| 摘要 |
The present invention relates to a technique for detecting that all components that make up a completed portion of a form are synchronized. A method is provided for detecting that for a print job, all of the components that make up a completed portion of each form are printed in synchronicity or in the case of an error in synchronicity, an error condition is asserted. The print job comprises at least one form, and each form may contain more than one image, each image may contains one or more image planes and the images on each form of a document may vary. Each image contains a composite image group (CIG) mark comprising the set of image plane coordination (IPC) marks associated with each individual image plane. An IPC mark is printed by each print engine such that it is possible via inspection of these marks to determine if the complete set of image planes that make up a specific image are present. The present invention allows one to confirm, using the CIG marks, that all forms in a print job are synchronized.
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