| 摘要 |
An image processing apparatus comprises a tandem print engine configuration for forming two-sided prints. The print engines include a master print engine and a slave print engine downstream from the master print engine. The image processing apparatus matches the periods of revolution of the photoreceptors of the master and slave print engines during print runs, by simultaneously adjusting both the velocity of the slave photoreceptor and color imagers of the slave print engine. The velocity controllers for the slave photoreceptor and imagers can have the same dynamic response and can be simultaneously actuated, to minimize incremental registration errors in the slave print engine. In addition, the controllers can be operated at an adjustment level that is achievable by both controllers.
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