Printing head and inkjet printer

Details Printing head and inkjet printer Printing head and inkjet printer

1997-12-04

2000-02-29

Barlow, John

Incremental printing of symbolic information

Ink jet

Controller

347 57, B41J 2205

Patent

active

060300655

ABSTRACT:
A printing head for an inkjet printer having two head sections, each featuring discharge nozzles, the two head sections being capable of discharging variable size ink drops to form varying printed dot diameters. One of the head sections has a first dot diameter range, and other head section has a second dot diameter range. A portion of the second dot diameter range overlaps the first dot diameter range. For gradation printing, the head sections of the printing head can be controlled to print an image utilizing the respective dot diameter ranges for each head section; however, for text printing, the head sections of the printing head are controlled to print an image utilizing the overlapping portion of the two dot diameter ranges. The printing head is capable of both high-quality, high-definition gradation printing as well as high-speed text printing.

REFERENCES:
patent: 4369455 (1983-01-01), McConica et al.
patent: 4503444 (1985-03-01), Tacklind
patent: 4746935 (1988-05-01), Allen
patent: 5208605 (1993-05-01), Drake
patent: 5412410 (1995-05-01), Rezanka

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