Browse Prior Art Database

Optimum Placement Of Input Hoppers

IP.com Disclosure Number: IPCOM000051492D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Bielling, RA: AUTHOR [+5]

Abstract

In a dual-input sheet feed attachment for a high-speed printer, the two supply trays are staggered rather than being placed in an even line so as to reduce the overall size of the sheet feed attachment while improving the operation thereof.

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Optimum Placement Of Input Hoppers

In a dual-input sheet feed attachment for a high-speed printer, the two supply trays are staggered rather than being placed in an even line so as to reduce the overall size of the sheet feed attachment while improving the operation thereof.

In the figure, which schematically illustrates the major components of the feed path, the relative positions of upper and lower supply trays 10 and 12 can be seen. The supply trays have associated with them picker/separator units 14 and 16, respectively, of the roll wave generator type similar to that previously described [x]. The picker/separator units 14 and 16 operatively contact their associated stacks for shingling the stacks and allowing the topmost sheets to enter paths 18 and 20, respectively. As shown, the picker/separator units 14 and 16 require additional space for proper operation and acoustic isolation from the remainder of the device.

By locating the sheet supply trays 10 and 12, as indicated, less clearance between the upper and lower trays is required, thereby reducing the height of the entire device. A further advantage of this design is that sheets from supply trays 10 and 12 travel to the common feed path through throats 22 and 24, respectively, each having the same curvature and arc length. In this way, differences in feed characteristics from the two trays are minimized. Reference [*]
R. E. Hunt, "Paper Feed Wheel," IBM Technical Disclosure Bulletin 20, 2933 (January 1978...