Electrostatic image developing process with optimized setpoints

Details Electrostatic image developing process with optimized setpoints Electrostatic image developing process with optimized setpoints

2001-05-15

2003-02-25

Ngo, Hoang (Department: 2852)

Electrophotography

Image formation

Development

C399S276000, C399S275000

Reexamination Certificate

active

06526247

ABSTRACT:

BACKGROUND
The invention relates generally to processes for electrostatic image development, and setpoints that provide uniform image development.
Processes for developing electrostatic images using dry toner are well known in the art. A process that implements hard magnetic carriers and a rotating magnetic core is described in U.S. Pat. Nos. 4,546,060 and 4,473,029. The rotating magnetic core promotes agitated flow of the toner/carrier mixture, which improves development relative to certain other development processes. In spite of such improvements, certain image artifacts still occur, some of which are the result of process setpoints. Therefore, a more robust process without image artifacts is generally desired.
SUMMARY
A process for developing electrostatic images comprising depositing a uniform toner density on an electrostatic image using a magnetic brush comprising hard magnetic carriers, a rotating shell, and a rotating plurality of magnets inside the rotating shell, without plating-out the rotating shell with toner.


REFERENCES:
patent: 4473029 (1984-09-01), Fritz et al.
patent: 4496643 (1985-01-01), Wilson et al.
patent: 4531832 (1985-07-01), Kroll et al.
patent: 4546060 (1985-10-01), Miskinis et al.
patent: 4602863 (1986-07-01), Fritz et al.
patent: 4634286 (1987-01-01), Pike
patent: 4637973 (1987-01-01), Shigeta et al.
patent: 4671207 (1987-06-01), Hilbert
patent: 4714046 (1987-12-01), Steele et al.
patent: 4764445 (1988-08-01), Miskinis et al.
patent: 4825244 (1989-04-01), Hediger
patent: 4887132 (1989-12-01), Joseph et al.
patent: 4922302 (1990-05-01), Hill et al.
patent: 4949127 (1990-08-01), Matsuda et al.
patent: 4967236 (1990-10-01), Rodenberg et al.
patent: 5001028 (1991-03-01), Mosehauer et al.
patent: 5019796 (1991-05-01), Lee et al.
patent: 5040003 (1991-08-01), Willis
patent: 5043760 (1991-08-01), MacLellan et al.
patent: 5047807 (1991-09-01), Kalyandurg
patent: 5049471 (1991-09-01), Higashiguchi et al.
patent: 5061586 (1991-10-01), Saha et al.
patent: 5063399 (1991-11-01), Zeman et al.
patent: 5066981 (1991-11-01), Kalyandurg
patent: 5084739 (1992-01-01), Kalyandurg et al.
patent: 5095340 (1992-03-01), Mahoney
patent: 5104761 (1992-04-01), Saha et al.
patent: 5106714 (1992-04-01), Saha et al.
patent: 5111245 (1992-05-01), DeCecca et al.
patent: 5132732 (1992-07-01), Kalyandurg et al.
patent: 5138388 (1992-08-01), Kamp et al.
patent: 5146278 (1992-09-01), Kroll et al.
patent: 5148220 (1992-09-01), Hilbert et al.
patent: 5162854 (1992-11-01), Hilbert et al.
patent: 5182608 (1993-01-01), Kroll et al.
patent: 5184194 (1993-02-01), Mosehauer et al.
patent: 5190841 (1993-03-01), Saha et al.
patent: 5190842 (1993-03-01), Saha et al.
patent: 5196887 (1993-03-01), Hilbert et al.
patent: 5227265 (1993-07-01), DeBoer et al.
patent: 5237127 (1993-08-01), DeCecca et al.
patent: 5239342 (1993-08-01), Kubo et al.
patent: 5241327 (1993-08-01), Rubin et al.
patent: 5245388 (1993-09-01), Rydelek et al.
patent: 5247331 (1993-09-01), Rydelek
patent: 5255053 (1993-10-01), Green et al.
patent: 5268249 (1993-12-01), Saha et al.
patent: 5268719 (1993-12-01), Rydelek et al.
patent: 5280302 (1994-01-01), Rubin et al.
patent: 5282002 (1994-01-01), Jacobs et al.
patent: 5291259 (1994-03-01), Weitzel et al.
patent: 5293201 (1994-03-01), Kamp et al.
patent: 5296894 (1994-03-01), Green et al.
patent: 5296898 (1994-03-01), Rubin et al.
patent: 5296905 (1994-03-01), Yousey et al.
patent: 5298358 (1994-03-01), Rubin et al.
patent: 5300988 (1994-04-01), Westbrook et al.
patent: 5306592 (1994-04-01), Saha
patent: 5313993 (1994-05-01), Corby et al.
patent: 5325161 (1994-06-01), Saha et al.
patent: 5332645 (1994-07-01), Saha et al.
patent: 5339140 (1994-08-01), Zeman et al.
patent: 5344731 (1994-09-01), Deboer et al.
patent: 5347345 (1994-09-01), Osterhoudt
patent: 5347347 (1994-09-01), Hilbert et al.
patent: 5376492 (1994-12-01), Stelter et al.
patent: 5400124 (1995-03-01), Kass et al.
patent: 5409791 (1995-04-01), Kaukeinen et al.
patent: 5484680 (1996-01-01), Goto et al.
patent: 5489975 (1996-02-01), Kaukeinen et al.
patent: 5500320 (1996-03-01), Saha
patent: 5512404 (1996-04-01), Saha
patent: 5592268 (1997-01-01), Uehara et al.
patent: 5640656 (1997-06-01), Hilbert et al.
patent: 5701550 (1997-12-01), Lofftus et al.
patent: 5705307 (1998-01-01), Tyagi et al.
patent: 5713064 (1998-01-01), Kasiske et al.
patent: 5732311 (1998-03-01), May et al.
patent: 5748218 (1998-05-01), Stelter et al.
patent: 5835832 (1998-11-01), Rimai et al.
patent: 5853941 (1998-12-01), Rimai et al.
patent: 5923933 (1999-07-01), Anzai et al.
patent: 5923937 (1999-07-01), Thompson et al.
patent: 5926679 (1999-07-01), May et al.
patent: 5998076 (1999-12-01), Mahabadi et al.
patent: 6125257 (2000-09-01), Sekine et al.
patent: 03-170978 (1991-07-01), None
patent: 04-097268 (1992-03-01), None
patent: 10-161423 (1998-06-01), None
patent: WO 85/00438 (1985-01-01), None

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