Electrographic photocomposing machine

Claim 1

An electrographic photocomposing machine comprising: a rotary type carrier; a flashtube of said rotary type carrier, having a control unit; a photographic unit arranged downstream of said type carrier along the beam from said flashtube; a line forming mechanism arranged downstream of said photographic unit along the beam from said flashtube; a drive of said line forming mechanism, which is essentially a start-stop mechanism; an electric pulse generator of said drive of said line forming mechanism; a switch of said drive of said line forming mechanism, having an input, a control input and an output, said input being connected to said electric pulse generator of said drive of said line forming mechanism; an electrophotographic section arranged downstream of said line forming mechanism along the beam from said flashtube; a cylindrical intermediate image carrier of said electrophotographic section, optically associated with said line forming mechanism; a drive of said intermediate image carrier, which is essentially a start-stop mechanism; an electric pulse generator of said drive of said intermediate image carrier; a switch of said drive of said intermediate image carrier, having an input, a control input and an output, said input being connected to said electric pulse generator of said drive of said intermediate image carrier; a step motor of said drive of said intermediate image carrier, connected in series with said output of said switch of said drive of said intermediate image carrier; a computer unit having a first, second, third, fourth and fifth outputs, said first output of said computer unit being connected to said control input of said switch of said drive of said line forming mechanism, said second output being connected to said control unit of said flashtube, and said third output being connected to said control input of said switch of said drive of said intermediate image carrier; a charging device of said electrophotographic section, arranged in direct proximity to said intermediate image carrier, in the latnet image forming zone, and having a lamp for exposure of said intermediate image carrier; a latent image developing device of said electrophotographic section, contiguous to the surface of said intermediate image carrier and arranged in the direction of its rotation downstream of said charging device; a powder image transferring device of said electrophotographic section, provided with a paper feed system having a paper web and a drive, said powder image transferring device ensuring mechanical contact between said paper web and said intermediate image carrier and being arranged downstream of said intermediate image carrier in the direction of its rotation, said paper web having a first side onto which the powder image is transferred and a second side opposite to the first; heaters of said electrophotographic section, arranged near said paper web at its first side, downstream of said powder image transferring device in the direction of motion of said paper web, and having a neutral wire; a self-contained means for contact heating of said paper web of said electrophotographic section, arranged at the second side of said paper web opposite said heaters; a means for air coolong of the powder image of said electrophotographic section, arranged opposite said heaters level with said paper web; a unit for pulsed actuation of said heaters of said electrophotographic section, having an input, a first and second outputs, said first output of said unit being connected to said heaters and said second output being connected to said means for air cooling of the powder image; a cyclic counter of pulses of said drive of said intermediate image carrier of said unit for pulsed actuation of said heaters, having an input which serves as the input of said unit for pulsed actuation of said heaters and an output; a switch of said unit for pulsed actuation of said heaters, having an input, a first and second outputs, said input of said switch being connected to said output of said cyclic pulse counter, said first and second outputs of said switch serving as the first and second outputs, respectively, of said unit for pulsed actuation of said heaters; a unit for fixing the powder image on the paper of said electrophotographic section, comprising said heaters, said self-contained means for contact heating of said paper web, said means for air cooling of the powder image, and said unit for pulsed actuation of said heaters; a device for cleaning of said intermediate image carrier of said electrophotographic section, arranged downstream of said powder image transferring device in the direction of rotation of said intermediate image carrier.