ELECTROPHOTOGRAPHIC CARRIER PRODUCING DEVICE

申请公布号：

JPH09190017(A)

申请号：

JP19960018128

申请日期：

1996.01.08

申请公布日期：

1997.07.22

申请人：

RICOH CO LTD

发明人：

OTAKI KAZUMI;SUZUKI YASUO;MATSUI KAZUYUKI

分类号：

G03G9/113;(IPC1-7):G03G9/113

主分类号：

G03G9/113

摘要：

<p>PROBLEM TO BE SOLVED: To provide an electrophotographic carrier producing device by which good-quality coating is easily formed on the surface of a carrier core material. SOLUTION: In this carrier producing device by which the surface of the carrier core material is coated with resin by a rolling fluid bed 2 in a granulating cylinder 1; a rotary disk plate 5 for supplying heated air rising along the inner wall of the cylinder 1 from the lower part of the fluid bed 2 is disposed, and a secondary air inflow pipe 12 preventing the fluid bed 2 from flying up, crushing flocculated particles, forming revolving flow at the upper part of the fluid bed 2 and supplying air whose temperature is higher than the heated air introduced through the disk plate 5 is disposed. Furthermore, a classifying blade rotated by mechanical force or pneumatic force to an exhaust pipe 9 and dispersing resin mist and coating carrier is disposed at the upper part of the central part in the cylinder 1.</p>