Abstract:
A method and an apparatus for exposing multi-pages original images or several separate text and/or picture portions onto a light sensitive material like an offset plate or an intaglio plate (6) by means of a laser exposure process, which apparatus comprises a cassette (1) for a light sensitive material (6), a laser unit (3) for exposing said light sensitive material, a discharge conveyor (4) for the ready exposed light sensitive material, and an exposure table (5) which is movable between the plate cassette (1) and the discharge conveyor (4) and under the laser unit (3), and which is formed with means for holding the light sensitive material (6) in a predetermined position thereon, and in which apparatus the laser unit (3) is arranged for taking two different positions, namely a raised position in which the exposure table (5) with the plate (6) can be moved freely under the laser unit (3), and a lowered position, in which the laser unit (3) is being pressed into locking engagement with the plate (6) on the exposure table (5) for making it impossible for the plate (6) and the laser unit (3) to move in relation to each other.