Ink jet head

Details Ink jet head Ink jet head

1997-09-04

2000-04-18

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2045

Patent

active

060506784

ABSTRACT:
The value C defined between the width W1 of the ink chamber 2 and the width W2 of the piezoelectric element portion 7 disposed on the vibrating sheet 5, which is obtained based on an equation; C=(W1-W2)/(2.times.W2), is set in a range of 0.5 to 0.8. This value C=(W1-W2)/(2.times.W2) is an index value of an allowable range of displacement amount of the piezoelectric element portion 7, in which the ink ejecting speed is not influenced by the displacement when the piezoelectric element portion 7 is arranged on the vibrating sheet 5 with the displacement from a center of an upper plane of the ink chamber 2.

REFERENCES:
patent: 5604522 (1997-02-01), Miura et al.
patent: 5684520 (1997-11-01), Morikoshi et al.
patent: 5956829 (1999-09-01), Kitahara et al.

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