Browse Prior Art Database

HIGH SPEED COLOR FUSER

IP.com Disclosure Number: IPCOM000026522D
Original Publication Date: 1992-Aug-31
Included in the Prior Art Database: 2004-Apr-06
Document File: 2 page(s) / 87K

Publishing Venue

Xerox Disclosure Journal

Abstract

Generally roll fusers used in xerographic print engines are significantly more efficient than other types of fusers due to their use of high pressure and short dwell heat transfer nips. Roll fusers used for fusing high pile height color images to produce glossy surfaces typically are not energy efficient. Low energy efficiency for fusing these images results from fuser roll nip dwell requirements of 50 to 100 mili seconds while using a heated pressure roll. Post fuser cooling and moisture addition to images to control paper wrinkle are also important processes maintaining print engine efficiency.

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XEROX DISCLOSURE JOURNAL

HIGH SPEED COLOR FUSER

Classification Proposed Rabin Moser U.S. C1.3551200

Int. C1. G03g 15/00

35

FIG. I

XEROX DISCLOSURE JOURNAL - Vol. 17, No. 4 July/August 1992 225

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HIGH SPEED COLOR FUSER(Cont'd)

Generally roll fusers used in xerographic print engines are significantly more efficient than other types of fusers due to their use of high pressure and short dwell heat transfer nips. Roll fusers used for fusing high pile height color images to produce glossy surfaces typically are not energy efficient. Low energy efficiency for fusing these images results from fuser roll nip dwell requirements of 50 to 100 mili seconds while using a heated pressure roll. Post fuser cooling and moisture addition to images to control paper wrinkle are also important processes maintaining print engine efficiency.

A fuser combining heating and cooling into one fixture to fuse toner to paper is disclosed and shown in Figure 1. Fusing belt 10 insulated by cover 20 is maintained around 280°F, establishing a temperature around which interface 25, between belt 10 and image transport 35, varies. Interface 25 is held around 310°F during fusing and around 250°F during release or stripping. Heat is added and removed through the backside of images 30 while traveling on image transport 35 through interface 25 using heater 40 during fusing and using cooler / moisturizer 50 during release or stripping respe...