JPS57158670A - Developing device - Google Patents

Developing device

Info

Publication number
JPS57158670A
JPS57158670A JP4316981A JP4316981A JPS57158670A JP S57158670 A JPS57158670 A JP S57158670A JP 4316981 A JP4316981 A JP 4316981A JP 4316981 A JP4316981 A JP 4316981A JP S57158670 A JPS57158670 A JP S57158670A
Authority
JP
Japan
Prior art keywords
developer
opposite
roll
magnet
constitution
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
Application number
JP4316981A
Other languages
Japanese (ja)
Other versions
JPH0139107B2 (en
Inventor
Keitaro Yamashita
Hiromi Kashiwagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP4316981A priority Critical patent/JPS57158670A/en
Priority to GB8207115A priority patent/GB2097294B/en
Priority to US06/357,295 priority patent/US4436055A/en
Priority to DE3210093A priority patent/DE3210093C2/en
Priority to DE3249322A priority patent/DE3249322C2/en
Publication of JPS57158670A publication Critical patent/JPS57158670A/en
Publication of JPH0139107B2 publication Critical patent/JPH0139107B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To perform the assured transfer of the developer, by setting the permanent magnets in the adjacent magnet rolls opposite to ech other and in the opposite polarity to each other and at the same time setting the magnetic poles in the direction opposite to the rotating direction of a sleeve with a slight shift between them. CONSTITUTION:A transfer magnetic pole S11 of a permanent magnet 12' of the 1st magnet roll 1' is set in the direction opposite to the rotating direction of a sleeve 11 with a slight shift to the position of a magnetic pole N22 having the opposite polarity of a permanent magnet 22' of the 2nd magnet roll 2' that is set close and opposite to the roll 1'. Thus an oblique magnetic connection is caused between the poles S11 and N22. In such constitution, a developer 3' has no pause between the rolles 1' and 2' to produce an eddy rotation. As a result, the developer 3' has two different types of flows. One of these flows passes short through the upper side, and the other flow is once drawn into the eddy and then transferred to the roll 2' to be put together with the other flow. Thus the developer is mixed evenly to be transferred in an assured way with no variance of transport.
JP4316981A 1981-03-20 1981-03-26 Developing device Granted JPS57158670A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP4316981A JPS57158670A (en) 1981-03-26 1981-03-26 Developing device
GB8207115A GB2097294B (en) 1981-03-20 1982-03-11 Developing apparatus
US06/357,295 US4436055A (en) 1981-03-20 1982-03-11 Developing apparatus
DE3210093A DE3210093C2 (en) 1981-03-20 1982-03-19 Development facility
DE3249322A DE3249322C2 (en) 1981-03-20 1982-03-19 Magnetic developer scraper in a magnetic brush developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4316981A JPS57158670A (en) 1981-03-26 1981-03-26 Developing device

Publications (2)

Publication Number Publication Date
JPS57158670A true JPS57158670A (en) 1982-09-30
JPH0139107B2 JPH0139107B2 (en) 1989-08-18

Family

ID=12656372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4316981A Granted JPS57158670A (en) 1981-03-20 1981-03-26 Developing device

Country Status (1)

Country Link
JP (1) JPS57158670A (en)

Also Published As

Publication number Publication date
JPH0139107B2 (en) 1989-08-18

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