Ink jet printer and control method therefor

Details Ink jet printer and control method therefor Ink jet printer and control method therefor

1997-04-22

2000-03-28

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 35, B41J 2165

Patent

active

060422149

ABSTRACT:
An ink jet printer and control method therefor efficiently eliminates temporary ink eject defects during print interruptions. A time interval, i.e., the time lapse between a previous ink ejecting operation and a present ink ejecting operation, is evaluated before printing. If the time interval is less than a first time reference value (t1), an ink purging operation is not performed or is performed only a first minimum number of times. If the time interval is between first and second time reference values (t1.ltoreq.TI<t2), ink purging is executed a second number of times. If the time interval is greater than or equal to the second time reference value (t2.ltoreq.TI), ink purging is executed a third number of times that is less than the specified second number of times.

REFERENCES:
patent: 5252993 (1993-10-01), Tomii et al.
patent: 5341163 (1994-08-01), Hanabusa
patent: 5572242 (1996-11-01), Fujii et al.
patent: 5583547 (1996-12-01), Gast et al.

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