Ink jet recording apparatus with means for stopping printing and

Details Ink jet recording apparatus with means for stopping printing and Ink jet recording apparatus with means for stopping printing and

1997-01-16

1999-11-30

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2165

Patent

active

059929642

ABSTRACT:
An ink jet recording apparatus including: a printing head having a plurality of nozzle opening rows, the nozzle opening rows jetting ink drops separately from each other; a cap for selectively sealing the plurality of nozzle opening rows and a pressure device for forcibly discharging ink from the plurality of nozzle opening rows; and control means for causing the cap to seal the nozzle opening rows and the pressure device to forcibly discharge ink from the nozzle opening rows to perform a jetting recovery operation when an electric power is turned on or at a print start time, for causing ink drops to be jetted from the nozzle opening rows based on print data to perform a printing operation and stopping the printing operation for performing an ink jetting capability maintaining operation of the nozzle opening rows, and further causing the cap to seal the nozzle opening rows and the pressure device to forcibly discharge ink from the nozzle openings to perform the jetting recovery operation, wherein the controller stops the printing operation and the ink jetting capability maintaining operation with respect to at least one of the plurality of nozzle opening rows during the printing operation for another one of the plurality of nozzle opening rows.

REFERENCES:
patent: 4734718 (1988-03-01), Iwagami et al.
patent: 4970527 (1990-11-01), Gatten
patent: 5018884 (1991-05-01), Hirano et al.
patent: 5153614 (1992-10-01), Yamaguchi et al.
patent: 5341163 (1994-08-01), Hanabusa
Japanese Patent Abstract, JP 06 008458, Shinohara Isato, Jan. 18, 1994 "Driving method for ink jet recording head".
Japanese Patent Abstract, JP 04 348951, Mogi Nobuhiro, May 28, 1991, "Image Recording device".

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