Abstract: A sheet conveyor includes: a sheet conveyor; a supporter including a movable guide and having a first and second end portions in a widthwise direction; and a first cover adjacent to the first end portion. The supporter has an upstream edge in the conveying direction. A first-end upstream end portion of the upstream edge is nearer to the sheet conveyor than a second-end upstream end portion of the upstream edge. The first cover has a first region and a second region. The first region has a height greater than or equal to that of the guide and extends to a position located upstream of an upstream, end portion of the guide. The second region is located upstream of the first region, and the second region is less in height than the first region. The first-end upstream end portion overlaps the first region when viewed in the widthwise direction.

Abstract: A sheet conveyor includes: a sheet conveyor; a supporter including a movable guide and having a first and second end portions in a widthwise direction; and a first cover adjacent to the first end portion. The supporter has an upstream edge in the conveying direction. A first-end upstream end portion of the upstream edge is nearer to the sheet conveyor than a second-end upstream end portion of the upstream edge. The first cover has a first region and a second region. The first region has a height greater than or equal to that of the guide and extends to a position located upstream of an upstream, end portion of the guide. The second region is located upstream of the first region, and the second region is less in height than the first region. The first-end upstream end portion overlaps the first region when viewed in the widthwise direction.

Abstract: In a multilevel power conversion circuit, output harmonic waves and electromagnetic noise can be reduced as the number of output levels is increased. This, however, increases the number of elements constituting the circuit, causing the degree of difficulty in mounting to increase, cost to increase, and reliability to decrease. It is necessary to provide a circuit configuration, a design method, and a mounting method for obtaining, at low cost, a multilevel power conversion circuit using a large number of elements. A power conversion circuit is used as a unit module and is equipped with input and output terminals each mounted on the main circuit in an open state, wherein the input and output terminals have a mechanism by which the input and output terminals can be flexibly interconnected with the input and output terminals of another same module.

Abstract: [Solution] An actually used flying capacitor-type multilevel power conversion circuit has variations in the characteristics of main semiconductor switches, and includes parasitic elements such as parasitic resistance, parasitic capacity, and parasitic inductance in the circuit, which causes flying capacitors to be charged and discharged to different quantities contrary to ideal case, making it necessary to have voltage sensors for flying capacitor voltage detection and a main semiconductor switch control mechanism in order to suppress fluctuation of the flying capacitor voltages from prescribed values. Furthermore, this circuit becomes unpractical when the number of levels is increased.

Abstract: The disclosure generally relates to a cover portion of an image reader or other multifunctional peripheral. The cover portion may move between an uncovering position and a covering position by pivoting about a first axis. The cover portion may include a movable member that moves between an open position where the movable member functions as a document tray and a closed position where the movable member constitutes a part of an upper surface of the cover portion. The cover portion may also include a conveyor configured to convey one or more documents placed on the movable member when it is in the open position. Further, the cover portion may include an operation portion configured to receive user inputs. Moreover, the operation portion may be positioned near a center of the cover portion.

Abstract: The disclosure generally relates to a cover portion of an image reader or other multifunctional peripheral. The cover portion may move between an uncovering position and a covering position by pivoting about a first axis. The cover portion may include a movable member that moves between an open position where the movable member functions as a document tray and a closed position where the movable member constitutes a part of an upper surface of the cover portion. The cover portion may also include a conveyor configured to convey one or more documents placed on the movable member when it is in the open position. Further, the cover portion may include an operation portion configured to receive user inputs. Moreover, the operation portion may be positioned near a center of the cover portion.