Image forming apparatus, image forming method, and recording...

Details Image forming apparatus, image forming method, and recording... Image forming apparatus, image forming method, and recording...

2011-08-30

2011-08-30

Nguyen, Lam S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S014000, C347S023000

Reexamination Certificate

active

08007064

ABSTRACT:
An image forming apparatus includes ink cartridges, image forming units, an ink-remaining-amount manager, a maintenance determiner, an information writer, an ink-amount estimator, and a maintenance-executability determiner. If an ink near-empty or empty state occurs in one of the ink cartridges due to image formation, the ink-amount estimator estimates an amount of ink required to execute the maintenance on the other ink cartridges based on the at least one of the need for and the type of maintenance determined by the maintenance determiner. If the maintenance-executability determiner determines that the maintenance is unexecutable on at least one of the other ink cartridges based on the required ink amount and a remaining ink amount, the maintenance-executability determiner determines that the unexecutable ink cartridge is at an ink near-empty or empty state and stops writing or updating information indicative of a spent state on the memory of the unexecutable ink cartridge.

REFERENCES:
patent: 6364442 (2002-04-01), Kawase et al.
patent: 6916076 (2005-07-01), Yoshiyama et al.
patent: 2008/0225070 (2008-09-01), Morishita et al.
patent: 1 025 997 (2000-08-01), None
patent: 1 213 148 (2002-06-01), None
patent: 2004-122424 (2004-04-01), None
patent: 2006-256005 (2006-09-01), None

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