Abstract: A flexible film-like member having conductive metals filled in tapered holes extending through the thickness is positioned such that the holes of the member face to respective pad patterns on a circuit board on which bumps are to be formed, the conductive metals are then heated and fused so that they are joined and transferred to the pad patterns on the circuit board, and the film-like member is then removed by heating or cleaning liquid.

Abstract: An image forming apparatus having a developing unit for developing an electrostatic latent image on a photosensitive drum with a one-component toner, consisting of an endless latent image carrier; an image forming unit for forming an electrostatic latent image on the image carrier; a developing unit, for causing the developing roller to contact the image carrier to develop the electrostatic latent image on the image carrier; a mechanism for driving the developing unit; a toner sensor for detecting the presence/absence of the toner in the developing unit; and an abutting/detaching mechanism for abutting or detaching the developing roller of the developing unit on or from the image carrier.

Abstract: A depositing apparatus includes a profile-following mechanism having a translational displacement mechanism portion and a rotation mechanism portion adapted to allow a head to be swung in the directions of both X and the Y axes so that the head follows a profile of the surface of workpiece smoothly around a first contact point, thereof with the workpiece, serving as a fulcrum point.

Abstract: Disclosed are a brush charger for preventing a rotary conductive brush, which contacts a latent image carrier to charge it, from bending along the rotary shaft of the conductive brush, and an image forming apparatus using this brush charger. The brush charger comprises a conductive rotary shaft; a conductive brush provided around the conductive rotary shaft in such a way that the tip of the conductive brush contacts the latent image carrier; a voltage source for applying a charging voltage to the conductive rotary shaft; elastic insulating members provided at both ends of the conductive rotary shaft, for restricting end portions of the conductive brush from spreading along the conductive rotary shaft; and stationary members respectively provided at one ends of the elastic insulating members, for compressing the elastic insulating members toward the conductive brush.

Abstract: There is disclosed a process cartridge exchangeably provided to an image forming apparatus provided with an endless light-sensitive carrier, a mechanism for charging the light-sensitive carrier, a cleaner for cleaning residual toner on the light-sensitive carrier, a cartridge frame installed with at least the light-sensitive carrier, the charging mechanism and the cleaner, the cartridge frame having a fulcrum hole, and wherein a developing unit is detachably provided to the cartridge frame for developing an electrostatic image on the light-sensitive carrier, the developing unit including a developing unit frame having a free fit hole and connection rod freely fitted into the fulcrum hole and as well freely fitted to the free fit hole of the developing unit frame for installing the developing unit to the cartridge frame such that the developing unit is rotatably movable with respect to the cartridge frame.

Abstract: An image formation apparatus having at least one guide roller (23) for guiding a medium (100) on which an image is to be formed, and a detachable process cartridge (11) having a photoconductive drum (13) incorporated therein, and further comprising at least one pinch roller (21) provided in the process cartridge (11) to come into elastic contact with a corresponding guide roller (23).