Transfer printing station for parallel processing of two recording medium webs

A transfer printing station for a high speed electrographic printer or copier device, comprising:

• an intermediate carrier for transfering toner images to a recording medium;
• a charging corotron for charging said intermediate carrier;
• a character generator for character generation on said intermediate carrier;
• a transfer printing saddle,
• two recording medium webs having margin perforations conducted over said transfer printing saddle in close proximity next to one another,
• a conveyor means for parallel transporting of the two recording medium webs at least in a region of a transfer printing saddle,
• toothed belts respectively allocated to the margin perforations of the recording medium webs,
• axially spaced, motor-driven toothed disks over which said toothed belts are guided, and
• dog pins centrally secured on an outside circumferential surface of the toothed belts, said dog pins including a collar with guide surfaces which is adjoined by a tapering head part and that engage into the margin perforations up to the collar in a conveying path lying between the toothed disks and convey the two parallel recording medium webs, whereby, for achieving a high line alignment precision, the toothed belts include transport teeth on their inside circumferential surface that are arranged in a predetermined tooth division based on the spacing of the margin perforations of the recording medium webs having a division error from tooth to tooth or, respectively, gap to gap that is a fraction of a required line alignment precision and comprise dog pins mounted on their outside circumferential surface dependent on the tooth division of the transport teeth.