Ink jet recording head having temperature control heaters...

Details Ink jet recording head having temperature control heaters... Ink jet recording head having temperature control heaters...

2006-02-07

2008-10-14

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S015000

Reexamination Certificate

active

07434917

ABSTRACT:
In an ink jet recording head which can discharge ink droplets having different discharge amounts, stabilization of the ink discharge amount is efficiently achieved without upsizing and cost increase. In the ink jet recording head of the invention, three ink supply ports are provided in a recording element substrate. For a cyan ink discharge unit and a magenta ink discharge unit which are located on both side portions of a recording element substrate, a nozzle array having a large ink discharge amount and a nozzle array having a small ink discharge amount are provided across the ink supply port, and a temperature control sub-heater is arranged near the nozzle array having the small ink discharge amount.

REFERENCES:
patent: 6527367 (2003-03-01), Yabe
patent: 6591500 (2003-07-01), Suzuki et al.
patent: 6733117 (2004-05-01), Tajima et al.
patent: 6799841 (2004-10-01), Iri et al.
patent: 6830317 (2004-12-01), Tsuchii et al.
patent: 2006/0181578 (2006-08-01), Iijima
patent: 7-52387 (1995-02-01), None

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