| 摘要 |
A printing unit having at least one press unit, the, or each, press unit having at least one form cylinder, a transfer cylinder, an inking unit and preferably a damping unit, and having at least one imaging device for imaging and/or de-imaging a rewritable and erasable printing form positioned on the form cylinder. The, or each, imaging device having at least one laser device for producing at least one laser beam and an optical device for focusing the, or each, laser beam on the printing form. At least the laser device of the, or each, imaging device is arranged at a distance from the respective form cylinder, it being possible for the, or each, laser beam produced by the laser device to be conducted via at least one optical fiber in the direction of the optical device of the imaging device positioned in the region of the respective form cylinder.
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