Browse Prior Art Database

Front Loading Multi-Function Document Transport for Printers

IP.com Disclosure Number: IPCOM000040399D
Original Publication Date: 1987-Nov-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Drejza, JE: AUTHOR

Abstract

Most printers are designed to primarily use continuous forms which generally load from the back of the machine and follow a path that goes up past the print line and then turns on itself and, overlaying the input path, exits the machine at the back. The paper transport is usually by a pair of pin feed sprockets pulling the paper past the print line. Some printers also accommodate cut forms, by provided a set of pressure feed rolls in addition to the pin feed sprockets. They usually require removal of the continuous form, or the adjustment of the feed rolls and/or the sprockets by the operator.

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Front Loading Multi-Function Document Transport for Printers

Most printers are designed to primarily use continuous forms which generally load from the back of the machine and follow a path that goes up past the print line and then turns on itself and, overlaying the input path, exits the machine at the back. The paper transport is usually by a pair of pin feed sprockets pulling the paper past the print line. Some printers also accommodate cut forms, by provided a set of pressure feed rolls in addition to the pin feed sprockets. They usually require removal of the continuous form, or the adjustment of the feed rolls and/or the sprockets by the operator. The present printer embodiment provides several advantages including a simplified document path which permits easier front loading of continous forms, eliminates interference between incoming and outgoing continuous forms, permits use of cut forms or envelopes without removal of continuous forms or any special operator adjustment, and provides for storage of continuous forms supply without increasing printer footprint. The figure, a representational cross-sectional view of the present embodiment, shows that continuous form 1, feeding from storage bin 2 in the base of the printer, enters through the bottom of the machine, passes around pin feed sprockets 3 (one on each side) under forms retainer 4, between forms guides 5, between friction feed roll 6 and pressure roll 7, past the print line formed by print head 8 a...