Ink jet head and ink jet printer

Details Ink jet head and ink jet printer Ink jet head and ink jet printer

2006-04-18

2006-04-18

Shah, Manish (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S027000, C347S048000

Reexamination Certificate

active

07029085

ABSTRACT:
There is provided an ink jet head including a first drive element which is provided in correspondence with each ink jet nozzle and which has a thin film resistor for ejecting ink droplets from each ink jet nozzle and a thin film conductive electrode for feeding electricity to the thin film resistor, a second drive element which is formed in a vicinity of the first drive element and which vibrates ink in each ink jet nozzle corresponding to the first drive element for changing a meniscus position and a drive signal control device which controls at least one of a drive signal given to the first drive element and a drive signal given to the second drive element so that the ink droplets can be ejected at a desired meniscus position of the ink in each ink jet nozzle. There is also provided an ink jet printer using the ink jet head. The size of ink droplets can be made uniform, whereby a high-quality image can be recorded. The burden in the semiconductor process of a thermal ink jet head can be reduced which enables improvement of the production yield.

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