Abstract: A drilling tool of the invention includes an air supply pipe inserted through an inner circumference of a drilling pipe having a tip portion on which a tool main body is disposed. The air supply pipe being configured to supply compressed air. A supply channel is provided on an outer circumference of the drilling pipe. A discharge channel is formed on the tip portion of the tool main body. The discharge channel is configured to discharge cuttings generated together with the drilling fluid into a space between the drilling pipe and the air supply pipe. An exhaust gas outlet opening into the space is formed at a tip portion of the air supply pipe.

Abstract: An image forming apparatus has a sheet reading portion, an assimilation surveying portion, a color changing portion, and a printing portion. The sheet reading portion reads image data from a transparent sheet tinted with a predetermined color owned by a user. The assimilation surveying portion looks for, out of printable colors, a particular color that assimilates to the color of the read image data. The color changing portion changes, out of the data of a predetermined document accepted from the user, the color of the data of a concealable character, which is a character concealed when overlaid with the transparent sheet, to the found particular color. The printing portion prints, out of the data of the document, the data of the concealable character in the particular color.

Abstract: There are provided a connector of which manufacture and maintenance are easy and an endoscope system. A connector is a connector for an endoscope that is connected to a light source device. The connector includes a light guide part that guides illumination light, a wireless communication unit that wirelessly communicates with the light source device, a wireless power receiving unit that wirelessly receives power supplied from the light source device, and a housing that is formed in a flat shape in which a horizontal length is longer than a vertical length in a connection posture where the connector is connected to the light source device. The light guide part, the wireless communication unit, and the wireless power receiving unit are provided on a front surface of the housing, which faces the light source device, so as to be lined up in a horizontal direction.

Abstract: There is provided a connector for an endoscope that is easy to grip and is easily connected to a light source device. The connector includes: a light guide part; a wireless communication unit; a wireless power receiving unit; a housing section which houses the wireless communication unit and the wireless power receiving unit, and in which the light guide part protrudes from a front surface thereof, an upper surface thereof is a curved surface, and a lower surface thereof is a flat surface; a grip section that has a shape in which a cross-sectional area decreases toward a rear portion from a front portion thereof, and includes a concave finger placing portion which is provided on the upper surface ; and a finger locking portion that is provided between the housing section and the grip section and locks a forefinger on a lower surface of the connector.

Abstract: There is provided a connector for an endoscope that is easy to grip and is easily connected to a light source device. The connector includes: a light guide part, a wireless communication unit, a wireless power receiving unit, a housing section which houses the wireless communication unit and the wireless power receiving unit and in which the light guide part protrudes from a front surface thereof positioned close to a light source device in a connection posture where the connector is connected to the light source device, and a grip section that includes a concave finger placing portion on which a thumb is placed and which is provided on an upper surface thereof on a central axis of the light guide part in a case in which the grip section is viewed from an upper surface of the connector positioned on a vertically upper side in the connection posture.

Abstract: An image forming apparatus includes a punch hole detection section, a position calculating section, an image adding section, and an image forming section. The punch hole detection section analyzes image data of a scan image obtained through scanning of an original document to detect two punch hole images. The position calculating section calculates a midpoint between the two punch hole images in the scan image when the two punch hole images are detected. The image adding section adds image data of a midpoint indicating image to the image data of the scan image so that the midpoint indicating image is added to the scan image at a position corresponding to the midpoint. The image forming section performs image formation on a sheet based on the image data of the scan image to which the image data of the midpoint indicating image has been added.

Abstract: This image reading apparatus includes an image reading unit, an average-density calculation unit, a statistical processing unit, and a blank-page determination unit. The image reading unit reads an original image and outputs image data of the original image. The average-density calculation unit calculates an average density value of block image data for a plurality of block images, which are obtained by dividing the original image, based on the image data output from the image reading unit. The statistical processing unit determines a characteristic value of the average density value distribution associated with the block images. The blank-page determination unit determines whether or not the original image is a blank image based on the characteristic value determined by the statistical processing unit.

Abstract: An image forming apparatus has a sheet reading portion, an assimilation surveying portion, a color changing portion, and a printing portion. The sheet reading portion reads image data from a transparent sheet tinted with a predetermined color owned by a user. The assimilation surveying portion looks for, out of printable colors, a particular color that assimilates to the color of the read image data. The color changing portion changes, out of the data of a predetermined document accepted from the user, the color of the data of a concealable character, which is a character concealed when overlaid with the transparent sheet, to the found particular color. The printing portion prints, out of the data of the document, the data of the concealable character in the particular color.

Abstract: An image forming apparatus includes a determination section, acquisition section, generation section, notification section, and a management section. The determination section determines, when receiving a print job from a predetermined terminal apparatus via a network, whether or not the print job is a private print job. If the print job is a private print job, the acquisition section acquires, from another image forming apparatus coupled to the image forming apparatus to communicate with the image forming apparatus, information regarding the another image forming apparatus. The generation section generates a one time password on the basis of the acquired information. The notification section notifies the terminal apparatus of the generated one time password. The management section manages the generated one time password in association with the private print job and, when receiving the one time password from a user, executes the private print job associated with the one time password.