Incremental printing of symbolic information – Ink jet – Controller
Patent
1993-11-10
1999-11-23
Le, N.
Incremental printing of symbolic information
Ink jet
Controller
347 14, 347 37, B41J 25308
Patent
active
059887842
ABSTRACT:
Ink jet recording encounters deviations in the position at which a recorded dot is applied due to changes in the distance from the recording head to a recording medium, the carriage movement speed and the ink discharge speed or the like. When bidirectional recording is performed while moving the carriage having the recording head mounted thereon, deviations of the recorded dot may occur in the forward and rearward recording operations. The present invention is arranged in such a manner that values for correcting the deviations occurring in bidirectional recording and corresponding to the changes of the distance from the recording head to a recording medium, the carriage movement speed and the ink discharge speed or the like are previously stored. A drive signal, the timing of which has been corrected with the correction value, is used to operate the apparatus so that high-quality recordings free from deviations occurring in the bidirectional recording operation are obtained. The present invention disclosed a recording apparatus having a plurality of recording heads mounted on a carriage thereof, the recording apparatus being arranged in such a manner that the carriage movement speed is detected to determine the recording timing of the plural recording heads to prevent the deviation of dots formed by the plural recording heads due to the changes in the moving speed caused by changes in the environment of the apparatus to record high quality images.
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Kanemitsu Shinji
Kashimura Makoto
Matsui Shinya
Morioka Hisashi
Nitta Tetsuhiro
Canon Kabushiki Kaisha
Le N.
Pham Hai C.
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