Abstract: An image forming apparatus is provided that forms an image on a sheet material based on a sheet material setting relating to the sheet material. The image forming apparatus includes an accepting unit configured to accept a selection of a sheet material type, a thickness measurement unit configured to measure a thickness of the sheet material, and a setting determination unit configured to determine the sheet material setting that relates to the thickness of the sheet material based on the sheet material type accepted by the accepting unit and the thickness of the sheet material measured by the thickness measurement unit.

Abstract: The present invention provides: an aluminum alloy substrate for magnetic discs with excellent plating surface smoothness; a manufacturing method therefor; and a magnetic disc using said aluminum alloy substrate for magnetic discs. The present invention is an aluminum alloy substrate for magnetic discs, a manufacturing method therefor, and a magnetic disc using said aluminum alloy substrate for magnetic discs, the aluminum alloy substrate being characterized in being obtained from an aluminum alloy containing Mg: 2.0-8.0 mass % (“%” below), Be: 0.00001-0.00200%, Cu: 0.003-0.150%, Zn: 0.05-0.60%, Cr: 0.010-0.300%, Si: 0.060% or less, Fe: 0.060% or less, the balance being obtained from Al and unavoidable impurities.

Abstract: A motor control device for driving a motor, the motor control device includes: a receiver configured to receive, from an external source, a drive command containing a rotation direction command designating a rotation direction of the motor; a storage part configured to store the rotation direction of the motor indicated by the rotation direction command when the motor is driven using the rotation direction command; and a controller configured to, when a new piece of the drive command is received from the external source, control rotation reversing of the motor based on a rotation direction of the motor indicated by the rotation direction command contained in the received piece of the drive command and the rotation direction of the motor stored in the storage part.

Abstract: A highly corrosion resistant and highly formable aluminum-alloy clad material, a method for producing the same, a heat exchanger using the same and a method for producing the same are shown. The present aluminum-alloy clad material has an aluminum alloy core material, an intermediate layer material clad on one surface of the core material and a brazing filler metal clad on the surface of the intermediate layer material that is not on the core material side, wherein a crystal grain size of the intermediate layer material before brazing heating is 60 ?m or more, and in a cross section of the core material in a rolling direction before brazing heating, when R1 (?m) represents the crystal grain size in a plate thickness direction, and R2 (?m) represents the crystal grain size in the rolling direction, R1/R2 is 0.30 or less.

Abstract: A motor control device includes a detecting unit configured to detect rotation of a motor to be controlled and output a rotation detection value related to the rotation; a drive control unit configured to perform drive control to rotate the motor at a control target value increasing with time based on the rotation detection value; and an abnormality detection unit configured to perform an abnormality detection process for detecting an abnormality in the drive control based on the rotation detection value and a predetermined threshold. The drive control unit performs control to stop rotation of the motor when the abnormality is detected.

Abstract: A motor control device includes: an electric-current detection unit configured to detect an electric current that flows through a motor at a time when the motor is not to be driven; a voltage-polarity determining unit configured to determine polarity of a voltage corresponding to the detected electric current; and an operating-state management unit configured to perform control of stopping the motor depending on the polarity of the voltage.

Abstract: A contact-and-separation system includes a first roller, a second roller, and a contact-and-separation device. The first roller contacts a belt. The second roller is opposed to the first roller. The contact-and-separation device contacts or separates the belt to or from the second roller via a sheet conveyed. The contact-and-separation device includes an eccentric cam, a motor, and a circuitry. The eccentric cam is mounted on an end of a rotation shaft of the first roller. The motor rotates the eccentric cam. The circuitry controls the motor to rotate the eccentric cam to contact or separate the belt to or from the second roller via the sheet conveyed. The circuitry controls the motor to decelerate a rotation speed of the motor on contact or separation of the belt to or from the second roller between the first roller and the second roller.

Abstract: An image forming apparatus is provided that forms an image on a sheet material based on a sheet material setting relating to the sheet material. The image forming apparatus includes an accepting unit configured to accept a selection of a sheet material type, a thickness measurement unit configured to measure a thickness of the sheet material, and a setting determination unit configured to determine the sheet material setting that relates to the thickness of the sheet material based on the sheet material type accepted by the accepting unit and the thickness of the sheet material measured by the thickness measurement unit.

Abstract: A control device includes a motor driving unit that supplies electric power to a motor according to a magnetic-pole-phase signal output from the motor; and a rotational-position detecting unit that converts the magnetic-pole-phase signal into a rotational-position detection signal and outputs the rotational-position detection signal. The rotational-position detection signal indicates a rotation amount and a rotation direction of an output shaft of the motor and has a higher resolution than the magnetic-pole-phase signal.

Abstract: A current detecting device includes: a drive signal generating unit configured to generate a control signal based on a control voltage value indicating drive force to be applied to a target; a current detecting unit configured to detect a current value output based on the control signal generated by the drive signal generating unit; and a correction unit configured to correct the current value detected by the current detecting unit, based on at least a magnitude of the control voltage value.

Abstract: A motor control device includes a controller and a detector. The controller is configured to control, when receiving an operation request indicating rotation or stop of a motor, rotation of the motor based on the operation request. The detector is configured to detect whether the motor is rotating. The controller stops the motor when the detector detects rotation of the motor after an elapsed time from reception of the operation request indicating stop of the motor reaches a first threshold.

Abstract: A motor control device for driving a motor, the motor control device includes: a receiver configured to receive, from an external source, a drive command containing a rotation direction command designating a rotation direction of the motor; a storage part configured to store the rotation direction of the motor indicated by the rotation direction command when the motor is driven using the rotation direction command; and a controller configured to, when a new piece of the drive command is received from the external source, control rotation reversing of the motor based on a rotation direction of the motor indicated by the rotation direction command contained in the received piece of the drive command and the rotation direction of the motor stored in the storage part.

Abstract: A motor controller receiving as input an encoder signal changing in response to a driving position of a motor, outputting a motor driving command in response to the encoder signal to control at least one of the driving position or a driving velocity of the motor, includes an interrupt processing section to execute interrupt operations every prescribed interrupt cycle, a low-frequency processing section to selectively execute a subset of the interrupt operations every prescribed number of the interrupt cycles, and a high-frequency processing section to execute another subset of the interrupt operations every prescribed interrupt cycle, wherein the high-frequency processing section executes at least an operation to detect the driving position indicated by the encoder signal, wherein the low-frequency processing section executes at least an operation to generate the motor driving command.

Abstract: A motor control device includes a detecting unit configured to detect rotation of a motor to be controlled and output a rotation detection value related to the rotation; a drive control unit configured to perform drive control to rotate the motor at a control target value increasing with time based on the rotation detection value; and an abnormality detection unit configured to perform an abnormality detection process for detecting an abnormality in the drive control based on the rotation detection value and a predetermined threshold. The drive control unit performs control to stop rotation of the motor when the abnormality is detected.

Abstract: A motor control device includes: an electric-current detection unit configured to detect an electric current that flows through a motor at a time when the motor is not to he driven; a voltage-polarity determining unit configured to determine polarity of a voltage corresponding to the detected electric current; and an operating-state management unit configured to perform control of stopping the motor depending on the polarity of the voltage.

Abstract: A motor control device includes a controller configured to output a control signal to a motor driver, the control signal instructing the motor driver to cut off energization of a motor when the control signal and a signal changing depending on driving the motor do not change for a first time period, determine whether the motor is in a position hold state in which control for holding the motor at a position is executed, and change the control signal in a second time period shorter than the first time period when the motor is in the position hold state.

Abstract: A highly corrosion resistant and highly formable aluminum-alloy clad material, a method for producing the same, a heat exchanger using the same and a method for producing the same are shown. The present aluminum-alloy clad material has an aluminum alloy core material, an intermediate layer material clad on one surface of the core material and a brazing filler metal clad on the surface of the intermediate layer material that is not on the core material side, wherein a crystal grain size of the intermediate layer material before brazing heating is 60 ?m or more, and in a cross section of the core material in a rolling direction before brazing heating, when R1 (?m) represents the crystal grain size in a plate thickness direction, and R2 (?m) represents the crystal grain size in the rolling direction, R1/R2 is 0.30 or less.

Abstract: A motor control device includes a detecting unit configured to detect rotation of a motor to be controlled and output a rotation detection value related to the rotation; a drive control unit configured to perform drive control to rotate the motor at a control target value increasing with time based on the rotation detection value; and an abnormality detection unit configured to perform an abnormality detection process for detecting an abnormality in the drive control based on the rotation detection value and a predetermined threshold. The drive control unit performs control to stop rotation of the motor when the abnormality is detected.

Abstract: A motor control device includes: a unit configured to generate a target rotation position information of a first driving motor based on target rotation position signals indicating a target rotation position of a second driving motor being replaced with the first driving motor; a unit configured to generate a speed predicting of the first driving motor; a unit configured to detect a rotation position of the first driving motor; a unit configured to generate an actual position information of the first driving motor; a unit configured to generate an actual speed of the first driving motor; a unit configured to correct an error between the target rotation position and the actual rotation position of the first driving motor; a unit configured to generate a speed error signal; a unit configured to generate a speed control signals of the first driving motor; and a unit configured to output a drive voltage.

Abstract: A drive control apparatus includes a controller which controls a drive unit based on a voltage instruction signal obtained from a target signal and an abnormality detection unit which obtains the voltage instruction signal M times in a detection time period. The abnormality detection unit detects occurrence of an abnormality in response to detecting that the voltage instruction signal is outside predetermined range N times in the detection time period, where M is equal to or more than 2 and N is equal to or more than 1 and N is less than M.