JPH0318553U - - Google Patents
Info
- Publication number
- JPH0318553U JPH0318553U JP7840389U JP7840389U JPH0318553U JP H0318553 U JPH0318553 U JP H0318553U JP 7840389 U JP7840389 U JP 7840389U JP 7840389 U JP7840389 U JP 7840389U JP H0318553 U JPH0318553 U JP H0318553U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- roller
- toner replenishing
- opening
- replenishing
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図はこの考案の一実施例であるトナー補給
装置を示す要部拡大断面図、第２図はトナー補給
ローラの軸方向の位置と腰の強さとの関係を表す
図、第３図はトナーホツパ内の補給トナーの残量
が少なくなつた状態を示す断面図、第４図はトナ
ー補給装置及び現像装置を示す断面図、第５図は
他の実施例を示すトナー補給装置の断面図、第６
図はトナー補給装置の変更例を示す断面図、第７
図はこの考案の現像装置の一実施例である画像形
成装置としての複写機の内部構造を示す概略図で
ある。
Ａ……トナー補給装置、１……現像装置本体、
２……トナーホツパ、２０……開口、３……トナ
ー補給ローラ、３０……切り込み。
Fig. 1 is an enlarged sectional view of the main parts of a toner replenishing device which is an embodiment of this invention, Fig. 2 is a diagram showing the relationship between the axial position of the toner replenishing roller and the stiffness, and Fig. 3 is a diagram showing the relationship between the axial position of the toner replenishing roller and the stiffness. 4 is a sectional view showing a state where the amount of replenishment toner remaining in the toner hopper is low; FIG. 4 is a sectional view showing a toner replenishing device and a developing device; FIG. 5 is a sectional view of a toner replenishing device showing another embodiment; 6th
The figure is a sectional view showing a modified example of the toner replenishing device.
The figure is a schematic diagram showing the internal structure of a copying machine as an image forming apparatus which is an embodiment of the developing device of this invention. A...Toner supply device, 1...Developing device main body,
2... Toner hopper, 20... Opening, 3... Toner supply roller, 30... Notch.
Claims (1)
多孔性のトナー補給ローラを設け、当該トナー補
給ローラの回転によつて、補給トナーを開口に引
き込んで現像装置本体内に落下補給するトナー補
給装置において、上記トナー補給ローラの外周に
、腰の強さを略平均化するための切り込みを設け
ていることを特徴とするトナー補給装置。 ２ トナーホツパの底部の開口に、弾性を有する
多孔性のトナー補給ローラを設け、当該トナー補
給ローラの回転によつて、補給トナーを開口に引
き込んで現像装置本体内に落下補給するトナー補
給装置において、上記トナー補給ローラが、腰の
強さを略平均化すべく、複数に分割されているこ
とを特徴とするトナー補給装置。[Claims for Utility Model Registration] 1. An elastic porous toner replenishment roller is provided in the opening at the bottom of the toner hopper, and the rotation of the toner replenishment roller draws the replenishment toner into the opening and into the developing device main body. A toner replenishing device that replenishes falling toner, characterized in that a notch is provided on the outer periphery of the toner replenishing roller to substantially equalize stiffness. 2. A toner replenishing device in which an elastic porous toner replenishing roller is provided in an opening at the bottom of a toner hopper, and by rotation of the toner replenishing roller, replenishing toner is drawn into the opening and dropped into the developing device main body, A toner replenishing device characterized in that the toner replenishing roller is divided into a plurality of parts so that the strength of the toner replenishing roller is approximately averaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078403U JPH08678Y2 (en) | 1989-07-03 | 1989-07-03 | Toner supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989078403U JPH08678Y2 (en) | 1989-07-03 | 1989-07-03 | Toner supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0318553U true JPH0318553U (en) | 1991-02-22 |
| JPH08678Y2 JPH08678Y2 (en) | 1996-01-10 |
Family
ID=31621647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989078403U Expired - Lifetime JPH08678Y2 (en) | 1989-07-03 | 1989-07-03 | Toner supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08678Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5786865A (en) * | 1980-11-20 | 1982-05-31 | Fuji Xerox Co Ltd | Toner supply device of electrophotographic copying machine |
-
1989
- 1989-07-03 JP JP1989078403U patent/JPH08678Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5786865A (en) * | 1980-11-20 | 1982-05-31 | Fuji Xerox Co Ltd | Toner supply device of electrophotographic copying machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08678Y2 (en) | 1996-01-10 |