JPS6435470A - Electrostatic latent image developing device - Google Patents
Electrostatic latent image developing deviceInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH034262A (en) * | 1989-05-31 | 1991-01-10 | Canon Inc | Developing device |
-
1987
- 1987-07-30 JP JP19094887A patent/JPS6435470A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH034262A (en) * | 1989-05-31 | 1991-01-10 | Canon Inc | Developing device |
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