REDUCTION OF SPOT MISPLACEMENT THROUGH ELECTROSTATIC FOCUSING OF UNCHARGED DROPS
A method and apparatus which laterally focusses aqueous ink drops onto a substrate, using electric fields. The drops are not charged, and focusing results from the forces on the uncharged dielectric drop that occur in a nonuniform electric field. It is shown that initial lateral velocity misdirectio...
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Main Authors | , |
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Format | Patent |
Language | English French |
Published |
29.04.2003
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | A method and apparatus which laterally focusses aqueous ink drops onto a substrate, using electric fields. The drops are not charged, and focusing results from the forces on the uncharged dielectric drop that occur in a nonuniform electric field. It is shown that initial lateral velocity misdirection of the drops is corrected using electric field s. Lateral velocities which would produce drop displacements of -50.mu.m from their intended positions, at a height of 1mm above the ink surface, may be corrected to produce displacements of less than 2.5.mu.m. |
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Bibliography: | Application Number: CA19992271608 |