Compact single component development system with modified toner

Details Compact single component development system with modified toner Compact single component development system with modified toner

1993-05-20

1994-04-19

Smith, Matthew S.

Photocopying

Contact printing

Light boxes

222DIG1, 355245, 355257, G03G 1506

Patent

active

053050649

ABSTRACT:
An electrophotographic apparatus in which toner particles are moved from the toner hopper or dispenser cartridge to the developer housing and onto the donor roller in a single component development system for use in color reprographic systems. A rotating holey tube toner agitator is modified to incorporate structure or grooves on the outer peripheral surface. Further, by placing a shrouded toner dispense auger inside the holey tube, the development system architecture stays compact and improved toner powder pushing through the pre-load of toner on the donor roller results, thereby insuring delivery of fresh toner evenly across the length of the developer housing. With more efficient pre-load, agitator rotational speed and bias can be reduced, leading to less toner effluents emanating from the developer housing without adversely affecting the cycle to cycle donor roller toner reload.

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