Abstract: A toning system for an electrostatic copying machine capable of developing a latent charge image carried therepast on an electrophotographic member moved through an endless path including an arcuate section. A rotary magnetic brush is journalled for rotation on an axis parallel to the arcuate section. A toner layer is applied to at least a portion of the circumference of the brush and brought into engagement with the electrophotographic member at the arcuate section. A hopper carries a quantity of toner and a cylindrical formation is connected to the bottom of a hopper carrying a quantity of toner and spaced from and encompasses all but a segment of the volume occupied by said brush. The hopper has a wall which provides a bottom edge spaced from the surface of said brush to form a metering blade adjacent said segment.

Abstract: In an electrostatic copier, a patterned original is moved along the top wall thereof in synchronism with the movement of a flexible electrophotographic looped member. A single electric motor functions to move the electrophotographic member in a predetermined direction past the functional stations of the copier.The patterned member is moved by a pair of rollers arranged to define a nip, one of the rollers being driven by the electric motor. Power is applied to the electric motor to start rotation of the rollers and movement of the electrophotographic member simultaneously, the rollers arranged to enable a patterned member to be pressed into said nip while the motor is not energized and neither the electrophotographic member nor the one of the said rollers is rotating, at which time the electric motor can be energized manually causing synchronized movement of the patterned member and the electrophotographic member.

Abstract: An imaging system for an electrostatic copier which includes a housing having a top wall, a base, a front wall, a rear end wall and opposite side walls, the side walls including inner support plates; the imaging system having a flexible electrophotographic belt; rollers supporting the belt in a generally horizontally extending elongate tensioned oval loop; an electric motor supported on one of the inner support plates; the motor and one roller being coupled for rotating the roller to move the loop in a predetermined forward direction past a series of functional stations the belt and rollers mounted on a framework between inner support plates within the housing the coupling between the one roller and the motor being separable the belt, the inner support plate having a passageway for the belt assembly and the outer side panel being swingable away from the adjacent support plate to enable removal of the belt assembly through the passageway; and, belt assembly being remountable by reversing the removal procedure.

Abstract: A projection and illuminating system for an electrostatic copier machine which includes an endless electrophotographic belt mounted for driven rotation in a generally oval path past plural functional stations for reproducing a pattern from a pattern carrying original. The pattern is illuminated and projected to a transparent platen as the original moves over the platen. At least one lamp is arranged below the platen, the lamp including a window and the axial aspect of the lamp is varied to vary the illumination. A rectangular cross-section lens is disposed aligned with the center of the platen. The lamp can be rotated in its socket. One of the lamp and socket therefor can be rotated to change the position of its window, hence vary the illumination reaching the belt to only that light reflected from the platen bottom and which passes through the lens.

Abstract: Electrophotographic plain paper copier apparatus of a highly compact nature in which the copier is modular in construction and has a removable magazine to hold the paper supply in an arcuate disposition. A substantial number of the components and parts of components of the copier are located within the general quadrant subtended by the magazine thereby shortening the overall length of the copier. The copier features a removable master belt support, a compact projection system, the magazine mechanism and means to couple the same into the operating system of the copier and a novel illumination adjusting means.

Abstract: A compact, table top plain paper copy machine has a teardrop shaped photoreceptor belt. A reciprocating carriage scan exposes an original document to the photoreceptor through an optical system having a Z-shaped optical path. The optical system and a number of other processing stations are located directly underneath the carriage thereby contributing to the overall compactness of the machine. A pair of pressure fusing rollers fix a dry toned image to a plain paper copy sheet, so that no energy is required to maintain the machine in a warm-up or stand-by mode of operation.

Abstract: A compact, table top plain paper copy machine has a teardrop shaped photoreceptor belt. A reciprocating carriage scan exposes an original document to the photoreceptor through an optical system having a Z-shaped optical path. The optical system and a number of other processing stations are located directly underneath the carriage thereby contributing to the overall compactness of the machine. A pair of pressure fusing rollers fix a dry toned image to a plain paper copy sheet, so that no energy is required to maintain the machine in a warm-up or stand-by mode of operation.