Ink supply apparatus

Details Ink supply apparatus Ink supply apparatus

2006-05-26

2009-10-06

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

07597430

ABSTRACT:
A supply path of ink to connect an exchangeable ink cartridge and a recording head for discharging ink is provided. Also, a pump which can supply the ink stored in the supply path through a confluent portion of the supply path and the pump; and an ink detecting sensor for detecting the ink in the supply path at the confluent portion or on the ink cartridge side with respect to the confluent portion are provided. When the ink detecting sensor detects that there is no ink, the detection result is reported, and after the exchange of the ink cartridge, the pump is drive-controlled to supply the ink to the supply path, and to return the air in the supply path back to the ink cartridge. A supply pressure of the pump is a pressure where a meniscus in the recording head is not broken.

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European Search Report, EP Appl'n No. 06 25 2755 (Counterpart to U.S. Appl. No. 11/420,691) dated Aug. 22, 2006.

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