Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1995-03-06
1997-12-23
Hartary, Joseph W.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 30, 347 32, 347 35, B41J 2165, B41J 205
Patent
active
057011460
ABSTRACT:
An ink jet recording apparatus includes a recording head for performing recording by discharging ink by forming a bubble by applying thermal energy to a heat acting portion of an ink holding portion of the recording head. Thermal energy is generated in the recording head and a cap sealingly caps a discharge opening forming surface of the recording head. Ink is sucked from the cap and positive recovery is effected so that 10.sup.4 or more times of preliminary discharges are performed toward the cap which is detached from the recording head, by supplying energy greater than energy at a recording condition by predetermined multiples of a minimum energy E.sub.o required for generating the bubble, and for causing the ink to be sucked in the cap that is open to atmosphere.
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Akiyama Yuji
Arai Atsushi
Hirabayashi Hiromitsu
Kurata Tetsuji
Matsubara Miyuki
Canon Kabushiki Kaisha
Hartary Joseph W.
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