Optical fixing unit, illuminance correcting method for the...

Details Optical fixing unit, illuminance correcting method for the... Optical fixing unit, illuminance correcting method for the...

2005-03-22

2005-03-22

Pham, Hai (Department: 2861)

Incremental printing of symbolic information

Thermal marking apparatus or processes

Pre or post image recording treatment

Reexamination Certificate

active

06870558

ABSTRACT:
A yellow luminous-element array, which is an optical fixing unit, includes a large number of yellow LEDs emitting ultraviolet rays. The LEDs in each of lines extending in a feeding direction are connected in series. Integral illuminance of each line is adjusted by changing electrical energy to be supplied to the respective lines. The integral illuminance of each line extending in the feeding direction is measured to obtain illuminance distribution relative to a scanning direction when the yellow luminous-element array is examined at the time of manufacture thereof. The integral illuminance of each line is corrected so as to even the illuminance distribution.

REFERENCES:
patent: 5119132 (1992-06-01), Butler
patent: 5229870 (1993-07-01), Inoguchi
patent: 5986682 (1999-11-01), Itou
patent: 6583791 (2003-06-01), Berryman et al.
patent: 2001171157 (2001-06-01), None

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