JPS63138566U - - Google Patents
Info
- Publication number
- JPS63138566U JPS63138566U JP3250287U JP3250287U JPS63138566U JP S63138566 U JPS63138566 U JP S63138566U JP 3250287 U JP3250287 U JP 3250287U JP 3250287 U JP3250287 U JP 3250287U JP S63138566 U JPS63138566 U JP S63138566U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- developing device
- magnet
- developing
- utility
- 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
- 230000005684 electric field Effects 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図は本考案現像装置実施例の縦断面図、第
２図は従来実施例の縦断面図である。
１は像担持体、２は回転マグネツトロール、２
′は固定マグネツト、３は回転スリーブ、１１，
１２は搬送スクリユー、１０はカツトブレード、
７は現像剤、９は現像バイアス。
FIG. 1 is a longitudinal sectional view of an embodiment of the developing device of the present invention, and FIG. 2 is a longitudinal sectional view of a conventional embodiment. 1 is an image carrier, 2 is a rotating magnet roll, 2
' is a fixed magnet, 3 is a rotating sleeve, 11,
12 is a conveyance screw, 10 is a cut blade,
7 is a developer, and 9 is a developing bias.
Claims (1)
現像位置まで搬送し、現像位置で交互電界を形成
して現像を行う装置に於いて、該回転体が複数磁
極を密に配置したマグネツトである事を特徴とす
る現像装置。 (2) 複数磁極のピツチが回転マグネツトの外径
に於いて５mm以下である事を特徴とする実用新案
登録請求の範囲第１項記載の現像装置。 (3) 現像位置下流側に非磁性の現像剤はぎ取り
部材を有する事を特徴とする実用新案登録請求の
範囲第１項もしくは第２項に記載の現像装置。 (4) 現像位置下流側に、現像剤コート層より小
さいギヤツプで磁性体の現像剤はぎ取り部材を有
する事を特徴とする実用新案登録請求の範囲第１
項もしくは第２項記載の現像装置。 (5) 現像剤供給部と現像剤はぎ取り部の間に、
現像剤ポツパー部と、回転マグネツト部材を分離
する不切り部材を配置することを特徴とする実用
新案登録請求の範囲第１項もしくは第２項に記載
の現像装置。 (6) 複数の磁極を密に配置したマグネツトが導
電性部材で表面が被覆されている事を特徴とする
実用新案登録請求の範囲第１項もしくは第２項記
載の現像装置。[Claims for Utility Model Registration] (1) In an apparatus that holds a developer on a rotating body, conveys it to a latent image carrier to a developing position, and performs development by forming an alternating electric field at the developing position, A developing device characterized in that the rotating body is a magnet with multiple magnetic poles arranged closely. (2) The developing device according to claim 1, wherein the pitch of the plurality of magnetic poles is 5 mm or less in the outer diameter of the rotating magnet. (3) The developing device according to claim 1 or 2, which is characterized by having a non-magnetic developer stripping member downstream of the developing position. (4) Utility model registration claim 1, which is characterized by having a developer stripping member made of a magnetic material with a gap smaller than that of the developer coat layer on the downstream side of the development position.
The developing device according to item 1 or 2. (5) Between the developer supply section and the developer stripping section,
The developing device according to claim 1 or 2, characterized in that an uncut member is disposed to separate the developer popper portion from the rotating magnet member. (6) The developing device according to claim 1 or 2 of the utility model registration claim, characterized in that the surface of the magnet having a plurality of closely arranged magnetic poles is coated with a conductive member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250287U JPS63138566U (en) | 1987-03-04 | 1987-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250287U JPS63138566U (en) | 1987-03-04 | 1987-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63138566U true JPS63138566U (en) | 1988-09-12 |
Family
ID=30839237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3250287U Pending JPS63138566U (en) | 1987-03-04 | 1987-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63138566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04122965A (en) * | 1990-09-13 | 1992-04-23 | Hitachi Metals Ltd | Magnetic roll |
-
1987
- 1987-03-04 JP JP3250287U patent/JPS63138566U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04122965A (en) * | 1990-09-13 | 1992-04-23 | Hitachi Metals Ltd | Magnetic roll |
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