A printing system and method using alternating control modes for one or more, but not all, sheet transport devices in order to avoid contention. In a printer having first, second and third sheet transport devices in series (e.g., registration, image transfer and image fixing devices), the second device...http://www.google.de/patents/US8020864?utm_source=gb-gplus-sharePatent US8020864 - Printing system and method using alternating velocity and torque control modes for operating one or more select sheet transport devices to avoid contention
