Image forming method and system wherein a dot is recorded for ea

Details Image forming method and system wherein a dot is recorded for ea Image forming method and system wherein a dot is recorded for ea

1991-02-15

1993-05-11

Fuller, Benjamin R.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346107R, 346108, 346160, G01D 900, G01D 1514

Patent

active

052105458

ABSTRACT:
An image forming method for forming an image as an array of picture elements one line by one line includes the steps of detecting the content of the picture elements for every three consecutive picture elements included in each line, each set of the three consecutive picture elements being defined by an aimed picture element located at an end and carrying a content to be recorded, a second picture element located adjacent to the first picture element, and a third picture element located adjacent to the second picture element at a side away from the first picture element; recording a non-blank dot for the aimed picture element while setting the size of the recorded dot at a first predetermined size, when a first condition that the second picture element of the three consecutive picture elements represents a blank dot and a second condition that the third picture element represents a non-blank dot are met simultaneously; recording a non-blank dot for the aimed picture element while setting the size of the dot at a second predetermined size larger than the first predetermined size when none of the foregoing first and second conditions is met; and disabling the recording of non-blank dot when the aimed picture elements has a content corresponding to a blank dot. An Image forming system includes a shift register for holding image data representing the picture elements and processing parts or a driver controller or controlling light emitting devices according to the method steps.

REFERENCES:
patent: 4032977 (1977-06-01), Liao
patent: 4463364 (1984-07-01), Tamura
patent: 4878065 (1989-10-01), Fukushima et al.

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