Inventor
SHIMURA HIDETSUGU
JP25 patents
Patents
25 patentsUS7260336B2Aug 21, 2007
Image forming apparatus and image forming method for performing density control of toner images
SEIKO EPSON CORP21 citations92
US7072597B2Jul 4, 2006
Image forming apparatus and image method for forming toner images with optimized patch image density
SEIKO EPSON CORP32 citations92
US6909858B2Jun 21, 2005
Image forming apparatus, toner-adhesion calculation method and data processing method
SEIKO EPSON CORP28 citations92
US6871026B2Mar 22, 2005
Apparatus for and method of forming image under controlled image forming condition
SEIKO EPSON CORP34 citations92
US6650849B2Nov 18, 2003
Method of and apparatus for controlling image density of toner image based on high and low-density correlation data
SEIKO EPSON CORP28 citations92
US6334034B1Dec 25, 2001
Detachable cleaning device for an image forming apparatus
SEIKO EPSON CORP17 citations92
US7680425B2Mar 16, 2010
Image forming apparatus and method for controlling tone characteristics based on tone-control patch image
SEIKO EPSON CORP14 citations84
US7269362B2Sep 11, 2007
Image forming apparatus, control method and toner consumption calculating apparatus and method
SEIKO EPSON CORP13 citations84
US7068957B2Jun 27, 2006
Image forming apparatus and image forming method involving application of a developing bias to a toner carrier
SEIKO EPSON CORP15 citations84
US6889015B2May 3, 2005
Apparatus and method of forming patch image for optimizing density control factor
SEIKO EPSON CORP17 citations84
US7251423B2Jul 31, 2007
Image forming apparatus and image forming method
SEIKO EPSON CORP9 citations74
US6539186B2Mar 25, 2003
Image forming apparatus having a cleaning device
SEIKO EPSON CORP5 citations74
US5002845AMar 26, 1991
Electrophotographic image forming member and method and apparatus for transferring electrophotographic images formed on the member
SEIKO EPSON CORP13 citations74
US5822169AOct 13, 1998
Contact charging device
SEIKO EPSON CORP15 citations73
US5090828AFeb 25, 1992
Apparatus for replenishing a depleted ink sheet
SEIKO EPSON CORP12 citations73
US4948692AAug 14, 1990
Combination toner and printer utilizing same
SEIKO EPSON CORP18 citations72
US5359395AOct 25, 1994
Contact charge supply device
SEIKO EPSON CORP16 citations71
US5112710AMay 12, 1992
Electrophotographic image forming method
SEIKO EPSON CORP3 citations63
US5453819ASep 26, 1995
Charger apparatus
SEIKO EPSON CORP6 citations62
US5131768AJul 21, 1992
Replenishing an ink transfer sheet
SEIKO EPSON CORP2 citations62
US4942056AJul 17, 1990
Method for replenishing a depleted ink sheet
SEIKO EPSON CORP4 citations62
US7509064B2Mar 24, 2009
Image forming apparatus, a toner counter and a calculation method of toner consumption
SEIKO EPSON CORP2 citations61
US7289743B2Oct 30, 2007
Image forming apparatus, a toner counter and a calculation method of toner consumption
SEIKO EPSON CORP4 citations61
US7489882B2Feb 10, 2009
Image forming apparatus, a toner counter and a calculation method of toner consumption
SEIKO EPSON CORP0 citations51
US7623801B2Nov 24, 2009
Image forming apparatus and control method thereof
SEIKO EPSON CORP0 citations40