Multilayer fuser member including current elements
View Patent ↗A fuser member adapted to fuse toner onto the surface of a recording medium as the recording medium passes a nip area of the fuser member comprises a electrically conductive polymer layer, a resistive layer, an electrically conductive layer, a primer layer, and a release layer. The fuser member further comprises a current supply element and a current return element, wherein the current supply element and the current return element are configured to provide current flow through the electrically conductive polymer layer and the resistive layer to generate fusing heat at the nip area.
1. A fuser member adapted to fuse toner on the surface of a recording medium passing a nip area of the fuser member, comprising:
an electrically conductive polymer layer;
a resistive layer;
an electrically conductive layer;
a primer layer;
a release layer; and
a current supply element and a current return element, the current supply element and current return element being operable to provide current flow through the electrically conductive polymer layer and the resistive layer to generate fusing heat at the nip area.
2. A fuser member according to claim 1 , wherein the current supply element and current return element are operable to provide current flow through the resistive layer and into the electrically conductive layer, and the electrically conductive layer is operable to provide the current to the current return element.
3. A fuser member according to claim 1 further comprising an additional resistive layer disposed between the electrically conductive layer and the primer layer.
4. A fuser member according to claim 1 wherein the oxide or nitride comprise aluminum, silicon, or boron.
5. A fuser member according to claim 1 wherein the resistive layer comprises a thickness of about 1 to about 50 nm.
6. A fuser member according to claim 1 wherein the electrically conductive polymer layer comprises polyimide, polyamideimide, or polyetherimide.
7. A fuser member according to claim 1 wherein the electrically conductive polymer layer comprises conductive filler.
8. A fuser member according to claim 7 wherein the conductive filler comprises carbon black.
9. A fuser member according to claim 1 wherein the electrically conductive polymer layer has a thickness of about 10 to about 100 μm.
10. A fuser member according to claim 1 wherein the electrically conductive layer comprises metal.
11. A fuser member according to claim 1 wherein the electrically conductive layer has a thickness of about 0.05 to about 0.20 μm thick.
12. A fuser member according to claim 1 wherein the primer layer comprises fluoropolymer.
13. A fuser member according to claim 1 wherein the primer layer has a thickness of about 1 to about 5 μm.
14. A fuser member according to claim 1 wherein the release layer comprises fluoropolymer.
15. A fuser member according to claim 1 wherein the release layer has a thickness of about 8 to about 30 μm.
16. A fuser member according to claim 1 further comprising a thermally conductive silicone layer disposed between the electrically conductive layer and the primer layer.
17. A fuser member according to claim 16 wherein the silicone layer has a thickness of about 100 to about 400 μm.
18. A fuser member according to claim 16 further comprising an additional primer layer disposed between the thermally conductive silicone layer and the electrically conductive layer.
19. A fuser member according to claim 18 wherein the additional primer layer comprises organosilane.
20. A fuser member according to claim 1 wherein the electrically conductive polymer layer is a continuous layer.
21. A fuser member according to claim 1 wherein the resistive layer comprises an oxide or nitride.
22. A fuser member according to claim 1 wherein the primer layer is disposed between the electrically conductive layer and the release layer.
23. A fuser member adapted to fuse toner on the surface of a recording medium passing a nip area of the fuser member comprising:
an electrically conductive polymer layer;
a resistive layer;
an electrically conductive layer;
a primer layer;
a release layer; and
a current supply roll and a current return roll, the current supply roll and current return roll being operable to provide current flow through the electrically conductive polymer layer and the resistive layer to generate fusing heat at the nip area.
24. A fuser member according to claim 23 wherein the electrically conductive polymer layer is a continuous layer.