Method of cleaning a print head using a plurality of cleaning op

Details Method of cleaning a print head using a plurality of cleaning op Method of cleaning a print head using a plurality of cleaning op

1997-06-03

1999-08-24

Warden, Jill

Cleaning and liquid contact with solids

Processes

Combined

134 21, 134 42, 347 23, 347 30, 347 33, B08B 704, B41J 2165

Patent

active

059420430

ABSTRACT:
A method of cleaning is used for cleaning a print head used in an ink type recording apparatus. The head cleaning operation includes a suction operation in which a head cleaning mechanism performs suction of the tips of ink nozzles and an ejection operation in which ink is ejected through the ink nozzles. A first cleaning operation is performed if the print head is cleaned for the first time after the power-up of the recording apparatus. A second cleaning operation is performed if the print head has been cleaned at least one time after the power-up of the recording apparatus. The first operation includes a combination of cleaning conditions and the second operation includes a combination of cleaning conditions different from the first cleaning operation. There may be a plurality of the first cleaning operations each of which includes a corresponding cleaning condition, and one of the plurality of the first cleaning operations may be selected according to an elapsed time from when the recording apparatus is turned off.

REFERENCES:
patent: 4362572 (1982-12-01), Wallace
patent: 4567494 (1986-01-01), Taylor
patent: 5126765 (1992-06-01), Nakanura
patent: 5565898 (1996-10-01), Sakuma

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