Abstract: An image forming apparatus includes: an image carrying member; a charging device; an exposure device; a developing device; a drive unit; a developing-voltage power supply; and a control unit. The developing device has a developer carrying member which is configured to carry a two-component developer containing a toner and a carrier. The developing-voltage power supply is configured to apply a developing voltage to the developer carrying member, the developing voltage being generated by superimposition of an AC voltage onto a DC voltage. The image forming apparatus has a first print mode in which an image carrying member is driven and rotated by a drive unit at a linear speed of 250 [mm/sec] or more. The image carrying member has a single organic-photosensitive layer as a photosensitive layer. The photosensitive layer has a layer thickness of 40 [?m] or more at start of use.

Abstract: Disclosed are a CPC gene coding for the amino acid sequence of SEQ ID NO:1 or an amino acid sequence substantially identical with the amino acid sequence of SEQ ID NO:1 and plants having said gene introduced into them. Novel plants with an increased number of root hairs can be obtained by use of said gene.

Abstract: A projection type image display device utilizing an oil film is disclosed, which device comprises a filter having frequency characteristics enabling reduction of the spatial frequency response in the vertical direction for an input signal having a stepwise waveform in the vertical direction to a value under those obtained by using the following formula with respect to the coordinate x of the position of the scanning line in the vertical direction;f(x)=[1+sin (.pi..multidot.x/D.sub.O)]/2where D.sub.O represents the smallest scanning line interval, outside of which adjacent scanning lines have no influences thereon, and filtering the input image signal according to those characteristics.