Ink jet recorder

Details Ink jet recorder Ink jet recorder

1998-06-30

2000-11-14

Lee, Susan S. Y.

Incremental printing of symbolic information

Ink jet

Controller

347 11, B41J 2938

Patent

active

061459496

ABSTRACT:
A recorder includes a recording head, which has an ink channel and a nozzle communicating with the channel. A driver can drive the head to eject ink from the channel out through the nozzle. A temperature detector detects one or both of ink temperature and ambient temperature. A memory stores different drive waveforms. Depending on the temperature detected by the detector, a controller selects one of the stored waveforms for predetermined recording density. The controller sends the selected waveform to the driver to control the ejection of ink from the head. Only by controlling the drive voltage, it was not possible to secure constant recording density at various temperatures. However, it is possible to do so by using one of the different waveforms. The waveforms may each include a first pulse for ejecting ink and a second pulse for damping the ink vibration in the channel.

REFERENCES:
patent: 5189440 (1993-02-01), Takakuwa et al.
patent: 5477245 (1995-12-01), Fuse
patent: 5485179 (1996-01-01), Otsuka et al.
patent: 5502469 (1996-03-01), Watanabe
patent: 5581281 (1996-12-01), Fuse
patent: 5610638 (1997-03-01), Courtney
patent: 5736994 (1998-04-01), Takahashi
patent: 5894314 (1999-04-01), Tajika et al.
patent: 5907336 (1999-05-01), Hayakawa
patent: 5946006 (1999-08-01), Tajika et al.

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