Presses – Concurrent pressing and conveying – Roll type
Patent
1981-11-23
1986-04-29
Coe, Philip R.
Presses
Concurrent pressing and conveying
Roll type
118116, 430 98, G03G 1520
Patent
active
RE0321265
ABSTRACT:
A toner image pressure-fixing device has a pair of pinch rolls arranged in rolling engagement with each other to provide a nip through which a carrier sheet with a deposit of toner particles thereon is passed to fix the deposit to the carrier sheet by pressure. One of the pinch rolls is of a diameter smaller than that of the other and is solid while the other pinch roll is hollow. The small-diameter pinch roll is resiliently urged against the large-diameter pinch roll by leaf springs and is backed up by a single back-up roll which is disposed on the side of the small-diameter pinch roll substantially diametrically opposite to the large-diameter pinch roll and is resiliently urged against the small-diameter pinch roll whereby the small-diameter pinch roll is prevented from being deflected by pressure produced when a carrier sheet is passed through the nip between the pinch rolls.
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Coe Philip R.
Hitachi Metals Ltd.
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