| (57) An image information control apparatus includes:
a. first means for generating and outputting an image information transfer timing
signal for controlling a transfer timing of image information;
b. second means for thinning the image information transfer timing signal transferred
from the first means in accordance with an environmental temperature and outputting
a thinned image information transfer timing signal;
c. third means for controlling a voltage waveform upon reception of the image information
transfer timing signal; and
d. fourth means for controlling the third means so that the voltage waveform is kept
constant during a period of at least two continuous image information transfer timing
signals output from the second means.
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