Ink jet recording apparatus provided with means for calculating

Details Ink jet recording apparatus provided with means for calculating Ink jet recording apparatus provided with means for calculating

1996-07-30

1998-06-09

Barlow, Jr., John E.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 36, B41J 2165

Patent

active

057642532

ABSTRACT:
In an ink jet recovery apparatus, a recovery operation of the recording head is performed by exhausting ink from the recording head. The recording apparatus has a waste ink storage tank to store the ink exhausted in the recovery operation. The amount of waste ink currently stored in the waste ink storage tank is calculated in accordance with the amount of ink exhausted up to the present, the elapsed time since the last recovery operation, and the amount of ink exhausted in the current recovery operation. The amount of ink stored in the waste ink storage tank can thus be accurately monitored, so that waste ink is not allowed to flow out of the storage tank. Users can be informed of overflow of the waste ink and thereby prompted to exchange the tank; space required for the tank can thus be reduced.

REFERENCES:
patent: 4965596 (1990-10-01), Nagoshi et al.
patent: 5170186 (1992-12-01), Shimamura et al.
patent: 5172140 (1992-12-01), Hirabayashi et al.
patent: 5245362 (1993-09-01), Iwata et al.

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