JPH0311253U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案による現像装置の正面断面図
、第２図は該現像装置の平面断面図、第３図は該
現像装置の現像剤循環搬送部の斜視図、第４図は
現像剤の投入と循環搬送の関係を示す現像装置の
略示的断面図、第５図は該現像装置の略示的側面
図、第６図は該現像装置の要部斜視図である。 １……像担持体（感光体ドラム）、２……現像
装置本体（ケーシング）、２Ａ……仕切り壁、４
……現像スリーブ（現像剤担持体）、６……主撹
拌手段、７……第一搬送手段、８……第二搬送手
段、１０……飛び込み規制板、１１……トナー補
給容器、１３……トナー補給ローラ、１４……ホ
ツパー、１６……仕切り板、７１……受け皿部材
、７１Ａ……現像剤落下孔、７１Ｂ……落下孔、
７１Ｃ……仕切り壁部、７１Ｄ……障壁部、７２
……搬送スクリユー、７３……現像剤投入口、７
４……開口、８１……搬送スクリユー、Ｄ……現
像剤、Ｔ……補給新規トナー。 FIG. 1 is a front sectional view of the developing device according to this invention, FIG. 2 is a plan sectional view of the developing device, FIG. 3 is a perspective view of the developer circulating conveyance section of the developing device, and FIG. FIG. 5 is a schematic side view of the developing device, and FIG. 6 is a perspective view of essential parts of the developing device. 1... Image carrier (photosensitive drum), 2... Developing device main body (casing), 2A... Partition wall, 4
. . . Developing sleeve (developer carrier), 6 . . . Main stirring means, 7 . ... Toner supply roller, 14 ... Hopper, 16 ... Partition plate, 71 ... Receiver member, 71A ... Developer drop hole, 71B ... Drop hole,
71C...Partition wall part, 71D...Barrier part, 72
...Conveyance screw, 73...Developer inlet, 7
4...Opening, 81...Conveying screw, D...Developer, T...Replenishing new toner.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 像担持体に近接対向させて現像剤担持体を設け
像担持体上の静電潜像に現像剤を付着させて可視
像化する現像装置において、現像装置本体内の現
像剤を撹拌して前記現像剤担持体へ供給する主撹
拌手段と、前記現像剤を前記現像剤担持体の軸方
向に搬送する第一搬送手段と、この第一搬送手段
の搬送方向とは反対の方向に前記現像剤を搬送す
る第二搬送手段とを有し、前記第二搬送手段に対
向配置した前記主撹拌手段の外周に近接するとと
もに、該主撹拌手段の回転軸と前記第二搬送手段
の回転軸とを含む平面より上方に、主撹拌手段か
ら第二搬送手段への現像剤の進入を阻止する仕切
り壁を設けたことを特徴とする現像装置。 In a developing device in which a developer carrier is provided in close opposition to the image carrier and the developer is applied to an electrostatic latent image on the image carrier to make it visible, the developer in the main body of the developing device is stirred. a main stirring means for supplying the developer to the developer carrier; a first conveyance means for conveying the developer in the axial direction of the developer carrier; and a main stirring means for conveying the developer in the axial direction of the developer carrier; a second conveying means for conveying the agent, and is close to the outer periphery of the main stirring means disposed opposite to the second conveying means, and has a rotating shaft of the main stirring means and a rotating shaft of the second conveying means. 1. A developing device comprising a partition wall above a plane including the main stirring means to prevent developer from entering the second conveying means.