Appeal No. 2000-0335
Application No. 08/780,551 Page 2
BACKGROUND
Appellants' invention relates to a toner projection system.
An understanding of the invention can be derived from a reading
of exemplary claims 1 and 13, which are reproduced as follows:
1. A toner projection device, comprising:
a first electrode;
a second electrode
a third electrode;
an orifice in the third electrode;
the second electrode interposed between the first and third
electrodes and the second electrode spanning the orifice in the
third electrode;
a source of a.c. voltage operatively connected to the first
and third electrodes;
a control means for intermittently applying a d.c. voltage
to the second electrode.
13. A method for projecting toner in a projector having
first second and third electrodes arranged generally parallel to
one another in a spaced apart relationship, the second electrode
interposed between the first and third electrode and the third
electrode having at least one orifice therein, the method
comprising the steps of:
forming a cloud of toner particles between the first and
third electrodes; and
projecting toner particles through the orifice in the third
electrode.
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007