Development apparatus

Details Development apparatus Development apparatus

1991-03-11

1992-01-07

Moses, R. L.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

118658, 355251, 355328, G03G 1509

Patent

active

050780875

ABSTRACT:
An electrophotographic printing machine in which an electrostatic latent image is recorded on a photoconductive surface. One portion of the latent image is a discharged area with the other portion of the latent image being a charged area. The discharged image area is developed with toner particles of a first color and polarity by a first developer unit. No greater than 2% by volume of these toner particles have a diameter greater than about 20 microns. The first developer unit generates a weak magnetic field in the development zone and a strong magnetic field at the entrance and exit of the development zone. A second developer unit develops the charged image area with toner of a second color and polarity. The colors of the toners are different from one another.

REFERENCES:
patent: 4833505 (1989-05-01), Furuya et al.
patent: 4894685 (1990-01-01), Shaji
patent: 4908291 (1990-03-01), Fuma et al.
patent: 5009973 (1991-04-01), Yoshida et al.

Affiliated with

Also associated with

Rating

Development apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Development apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Development apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-814321