Ink jet printing apparatus and preliminary ejecting method

Details Ink jet printing apparatus and preliminary ejecting method Ink jet printing apparatus and preliminary ejecting method

2004-01-28

2008-05-27

Huffman, Julian D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07377611

ABSTRACT:
The present invention provides an ink jet printing apparatus including feeding structure for feeding a print medium into the printing apparatus, conveying structure for conveying the print medium fed by the feeding structure to a position where printing head can carry out printing, and scanning structure for moving and scanning a carriage to a position where the printing head can be subjected to preliminary ejection, wherein a paper feeding and conveying operation is performed simultaneously with a preliminary ejecting operation of a print head, while not all of the feeding structure, conveying structure, and scanning structure are simultaneously driven. Therefore, by providing a power supply capacity sufficient to drive two of the three structures, it is possible to cause the print head to perform a preliminary ejecting operation without suspending the operation of feeding and conveying the print medium.

REFERENCES:
patent: 4872026 (1989-10-01), Rasmussen et al.
patent: 6364446 (2002-04-01), Ishikawa et al.
patent: 6497468 (2002-12-01), Otsuka
patent: 6659580 (2003-12-01), Horikoshi
patent: 6714748 (2004-03-01), Nakayasu et al.
patent: 7029095 (2006-04-01), Tsuboi et al.
patent: 2002/0054185 (2002-05-01), Kinoshita

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