Ink jet recovery pump with variable driving conditions

Details Ink jet recovery pump with variable driving conditions Ink jet recovery pump with variable driving conditions

1994-12-23

2000-04-18

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 30, B41J 2165

Patent

active

060506687

ABSTRACT:
To eliminate sticking problems caused by ink thickening inside a pump while the pump is on standby, a driving force and/or a drive sequence by which, in a case in which the pump for expelling ink from the discharge port of an ink jet head is not driven for a predetermined time, the pump is driven differently from its normal operation.

REFERENCES:
patent: 4967204 (1990-10-01), Terasawa et al.
patent: 5153614 (1992-10-01), Yamaguchi et al.
patent: 5245362 (1993-09-01), Iwata et al.
patent: 5298923 (1994-03-01), Tokunaga et al.
patent: 5357275 (1994-10-01), Ikado et al.
patent: 5389961 (1995-02-01), Takagi
Humphries et al, Industrial Electronics 2nd Ed., 1986, pp. 208-237.

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