Abstract: An electrophotographic photoconductor composed of an electroconductive substrate, and a photoconductive layer consisting of a charge generation layer and a charge transport layer successively formed on the substrate in this order, the charge transport layer containing a carbon-carbon double-bond-containing charge transporting material, and a carbon-carbon double-bond-containing monomer or polymer, which serves as a binder resin, and readily reacts with the above-mentioned charge transporting material by the application of light or heat thereto.

Abstract: An electrophotographic image formation method using an electrophotographic photoconductor composed of an electroconductive support, and a photoconductive layer including a charge generation layer and a charge transport layer which are successively overlaid on the support, having the steps of charging the surface of the electrophotographic photoconductor uniformly to a predetermined polarity, exposing the charged surface of the photoconductor to light images to form electrostatic latent images thereon, developing the electrostatic latent images to visible toner images by a developer, transferring the toner images to an image-receiving medium, and cleaning the surface of the photoconductor, with the concentration of ozone in the ambient atmosphere around the photoconductor being controlled in the range from 5 to 50 ppm, and the abrasion of the photoconductive layer being controlled to 300 .ANG. or less per 1000 revolutions of the photoconductor.

Abstract: A connector pin inserter feeds and separates continuous, integrally formed connector pins from a belt-like carrier, and presses and thereby inserts the separated connector pins into through holes of a printed circuit board. The type of printed circuit board is detected and press-inserting conditions are determined for controlling the pin inserting operation, based on data relating to the board thickness, press-inserting position, pin size, and insertion pitch, corresponding to the detected type of printed circuit board, and provided to a press-inserting mechanism. Moving conditions are supplied to an X-Y positioning table which sets the position of the printed circuit board relative to the press-inserting mechanism for pressing the connector pins into the appropriate through holes of the printed circuit board in a sequence of program-controlled operations.