Abstract: Various operating modes of the reproduction machine require the use of machine resources such as an automatic document handler tray, a finisher station tray, a dedicated duplex tray and main and auxiliary paper feed trays. The machine will automatically recover for lost or damaged copy sheets with a minimum amount of operator intervention and loss of copy sheets by efficient use of the machine resources. In particular, job recovery occurs at various levels such as pause in processor operation, point to required duplex tray sheet, and point to set boundary. Various levels of job recovery require use of different resources and some malfunctions imply plural levels of job recovery.

Abstract: Various operating modes of the reproduction machine require the use of an automatic document handler, a finisher station, and a dedicated duplex tray. Various machine malfunctions require different degrees of operator intervention and job recovery. Depending upon the clearance procedures required, the machine will automatically make up for lost or damaged copy sheets with a minimum amount of operator intervention, loss of copy sheets and efficient use of the machine operating components. In particular, for automatic duplex operation, the dedicated duplex tray is primed with certain copies of the documents to be copied in a predetermined sequence. Job recovery is an automatic procedure to reprime or add to the copy sheets already in the dedicated duplex tray to make up for lost or damaged copies in the set without necessarily having to reject a whole set having partial copies in process or copies destroyed in the operator intervention activity. Job recovery for other machine elements is also included.