JPS6181671U - - Google Patents
Info
- Publication number
- JPS6181671U JPS6181671U JP16585184U JP16585184U JPS6181671U JP S6181671 U JPS6181671 U JP S6181671U JP 16585184 U JP16585184 U JP 16585184U JP 16585184 U JP16585184 U JP 16585184U JP S6181671 U JPS6181671 U JP S6181671U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- guide member
- state
- flow port
- photosensitive drum
- 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
Description
図面は本考案の実施例を示し、第１図は現像剤
の移送並びに還元装置の展開断面図、第２図は複
写機の要部の詳細図、第３図は現像剤移送装置の
斜視図、第４図は第１図の−線断面図、第５
図はヘリカルコイルと螺旋翼との連結部の分解斜
視図、第６図及び第７図は夫々第１図の−線
断面に相当する別実施例の断面図である。
１……感光ドラム、４…現像部、１２…現像ス
リーブ、１６…ケース壁、２７…筒体、２８…ガ
イド部材、２９…付勢機構、３０…螺旋翼、３１
…推力受け部材、ｂ…回収現像剤、ｃ…流下口、
ｄ…連通口。
The drawings show an embodiment of the present invention; FIG. 1 is a developed sectional view of a developer transport and reduction device, FIG. 2 is a detailed view of the main parts of the copying machine, and FIG. 3 is a perspective view of the developer transport device. , FIG. 4 is a sectional view taken along the - line in FIG. 1, and FIG.
The figure is an exploded perspective view of a connecting portion between a helical coil and a spiral blade, and FIGS. 6 and 7 are sectional views of other embodiments corresponding to the - line cross section of FIG. 1, respectively. DESCRIPTION OF SYMBOLS 1... Photosensitive drum, 4... Developing part, 12... Developing sleeve, 16... Case wall, 27... Cylindrical body, 28... Guide member, 29... Biasing mechanism, 30... Spiral blade, 31
... Thrust receiving member, b... Recovered developer, c... Outflow port,
d...Communication port.
Claims (1)
還元するための現像剤の還元装置であつて、前記
現像部の現像スリーブを架設するケース壁にわた
つて、該ケース壁間のほぼ全域にわたる範囲の下
部側に現像剤の流下口を形成した筒体を架設する
と共に、現像剤移送用の螺旋翼と、前記流下口に
対応する連通口が形成されたガイド部材とを前記
筒体を内蔵し、かつ、前記ガイド部材をそれの連
通口を前記流下口に連通させる第１状態と前記流
下口を閉じる第２状態とに切換え自在に設けると
共に、該ガイド部材を前記第２状態に付勢維持す
る付勢機構を設け、更に、前記ガイド部材の移送
終端に推力受止め部材を設けて、前記螺旋翼の回
転に伴つて移送終端で現像剤が溜つたときの前記
推力受止め部材にかかる推力作用により、前記付
勢機構に抗して前記ガイド部材を前記第１状態に
切換えさせるべく構成してあることを特徴とする
現像部への現像剤の還元装置。 A developer reducing device for returning the developer collected from the surface of a photosensitive drum to a developing section, which includes a device for reducing a developer recovered from the surface of a photosensitive drum, and a device for reducing a developer collected from the surface of a photosensitive drum. A cylindrical body having a developer flow port formed on the lower side thereof is constructed, and a guide member having a spiral blade for transporting the developer and a communication port formed therein corresponding to the developer flow port is built into the cylinder body, and the guide member is provided so as to be switchable between a first state in which a communication port thereof communicates with the flow port and a second state in which the flow port is closed, and the guide member is biased and maintained in the second state. A biasing mechanism is provided, and a thrust receiving member is further provided at the transfer end of the guide member, so that the thrust acting on the thrust receiving member when developer accumulates at the transfer end as the spiral blade rotates. A device for returning developer to a developing section, characterized in that the device is configured to switch the guide member to the first state against the biasing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16585184U JPS6181671U (en) | 1984-10-31 | 1984-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16585184U JPS6181671U (en) | 1984-10-31 | 1984-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6181671U true JPS6181671U (en) | 1986-05-30 |
Family
ID=30723692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16585184U Pending JPS6181671U (en) | 1984-10-31 | 1984-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6181671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS638682A (en) * | 1986-06-30 | 1988-01-14 | Mita Ind Co Ltd | Image forming machine |
-
1984
- 1984-10-31 JP JP16585184U patent/JPS6181671U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS638682A (en) * | 1986-06-30 | 1988-01-14 | Mita Ind Co Ltd | Image forming machine |
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