Browse Prior Art Database

Toner Dispenser

IP.com Disclosure Number: IPCOM000081988D
Original Publication Date: 1974-Sep-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Daniels, RA: AUTHOR

Abstract

A toner dispenser incorporates a flexible spline which serves to both meter out a precise amount of toner, as well as to seal the toner within the dispenser.

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Toner Dispenser

A toner dispenser incorporates a flexible spline which serves to both meter out a precise amount of toner, as well as to seal the toner within the dispenser.

Toner dispenser 11 includes a housing 13 having end walls and elongated side walls forming a bottle for containing toner therein. The housing 13 has an elongated opening at the bottom thereof with a cylindrical member 15 mounted within the opening. The cylindrical member 15 has flexible splines 17 mounted radially at equal increments around its circumference. The side walls of the housing 11 are positioned to extend downwardly, terminating in boss members 19 having a cylindrical surface providing contact surfaces on two sides with the spline cylindrical member 15.

The flexible splines 17 interact with the cylindrical internal surface wall, to provide a movable seal for preventing unwanted toner from escaping from housing 13. When it is desirous to meter toner from dispenser 10, the cylindrical member 15 is rotated. The voids between the splines 17 become loaded with toner particles as the cylindrical member 15 is rotated through a quantity of such material, and each individual void is capable of loading and storing approximately an equal amount of material uniformly along the length of the cylindrical member
15. Toner is loaded into the splines 17 by a combination of gravitational forces and by the sequentially unflexing of the splines, as they dislodge from the internal cylindrical surface o...