Image forming apparatus utilizing a...

Details Image forming apparatus utilizing a... Image forming apparatus utilizing a...

2007-03-27

2007-03-27

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Electric generator or piezoelectric device

C315S2090PZ, C310S311000

Reexamination Certificate

active

11333075

ABSTRACT:
A piezoelectric-transformer high-voltage power supply in combination with an image-forming apparatus including a latent-image forming section configured to form an electrostatic latent image on an image carrier, a developing section configured to form a toner image on the electrostatic latent image, and a transfer section configured to transfer the toner image onto a transfer material includes a piezoelectric transformer; a piezoelectric-transformer drive circuit; an output-voltage setting-signal output circuit configured to output an output-voltage setting-signal; an output-voltage detector circuit, and a drive control circuit configured to output a control signal on the basis of a signal from the output-voltage detector circuit and the output-voltage setting-signal, for controlling the piezoelectric-transformer drive circuit. The output-voltage setting-signal output circuit outputs an output-voltage setting-signal corresponding to a voltage lower than a target voltage and, then, another output-voltage setting-signal corresponding to the target voltage.

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patent: 6028388 (2000-02-01), Shimada
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patent: 6654221 (2003-11-01), Noma et al.
patent: 6724126 (2004-04-01), Chou
patent: 2002/0121865 (2002-09-01), Nakatsuka et al.
patent: 11-206113 (1999-07-01), None

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