JPS6326852U - - Google Patents
Info
- Publication number
- JPS6326852U JPS6326852U JP11838586U JP11838586U JPS6326852U JP S6326852 U JPS6326852 U JP S6326852U JP 11838586 U JP11838586 U JP 11838586U JP 11838586 U JP11838586 U JP 11838586U JP S6326852 U JPS6326852 U JP S6326852U
- Authority
- JP
- Japan
- Prior art keywords
- regulating member
- developer
- layer thickness
- developer layer
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 230000001154 acute effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の一実施例の構成図、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鋭角態位に設定
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
する接触態位を示す図、第８図は、現像剤層厚規
制部材に作用する加圧力と、トナーの付着量及び
帯電量の関係を示す図である。
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 block diagram of an embodiment of the present invention, Fig. 2 is a block diagram of an embodiment in which the toner layer thickness regulating member is pressurized using a different method, and Figs. 3 and 4 are diagrams of another embodiment. 5 is a diagram for explaining the toner layer regulating effect when the toner layer thickness regulating member is set at an obtuse angle position, and FIG. 6 is a diagram showing the toner layer when the regulating member is set at an acute angle position. FIG. 7 is a diagram showing the contact state of the regulating member with respect to the toner carrying roller, and FIG. 8 is a diagram showing the pressure force acting on the developer layer thickness regulating member and the adhesion of toner. FIG. 3 is a diagram showing the relationship between the charge amount and the charge amount. 2...Developing device, 6...Developer carrier, 7...
Developer layer thickness regulating member.
Claims (1)
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、現像剤の層厚を規定するための現
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鈍角θ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、この配設
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し、
上記現像剤層厚規制部材の、上記現像剤担持体に
対しての当接端を鋭角にし、この角度αを（π−
θ）の近傍の角度とし、上記現像剤層厚規制部材
または上記現像剤担持体のいずれか一方、もしく
は双方を弾性部材とし、上記現像剤層厚規制部材
への加圧力を０．５ｇｆ／mm〜５ｇｆ／mmの範囲
に定めたことを特徴とする現像装置。 In a developing device that develops an electrostatic latent image on a latent image carrier with a developer supported on the peripheral surface of a roller-shaped developer carrier, developer layer thickness is used to define the developer layer thickness. One end of the regulating member is brought into contact with the circumferential surface of the developer carrier, and the relationship between this tangent and the developer layer thickness regulating member is determined with respect to the tangent at the contact position between the one end and the developer carrier. The arrangement position of the developer layer thickness regulating member is determined so that the angle becomes an obtuse angle θ when viewed from the rotation direction of the developer carrier, and the regulating member is moved in the direction of this arrangement position. While freely supporting the regulating member, the regulating member is biased to move in the abutting direction,
The contact end of the developer layer thickness regulating member with respect to the developer carrier is made at an acute angle, and this angle α is (π−
θ), one or both of the developer layer thickness regulating member and the developer carrier is an elastic member, and the pressing force on the developer layer thickness regulating member is 0.5 gf/mm. A developing device characterized in that the developing device is set in a range of 5 gf/mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11838586U JPS6326852U (en) | 1986-08-01 | 1986-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11838586U JPS6326852U (en) | 1986-08-01 | 1986-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6326852U true JPS6326852U (en) | 1988-02-22 |
Family
ID=31004787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11838586U Pending JPS6326852U (en) | 1986-08-01 | 1986-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6326852U (en) |
-
1986
- 1986-08-01 JP JP11838586U patent/JPS6326852U/ja active Pending
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