Inventor
CHIBA MASAKO
JP4 patents
Patents
4 patentsUS5786091AJul 28, 1998
Charge roller for an image forming apparatus
RICOH KK32 citations91
US5479243ADec 26, 1995
Image forming apparatus and charging device thereof
RICOH KK24 citations91
US5689770ANov 18, 1997
Image forming apparatus which maintains a temperature of a charge roller
RICOH KK7 citations72
US5881344AMar 9, 1999
Image forming apparatus and charging device thereof
RICOH KK3 citations61