Incremental printing of symbolic information – Ink jet – Controller
Patent
1996-09-27
1998-09-01
Le, N.
Incremental printing of symbolic information
Ink jet
Controller
347 14, B41J 2938
Patent
active
058017224
ABSTRACT:
The print head 7 is designed to eject ink onto a recording head with a plurality of resolution degrees. A plurality of kinds of recording papers have different degrees of ink permeability. Accordingly, ink dots of different diameters can be printed on different kinds of papers. There is a possibility that the characteristic of the recording medium will not properly correspond to the resolution with which the print head 7 is controlled to print images on the recording head. In this case, the printed images will have a low quality. Accordingly, it is necessary to perform a trial printing many times. In order to save time and ink, a characteristic of the recording paper is judged, and the resolution, at which the print head 7 is to be controlled to print images on the recording paper, is selected dependent on the judged result. The printer 1 can therefore reproduce a high quality image and is good in its economical view. The CPU 11 receives image data from the external CPU 50. The resolution data memory 12a stores a resolution value which corresponds to a characteristic data obtained by the paper characteristic detector 16. The control signal conversion portion 20 converts the image data into a control signal for controlling the print head 7 to print the image data onto the recording medium at the resolution stored in the memory 12a.
REFERENCES:
patent: 4617580 (1986-10-01), Miyakawa
Komiya Ryohei
Ueda Masashi
Brother Kogyo Kabushiki Kaisha
Le N.
Nguyen Thinh
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