METHOD FOR ELECTROSTATICALLY CHARGING A RECORDING MATERIAL AND DEVICE FOR MAKING USE OF THIS METHOD

摘要

A predetermined bending stress is applied in the direction of transport to a recording material, in particular a printing plate, which passes underneath a spray corona for electrostatic charging, the bending stress bringing about a flat contact of the printing plate on a supporting surface. This compensates for edge undulations of the printing plate caused during production. The charging apparatus has pairs of transport rollers which are arranged in front of and behind the supporting surface such that their nips for the printing plate lie above the supporting surface. Between each pair of transport rollers and the spray corona is attached a deflection roller which positively leads the printing plate down to the horizontal supporting surface at a first angle or lifts it up from the supporting surface at a second angle.