Inventor
OKANO KEIJI
JP27 patents
Patents
27 patentsUS6343193B1Jan 29, 2002
Process cartridge and image forming apparatus including a developer remaining amount detecting member
CANON KK58 citations96
US5649264AJul 15, 1997
Developing unit having optical detection of a residual quantity of developer in a developer container
CANON KK65 citations96
US5084733AJan 28, 1992
Developing apparatus having developer layer regulation means
CANON KK55 citations96
US6272306B1Aug 7, 2001
Developing apparatus and image forming apparatus having first and second voltages applied to a developing satisfying predetermined relationships
CANON KK22 citations92
US6167212ADec 26, 2000
Development density adjusting method for image forming apparatus
CANON KK22 citations92
US6058284AMay 2, 2000
Developing apparatus
CANON KK20 citations92
US5682574AOct 28, 1997
Developing apparatus having reciprocating cleaning device for photodetector
CANON KK42 citations92
US5618647AApr 8, 1997
Magnetic toner and image forming method
CANON KK38 citations92
US5589918ADec 31, 1996
Process cartridge, assembling method therefor and electrophotographic apparatus
CANON KK51 citations92
US5185496AFeb 9, 1993
Electrostatic latent image device having a coating layer provided on a developer carrying member
CANON KK29 citations92
US5177537AJan 5, 1993
Developing apparatus with elastic regulating member urged to a developer carrying member
CANON KK42 citations92
US4989044AJan 29, 1991
Developing apparatus for developing electrostatic latent images
CANON KK52 citations92
US6532030B2Mar 11, 2003
Process cartridge, image forming apparatus, and image forming method
CANON KK22 citations91
US7035560B2Apr 25, 2006
Image forming apparatus having charging member supplied with a plurality of alternating voltages and memory for storing information for selecting the voltages
CANON KK15 citations84
US6898401B2May 24, 2005
Charging system, process cartridge and image forming apparatus
CANON KK13 citations84
US6882806B2Apr 19, 2005
Charging apparatus determining a peak-to-peak voltage to be applied to a charging member
CANON KK19 citations84
US6226464B1May 1, 2001
Developer apparatus featuring a developer container partition portion disposed between a detecting member and an agitating member
CANON KK15 citations84
US6829447B2Dec 7, 2004
Developing apparatus
CANON KK10 citations74
US6370348B1Apr 9, 2002
Developing apparatus including intermittent developer agitating feature, and image forming apparatus using same
CANON KK8 citations74
US5781835AJul 14, 1998
Developing device comprising a magnetic member
CANON KK12 citations74
US5666606ASep 9, 1997
Image forming apparatus comprising contact type charging member
CANON KK16 citations73
US6686942B2Feb 3, 2004
Memory device for an image forming apparatus storing characteristics information about a process cartridge detachably attachable to the apparatus
CANON KK5 citations72
US5027745AJul 2, 1991
Developing apparatus having developer carrying roller with carbon fibers in surface layer
CANON KK8 citations71
US7289756B2Oct 30, 2007
Developer regulating member with surface roughness parameters
CANON KK4 citations63
US6741824B2May 25, 2004
Charging system, process cartridge and image forming apparatus
CANON KK2 citations63
US7194215B2Mar 20, 2007
Process cartridge comprising memory medium storing information for selecting one of a plurality of alternating voltages applied to charging member and such a memory medium
CANON KK2 citations62
US6559875B2May 6, 2003
Image forming apparatus with pixel density based light beam control
CANON KK4 citations62