Collating can be enabled through the /Collate parameter of the setpagedevice operator (standard PS3 behaviour).
Boolean: true/false.
Default value is defined by the operator.
For Jog and Stapling, the page set is defined as presented in the next figures. In this example Number of Copies equals 2 and Collate is set to true and false.
Example Collate
<< /Collate false >> setpagedevice % Sort by page
<< /Collate true >> setpagedevice % Sort by set