JPH032363U - - Google Patents
Info
- Publication number
- JPH032363U JPH032363U JP6097489U JP6097489U JPH032363U JP H032363 U JPH032363 U JP H032363U JP 6097489 U JP6097489 U JP 6097489U JP 6097489 U JP6097489 U JP 6097489U JP H032363 U JPH032363 U JP H032363U
- Authority
- JP
- Japan
- Prior art keywords
- developing device
- magnetic
- photosensitive drum
- magnet roll
- developer
- 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
- 239000000696 magnetic material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本案の一実施例の現像装置及び現像手
段を用いた現像系の断面図、第２図はマグネツト
ロールの磁極の磁力線の磁性体に集まる状態の説
明図、第３図は第２図の作用で現像剤のキヤリア
がシール効果を生ずる説明図、第４図は第２図と
同様に磁極の磁力線の磁性体に集まる状態の説明
図、第５図は第４図の作用で現像剤が感光ドラム
に接触する状態の説明図、第６図は電子写真装置
の印字プロセスの説明図である。
１……感光ドラム、９……磁性体部材、１０…
…現像剤搬送体、１１……マグネツトロール、１
４……底板、１４ａ……底板端部、１５……磁性
体部材、２８……現像剤、２８ａ……キヤリア。
Fig. 1 is a sectional view of a developing system using a developing device and developing means according to an embodiment of the present invention, Fig. 2 is an explanatory view of the state in which the magnetic lines of force of the magnetic pole of the magnet roll converge on a magnetic material, and Fig. 3 is a Figure 2 is an explanatory diagram of how developer carriers produce a sealing effect due to the action shown in Figure 4. Similar to Figure 2, Figure 4 is an explanatory diagram of the state in which the lines of magnetic force of the magnetic pole gather on a magnetic body. FIG. 6 is an explanatory diagram of the state in which the developer contacts the photosensitive drum, and FIG. 6 is an explanatory diagram of the printing process of the electrophotographic apparatus. 1... Photosensitive drum, 9... Magnetic member, 10...
...Developer transport body, 11... Magnet roll, 1
4... Bottom plate, 14a... Bottom plate end, 15... Magnetic member, 28... Developer, 28a... Carrier.
Claims (1)
る現像剤を用いて、感光ドラム上に形成された静
電潜像を現像するために、現像剤を磁気的に担持
する搬送体と該搬送体の内側に多極の永久磁石を
有するマグネツトロールを配置した構成の現像装
置において、トナー飛散防止のため、現像装置の
感光ドラム側の底板端部に鋼板などの磁性体をマ
グネツトロールの磁極に対向させて配置したこと
を特徴とする現像装置。 ２ 現像濃度増大のため、マグネツトロールの主
磁極に対向させて、感光ドラムの内側に鋼板など
の磁性体を配置したことを特徴とする現像装置。[Claims for Utility Model Registration] 1. To develop an electrostatic latent image formed on a photosensitive drum using a developer consisting of a non-magnetic toner and a magnetic carrier, the developer is magnetically used. In a developing device having a structure in which a conveying body is disposed and a magnet roll having a multipolar permanent magnet inside the conveying body, a steel plate or the like is installed at the end of the bottom plate on the photosensitive drum side of the developing device to prevent toner from scattering. A developing device characterized in that a magnetic material is arranged to face the magnetic pole of a magnet roll. 2. A developing device characterized in that a magnetic material such as a steel plate is disposed inside a photosensitive drum, facing the main magnetic pole of a magnet roll, in order to increase the developing density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6097489U JPH032363U (en) | 1989-05-29 | 1989-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6097489U JPH032363U (en) | 1989-05-29 | 1989-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH032363U true JPH032363U (en) | 1991-01-10 |
Family
ID=31588814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6097489U Pending JPH032363U (en) | 1989-05-29 | 1989-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032363U (en) |
-
1989
- 1989-05-29 JP JP6097489U patent/JPH032363U/ja active Pending
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