For example, the instant a sheet is fed, DC predicts to the millisecond exactly when that sheet should make it to the next photocell. Based on size and expected speed, it predicts how long it should block that photocell before exiting to the next stage. This sheet-level predictive tracking is performed for every piece as it is fed, accumulated, folded, processed at each insert station through the insertion engine and down the output section, until the piece exits the machine. In effect, DC determines the status of every mail piece from the inside of the envelope out. The status of that mail piece than can be determined by external inspection: the sequence number is as expected, the contents are as expected and collation size is as expected.
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- Pitney Bowes