Inventor
ARAYA JUNJI
JP26 patents
Patents
26 patentsUS4851960AJul 25, 1989
Charging device
CANON KK184 citations99
US5450180ASep 12, 1995
Image forming apparatus having constant current and voltage control in the charging and transfer regions
CANON KK68 citations96
US5179397AJan 12, 1993
Image forming apparatus with constant voltage and constant current control
CANON KK65 citations96
US5164779ANov 17, 1992
Image forming apparatus with dual voltage supplies for selectively charging and discharging an image bearing member
CANON KK51 citations96
US5126913AJun 30, 1992
Charging device with contactable charging means and an image forming apparatus having the charging means and a detachable process unit
CANON KK69 citations96
US5010370AApr 23, 1991
Transfer apparatus and image bearing apparatus using same having transfer means for contacting a backside of a transfer material
CANON KK30 citations93
US5809379ASep 15, 1998
Electrophotography having photosensitive member with charge blocking overlayer
CANON KK32 citations92
US5485248AJan 16, 1996
Image forming apparatus having a contact charger for varying a charge applied to a photosensitive drum based on a resistance of the photosensitive layer
CANON KK45 citations92
US5420671AMay 30, 1995
Charger and image forming apparatus with same
CANON KK42 citations92
US5420679AMay 30, 1995
Elastic roller and fixing apparatus using same
CANON KK46 citations92
US5390007AFeb 14, 1995
Charging member, charging device, process cartridge and image forming apparatus
CANON KK23 citations92
US5253024AOct 12, 1993
Fixing apparatus with rectifier element
CANON KK41 citations92
US5159393AOct 27, 1992
Image forming apparatus having transfer device and image bearing member traveling at different speeds
CANON KK37 citations92
US5151736ASep 29, 1992
Image forming apparatus with controlled transfer voltage
CANON KK25 citations92
US5144368ASep 1, 1992
Charging device and image forming apparatus having same
CANON KK39 citations92
US5132738AJul 21, 1992
Image forming apparatus with cleaning mechanism for charging electrode
CANON KK45 citations92
US5034777AJul 23, 1991
Transferring device having charging device with double oxide and voltage control
CANON KK40 citations92
US5006902AApr 9, 1991
Image forming apparatus having a predetermined voltage applied to the transfer member
CANON KK32 citations92
USRE35581EAug 12, 1997
Charging device
CANON KK18 citations84
US5585894ADec 17, 1996
Process cartridge with a movable image bearing member as well as a contactable member, and an image forming apparatus having the same
CANON KK17 citations82
US5499080AMar 12, 1996
Image forming apparatus having a voltage controlled contact charger
CANON KK17 citations73
US5384626AJan 24, 1995
Charging member, process cartridge and image forming apparatus
CANON KK16 citations73
US4619520AOct 28, 1986
Variable magnification electrophotographic copying apparatus
CANON KK6 citations63
US5587773ADec 24, 1996
Electrophotographic apparatus for performing image exposure and development simultaneously
CANON KK2 citations61
US5963762AOct 5, 1999
Electrophotographic apparatus performing image exposure and development simultaneously
CANON KK4 citations60
US5567556AOct 22, 1996
Electrophotographic process and apparatus simultaneously effecting image exposure and developing steps to opposites sides of photosensitive member
CANON KK0 citations42