Noise masking device and method for use in an image forming appa

Details Noise masking device and method for use in an image forming appa Noise masking device and method for use in an image forming appa

1996-10-28

1999-02-02

Wysocki, Jonathan

Electrophotography

Combined with diverse subject matter

318461, 318128, G03G 2100

Patent

active

058677488

ABSTRACT:
A noise masking device for a low-cost laser beam printer, a copier or the like for performing a noise masking with respect to a noise of a drive motor of an image forming apparatus while affording no psychological unpleasant feeling due to a frequency fluctuation thereof. The noise masking device of the image forming apparatus having the drive motor which becomes a source of the noise upon operation thereof includes signal generating means for generating a correlation signal which correlates with the noise, a speaker for generating a masking sound which masks the noise and masking sound control means for controlling the speaker to vary the masking sound corresponding to the variation in the correlation signal.

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