Abstract: A lens barrel device includes a lens mounted in a lens frame that is threaded into an annular adjusting ring. The adjusting ring is coupled using a bayonet to a lens barrel. The lens barrel includes first and second flanges on the inner periphery of the lens barrel that define grooves for receiving bayonet projections on the annular adjusting ring. The bayonet coupling structure of the annular adjusting ring includes semispherical projections for elastically engaging inner walls of the grooves and also includes a rotation regulating stopper for engaging an end wall of an opening in one of the inner flanges so as to regulate rotation of the annular adjusting ring, and hence the lens, relative to the lens barrel. The end wall includes a groove for receiving a jig that can release the bayonet coupling structure of the annular adjusting ring from the lens barrel.

Abstract: A lens device for mounting a flexible printed circuit board in a lens barrel and method of assembling the flexible printed circuit board in the lens barrel of the lens device is disclosed. The lens device includes a through-channel on a portion of the lens barrel. The through-channel includes first and second tiers formed by a first partition and a second partition that is perpendicular to the first partition which divides the second tier into separate through-channels. The flexible printed circuit board is assembled in the lens device by inserting the flexible printed circuit board into the first tier from one end of said through-channel, folding the flexible printed circuit board at the other end of the through-channel into a folded part, and inserting the folded part of the flexible printed circuit board into one of the separate through-channels of the second tier from the other end of the through-channel.

Abstract: The present invention discloses an image processor, in which an inverter for driving a fluorescent lamp is disposed in separation into parts at both ends of a carriage mounting the fluorescent lamp thereon in a direction perpendicular to a scanning direction of the carriage, so as to shorten a harness between the fluorescent lamp and the inverter and dispense with a part projecting in the scanning direction of the carriage, thereby achieving miniaturization. Inverters for driving a fluorescent lamp are disposed in appropriate separation at both ends of a full-rate carriage mounting the fluorescent lamp thereon in a scanning direction of the full-rate carriage and does not project in the scanning direction of the full-rate carriage. Thus, it is unnecessary to provide space in a casing for accommodating a projecting inverter in the case at a scanning ending end, thereby allowing miniaturizing the casing.

Abstract: A lens barrel device includes a lens mounted in a lens frame that is threaded into an annular adjusting ring. The adjusting ring is coupled using a bayonet to a lens barrel. The lens barrel includes first and second flanges on the inner periphery of the lens barrel that define grooves for receiving bayonet projections on the annular adjusting ring. The bayonet coupling structure of the annular adjusting ring includes semispherical projections for elastically engaging inner walls of the grooves and also includes a rotation regulating stopper for engaging an end wall of an opening in one of the inner flanges so as to regulate rotation of the annular adjusting ring, and hence the lens, relative to the lens barrel. The end wall includes a groove for receiving a jig that can release the bayonet coupling structure of the annular adjusting ring from the lens barrel.

Abstract: A lens device for mounting a flexible printed circuit board in a lens barrel and method of assembling the flexible printed circuit board in the lens barrel of the lens device is disclosed. The lens device includes a through-channel on a portion of the lens barrel. The through-channel includes first and second tiers formed by a first partition and a second partition that is perpendicular to the first partition which divides the second tier into separate through-channels. The flexible printed circuit board is assembled in the lens device by inserting the flexible printed circuit board into the first tier from one end of said through-channel, folding the flexible printed circuit board at the other end of the through-channel into a folded part, and inserting the folded part of the flexible printed circuit board into one of the separate through-channels of the second tier from the other end of the through-channel.

Abstract: A support structure for supporting reflectors on a half rate carriage in an image reader has an angle between a reflecting surface of a second reflector and an optical path from a first reflector of a full rate carriage to the second reflector is greater than 45° and less than 90°, for example about 53°, and an angle between the reflecting surface of the second reflector and a reflector of a third reflector is 90°. Thus, the degree of overlaying of the full rate carriage with the half rate carriage is increased and the image reader is miniaturized.

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: An image processor includes an inertia weight for a rotary shaft, which can be added or replaced without removing the rotary shaft from its supporting section by arranging the inertia weight mounted on the rotary shaft so as to stabilize the rotation of the rotary shaft. The vertical weight is formed by splitting a member having an almost cylindrical shape along a plane including the longitudinal axis. A through-hole and a female threaded aperture are formed in joining faces of the split member. The pair of the weight parts can be added and detached from the driving shaft by a securing screw extended into the through-hole and threaded aperture.