Moistureless development cartridge for printers and copiers

Details Moistureless development cartridge for printers and copiers Moistureless development cartridge for printers and copiers

1991-04-01

1992-04-07

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355215, 355251, 118657, 430105, G03G 1506

Patent

active

051032643

ABSTRACT:
A printing machine, such as a copier or a printer, is provided with an electrophotographic engine cartridge including a toner cartridge, a rotatable photoconductor drum, and a specially designed magnetic brush development module. The development module utilizes a rotating magnetic roller, disposed in a developer sump, to transport a toner carrier developer material toward a side surface portion of the rotating drum onto which the toner portion of the transported developer is electrically transferred. The development module is operated in a unique closed loop fashion by the action of a specially designed blade member which strips away the toner-depleted developer from the roller and causes it to enter a recycling well. The depleted developer is transferred from the recycling well into the developer sump wherein it is mixed with toner entering the sump from the toner cartridge, and then re-applied, in the form of reconstituted developer, to the magnetic roller for subsequent toner transfer to the rotating drum. The printing machine is further provided with a housing containing a solid desiccant material that serves to absorb harmful moisture that may be present at times within the machine's internal modules.

REFERENCES:
patent: 4731632 (1988-03-01), Fukushima et al.

Affiliated with

Also associated with

Rating

Moistureless development cartridge for printers and copiers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Moistureless development cartridge for printers and copiers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moistureless development cartridge for printers and copiers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1898860