Developing Device

The invention provides a developing device. The developing device includes a developing container, a developing sleeve, a magnet and grooves provided at a surface of the sleeve and formed along a direction crossing a circumferential direction of the sleeve. In a cross-section, each of the grooves is...

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Bibliographic Details
Main Authors YASUSHI TAKEUCHI, YUSUKE ISHIDA, TOSHIYA KOBAYASHI, TOSHIYUKI YAMADA, HIROTO KAKINUMA, TAKANORI IIDA, SHIRO HIGASHIKOZONO
Format Patent
LanguageChinese
English
Published 08.03.2017
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:The invention provides a developing device. The developing device includes a developing container, a developing sleeve, a magnet and grooves provided at a surface of the sleeve and formed along a direction crossing a circumferential direction of the sleeve. In a cross-section, each of the grooves is formed by a flat bottom portion contacting a carrier particle and a pair of side surface portions provided in both sides of the flat bottom portion with respect to the circumferential direction of the sleeve and satisfies the following relationship: r < w < 2 r , 2 x r < L , and r / 2 <= s < 2 r . In the above, r is a volume-average particle size of the carrier particles, w is a length of the flat bottom portion, L is a width between the side surface portions at the surface of the sleeve, and s is a depth of each of the grooves. 本发明提供种显影设备。显影设备包括显影容器、显影套筒、磁体和凹槽，所述凹槽被配设在套筒的表面并且沿着与套筒的圆周方向交叉的方向形成。在横截面中，各个凹槽由接触载体颗粒的平坦底部、和在平坦底部的沿套筒的圆周方向的两侧配设的对侧表面部形成，并且满足如下关系：r<w<2r，2×r<L，且r/2≤s<2r。在上述中，r是载体颗粒的体积平均粒径，w是平坦底部的长度，L是在套筒的表面处
Bibliography:Application Number: CN201610793555