Inventor
KAWAISHI YASUNORI
JP17 patents
Patents
17 patentsUS6212351B1Apr 3, 2001
Image transferring method and image forming apparatus for transferring toner image from image carrier to recording medium either via or carried on intermediate image transfer belt
RICOH KK58 citations96
US5701566ADec 23, 1997
Image transferring device for an image forming apparatus
RICOH KK43 citations96
USRE38206EJul 29, 2003
Image transferring device for an image forming apparatus
RICOH KK18 citations92
US6057869AMay 2, 2000
Image forming apparatus for fixing a toner image at a first speed or at a second speed
RICOH KK22 citations92
US5666622ASep 9, 1997
Image transferring device and medium separating device for an image forming apparatus
RICOH KK35 citations92
US5461461AOct 24, 1995
Image transferring device and medium separating device for an image forming apparatus
RICOH KK40 citations92
US5442428AAug 15, 1995
Image recording apparatus
RICOH KK43 citations92
US5291252AMar 1, 1994
Multicolor image forming apparatus with tension controlled image transfer belt
RICOH KK21 citations92
US5159392AOct 27, 1992
Image forming apparatus for forming an image on one or both sides of a recording medium
RICOH KK34 citations92
US4571056AFeb 18, 1986
Fixing device
RICOH KK40 citations92
US5160969ANov 3, 1992
Image forming apparatus having a separate black developer stored for a color image
RICOH KK52 citations91
US6125257ASep 26, 2000
Methods and systems for cleaning residual toner from image developing device
RICOH KK35 citations90
US5648842AJul 15, 1997
Methods and systems for cleaning residual toner from image-developing device
RICOH KK20 citations90
US5162859ANov 10, 1992
Image forming apparatus capable of creating duplex mixed full color and black/white copies and delivering copy sets on page-sequential order
RICOH KK21 citations81
US5278613AJan 11, 1994
Image forming apparatus with transfer medium and electrometer positioned opposite the transfer region
RICOH KK10 citations73
US5142339AAug 25, 1992
Image recorder with variable fuser nip entry position
RICOH KK12 citations73
US4348106ASep 7, 1982
Guide apparatus for movable contact glass in electrophotographic copying machines
RICOH KK9 citations73