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ELECTROSTATIC DOCUMENT FOLDER

IP.com Disclosure Number: IPCOM000025027D
Original Publication Date: 1983-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 81K

Publishing Venue

Xerox Disclosure Journal

Abstract

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).

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ELECTROSTATIC DOCUMENT FOLDER (Cont'd)

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).

After a predetermined length of document 5 has passed through rollers 7 and 8, the charge on roller 7 falls to zero. An adjoining roller 9 is charged with a potential opposite that of the document, which serves to draw the document to the surface of roller 9 (see Figure 5). Roller 9 carries the document attached thereto into the nip formed between rollers 8 and 9, where a second folding operation is performed. As the document emerges from rollers 8 and 9, the charge on roller 9 falls to zero. Any remaining charge on the document 5 is neutralized by ground...