Browse Prior Art Database

Original Publication Date: 1983-Apr-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


In the electrostatic document folder proposed, a document 5 to be folded is electrostatically charged initially to a suitable negative (or positive) potential. The document is then fed into the nip between rollers 6 and 7 (see Figure 1). Document charge is retained as the document feeds past rollers 6 and 7 (see Figure 2). After a predetermined document length is fed past rollers 6 and 7, roller 7 is charged with a positive (or negative) potential, drawing the document to its surface (see Figure 3) to cause the documents to bend or crease and to pass between rollers 7 and 8. Rollers 7 and 8, complete folding of the document while at the same time the charge on roller 7 is passed to the document so that the document emerges from rollers 7 and 8 with the same charge as that of roller 7 (see Figure 4).