Abstract: An image forming apparatus includes a usage frequency determining unit and a security level managing unit. The usage frequency determining unit is configured to determine usage frequencies of respective time zones on the basis of an access log of users to this image forming apparatus. The security level managing unit is configured to determine security levels of the respective time zones on the basis of the usage frequencies, and automatically set the determined security level of each of the time zones when the time zone comes. Further, the security level managing unit sets the higher security level for the lower usage frequency.

Abstract: A power supply circuit of a step-down type, configured to generate an output voltage at a predetermined level from an alternating current (AC) voltage. The power supply circuit includes a rectifier circuit configured to rectify the AC voltage, a first line coupled to the rectifier circuit, a second line on a ground side, a switch coupled between the first line and the second line, and a control circuit configured to control the switch to bring a level of the output voltage to the predetermined level. The power supply circuit is free of an inductor interposed between the first line and the rectifier circuit.

Abstract: First and second current detection resistors connected in series are used as current detection resistors for detecting a main current of a switching element. A single-fault detection circuit divides a voltage detected from the main current by first to third resistors. A first comparator compares a voltage at a Detect terminal with a voltage at a connection point of the first and second resistors, and a second comparator compares the voltage at the Detect terminal with a voltage at a connection point of the second and third resistors. When either one of the first and second current detection resistors is short-circuited, the corresponding one of the first and second comparators outputs an L-level signal. Accordingly, an AND circuit outputs a signal indicating a single fault. Since this signal reduces a threshold voltage of the individual comparator by half, the same output voltage as before the fault is maintained.

Abstract: Provided is a two-shaft gas turbine power generation equipment that includes: an induction motor which receives/transmits power from/to a power system; and a speed reducer that makes a rotational speed of a motor rotor of the induction motor lower than a rotational speed of a compressor rotor of a two-shaft gas turbine. The speed reducer includes: a compressor-side shaft; a motor-side shaft; a first compressor-side helical gear and a second compressor-side helical gear which are mounted on the compressor-side shaft; and a first motor-side helical gear and a second motor-side helical gear which are mounted on the motor-side shaft. The first compressor-side helical gear meshes with the first motor-side helical gear, and the second compressor-side helical gear meshes with the second motor-side helical gear.

Abstract: A computer, which executes a color machine driver for outputting print data generated by an application program for generating the print data to a color image forming apparatus, accepts an interlocking setting, which is a setting for whether a color setting which is a setting for causing the color image forming apparatus to execute color printing or monochrome printing is interlocked with the application program. In case that the color setting is set not to be interlocked with the application program in the interlocking setting, when the color setting in the color machine driver is a color setting that causes the color image forming apparatus to execute the monochrome printing, the computer causes the application program to generate print data for the color image, and executes a monochrome image forming process for converting the color image into a monochrome image.

Abstract: First and second current detection resistors connected in series are used as current detection resistors for detecting a main current of a switching element. A single-fault detection circuit divides a voltage detected from the main current by first to third resistors. A first comparator compares a voltage at a Detect terminal with a voltage at a connection point of the first and second resistors, and a second comparator compares the voltage at the Detect terminal with a voltage at a connection point of the second and third resistors. When either one of the first and second current detection resistors is short-circuited, the corresponding one of the first and second comparators outputs an L-level signal. Accordingly, an AND circuit outputs a signal indicating a single fault. Since this signal reduces a threshold voltage of the individual comparator by half, the same output voltage as before the fault is maintained.

Abstract: A computer, which executes a color machine driver for outputting print data generated by an application program for generating the print data to a color image forming apparatus, accepts an interlocking setting, which is a setting for whether a color setting which is a setting for causing the color image forming apparatus to execute color printing or monochrome printing is interlocked with the application program. In case that the color setting is set not to be interlocked with the application program in the interlocking setting, when the color setting in the color machine driver is a color setting that causes the color image forming apparatus to execute the monochrome printing, the computer causes the application program to generate print data for the color image, and executes a monochrome image forming process for converting the color image into a monochrome image.

Abstract: A two-shaft gas turbine facility includes a two-shaft gas turbine, an induction motor connected to a compressor of the two-shaft gas turbine, a secondary battery, a first frequency converter that controls power transmission and reception between a power system and the induction motor, and a second frequency converter that controls charging and discharging of power between the secondary battery and the power system. A first control unit of a control device causes power transmission and reception to be performed between the induction motor and the power system by the first frequency converter if a required output change rate is higher than a maximum output change rate. A second control unit causes the secondary battery to be charged and discharged by the second frequency converter if power to be transmitted to and received from the induction motor has reached maximum allowable power.

Abstract: A two-shaft gas turbine facility includes a two-shaft gas turbine, an induction motor connected to a compressor of the two-shaft gas turbine, a secondary battery, a first frequency converter that controls power transmission and reception between a power system and the induction motor, and a second frequency converter that controls charging and discharging of power between the secondary battery and the power system. A first control unit of a control device causes power transmission and reception to be performed between the induction motor and the power system by the first frequency converter if a required output change rate is higher than a maximum output change rate. A second control unit causes the secondary battery to be charged and discharged by the second frequency converter if power to be transmitted to and received from the induction motor has reached maximum allowable power.

Abstract: Provided is a two-shaft gas turbine power generation equipment that includes: an induction motor which receives/transmits power from/to a power system; and a speed reducer that makes a rotational speed of a motor rotor of the induction motor lower than a rotational speed of a compressor rotor of a two-shaft gas turbine. The speed reducer includes: a compressor-side shaft; a motor-side shaft; a first compressor-side helical gear and a second compressor-side helical gear which are mounted on the compressor-side shaft; and a first motor-side helical gear and a second motor-side helical gear which are mounted on the motor-side shaft. The first compressor-side helical gear meshes with the first motor-side helical gear, and the second compressor-side helical gear meshes with the second motor-side helical gear.

Abstract: An image forming system includes an image forming apparatus and an information processing apparatus coupled to the network. The image forming apparatus stores, in a memory device, an information processing apparatus identifier that is assigned to a button of the image forming apparatus and transmits, to the information processing apparatus, press-down information of the button that includes the information processing apparatus identifier. The image forming apparatus additionally reads, if, in the information processing apparatus, it is determined the information processing apparatus identifier in the press-down information matches an information processing apparatus identifier stored within the information processing apparatus, a document image set in a scanner, in response to a scan execution request that is received from the information processing apparatus via the network.

Abstract: A non-transitory recording medium includes an installer program that causes a computer within an information processing device to function as a device list generation unit, a display control unit, and an installation processing unit. The device list generation unit generates a device list. The display control unit causes the device list to be displayed in a first display area; causes a driver list to be displayed in a second display area; causes the device selected from the device list to be displayed in a third display area; and causes the driver selected from the driver list to be displayed corresponding to the device displayed in the third display area. The installation processing unit installs, into the information processing device, the driver displayed corresponding to the device.

Abstract: An image forming system includes an image forming apparatus and an information processing apparatus coupled to the network. The image forming apparatus stores, in a memory device, an information processing apparatus identifier that is assigned to the button and transmits, to the information processing apparatus, press-down information that includes the information processing apparatus identifier corresponding to the button that is pressed-down, in response to a request for the press-down information that is received from the information processing apparatus via the network The image forming apparatus also prints, on a sheet, an image based on print job data that is received from the information processing apparatus via the network, if, in the information processing apparatus, it is determined that the information processing apparatus identifier in the press-down information matches with the information processing apparatus identifier of the information processing apparatus.

Abstract: A non-transitory recording medium includes an installer program that causes a computer within an information processing device to function as a device list generation unit, a display control unit, and an installation processing unit. The device list generation unit generates a device list. The display control unit causes the device list to be displayed in a first display area; causes a driver list to be displayed in a second display area; causes the device selected from the device list to be displayed in a third display area; and causes the driver selected from the driver list to be displayed corresponding to the device displayed in the third display area. The installation processing unit installs, into the information processing device, the driver displayed corresponding to the device.

Abstract: An image forming system includes an image forming apparatus and an information processing apparatus coupled to the network. The image forming apparatus stores, in a memory device, an information processing apparatus identifier that is assigned to the button and transmits, to the information processing apparatus, press-down information that includes the information processing apparatus identifier corresponding to the button that is pressed-down, in response to a request for the press-down information that is received from the information processing apparatus via the network The image forming apparatus also prints, on a sheet, an image based on print job data that is received from the information processing apparatus via the network, if, in the information processing apparatus, it is determined that the information processing apparatus identifier in the press-down information matches with the information processing apparatus identifier of the information processing apparatus.

Abstract: An image forming system includes an image forming apparatus and an information processing apparatus coupled to the network. The image forming apparatus stores, in a memory device, an information processing apparatus identifier that is assigned to a button of the image forming apparatus and transmits, to the information processing apparatus, press-down information of the button that includes the information processing apparatus identifier. The image forming apparatus additionally reads, if, in the information processing apparatus, it is determined the information processing apparatus identifier in the press-down information matches an information processing apparatus identifier stored within the information processing apparatus, a document image set in a scanner, in response to a scan execution request that is received from the information processing apparatus via the network.

Abstract: An electronic device comprising: a display unit configured to display a setting menu; an operation unit configured to receive an operation from a user; an operation detection unit configured to detects the operation received by the operation unit; a timer unit configured to measure an elapsed time that has elapsed since a start operation relating to a setting of a given function received by the operation unit is detected by the operation detection unit; and a help display processing unit configured to cause the display unit to display help information thereon when an end operation relating to the given function to the operation unit has not been detected by the operation detection unit before the elapsed time measured by the timer unit reaches a predetermined time.

Abstract: An authentication apparatus includes: a database section that stores a password; an entry section through which a password is entered; a storage section that stores an entered password which is entered through the entry section; an authentication section that authenticates whether the password and the entered password match with each other; and a determining section that determines whether or not a re-entered password is to be subjected to an authentication processing performed by the authentication section when the re-entered password is entered through the entry section after the authentication section determines that the password and the entered password do not match with each other.

Abstract: An image formation apparatus includes a receiving unit that is removably receiving a component, a determination unit that determines the acceptability of the component received in the receiving unit, and a control unit that, if the determination unit does not confirm the acceptability of the component, provides a notification and stops at least a portion of the image forming function at a predetermined time, after providing the notification.

Abstract: A gas turbine has a plurality of combustors in a toroidal arrangement to provide combustion gases to turbine blades, thereby rotating the turbine body. Thermocouples, the number of which is the same as or greater than the number of the combustors, are arranged toroidally at the outlets of the turbine blades and measure the temperatures of the combustion gases at the respective outlets. During the operation of the gas turbine, if an abnormality, such as misfire or fuel injection nozzle obstruction, occurs in one or more of the combustors, the resulting change in gas temperature triggers a signal to stop, and thereby protect the gas turbine. Based on the measured values of the blade pass temperatures of the thermocouples and set threshold temperatures, a fuel supply system may be caused to gradually decrease the fuel supplied to the combustors to bring the gas turbine body to an automatic stop, or it may be cut off instantaneously, thus immediately stopping the gas turbine.