Seiko Epson Corporation

Yusuke Fukasawa

Seiji Takamatsu

Yasunori Fukumitsu

Hidetoshi Masuda

The image reading device includes a reading section configured to read an image from a document, a control section configured to perform control related to the reading of the image from the document, a display section configured to display information, and a USB coupling section configured to couple with a USB cable. The control section control to switch to any one of a plurality of mode types. When a power source is turned on, a control section determines one of a plurality of mode types based on USB negotiation, and then makes a liquid crystal display section display information that enables identifying the decided-on mode.

Image reading device and image reading method of image reading device

A medium transport device includes a transport section transporting a medium in a contact manner, an electrode detecting static electricity charged on the medium, and a static electricity detection circuit. The static electricity detection circuit includes a voltage clamp circuit clamping a detection signal input from the electrode to a predetermined voltage, an amplifier circuit amplifying an output signal of the voltage clamp circuit, a rectifier circuit rectifying an output signal of the amplifier circuit, and a comparator circuit serving as a determination circuit determining whether the medium exists based on an output signal of the rectifier circuit.

Medium transport device, image reading apparatus, and static electricity detection circuit detecting the static electricity of a sheet with an electrode, send the signal supplied from the electrode to a voltage clamp circuit, amplifier circuit and rectifier circuit in order to detect a medium

A medium transporting apparatus includes a feeding roller that rotates to transport a medium along a transportation path, an electrode installed downstream of the feeding roller on the transportation path and having conductivity, and an electric charge detecting circuit that outputs a signal having a magnitude corresponding to an amount of an electric charge, which moves from the medium to the electrode after the medium being transported along the transportation path comes into contact with the electrode.

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Kitakyushu, Japan

Yusuke Fukasawa