Appeal No. 1999-1652 Page 3
Application No. 08/758,369
Claim 1, which is representative for our purposes,
follows:
1. An ink jet recording head for ejecting
liquid ink having charged toner particles
comprising:
a head body;
an ink chamber in said head body for receiving a
liquid ink containing a plurality of charged toner
particles, said ink chamber having a front end, a
rear end, an ink inlet port disposed adjacent said
rear end, an ink outlet port disposed adjacent said
front end, and an ink ejecting slit extending along
the front end of said ink chamber;
a set of electrodes including (1) a plurality of
ejection electrodes arranged within said ink
chamber, said plurality of ejection electrodes
having a plurality of tips along said ink ejecting
slit for ejecting the plurality of charged toner
particles from said ink chamber, (2) an
electrophoretic electrode disposed within said ink
chamber and (3) an opposing electrode disposed
outside said ink chamber and opposed to said
plurality of tips of said plurality of ejection
electrodes, said ink inlet port disposed between
said electrophoretic electrode and said plurality of
tips of said plurality of ejection electrodes; and
an ink reservoir, disposed above said ink
chamber and connected to said ink inlet port and
said ink outlet port, for providing the liquid ink
by gravity to said ink chamber through said ink
inlet port and for receiving the liquid ink from
said ink chamber through said ink outlet port.
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