Minebea Mitsumi Inc.

Fuji Xerox Co., Ltd.

Yujin Ishi

Yasuo Osada

Kosuke Shimizu

Kazunori Sato

Katsunori Saito

Kazuaki Shintani

Kensuke Ohara

Shinichi Tai

Takeshi Sakieda

Yuji Kameda

Eiji Yoshiya

The influence of a leakage magnetic flux from a magnet on a magnetic sensor configured to detect a magnetic flux from the permanent magnet is reduced. An absolute encoder includes a first magnet provided at a leading end side of a first worm gear part, a first angle sensor configured to detect a rotation angle of the first worm gear part corresponding to a change in a magnetic flux generated from the first magnet, a second magnet provided at a leading end side of a second worm wheel part, a second angle sensor configured to detect a rotation angle of the second worm wheel part corresponding to a change in a magnetic flux generated from the second magnet, and a gear base part configured to surround at least a part of a periphery of the first angle sensor and the second angle sensor.

Absolute encoder for reducing influence of a leakage magnetic flux

To correct an error based on a position of a main spindle. An absolute encoder includes a magnet as a permanent magnet provided at a leading end side of a first worm gear part, an angle sensor as an angle sensor configured to detect a rotation angle of the first worm gear part corresponding to a change in a magnetic flux generated from the magnet, a microcomputer configured to output angle position information of a first driving gear in a stopped state, wherein the microcomputer outputs angle error information of the first driving gear corresponding to the angle position information.

Absolute encoder, non-transitory storage that stores a program for outputting angle error information of absolute encoder, and method for outputting angle error information of absolute encoder

An absolute encoder includes a circuit board disposed away from a rotation shaft of a motor. The circuit board includes first fixing portions and a second fixing portion. At each of the first fixing portions, an adjustment portion is disposed between the circuit board and a top end portion of a given pillar is provided, the adjustment portion being set to adjust a distance between the circuit board and the top end portion of the given pillar, so that a height of the circuit board at each first fixing portion is set to be the same as a height of the circuit board at the second fixing portion. Each adjustment portion is a resist layer formed between a surface of the circuit board and a top end surface of a given first pillar.

Absolute encoder

An image reading substrate includes: an image reading unit that assigns read signals of an image to plural output terminals and outputs the read signals; at least one high-speed serial transmitting unit that is connected to the plural output terminals; and an outputting unit that outputs a high-speed serial signal outside, the high-speed serial signal being transmitted from the high-speed serial transmitting unit, in which at least distances of interconnects from the plural output terminals to the high-speed serial transmitting unit are set to be equal.

Image reading substrate, image reading device, and image forming apparatus having equal distances of interconnects from output terminals to high-speed serial transmitting unit

An image reading device includes: a reading unit in which light receiving elements are arranged in a line along a second direction; and a light source control section that controls emission of the light source members, the light source control section performing control such that light is emitted in a cycle order of the first, second, and third colors on the basis of a reference signal which is output at a preset time interval, and to make a time of emission of the light with the first color close to a time of start of emission of the light with the second color and to make a time of emission of the light with the third color close to a time of end of emission of the light with the second color.

Growing community of inventors

Kanagawa, Japan

Yujin Ishi