(19)
(11) EP 0 097 823 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.04.1985 Bulletin 1985/16

(43) Date of publication A2:
11.01.1984 Bulletin 1984/02

(21) Application number: 83105263

(22) Date of filing: 27.05.1983
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 30.06.1982 US 393922

(71) Applicant: International Business Machines Corporation
 ()

(72) Inventors:
  • Aviram, Ari
     ()
  • Hendriks, Ferdinand
     ()

   


(54) Ink jet recording system


(57) An apparatus for liquid jet recording systems is described for providing drop-on-demand ink from a reservoir wherein the ink contained in the reservoir is a wax-based hot-melt ink which undergoes a liquid-solid phase transition. The apparatus includes an ink reservoir (10), a nozzle (12), and a piezoelectric transducer (14) connected to a source of electrical pulses to provide exitation to cause droplets of ink to be moved from the reservoir and out through the nozzle. A unique meltable wax-based ink (95 percent paraffin wax and 5 percent carnauba wax) capable of undergoing a liquid-to-solid phase transition is contained in the reservoir (10) which includes heaters (16) which are employed to impart thermal energy to the ink to carry out the phase change.






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