Abstract:
An optical scanning assembly employs a reflector constructed in the form of a cylindrical helix which is rotatable about the axis of the helix. A light source is arranged to direct a collimated beam of light parallel to the helix axis, so that the light beam strikes a first reflective surface of the reflector. Depending upon the angle of the reflective surface of the reflector with respect to a radial line of the cylinder, the beam of light from the light source will be deflected away from the axis of the cylinder in a predetermined direction. The light then strikes a desired surface and may be reflected therefrom into the photosensitive element for further processing. Because of the rotation of the helix-shaped reflector, the light beam from the light source is scanned back and forth along the line parallel to the helix axis.
Abstract:
The invention relates to a bar for printing an image. It comprises a stack of conductive plates which are insulated from one another in which one end of each forms a printing stylus and n diagonal matrices for addressing the styli whose columns are constituted by plates and are fed via resistors formed on the plates and whose rows common to the n matrices are constituted by electric conductors connected to the columns via diodes which are also formed on the plates.
Abstract:
The invention relates to a bar for printing an image. It comprises a stack of conductive plates which are insulated from one another in which one end of each forms a printing stylus and n diagonal matrices for addressing the styli whose columns are constituted by plates and are fed via resistors formed on the plates and whose rows common to the n matrices are constituted by electric conductors connected to the columns via diodes which are also formed on the plates.
Abstract:
The invention comes within the field of facsimile devices and concerns the winding and unwinding of a document on a rotating drum. According to the invention, the fixing of only one edge of the document on the drum is provided for and the unloading of the document is made easier by a drawer which applies resilient pressure tangentially against the cylindrical surface of the drum. The document is removed in a reverse direction in relation to the operation of the facsimile device.
Abstract:
The invention comes within the field of facsimile devices and concerns the winding and unwinding of a document on a rotating drum. According to the invention, the fixing of only one edge of the document on the drum is provided for and the unloading of the document is made easier by a drawer which applies resilient pressure tangentially against the cylindrical surface of the drum. The document is removed in a reverse direction in relation to the operation of the facsimile device.
Abstract:
The present invention relates to a facsimile transmission installation adapted to allow rapid transmission of the contents of forms. In accordance with the invention, various types of blank forms are memorized and the transmission equipment includes a comparator connected to a memory and to an analysis circuit and allows the transmission of a facsimile signal which represents only the data added on the analyzed filled-in form and the reception equipment includes a text regenerator which operates from a transmitted facsimile signal and from a signal which comes from its memory.
Abstract:
Installation for the remote transmission of facsimiles, comprising a telecopy transmitter device connected by a telephone line to a telecopy receiver device and comprising two buffer memories adapting the transmission speed of the line to that of the transmitter and to that of the receiver respectively. The buffer memories are each constituted by a multi-track magnetic tape driven by a motor controlled by a time base having high stability; the buffer memory on the receiver side comprises, moreover, an electronic assembly, between the magnetic tape and the telecopy receiver device, intended for compensating short-term changes in speed of the tapes.