Browse Prior Art Database

COMPUTER FAN-FOLD DOCUMENT HANDLER

IP.com Disclosure Number: IPCOM000025677D
Original Publication Date: 1987-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 4 page(s) / 183K

Publishing Venue

Xerox Disclosure Journal

Abstract

As shown in the figure, a compact and relatively light apparatus is provided for sequentially copying segments of an elongate sprocket-fed computer fan-fold document. It is particularly suitable for a moving platen type co ier, in

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 49% of the total text.

Page 1 of 4

XEROX DISCLOSURE JOURNAL

COMPUTER FAN-FOLD DOCUMENT Proposed Classification HANDLER U.S. C1.266176 Leland Herriman
C1. Int. W. Richard McGarvey B23k 7/10

\ 28 26 16

As shown in the figure, a compact and relatively light apparatus is provided for sequentially copying segments of an elongate sprocket-fed computer fan- fold document. It is particularly suitable for a moving platen type co ier, in

of the platen after the selected number of copies have been made of the preceding web segment. However, it may also be utilized with fixed platen copiers. It is particularly suitable for either moving platen or fixed platen copiers in which the large size web segment may be copied by being scanned lengthwise on the platen. To this end, this document feeder is designed to feed the web automatically from the front to the rear of the platen, transverse the normal direction of scanning motion of the moving optics or moving platen. In the illustrated CFF feeder embodiment 10, the fan-fold CF web 12 is stacked in a stackin tray 14 on top of the platen cover unit 16. Here, this is

or reverse page order, ta accommodate the usual face-up stacking output of a small copier. The opposite could be done for a copier providing face-down stacking. The CF web 12 is pulled over a low front wall 18 as described in U.
S. Statutory Invention Registration No. H-17 published Feb. 4, 1986. The web 12 is fed through a slot in the platen cover unit 16 around a first roller 18, which may be an idler roller, and is guided by an internal guide or path 20 onto the upper surface of the platen 22. Over the platen 22 the initial segment of the web 12 may be driven towards the rear of the platen by frictional rubber drive rollers 24 and 26. The initial segment of the web 12 may be either

which the web is automatically advanced by one segment during the

Ayback

preferably a f ace-down stacking so that the web will be fed and copied in N- 1

Volume 12 Number 2 March/April 1987 71

[This page contains 1 picture or other non-text object]

Page 2 of 4

COMPUTER FAN-FOLD DOCUMENT HANDLER (Cont'd)

automatically or manually registered to the normal rear registration position of the platen 22 which is conventionally provided by a rear edge guide 28. At this point, which may be after copying this first segment, the initial web segment then is either automatically or manually (as by lifting the entire platen cover unit 16) threaded around a pair of sprocket drive rollers 30. These sprocket drive rollers 30 are driven by a stepper motor or other suitable sequential drive which will positively drive the web 12, through engagement of its opposite side sprocket holes, in a preset or variably preset incremental distance at the conclusion of the selected number of copies of each preceding web segment. The sprocket wheels 30 also provide the second inversion or turnaround of the web For feeding it into an output tray 32 where the copied fan-fold web segments are restacked in a fan-fold manner. Tra...