Title:
DEVELOPING ROLL FOR ELECTROPHOTOGRAPHIC DEVICE AND METHOD FOR MANUFACTURING DEVELOPING ROLL FOR ELECTROPHOTOGRAPHIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/195449
Kind Code:
A1
Abstract:
Provided are a developing roll for an electrophotographic device and a method for manufacturing a developing roll for an electrophotographic device, with which fusing of toner and filming of the toner can be suppressed. A developing roller 10 for an electrophotographic device is equipped with a shaft 12 and an elastic body layer 14 formed on the outer circumference of the shaft 12, wherein the surface of the elastic body layer 14 has a plurality of large protruding parts 16 having a width of 3.0 – 12 μm and a height of 3.0 – 12 μm, and a side surface of the large protruding parts 16 has a plurality of small protruding parts 18 which form recesses and protrusions having a ten-point average roughness Rz of 2.0 – 4.0 μm.
More Like This:
| WO/1995/017298 | METHOD OF MANUFACTURING HARD ROLL |
Inventors:
KIBAYASHI TATSUYA (JP)
SAITO YOSHIHIRO (JP)
SAITO YOSHIHIRO (JP)
Application Number:
PCT/JP2020/007322
Publication Date:
October 01, 2020
Filing Date:
February 25, 2020
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
F16C13/00; G03G15/08
Foreign References:
| JP2009075497A | 2009-04-09 | |||
| JP2008116500A | 2008-05-22 | |||
| JPH07114265A | 1995-05-02 | |||
| JP2013073130A | 2013-04-22 | |||
| JP2017058615A | 2017-03-23 | |||
| JP2012241735A | 2012-12-10 | |||
| JPH08286502A | 1996-11-01 |
Attorney, Agent or Firm:
WENO & PARTNERS (JP)
Download PDF: