Fuji Xerox Co., Ltd.

Tsutomu Taji

Takashi Fujii

Takayuki Yoshida

Makoto Watanabe

Takashi Tanabe

Hajime Misumi

Hiroo Yoshida

Masaki Ueki

Sakae Ito

Takeshi Soda

Norio Hasegawa

Takashi Oyama

Hyeonju Kim

Shigehisa Suzuki

Hideyuki Akiba

Yukio Nizawa

A power supply unit includes primary and secondary circuits and a transformer. The primary circuit is connected to an alternating-current power supply and includes a switching device. The transformer includes primary and secondary windings. The primary winding receives an alternating current so that an alternating current is induced in the secondary winding. The received alternating current is generated through switching using the switching device. The secondary circuit rectifies, for output, the alternating current induced in the secondary winding. The primary winding includes first and second windings. When the alternating-current power supply is a power supply of a first voltage, the first winding is connected to the second winding in parallel in the primary winding. When the alternating-current power supply is a power supply of a second voltage higher than the first voltage, the first winding is connected to the second winding in series in the primary winding.

Power supply unit having a transformer with a primary winding and a secondary winding for supplying a voltage

A processor is provided, the processor including: an obtaining unit that obtains abnormality information related to an abnormality from an image forming device in which the abnormality occurs; an abnormality information storing unit that stores the abnormality information obtained by the obtaining unit as history information; a failure position information storing unit that stores failure position information for each phenomenon related to the abnormality; an extracting unit that extracts the failure position information corresponding to the latest abnormality information and abnormality information similar to the latest abnormality information among the abnormality information stored in the abnormality information storing unit from the failure position information storing unit; and an output unit that outputs an extracted result extracted by the extracting unit as specific deciding information of a cause related to the occurring abnormality.

Processor, image forming system and computer readable medium

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Kanagawa, Japan

Tsutomu Taji