Abstract: A semiconductor device includes: a clock synchronizing circuit that operates in synchronization with a clock; an enable signal generating circuit that generates an enable signal in an operation period during which the clock synchronizing circuit is operated; and a clock supplying circuit that supplies a clock to the clock synchronizing circuit or stop the supply of the clock according to the enable signal when a clock frequency is equal to or lower than a predetermined frequency, and supply a clock to the clock synchronizing circuit, irrespective of the enable signal, when the clock frequency is higher than the predetermined frequency.

Abstract: A semiconductor device includes: a clock synchronizing circuit that operates in synchronization with a clock; an enable signal generating circuit that generates an enable signal in an operation period during which the clock synchronizing circuit is operated; and a clock supplying circuit that supplies a clock to the clock synchronizing circuit or stop the supply of the clock according to the enable signal when a clock frequency is equal to or lower than a predetermined frequency, and supply a clock to the clock synchronizing circuit, irrespective of the enable signal, when the clock frequency is higher than the predetermined frequency.

Abstract: An image forming apparatus such as a printer and a copier has rotating devices such as a drum and a press roller to print an image on a paper sheet while rotating and a paper-transporting mechanism having guide rollers and timing rollers for transporting a paper sheet to these rotary devices, controlled by a control device such that irregularities in the printed images due to fluctuations in the speed of transportation of the paper sheets. The guide rollers may be operated to transport the paper sheet at a faster speed than the paper sheet is transported by the rotary devices such that the paper sheet becomes bent before being delivered to the rotary devices to be printed on. The control may be such that the guide rollers transport the paper sheet while the timing rollers downstream is released from the transportation of paper sheets. The control device may also operate so as to stop the guide rollers when the paper sheet comes to a position where the rotary devices can start transporting it.

Abstract: An image forming apparatus such as a printer and a copier has rotating devices such as a drum and a press roller to print an image on a paper sheet while rotating and a paper-transporting mechanism having guide rollers and timing rollers for transporting a paper sheet to these rotary devices, controlled by a control device such that irregularities in the printed images due to fluctuations in the speed of transportation of the paper sheets. The guide rollers may be operated to transport the paper sheet at a faster speed than the paper sheet is transported by the rotary devices such that the paper sheet becomes bent before being delivered to the rotary devices to be printed on. The control may be such that the guide rollers transport the paper sheet while the timing rollers downstream is released from the transportation of paper sheets. The control device may also operate so as to stop the guide rollers when the paper sheet comes to a position where the rotary devices can start transporting it.

Abstract: An image processor has a light source lamp for illuminating an original when scanning the original. The lamp can be attached to and detached from lamp brackets, and the lamp brackets can be attached to and detached from a carriage which is moved for the scanning operation, whereby the light source lamp can be attached to and detached from the carriage without having to disconnect the carriage from wires.

Abstract: A discharged paper receiver unit for receiving papers discharged from an image recording apparatus has a bottom plate on which papers discharged from the image recording apparatus are stacked and which is positioned with its one end held lower than the other at least when the discharged paper receiver unit is set in its operative position. A stopper member has a cushioning portion positioned so that the leading end of each paper as discharged from the image recording apparatus directly impacts against the cushioning portion and the paper falls onto the bottom plate.

Abstract: A sheet feeding machine includes a sheet feeding table which is vertically movable and capable of supporting a plurality of first recording sheets thereon, first sheet feeding device movably situated above the sheet feeding table, the first sheet feeding device feeding the first recording sheets successively from a topmost sheet as the sheet feeding table with the first recording sheets moves upward, a base body detachably attached to the sheet feeding table, the base body supporting a plurality of second recording sheets thereon, and second sheet feeding device situated on the base body and feeding the second recording sheets successively from a bottommost sheet so that when the base body is attached to the sheet feeding table, the second recording sheet is fed by the second sheet feeding device and is transferred further by the first feeding device as a conveying device.

Abstract: A carriage securing structure for an image processor, including a stop which is linked by a captive coupling to a bottom plate of a casing so that it does not come off the bottom plate and an engagement member provided in a carriage. The carriage is secured by the stop engaging the engagement member. With the engagement being released, a through hole through which the stop is inserted encloses the hole in the bottom plate and does not degrade the appearance of the apparatus, and dust, or the like, is prevented from entering the casing through the hole.

Abstract: A system for designing an IC (semiconductor integrated circuit) including an extracting unit for extracting element data for forming unit cells from design data of an IC to be designed, a framing unit for framing pattern data indicative of the size of each unit cell on the basis of the element data from the extracting unit and design standard data with which the layout rules are prescribed, a calculating unit for calculating the whole area of the IC on the basis of the pattern data from the framing means, and an arranging unit for arranging the unit cells within a layout range predicted by the area data from a predicting unit on the basis of the pattern data.