Detection of a print recording material reservoir

Details Detection of a print recording material reservoir Detection of a print recording material reservoir

2006-11-21

2006-11-21

Huffman, Julian D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07137682

ABSTRACT:
Control circuit30determines whether or not all ink cartridges CA1through CA6are attached in the home position based on cartridge out signals COO. Control circuit30carries out communication with memory devices21through26and determines the presence or absence of communication malfunctions. When a communication malfunction develops in one of memory devices21through26, control circuit30determines if a communication malfunction is caused by ink cartridge30being detached and identifies detached ink cartridge CA using identifying information. When all of ink cartridges CA1through CA6are attached, control circuit30determines which of memory devices21through26has developed a communication malfunction and identifies ink cartridge CA in which a communication malfunction has developed using identifying information.

REFERENCES:
patent: 5049898 (1991-09-01), Arthur et al.
patent: 5719686 (1998-02-01), Sakamoto et al.
patent: 6616260 (2003-09-01), Skene et al.
patent: 6669322 (2003-12-01), Gaston et al.

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