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US 5,311,269 AGranted
Toner image finishing apparatus
AssigneeEastman Kodak Company
InventorsMuhammad Aslam, Thomas J. Farnand, Thomas W. Mort
Life of this patent
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Abstract
A toner image carried by heat softenable layer on a receiving sheet is either fixed or texturized by a pair of pressure members. The pressure members include a fusing member and a pressure roller. To prevent hot offset of the leading portion of the heat softenable layer, a recess in the pressure roller receives the leading edge of the receiving sheet, thus reducing the pressure in the nip for the leading portion of the receiving sheet.
Claims7
Apparatus for finishing a toner image carried on a heat softenable layer on a receiving sheet, said apparatus comprising:
- a pair of pressure members forming a pressure nip and including a fusing member and a pressure roller,
- means for heating at least one of the pressure members,
- means for driving at least one of the pressure members to move the receiving sheet through the pressure nip,
- means for feeding the receiving sheet into the pressure nip with the heat softenable layer facing the fusing member,
- wherein the pressure roller has a cylindrical outer surface with a recess for receiving a leading edge of the receiving sheet as it is fed into the nip to reduce the pressure on a leading portion of the receiving sheet compared to the pressure on the rest of the sheet as the sheet moves through the nip.
2 more elements
Dependencies are inferred from the claim text.