Flared fuser roll

Heating – Advancing structure flexing – looping or coiling sheet – web... – Internally heated roll

Patent

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Details

29122, 100 93RP, 219216, F27B 928

Patent

active

039990389

ABSTRACT:
An improved pressure heated fusing apparatus for a copier/duplicator machine capable of simplex and duplex operation wherein the copy sheets make two passes through processing stations including a first roll which is heated to a temperature sufficient to fuse toner images onto paper support sheet material and a second roll made of an elastic material arranged axially parallel with said first roll to define a nip through which the paper support sheet material bearing toner images is passed having a longitudinal cross-sectional shape with a maximum diameter at the ends and a minimum diameter at the center.

REFERENCES:
patent: 3884623 (1975-05-01), Slack

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