G - Physics – 03 – G
Patent
G - Physics
03
G
G03G 15/04 (2006.01) B41J 2/455 (2006.01) B41J 19/16 (2006.01) G03G 13/04 (2006.01)
Patent
CA 2418294
An imaging method for a printing form (32) is described, with one or more laser diode bars (10) with n individually controllable laser diodes (12) each of which are assigned to one imaging channel, in which the laser diodes (12) of a laser diode bar (10) are divided into a main field (14) of m and into an auxiliary field (16) of (n-m) laser diodes (12) in such a way that an imaging channel (44) in the auxiliary field (16) with a matching feed that can be activated is assigned to each imaging channel (44) in the main field (14) that cannot be activated. In order to create a row (40) of m printing dots (38) on a setting line (36) at even distances a by means of the imaging channels (44), printing dots (38) are set by the main field (14) at a first time, and by the auxiliary field (16) at least at a second time. The imaging channels (44) are shifted relative to the printing form (32) parallel to the setting line (36) between the imaging times. Also, a method for the determination of the largest possible main field (14) with imaging channels (44) that under the circumstances cannot be activated is provided.
Ernst Uwe
Vosseler Bernd
Dennison Associates
Heidelberger Druckmaschinen Aktiengesellschaft
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