JPS6271644U - - Google Patents

Description

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

第１図は本考案一実施例の構成図、第２図はト
ナー層厚規制部材の加圧を別の方式で行なう実施
例の構成図、第３図及び第４図は別実施例の構成
図、第５図はトナーの層厚規制部材を鈍角態位に
設定したときのトナー層規制作用等を説明するた
めの図、第６図は上記規制部材を鈍角態位に設定
したときのトナー層規制作用等を説明するための
図、第７図は上記規制部材のトナー担持ローラに
対する接触態様を示す図、第８図は上記規制部材
の当接端の角度を説明するための図である。 ２……現像装置、６……現像剤担持体、７……
現像剤層厚規制部材。 FIG. 1 is a configuration diagram of an embodiment of the present invention, FIG. 2 is a configuration diagram of an embodiment in which the toner layer thickness regulating member is pressurized using a different method, and FIGS. 3 and 4 are configuration diagrams of another embodiment. Figure 5 is a diagram for explaining the toner layer regulating effect when the toner layer thickness regulating member is set in the obtuse angle position, and Fig. 6 is a diagram for explaining the toner layer regulating effect etc. when the toner layer thickness regulating member is set in the obtuse angle position. FIG. 7 is a diagram illustrating the manner in which the regulating member contacts the toner carrying roller; FIG. 8 is a diagram illustrating the angle of the contact end of the regulating member. . 2...Developing device, 6...Developer carrier, 7...
Developer layer thickness regulating member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ローラ状の現像剤担持体の周面に担持された現
像剤で、潜像担持体上の静電潜像を現像する現像
装置において、現像剤の層厚を規制するための現
像剤層厚規制部材の一端を、前記現像剤担持体の
周面に当接せしめ、前記一端と、現像剤担持体と
の当接位置における接線に対して、この接線と現
像剤層厚規制部材との成す角度が、現像剤担持体
の回転方向より見て１１０°乃至１３５°の範囲
の鈍角となるように現像剤層厚規制部材の配設態
位を定め、かつ、前記鈍角をθとして、前記規制
部材の一端の現像剤進入側のエツジ部の角度を（
π‐θ‐β）とし、このβを０°以上、１０°以
下とした上、前記配設態位の方向に、同規制部材
を移動自在に支持させると共に、同規制部材を当
接方向に移動付勢せしめたことを特徴とする現像
装置。 Developer layer thickness regulation for regulating the developer layer thickness in a developing device that develops an electrostatic latent image on a latent image carrier with a developer carried on the circumferential surface of a roller-shaped developer carrier. One end of the member is brought into contact with the circumferential surface of the developer carrier, and an angle formed between this tangent and the developer layer thickness regulating member with respect to a tangent at the contact position between the one end and the developer carrier. The developer layer thickness regulating member is arranged so as to form an obtuse angle in the range of 110° to 135° as viewed from the rotational direction of the developer carrier, and the obtuse angle is θ, and the regulating member The angle of the edge on the developer entrance side at one end of (
π-θ-β), and this β is set to 0° or more and 10° or less, and the regulating member is supported movably in the direction of the arrangement position, and the regulating member is supported in the abutting direction. A developing device characterized by being biased to move.