Environmental protection ink cartridge control

Incremental printing of symbolic information – Ink jet – Controller

Reexamination Certificate

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Details

C347S086000

Reexamination Certificate

active

10890954

ABSTRACT:
The present invention provides an environmental protection ink cartridge control chip, wherein the control chip is structured to embody a CPU control circuit, a data bus and a plurality of memory chips. The control chip is installed on an ink cartridge, and transmits signals to a printer by means of the data bus. The memory chips separately provide functionality to monitor ink amount within the original ink cartridge, set ink amount return point of the ink cartridge and restore ink amount value after the ink cartridge has reached the return point. Hence, the control chip can provide for repeated usage of the ink cartridge until the control chip malfunctions, thereby achieving effectiveness of environmental protection.

REFERENCES:
patent: 5670995 (1997-09-01), Kupcho et al.
patent: 6616255 (2003-09-01), Murakami et al.
patent: 6995861 (2006-02-01), Saruta et al.
patent: 7029083 (2006-04-01), Merz et al.
patent: 2005/0172118 (2005-08-01), Nasu

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