Recorders – Record receiver deforming
Patent
1974-09-26
1976-09-14
Hartary, Joseph W.
Recorders
Record receiver deforming
307236, G01D 1800
Patent
active
039810194
ABSTRACT:
An ink jet system printer of the charge amplitude controlling type wherein a predetermined phase relationship is established between separation of ink drops from a nozzle to a record receiving member and application of charging signals to a charging electrode, through detection of the amplitude of charge carried on ink drops contributable to phase determination. Charging signals of one polarity containing intelligence signals are supplied to the charging electrode to charge ink drops contributable to printing, whereas phase detecting signals of the opposite polarity to that of the charging signals are supplied to the charging electrode for the purpose of charging ink drops contributable to phase determination. Both of the charging signals and the phase detecting signals are mixed in a mixer circuit arrangement of a simple construction which consists of a pair of switches, before both signals are supplied to the charging electrode.
REFERENCES:
patent: 3154697 (1964-10-01), Widmer et al.
patent: 3596276 (1971-07-01), Lovelady
patent: 3750191 (1973-07-01), Naylor
patent: 3866237 (1975-02-01), Meier
Aiba Masahiko
Fujimoto Isao
Kasubuchi Takeshi
Hartary Joseph W.
Nippon Telegraph and Telephone Public Corporation
Sharp Kabushiki Kaisha
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