EP 1074896 A1 20010207 - Nip width converting mechanism for use in a fusing apparatus
Title (en)
Nip width converting mechanism for use in a fusing apparatus
Title (de)
Vorrichtung zum Ändern der Länge einer Kontaktzone in einer Fixiervorrichtung
Title (fr)
Mécanisme pour changer la largeur de la zone de contact à utiliser dans un appareil de fusion
Publication
Application
Priority
- US 14701299 P 19990803
- US 54409300 A 20000406
Abstract (en)
A fusing nip width converting mechanism (100) and a compact long nip width fusing apparatus including such a mechanism are disclosed for use in a reproduction machine. The compact long nip width fusing apparatus (100) includes a rotatable fuser roller (96) and a rotatable pressure roller (98) forming a roller nip (99) against one another. The fusing nip width converting mechanism (100) includes a first belt directing roller (104) for positioning on an exit side of the roller nip (99), a second belt directing roller (102) for positioning on an entrance side of the roller nip (99), and an endless belt member (106) mounted over the first belt directing roller (104), through the roller nip (99), and over the second belt directing roller (102), thus forming a closed loop. The closed loop of the belt member (106) as mounted is pinched and deflected by the rotatable fuser roller (96) and the rotatable pressure roller (98) within the roller nip (99), and the closed loop as pinched forms a long width fusing nip (110) against the rotatable fuser roller (96), thereby increasing fusing dwell time and fusing thermal efficiency, relative to the roller nip. <IMAGE>
IPC 1-7
IPC 8 full level
G03G 15/20 (2006.01)
CPC (source: EP)
G03G 15/2064 (2013.01); G03G 2215/2012 (2013.01)
Citation (search report)
- [DA] US 5250998 A 19931005 - UEDA MASATO [JP], et al
- [DA] US 5465146 A 19951107 - HIGASHI YUICHIRO [JP], et al
- [A] US 5729812 A 19980317 - MOSER RABIN [US]
- [A] US 5666624 A 19970909 - KANESAWA YOSHIO [JP], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1074896 A1 20010207; BR 0003344 A 20010313; JP 2001075410 A 20010323; MX PA00007255 A 20020424
DOCDB simple family (application)
EP 00306139 A 20000719; BR 0003344 A 20000803; JP 2000224817 A 20000726; MX PA00007255 A 20000725