Multicolor tandem reproduction machine having a transfix-like pr

Details Multicolor tandem reproduction machine having a transfix-like pr Multicolor tandem reproduction machine having a transfix-like pr

1999-10-04

2000-10-03

Grainger, Quana M.

Electrophotography

Document handling

Copy

399390, G03G 1500

Patent

active

061284653

ABSTRACT:
An image reproduction machine is provided, and includes a paper substrate feeding assembly having a substrate path for feeding a portion of paper substrate; a moveable image bearing member having an imaging path; toner image forming devices along the imaging path for forming a toner image on the image bearing member; an image transfer station along the substrate path for transferring the toner image onto a portion of paper substrate fed by the paper substrate feeding assembly; and a toner image fusing assembly having heat and pressure devices for heating and fusing the toner image onto the portion of paper substrate. The reproduction machine importantly includes a blank paper substrate preconditioning apparatus (PSPA) for changing and stabilizing a size of the portion of paper substrate before it is fed to the image transfer station. The PSPA is mounted along the substrate path and upstream of the image transfer station relative to movement of the portion of paper substrate, and includes heat and pressure devices for preheating and pre-stressing the portion of paper substrate, thereby causing it to change size to an extent not alterable by subsequent application of heat and pressure within the toner image fusing assembly, thus resulting in highly registered quality reproduced toner images.

REFERENCES:
patent: 5099281 (1992-03-01), Bhagat
patent: 5200285 (1993-04-01), Carrish
patent: 5500667 (1996-03-01), Schwiebert et al.
patent: 5552863 (1996-09-01), Genovese

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