JPS6435470A - Electrostatic latent image developing device - Google Patents

Electrostatic latent image developing device

Info

Publication number
JPS6435470A
JPS6435470A JP19094887A JP19094887A JPS6435470A JP S6435470 A JPS6435470 A JP S6435470A JP 19094887 A JP19094887 A JP 19094887A JP 19094887 A JP19094887 A JP 19094887A JP S6435470 A JPS6435470 A JP S6435470A
Authority
JP
Japan
Prior art keywords
magnetic
nap
height control
developer
magnetic pole
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
Application number
JP19094887A
Other languages
Japanese (ja)
Inventor
Masahide Ueda
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.)
Minolta Co Ltd
Original Assignee
Minolta Co 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP19094887A priority Critical patent/JPS6435470A/en
Publication of JPS6435470A publication Critical patent/JPS6435470A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To make the conveyance amount of a developer per unit time constant by installing a nap height control member at a prescribed position between the magnetic poles of a magnetic roller and making the magnetic force of the upstream magnetic pole on the upstream side in a developer conveying direction larger than the magnetic force of the downstream magnetic pole. CONSTITUTION:The nap height control plate 3 is positioned which has its tip opposite to the side of the magnetic pole N4 by an angle alpha from a transition point A between the two adjacent magnetic poles S2 and N4 of the magnetic roller 2, and the magnetic force of the magnetic pole S2 is set smaller than that of the magnetic pole N4. In this constitution, a developer held is a brush shape on a developing sleeve 1 is in a high-concentration state wherein the nap is short, the nap height control plate 3 cuts the nap, and the developer passes through a nap height control gap Db while receiving the larger magnetic force than that on the upstream side from the downstream side of the nap height control plate 3, thereby holding the conveyance amount of the developer per unit time constant even if the angle alpha of the nap height control plate 3 to the transition point A has slight variance.
JP19094887A 1987-07-30 1987-07-30 Electrostatic latent image developing device Pending JPS6435470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19094887A JPS6435470A (en) 1987-07-30 1987-07-30 Electrostatic latent image developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19094887A JPS6435470A (en) 1987-07-30 1987-07-30 Electrostatic latent image developing device

Publications (1)

Publication Number Publication Date
JPS6435470A true JPS6435470A (en) 1989-02-06

Family

ID=16266339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19094887A Pending JPS6435470A (en) 1987-07-30 1987-07-30 Electrostatic latent image developing device

Country Status (1)

Country Link
JP (1) JPS6435470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH034262A (en) * 1989-05-31 1991-01-10 Canon Inc Developing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH034262A (en) * 1989-05-31 1991-01-10 Canon Inc Developing device

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