JPS643859U - - Google Patents
Info
- Publication number
- JPS643859U JPS643859U JP9281087U JP9281087U JPS643859U JP S643859 U JPS643859 U JP S643859U JP 9281087 U JP9281087 U JP 9281087U JP 9281087 U JP9281087 U JP 9281087U JP S643859 U JPS643859 U JP S643859U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- elastic body
- toner supply
- spindle
- penetrating
- 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
- 230000000149 penetrating effect Effects 0.000 claims 3
- 239000013013 elastic material Substances 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図〜第５図は本考案の実施例を示しており
、第１図は第一実施例に係るトナー供給装置の縦
断面図、第２図はそのトナー供給ローラの斜視図
、第３図はコピー枚数とトナー供給量との関係図
、第４図は第二実施例に係るトナー供給装置のト
ナー供給ローラの斜視図、第５図はその変形例に
係るトナー供給ローラの縦断面図をそれぞれ示し
、また第６図〜第８図は従来のトナー供給装置を
示しており、第６図はその縦断面図、第７図はそ
のトナー供給ローラの斜視図、第８図は第６図の
部分拡大図である。
符号説明、２……現像器、３……トナーボツク
ス、４……トナー供給部、５……トナー供給ロー
ラ、８……上方押圧部、９……下方押圧部、１２
……支軸、１３……非浸透質弾性体、１４……多
孔質弾性体、１５……弾性体、１６……トナー。
1 to 5 show embodiments of the present invention, in which FIG. 1 is a longitudinal sectional view of a toner supply device according to the first embodiment, FIG. 2 is a perspective view of the toner supply roller, and FIG. 4 is a perspective view of the toner supply roller of the toner supply device according to the second embodiment, and FIG. 5 is a longitudinal sectional view of the toner supply roller according to a modification thereof. 6 to 8 show a conventional toner supply device, FIG. 6 is a longitudinal sectional view thereof, FIG. 7 is a perspective view of its toner supply roller, and FIG. It is a partially enlarged view of the figure. Description of symbols, 2... Developing device, 3... Toner box, 4... Toner supply section, 5... Toner supply roller, 8... Upper pressing section, 9... Lower pressing section, 12
... Support shaft, 13 ... Non-penetrating elastic body, 14 ... Porous elastic body, 15 ... Elastic body, 16 ... Toner.
Claims (1)
と、このトナーボツクスのトナー供給部に回動可
能に設けられ、支軸とこの支軸に嵌着されその外
周面に多数の孔部を有する弾性体とで構成される
トナー供給ローラを備え、このトナー供給ローラ
の孔部に充填させたトナーボツクス内のトナーを
現像器側で吐出させて現像器内へトナーを供給す
るトナー供給装置において、上記弾性体を、支軸
側から順次嵌着させた非浸透質弾性体と多孔質弾
性体とで構成したことを特徴とするトナー供給装
置。 (2) 上記非浸透質弾性体が、トナー粒径より小
さな気泡径を有する多孔質弾性材により構成され
ていることを特徴とする実用新案登録請求の範囲
第１項記載のトナー供給装置。 (3) 上記非浸透質弾性体が、上記多孔質弾性体
側にトナー侵入防止層を有する多孔質弾性材によ
り構成されていることを特徴とする実用新案登録
請求の範囲第１項記載のトナー供給装置。[Claims for Utility Model Registration] (1) A toner box disposed on the upper part of the developing device, a toner box rotatably provided in the toner supply section of the toner box, and a spindle fitted on the spindle. A toner supply roller is provided with an elastic body having a large number of holes on its outer circumferential surface, and the toner in the toner box filled with the holes of the toner supply roller is discharged from the developer side into the developer. A toner supply device for supplying toner, characterized in that the elastic body is constituted by a non-penetrating elastic body and a porous elastic body, which are fitted in order from the spindle side. (2) The toner supply device according to claim 1, wherein the non-penetrating elastic body is made of a porous elastic material having a bubble diameter smaller than the toner particle diameter. (3) The toner supply according to claim 1, wherein the non-penetrating elastic body is made of a porous elastic material having a toner intrusion prevention layer on the side of the porous elastic body. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9281087U JPS643859U (en) | 1987-06-18 | 1987-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9281087U JPS643859U (en) | 1987-06-18 | 1987-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643859U true JPS643859U (en) | 1989-01-11 |
Family
ID=31317255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9281087U Pending JPS643859U (en) | 1987-06-18 | 1987-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643859U (en) |
-
1987
- 1987-06-18 JP JP9281087U patent/JPS643859U/ja active Pending