Toshiba Tec Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Motoshi Ueda

Jun Ishii

Takahiro Kojima

Satoshi Hasegawa

Shinya Mori

Shunsuke Ando

An exposure head includes a light emitter, a plurality of switches, a transmission line, and a plurality of delay circuits. In the light emitter, a plurality of light emitting elements are arranged in a first direction. The switches are provided respectively corresponding to the light emitting elements. The switches are configured to perform switching such that, when a drive signal is input, a drive current flows through a light emitting element corresponding to the drive signal. The transmission line is configured to supply a drive signal to the switches. The delay circuits are provided respectively corresponding to the switches. The delay circuits are configured to delay the drive signal that is supplied to the switches through the transmission line in order from a first end side to a second end side of the light emitting elements arranged in the first direction.

Exposure head and image forming apparatus

An image forming apparatus comprises a first temperature detector to detect a temperature of a first portion of an optical scanning device in a printer. The first portion is proximate to a heat generating element in the optical scanning device. A second temperature detector is provided to detect a temperature of a second portion of the optical scanning device, which is farther from the heat generating element than the first portion. A controller is configured to perform alignment control for correcting a color positional shift of the printer when either a detected temperature change of the first portion is greater than or equal to a first threshold value or a detected temperature change of the second portion is greater than or equal to a second threshold value.

Image forming apparatus and image correction method

Certain embodiments provide an individual verification apparatus, comprising: a database configured to associate a face image having the brightness and the light reception direction of an image region with the personal information of an individual; a correction section configured to carry out a correction operation using a correction amount pre-stored for image data for verification having another brightness and another light reception direction; and a verification section configured to verify the individual using the face part in the image data for verification which is corrected in at least one of brightness and light reception direction and the face image in the database.

Individual verification apparatus, individual verification method and computer-readable recording medium

A toner remain detecting method according to this invention including: detecting toner density; supplying a toner amount corresponding to predetermined toner density; detecting a toner remain amount every time toner supply is carried out; and displaying toner near-empty if the toner remain amount becomes equal to or less than a prescribed value; wherein the toner supply step includes calculating a toner supply amount on the basis of a predetermined toner density level and the toner remain amount detected at the toner remain amount detecting step and supplying toner of the amount calculated at the toner supply amount calculating step. With the toner remain detecting method according to this invention, the toner remain amount can be detected more accurately than in conventional techniques.

Toner remain amount detecting method, image forming apparatus and MFP

An image forming apparatus has a main body containing an image forming unit which forms an image on a recording sheet by electrophotography, and a connector unit in which at least one external connection terminal is mounted. The external connection terminal is connected to a control unit which controls the image forming unit. The connector unit is supported on the main body so as to be rotationally movable to a position in which a plug can be inserted into the external connection terminal from the front of the main body, which corresponds to the operation side.

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Mishima, Japan

Motoshi Ueda