Container for printing material and detector used for container

Details Container for printing material and detector used for container Container for printing material and detector used for container

2007-04-10

2007-04-10

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

10637437

ABSTRACT:
A cartridge100utilizes a carrier wave of a signal transmitted from a printer PT to generate driving electric powers required for driving respective circuits elements including a sensor SS of a piezoelectric element. The generated electric power is supplied to a sensor driving voltage generator220and is then to the sensor SS. The sensor driving voltage generator220supplies the electric power to the sensor SS via a supply circuit having a higher impedance. The sensor SS is discharged via a discharge circuit having a lower impedance. Even when there is a limited electric power supply, the structure enables the sensor SS to release a large energy in a unit time and ensures a sufficient displacement of vibration in the sensor SS. This arrangement of the invention ensures application of a sufficiently high voltage to the piezoelectric element of he sensor SS and causes a sufficient resonance of the sensor SS, even when a cartridge communicating with a printing device receives only a small electric power supply.

REFERENCES:
patent: 5500657 (1996-03-01), Yauchi et al.
patent: 6938978 (2005-09-01), Kosugi et al.
patent: 6984012 (2006-01-01), Asauchi
patent: 6994415 (2006-02-01), Asauchi et al.
patent: 7011384 (2006-03-01), Kosugi et al.
patent: 2001-147146 (2001-05-01), None

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