The purpose of a separator sheet during document capture is to

In high-volume document scanning, a separator sheet is a physical page with a special marking (like a patch code or barcode) placed between individual logical documents within a single physical stack (a batch). When the batch is fed through a scanner, the capture software recognizes the separator sheet. This recognition triggers the software to close the file for the preceding document and open a new one for the pages that follow. This automates the process of separating distinct documents, such as multiple invoices or applications, that are scanned together for efficiency.

A. Separator sheets are used between whole documents (which can be multi-page), not between every single page of one document.
C. Ensuring back pages are scanned is the function of a duplex scanner setting, which is independent of separator sheets.
D. While a separator sheet marks the end of the previous document, its primary function is to signal the start of a new one, thereby separating documents.

1. AIIM International. (2018). Intelligent Capture: Extracting Value from Content. White Paper. The paper discusses batch processing and the use of "separator sheets with patch codes or barcodes to automatically delineate document boundaries." (Section: "Key Capture Functions").

2. Kofax, Inc. (2021). Kofax Capture Administrator's Guide. Chapter 4: "Scan Module". The documentation details the configuration of patch codes and separator sheets to "separate documents and folders within a batch."

3. Seamons, K. E. (2003). Document-Driven Design for Content Management Systems. Ph.D. Dissertation, Brigham Young University. Section 2.1.2 "Document Capture" describes the batch scanning process, including the use of "separator pages to indicate the beginning of a new document." (Page 12).