Incremental printing of symbolic information – Ink jet – Controller
Patent
1996-06-19
1999-05-11
Hilten, John
Incremental printing of symbolic information
Ink jet
Controller
347 14, 347 19, B44J29/38
Patent
active
059032855
ABSTRACT:
An ink cartridge detection circuit and method for detecting whether an ink cartridge is mounted in an ink jet recording apparatus. The ink cartridge circuit includes a driver for driving a corresponding nozzle by applying a driving power supply voltage to a corresponding heating element; a voltage detector connected to the heating elements for detecting a voltage level of the driving power supply voltage dropped by means of driving of the heating elements; and a controller for driving one or more of the heating elements through the driver and for comparing a voltage level detected by the voltage detector with a preset reference voltage level in order to detect whether an ink cartridge is mounted on a carriage of the ink jet recording apparatus.
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Ju Young-Bok
Lee Jae-Han
Bushnell Esq. Robert E.
Hilten John
Samsung Electronics Co,. Ltd.
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