Developing device for developing charge images on a charge image

Details Developing device for developing charge images on a charge image Developing device for developing charge images on a charge image

1982-04-19

1984-07-17

Truhe, J. V.

Photocopying

Including fiber optics

355 14D, 118658, 118657, G03G 1500

Patent

active

044602669

ABSTRACT:
In a developer station for an electrophotographic printing or copying machine, there is provided a developer drum apparatus for producing optimum inking density and resolution of the charge images being passed through the developer station on a charge image carrier. The apparatus comprises a rotating hollow cylinder within which is contained a stationary magnet arrangement in the form of a series of rows of permanent magnets, each row being disposed longitudinally with the cylinder, supported on a stator carrier. The first row of magnets is disposed adjacent the lower end of the cylinder for attracting developer mix particles from the floor of the developer station housing and the succeeding rows of magnets are disposed along the transport path of particles on the cylinder to promote transport of the mix upwardly on the cylinder to an inking gap area with the charge image carrier. A final row of relatively wider magnets is disposed at the upper end of the cylinder with its longitudinal centerline substantially offset from the inking gap to promote uniform distribution of the mix along the length of the cylinder just prior to inking. The layer amount of developer mix carried by the rotating cylinder is set by an adjustable doctoring strip disposed beneath the first magnet row and a narrow transport channel defined between the cylinder and a housing wall along the mix transport path.

REFERENCES:
patent: 3784297 (1974-01-01), Ito et al.
patent: 3883240 (1975-05-01), Ito et al.
patent: 4324483 (1982-04-01), Tayawa et al.
patent: 4331100 (1982-05-01), Mochizuki et al.
patent: 4378753 (1983-04-01), Ueno et al.

Affiliated with

Also associated with

Rating

Developing device for developing charge images on a charge image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Developing device for developing charge images on a charge image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing device for developing charge images on a charge image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1488273