Ink jet recording apparatus and ink end judging method...

Details Ink jet recording apparatus and ink end judging method... Ink jet recording apparatus and ink end judging method...

2005-07-05

2005-07-05

Brooke, Michael S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

06913336

ABSTRACT:
In order to judge an ink end state of at least one of ink cartridges detachably mounted on a recording head incorporated in an ink jet recording apparatus, a consumed ink amount in each ink cartridge is counted. When the counted consumed ink amount of one ink cartridge reaches a first value indicating the ink end state, a count value is added to the counted consumed ink amounts of any other ink cartridges, in order to obtain verification count values. When at least one of the verification count values reaches a second value which is less than the first value, it is judged that the ink cartridge in which the verification count value reaches the second value is in the ink end state.

REFERENCES:
patent: 6012794 (2000-01-01), Nakano et al.
patent: 6070958 (2000-06-01), Kanome
patent: 0 841 173 (1998-05-01), None
patent: 5-16384 (1993-01-01), None
patent: 09-011490 (1997-01-01), None
patent: 11-10900 (1999-01-01), None

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