Ink drop charging device

An ink droplet charging device and method in which ink droplets are alternately charged positive, negative and with zero charges to prevent the accumulation of foreign particles upon charging electrodes. A nozzle jets an ink stream which is divided into ink droplets. A charging electrode disposed at...

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Bibliographic Details
Main Authors UEDA; MICHIO, KIKUCHI; MASATSUGU, TAMAI; MASAYOSHI
Format Patent
LanguageEnglish
Published 14.12.1982
Subjects
CALCULATING
COMPUTING
CORRECTION OF TYPOGRAPHICAL ERRORS
COUNTING
HANDLING RECORD CARRIERS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PHYSICS
PRESENTATION OF DATA
PRINTING
RECOGNITION OF DATA
RECORD CARRIERS
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:An ink droplet charging device and method in which ink droplets are alternately charged positive, negative and with zero charges to prevent the accumulation of foreign particles upon charging electrodes. A nozzle jets an ink stream which is divided into ink droplets. A charging electrode disposed at the position where the ink stream divides into the droplets controls the charge condition of the ink droplets according to whether the ink droplets are utilized for printing or not. Positive, negative and ground level voltages are applied to the charging electrode in synchronization with the formation of the ink droplets.
Bibliography:Application Number: US19800191621