Method and device for restoring ink jet performance of ink jet r

Details Method and device for restoring ink jet performance of ink jet r Method and device for restoring ink jet performance of ink jet r

1994-03-18

1996-10-29

Barlow, Jr., John E.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

417326, B41J 2165

Patent

active

055701167

ABSTRACT:
A method of recovering ink jet performance of an ink jet recording apparatus, comprises the steps of: first covering a nozzle surface of an ink jet head with a cap; sucking the nozzle surface of the ink jet head to a vacuum by driving a variable vacuum suction pump for suction at a normal suction speed, the variable vacuum suction pump being connected to the cap through a communication member so as to communicate therewith; and thereafter driving the variable vacuum suction pump for idle suction at a speed that is lower than the normal suction speed with the cap moved away from the nozzle surface of the ink jet head.

REFERENCES:
patent: 4739340 (1988-04-01), Terasawa
patent: 5164748 (1992-11-01), Katayanagi et al.

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