JPS6199169U - - Google Patents
Info
- Publication number
- JPS6199169U JPS6199169U JP18070484U JP18070484U JPS6199169U JP S6199169 U JPS6199169 U JP S6199169U JP 18070484 U JP18070484 U JP 18070484U JP 18070484 U JP18070484 U JP 18070484U JP S6199169 U JPS6199169 U JP S6199169U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- toner supply
- supply roll
- layer forming
- box
- 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
- 238000007790 scraping Methods 0.000 claims description 3
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案のトナー供給装置を有する現像
装置の概略断面図、第２図はトナーの帯電分布を
示すグラフ、第３図はコピー枚数とトナー供給量
との関係を示すグラフである。
１０：現像装置、１２：感光ドラム、２６：ト
ナー供給装置、２８：トナーボツクス、３０：ト
ナー供給ロール、３２：トナー層形成ブレード、
３６：かき落しブレード。
FIG. 1 is a schematic sectional view of a developing device having a toner supply device of the present invention, FIG. 2 is a graph showing the charge distribution of toner, and FIG. 3 is a graph showing the relationship between the number of copies and the amount of toner supplied. 10: developing device, 12: photosensitive drum, 26: toner supply device, 28: toner box, 30: toner supply roll, 32: toner layer forming blade,
36: Scraping blade.
Claims (1)
随して設けられたトナー供給装置において、該ト
ナー供給装置のトナーボツクス内に収容されたト
ナーに直接接触して回転するトナー供給ロールを
トナーボツクス下部に設け、該トナー供給ロール
上のトナー付着量を一定量に制御すると同時にト
ナーに摩擦帯電により電荷を付与するトナー層形
成ブレードをトナー供給ロールに軸方向で圧接す
るように設けると共に、該トナー層形成ブレード
に対してトナー供給ロールの回転方向の下流側に
トナー供給ロール表面からトナーをかき落して現
像装置内にトナーを落下させるトナーかき落し手
段を設けたことを特徴とするトナー供給装置。 In a toner supply device attached to a developing device that visualizes an electrostatic latent image on a photoconductor, a toner supply roll that rotates in direct contact with the toner contained in a toner box of the toner supply device is used to supply toner. A toner layer forming blade is provided at the bottom of the box to control the amount of toner adhering to the toner supply roll to a constant amount and at the same time apply an electric charge to the toner by frictional charging, and is provided in pressure contact with the toner supply roll in the axial direction. A toner supply device characterized in that a toner scraping means is provided on the downstream side of the toner layer forming blade in the rotational direction of the toner supply roll for scraping off the toner from the surface of the toner supply roll and dropping the toner into a developing device. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18070484U JPS6199169U (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18070484U JPS6199169U (en) | 1984-11-30 | 1984-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6199169U true JPS6199169U (en) | 1986-06-25 |
Family
ID=30738259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18070484U Pending JPS6199169U (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6199169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63195677A (en) * | 1987-02-10 | 1988-08-12 | Ricoh Co Ltd | Fine particle replenishing device |
-
1984
- 1984-11-30 JP JP18070484U patent/JPS6199169U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63195677A (en) * | 1987-02-10 | 1988-08-12 | Ricoh Co Ltd | Fine particle replenishing device |
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