure of the printing device of the present invention is used to maintain the developing gap between the photosensitive member and the developing roller of the toner cartridge corresponding to the developing device by the photosensitive member of the photosensitive member supporting portion of the carbonaceous powder projection area, and is photosensitive Between the member support member and the positioning bracket, the floating coupling of the protrusion and the groove is used as a fixing manner, thereby reducing the deformation effect caused by the stress caused by the screw assembly in the conventional support structure. The toner cartridge of the developing device further includes a 'roller gap adjusting device for compensating the difference between the developing roller and the roller support frame by the sheet to improve the contact of the roller support frame with the photosensitive member support member for positioning the developing roller. Accuracy keeps the development gap between the photosensitive element and the developing roller constant, thereby improving the uniformity of toner imaging and the quality of imaging. While the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious, the detailed description of the drawings is as follows:
第1圖係繪示本發明之列印裝置之間隙調整結構一較 佳實施例之側視圖。 第2A圖係繪示本發明之列印裝置之間隙調整結構另 一較佳實施例之爆炸圖。 弟2B圖係繪示如繁9 a m , 弟2A圖之本發明之列印裝置之 調整結構之組合立體視圖。 ^ 第3圖係緣示本發明 月之列印裝置之間隙調整結構又一 較佳貫施例之側視圖。 弟4圖係繪示本發明 甘山^ 月之列印裝置之間隙調整結構中， 八石反叙匣之滾軸間隙調整 ^ 在置一較佳貫施例之示意圖。 【主要元件符號說明】 1G0 =感光裝置 Π 2 :軸向 116 ·螺絲孔 120 :定位托架 13〇 :感光元件支撐件 ιι〇·感光裝置框架 114 :轉動滾輪 U8 :螺絲 U2 :突起 132 :條狀突起 16 200815203 134 :凹槽 150 :感光元件 170 :碳粉匣 174 :滾軸支撐架 180 :薄片 . y :方向 140 :挾持件 160 :顯影裝置 172 :顯影滾軸 178 :定位凸緣 d :顯影間隙 A :捲動方向BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side elevational view of a preferred embodiment of a gap adjusting structure for a printing apparatus of the present invention. Fig. 2A is an exploded view showing another preferred embodiment of the gap adjusting structure of the printing apparatus of the present invention. The 2B diagram shows a combined perspective view of the adjustment structure of the printing apparatus of the present invention as shown in Fig. 9 a m and Fig. 2A. ^ Fig. 3 is a side view showing still another preferred embodiment of the gap adjusting structure of the printing apparatus of the present invention. Figure 4 is a schematic diagram showing the adjustment of the roller gap of the eight-stone anti-synchronization in the gap adjustment structure of the printing device of the Ganshan ^ month. [Main component symbol description] 1G0 = photosensitive device Π 2: axial 116 · screw hole 120: positioning bracket 13 〇: photosensitive member support ιι 〇 photosensitive device frame 114: rotating roller U8: screw U2: projection 132: strip Protrusion 16 200815203 134 : Groove 150 : Photosensitive element 170 : Toner 174 : Roller holder 180 : Sheet. y : Direction 140 : Holding member 160 : Developing device 172 : Developing roller 178 : Positioning flange d : Developing gap A: scrolling direction
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