Abstract: A battery monitoring device includes: a pair of terminals for measuring voltage or current of a battery, and to which a filter unit including a capacitive element is connected; an AD converter that measures a waveform of voltage between the terminals during charging or discharging of the capacitive element; and a time constant calculation unit that calculates a time constant of the filter unit based on the waveform measured. The AD converter is, for example, a first AD converter or a second AD converter. The filter unit is, for example, a first filter unit or a second filter unit.

Abstract: A printer includes: a housing; a paper delivery table on which paper sheets delivered from an inside of the housing are stacked; a suction fan that sucks a gas that cools down the inside of the housing from an outside of the housing; and a first suction port that is a suction port through which a gas is sucked from the outside of the housing by the suction fan and through which a gas below a paper sheet that is delivered from the inside of the housing is sucked.

Abstract: A printer includes: a housing; a paper delivery table on which paper sheets delivered from an inside of the housing are stacked; a suction fan that sucks a gas that cools down the inside of the housing from an outside of the housing; and a first suction port that is a suction port through which a gas is sucked from the outside of the housing by the suction fan and through which a gas below a paper sheet that is delivered from the inside of the housing is sucked.

Abstract: A wafer exchange apparatus is provided that is compact with excellent accessibility. The wafer exchange apparatus of the present invention includes a first and a second hands (10), (20), a first lifting means (30), a casing (40), a horizontal moving means (50) and a second lifting means (60). The first and the second hands (10), (20) are formed in shapes segmented in the left and right direction with generally line symmetry, and support a wafer (100). The first lifting means (30) moves the second hand (20) upward and downward. The casing (40) has the first lifting means (30) built-in, and supports the first hand (10) at a constant position in height while supporting the second hand (20) movably upward and downward. The horizontal moving means (50) moves the casing (40) horizontally. The second lifting means (60) moves the casing (40) upward and downward.

Abstract: A motor control system includes a processor having a clock output terminal for outputting clock pulses in desired cycles, a plurality of motors, and a plurality of motor drivers which are provided one for each motor and drive the corresponding motors on the basis of the clock pulses input into the motor drivers through their respective clock input terminals. The clock input terminals of the motor drivers are connected to the clock output terminal of the processor in common with each other.