Abstract: An improved dircorotron shield for use in an electrophotographic photorecptor printer. The improved dicorotron shield uses titanium or a titanium alloy to form the dicorotron shield, thereby eliminating the need for a base layer or coating to neutralize the production of deteriorative acids that impair or weaken the surface of the photoreceptor. The use of titanium or a titanium alloy limits the production of unstable ozone O3 otherwise occurring due to the high energy agitation of atmospheric oxygen O2 caused by the charging of the corona device the dicorotron shield surrounds. By reducing the production of ozone O3, the formation of acids is reduced as well. As a result of the reduced acids formed, the titanium or titanium alloy dicorotron shield requires less cleaning or maintenance or replacement.

Abstract: A mixing apparatus adapted to receive toner particles from a toner container and carrier granules from a developer unit. The mixing apparatus comprises a housing defining a chamber for receiving the toner particles and carrier granules and a mixer, disposed in the chamber of the housing, to mix the carrier granules and toner particles with one another. The mixing apparatus further comprises a discharger for discharging toner particles and carrier granules from the chamber of the housing to the developer unit.