Abstract: A printer includes a data obtaining unit, a storage unit, an engine, and a printing unit. The data obtaining unit obtains, from print data stored in the storage unit, print data for sheets less than the maximum number of sheets dischargeable to a discharge tray as target print data and sends the target print data to the engine via the printing unit. The target print data includes first print data of odd pages and second print data of even pages. After printing the first print data on one side of sheets fed from a feed tray and discharges the sheets onto the discharge tray, the engine prints the second print data on the other side of the sheets manually returned from the discharge tray to the feed tray.

Abstract: A printer includes a data obtaining unit, a storage unit, an engine, and a printing unit. The data obtaining unit obtains, from print data stored in the storage unit, print data for sheets less than the maximum number of sheets dischargeable to a discharge tray as target print data and sends the target print data to the engine via the printing unit. The target print data includes first print data of odd pages and second print data of even pages. After printing the first print data on one side of sheets fed from a feed tray and discharges the sheets onto the discharge tray, the engine prints the second print data on the other side of the sheets manually returned from the discharge tray to the feed tray.

Abstract: A probe card is used to test an electronic device. The probe card includes a base plate and a cantilever-type probe arranged on the base plate. The cantilever-type probe has an end that contacts the contacted body and moves when contacting the contacted body. A stopper arranged on the base plate restricts the movement of the cantilever-type probe.

Abstract: A semiconductor memory device includes a self-testing circuit and a self-redundancy circuit with simple structures. The self-testing circuit includes a comparison circuit which compares write data with read data with respect to normal memory blocks and redundant memory blocks, and a decision circuit which decides if the semiconductor memory device is good or defective based on the plurality of comparison result signals. A signal transfer and holding circuit is connected between the comparison circuit and the decision circuit to transfer the plurality of comparison result signals to the decision circuit and to supply the plurality of comparison result signals to the self-redundancy circuit as a test result.

Abstract: A probe card is commonly used for a plurality of kinds of semiconductor chips. The probe card has a probe card substrate and a multi-layer structure interconnection substrate connected to the probe card substrate. A plurality of probe needles extend from the multi-layer structure interconnection substrate. At least one power supply plane is provided between the multi-layer structure interconnection substrate and extreme ends of the probe needles. The power supply plane is configured and arranged to be exchangeable with a different plane.

Abstract: A semiconductor memory device includes a self-testing circuit and a self-redundancy circuit with simple structures. The self-testing circuit includes a comparison circuit which compares write data with read data with respect to normal memory blocks and redundant memory blocks, and a decision circuit which decides if the semiconductor memory device is good or defective based on the plurality of comparison result signals. A signal transfer and holding circuit is connected between the comparison circuit and the decision circuit to transfer the plurality of comparison result signals to the decision circuit and to supply the plurality of comparison result signals to the self-redundancy circuit as a test result.

Abstract: An inexpensive probing card that has probe pins for contacting pads with high reliability. The probe pins are arranged on a base plate. The probe pins move along the pads when contacting the pads. A stopper restricts the movement of the probe pins.

Abstract: An inexpensive probing card that has probe pins for contacting pads with high reliability. The probe pins are arranged on a base plate. The probe pins move along the pads when contacting the pads. A stopper restricts the movement of the probe pins.

Abstract: In an air flow control device for an air conditioner including a heat exchanger arranged so as to face an inlet port, and upper and lower air-blowing fans disposed in upper and lower outlet ports, respectively, wherein air sucked through the inlet port and the heat exchanger is directed to the fans, there are further provided input producing means for outputting a condition required for the outlet air from the outlet ports and phenomenon information on the outlet air, upper and lower fan operation mode determining means for determining the operation modes depending on the output signals from the input producing means, upper and lower fan operation mode control means for controlling the operation of both fans at the operation mode according to the commands from the operation mode determining means, and control means for optimizing the outlet air to a user.

Abstract: An air flow control device for an air conditioner increases the revolution of a fan motor to the revolution wherein the short cycle does not occur, or change the direction of an air directing plate to a preset angle wherein the short cycle does not occur when information corresponding to the short cycle is detected based on the air flowing direction from the outlet port or an intake air temperature. As a result, the short cycle can be prevented, and effective heat exchanger and effective air conditioning wherein temperature distribution in a room to be air-conditioned is not deteriotated are obtained.

Abstract: An air flow control device for an air conditioner includes a compressor, an outdoor side heat exchanger, expansion means and a room side heat exchanger in sequence, wherein the improvement comprises a room side unit with a upper and lower outlet ports, having the room side heat exchanger therein, upper and lower air-blowing fans disposed in the room side unit so as to face the upper and lower outlet ports, respectively, controller for controlling the operations of the air-blowing fans, a covering member positioned at least one of the outlet ports so as to open and close the corresponding outlet port, and a driving device for controlling the opening and closing operations of the covering member.