JPS59131761U - magnetic brush developing device - Google Patents
magnetic brush developing deviceInfo
- Publication number
- JPS59131761U JPS59131761U JP2370283U JP2370283U JPS59131761U JP S59131761 U JPS59131761 U JP S59131761U JP 2370283 U JP2370283 U JP 2370283U JP 2370283 U JP2370283 U JP 2370283U JP S59131761 U JPS59131761 U JP S59131761U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic brush
- developing device
- magnetic
- brush developing
- developing
- 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
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の複写装置の概要を示す図であり、第２図
は現像ユニットの詳細図であり、第３図は湿度とトナー
の電気抵抗の関係を示す図表であ−リ、第４図は湿度と
ｌ１５００との関係を示す図表であり、第５図は本考案
の装置を説明するための図であり、第６図は従来の装置
また第７図は本考案の装置による画像濃度と湿度との関
係を示す図表であり、第８図はトヅ一層に対する印加電
圧とそのときの電流との関係を示す図表である。
図中符号＝１・・・・・・感光ドラム、２・・・・・・
帯電用コロトロン、３・・・・・・露光装置、４・・・
・・・現像装置、５・・・・・・転写用コロトロン、６
・・・・・・クリーニング装置、７・・・・・・定着器
、８・・・・・・記録紙、９・・・・・・トリマー電極
、１０・・・・・・スリーブ、１１・・・・・・トナ一
層、１２・・・・・・ホッパー、１３・・・・・・トナ
一層電圧、１４・・・・・・現像バイアス電圧。FIG. 1 is a diagram showing an outline of a conventional copying apparatus, FIG. 2 is a detailed diagram of a developing unit, FIG. 3 is a chart showing the relationship between humidity and electrical resistance of toner, and FIG. The figure is a chart showing the relationship between humidity and l1500, Figure 5 is a diagram for explaining the apparatus of the present invention, Figure 6 is a diagram of the conventional apparatus, and Figure 7 is an image density diagram of the apparatus of the present invention. FIG. 8 is a chart showing the relationship between the voltage and the humidity, and FIG. Code in the figure = 1...Photosensitive drum, 2...
Charging corotron, 3... Exposure device, 4...
...Developing device, 5...Corotron for transfer, 6
... Cleaning device, 7 ... Fixing device, 8 ... Recording paper, 9 ... Trimmer electrode, 10 ... Sleeve, 11. ... Toner first layer, 12 ... Hopper, 13 ... Toner first layer voltage, 14 ... Development bias voltage.
Claims (1)
た現像ロール上に磁性トナーの磁気ブラシを形成し、こ
の磁気ブラシのトリマー電極に現像バイアス電圧を印加
する磁気ブラシ現像装置において、トリマー電極からス
リーブに注入される電流が一定になるように現像バイア
ス電圧を制御するようにしたことを特徴とする磁気ブラ
シ現像装置。In a magnetic brush developing device, a magnetic brush of magnetic toner is formed on a developing roll with a built-in magnet roll inside a non-magnetic hollow cylindrical sleeve, and a developing bias voltage is applied to the trimmer electrode of this magnetic brush. A magnetic brush developing device characterized in that a developing bias voltage is controlled so that the current applied is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2370283U JPS59131761U (en) | 1983-02-22 | 1983-02-22 | magnetic brush developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2370283U JPS59131761U (en) | 1983-02-22 | 1983-02-22 | magnetic brush developing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59131761U true JPS59131761U (en) | 1984-09-04 |
Family
ID=30154773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2370283U Pending JPS59131761U (en) | 1983-02-22 | 1983-02-22 | magnetic brush developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59131761U (en) |
-
1983
- 1983-02-22 JP JP2370283U patent/JPS59131761U/en active Pending
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