JPH01101261U - - Google Patents
Info
- Publication number
- JPH01101261U JPH01101261U JP19903387U JP19903387U JPH01101261U JP H01101261 U JPH01101261 U JP H01101261U JP 19903387 U JP19903387 U JP 19903387U JP 19903387 U JP19903387 U JP 19903387U JP H01101261 U JPH01101261 U JP H01101261U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- roller
- developing
- magnet
- magnetic
- 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
- 108091008695 photoreceptors Proteins 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図乃至第３図は本考案の一実施例を示すも
のであつて、第１図はマグネツトローラ、駆動手
段および制御手段の構成関係を示すブロツク説明
図、第２図および第３図はそれぞれ現像槽の構造
を示す断面正面図である。
１１は感光体、１２は現像槽、１４はミキシン
グローラ、２１は現像用マグネツトローラ、２７
は搬送用マグネツトローラ、２２・２８はマグネ
ツト、３３はソレノイド、３５は制御手段である
。
1 to 3 show one embodiment of the present invention, in which FIG. 1 is a block explanatory diagram showing the structural relationship of the magnet roller, driving means, and control means, and FIGS. 2 and 3 2A and 2B are cross-sectional front views showing the structure of the developer tank, respectively. 11 is a photoreceptor, 12 is a developing tank, 14 is a mixing roller, 21 is a developing magnet roller, 27
22 and 28 are magnets, 33 is a solenoid, and 35 is a control means.
Claims (1)
グネツトローラと、現像剤のミキシングローラと
を備え、感光体に形成された帯電潜像を現像する
現像槽を備えた電子写真装置の現像装置において
、 現像槽に上記搬送用マグネツトローラを構成す
るマグネツトを回動させる駆動手段が設けられる
とともに、 上記駆動手段を備えた現像槽が現像状態にある
ときには、現像剤搬送用マグネツトローラの磁極
が現像剤ミキシングローラおよび現像用マグネツ
トローラに接近して位置するように駆動手段を作
動させる一方、現像槽が現像を終了し現像剤搬送
用マグネツトローラが現像用マグネツトローラ上
の現像剤を回収した後は現像剤搬送用マグネツト
ローラのマグネツトの磁極が現像剤ミキシングロ
ーラから遠ざかる位置に位置するように駆動手段
を作動させる制御手段が設けられていることを特
徴とする電子写真装置の現像装置。[Scope of Claim for Utility Model Registration] Comprising a developing magnet roller, a developer conveying magnet roller, a developer mixing roller, and a developing tank for developing a charged latent image formed on a photoreceptor. In the developing device of an electrophotographic apparatus, the developer tank is provided with a driving means for rotating a magnet constituting the conveying magnet roller, and when the developer tank equipped with the driving means is in a developing state, the developer is The driving means is operated so that the magnetic pole of the conveying magnetic roller is positioned close to the developer mixing roller and the developing magnetic roller, while the developer tank finishes developing and the developer conveying magnetic roller is positioned close to the developing agent mixing roller and the developing magnetic roller. After collecting the developer on the magnetic roller, a control means is provided for operating the drive means so that the magnetic pole of the magnet of the developer conveying magnetic roller is located at a position away from the developer mixing roller. Features of a developing device for an electrophotographic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987199033U JPH085479Y2 (en) | 1987-12-26 | 1987-12-26 | Developing device for electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987199033U JPH085479Y2 (en) | 1987-12-26 | 1987-12-26 | Developing device for electrophotographic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01101261U true JPH01101261U (en) | 1989-07-07 |
| JPH085479Y2 JPH085479Y2 (en) | 1996-02-14 |
Family
ID=31489507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987199033U Expired - Lifetime JPH085479Y2 (en) | 1987-12-26 | 1987-12-26 | Developing device for electrophotographic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085479Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5348534A (en) * | 1976-10-14 | 1978-05-02 | Fujitsu Ltd | Developing device of electrostatic recorder |
| JPS54109846A (en) * | 1978-02-17 | 1979-08-28 | Ricoh Co Ltd | Magnetic brush developing device |
-
1987
- 1987-12-26 JP JP1987199033U patent/JPH085479Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5348534A (en) * | 1976-10-14 | 1978-05-02 | Fujitsu Ltd | Developing device of electrostatic recorder |
| JPS54109846A (en) * | 1978-02-17 | 1979-08-28 | Ricoh Co Ltd | Magnetic brush developing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH085479Y2 (en) | 1996-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01101261U (en) | ||
| JPS55113073A (en) | Magnetic brush developing device | |
| JPS62106257U (en) | ||
| JPS6017470A (en) | Developing device | |
| JPS62106265U (en) | ||
| JPS6276357U (en) | ||
| JPS61153057U (en) | ||
| JPS58123449U (en) | developing device | |
| JPS60154964U (en) | Multicolor copying machine developing device | |
| JPS61167670U (en) | ||
| JPS6311660U (en) | ||
| JPS6188160U (en) | ||
| JPH01128268U (en) | ||
| JPS61124054U (en) | ||
| JPS58178155U (en) | Developing device of electrophotographic copying machine | |
| JPH0424763U (en) | ||
| JPS58100366U (en) | developing device | |
| JPH0281548U (en) | ||
| JPH0420062U (en) | ||
| JPS6343153U (en) | ||
| JPS6380570U (en) | ||
| JPS63115157U (en) | ||
| JPS62193264U (en) | ||
| JPS63101951U (en) | ||
| JPH0221659U (en) |