Electronic printing of print jobs containing jam-prone sheets

In electronic collated printing of an electronic document of plural electronic pages with a printer printing normal sheets with a normal jam rate but printing abnormal printing sheets with a substantially higher jam rate, where associated with the electronic pages is printing sheet selection information, there is provided here electronic separation of the electronic pages of the document which specify the abnormal printing sheets. The system then prints those separated pages onto their abnormal printing sheets prior to printing any of the other electronic pages, temporarily holds them in an interposer, then prints the other pages of the document onto normal sheets, and provides collated merging in the interposer to provide collated output of the entire electronic document.