Browse Prior Art Database

Roll Fuser with Vacuum Tack

IP.com Disclosure Number: IPCOM000075407D
Original Publication Date: 1971-Sep-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Hamilton, WR: AUTHOR

Abstract

Rolls 10 and 11 form a fusing roll couple between which paper P bearing a thermoplastic powder image is passed for fixing of the image. Fusing roll 10 has a deformable outer layer 12 of a suitable rubber material for creating a depression where engaged by roll 11. Heat source 13 heats the surface 12 of roll 10 prior to engagement with the paper P. Internal of roll 11 is a wall member 14 which is connected through duct 15 to a vacuum source and creates a vacuum chamber 16 adjacent the point of engagement between rolls 10 and 11 and just downstream thereof. Perforations 17 in the roll 11 provide communication with vacuum chamber 16, thereby insuring that paper P will remain attached to the backup roll 11 as the paper leaves the point of engagement between rolls 10 and 11.

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Roll Fuser with Vacuum Tack

Rolls 10 and 11 form a fusing roll couple between which paper P bearing a thermoplastic powder image is passed for fixing of the image. Fusing roll 10 has a deformable outer layer 12 of a suitable rubber material for creating a depression where engaged by roll 11. Heat source 13 heats the surface 12 of roll 10 prior to engagement with the paper P. Internal of roll 11 is a wall member 14 which is connected through duct 15 to a vacuum source and creates a vacuum chamber 16 adjacent the point of engagement between rolls 10 and 11 and just downstream thereof. Perforations 17 in the roll 11 provide communication with vacuum chamber 16, thereby insuring that paper P will remain attached to the backup roll 11 as the paper leaves the point of engagement between rolls 10 and 11.

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