Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1998-03-27
2000-06-27
Brase, Sandra
Incremental printing of symbolic information
Ink jet
Ejector mechanism
B41J 206
Patent
active
060798173
ABSTRACT:
The electrostatic ink-jet recording head according to the present invention comprises: recording electrodes which eject ink towards the recording paper; an opposing electrode for generating a prescribed electric field between the recording electrodes and the opposing electrode; and ink discharge end sections formed in the vicinity of the recording electrodes. The ink discharge end sections are formed closer to the opposing electrode than the end portions of the recording electrodes.
In this case, the equipotential lines in the region of the ink discharge end sections when a recording voltage is applied are virtually perpendicular to the direction in which the ink is discharged. This is because, the recording electrodes are positioned slightly behind the ink discharge end sections in the ink discharge member. In this case, an electrostatic force acts on the toner particles near the ink discharge end sections in the direction of the ink discharge end sections. Therefore, even when a recording voltage is applied, there is a continuous supply of toner particles to the ink discharge end sections.
As described above, in the electrostatic ink-jet recording head according to the present embodiment, a convex ink meniscus is formed in front of the recording electrodes. Therefore, toner particles gather at the discharge points, even when a recording voltage is applied, and thus a sufficient quantity of toner particles for forming a desired dot size can be supplied.
REFERENCES:
patent: 4751531 (1988-06-01), Saito et al.
patent: 4751532 (1988-06-01), Fujimura et al.
patent: 5576747 (1996-11-01), Sohn
patent: 5748212 (1998-05-01), Takagi
patent: 5754199 (1998-05-01), Miki et al.
patent: 5754200 (1998-05-01), Minemoto et al.
patent: 5801730 (1998-09-01), Shima et al.
European Search Report Dated Jul. 29, 1999.
Hagiwara Yoshihiro
Minemoto Hitoshi
Mizoguchi Tadashi
Saeki Tomoya
Shima Kazuo
Brase Sandra
NEC Corporation
LandOfFree
Electrostatic ink-jet recording head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrostatic ink-jet recording head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrostatic ink-jet recording head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1778265