Transfer belt unit and image forming apparatus having the same

Details Transfer belt unit and image forming apparatus having the same Transfer belt unit and image forming apparatus having the same

2006-10-24

2010-10-26

Crawford, Gene (Department: 3651)

Conveyors: power-driven

Conveyor section

Endless conveyor

C198S626100, C198S845000, C399S165000, C399S302000

Reexamination Certificate

active

07819240

ABSTRACT:
A transfer belt unit and an image forming apparatus having the same are provided. The transfer belt unit includes a transfer belt circulating and traveling and transferring a toner image formed on a photosensitive body onto a printable medium. A plurality of support rollers support an inner circumference of the transfer belt. A pair of belt guides respectively attached to both edges of the inner circumference of the transfer belt are engaged with a regulating portion disposed in the support rollers to allow the transfer belt to travel in a substantially straight line and each having a joint portion. The joint portion comprises first and second ends separated from each other to be substantially parallel to each other when inclined with respect to a traveling direction of the transfer belt. The second end is located in a posterior position of the first end with respect to the traveling direction of the transfer belt and an external edge of the second end is chamfered.

REFERENCES:
patent: 5709765 (1998-01-01), Herbert et al.
patent: 6160978 (2000-12-01), Tsuruoka et al.
patent: 6608980 (2003-08-01), Murayama et al.
patent: 1333171 (2002-01-01), None
patent: 2002-341671 (2002-11-01), None
patent: 2004184697 (2004-07-01), None
patent: 1020030084575 (2003-11-01), None

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