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US 5,669,053 AGranted
Roller transfer device and transfer roller manufacturing method
AssigneeKabushiki Kaisha TEC
InventorsHiroshi Hashizume, Yoshiaki Okano
Life of this patent
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Abstract
Disclosed is a transfer device using a transfer roller including a conductive elastic layer having a heat resistance not less than 180.degree. C., an adhesive layer formed on the conductive elastic layer, and a fluorine-based film resistance layer formed on the adhesive layer, or a transfer roller in which the adhesive strength between an adhesive layer formed on a conductive elastic layer and a fluorine-based film resistance layer formed on the adhesive layer is 150 g/cm or higher.
Claims16
A roller transfer device comprising:
- a transfer roller including a metal core shaft, a conductive elastic layer formed on said core shaft and having a heat resistance of not less than 150.degree. C., an adhesive layer formed on said conductive elastic layer, and a fluorine-based film resistance layer formed on said adhesive layer;
- and
- a voltage application member connected to said transfer roller;
- wherein:
- said conductive elastic layer has an Asker C hardness of approximately 25 to 38 and a volume resistivity of 10 to 10.sup.6 .OMEGA..multidot.cm;
- and
- said adhesive layer essentially consists of at least one type of a material selected from the group consisting of a conductive vinyl chloride resin and a conductive polyurethane resin.
4 more elements
A roller transfer device comprising:
- a transfer roller including a metal core shaft, a conductive elastic layer formed on said core shaft, an adhesive layer formed on said conductive elastic layer, and a fluorine-based film resistance layer formed on said adhesive layer;
- and
- a voltage application member connected to said transfer roller,
- wherein an adhesive strength between said adhesive layer and said fluorine-based film resistance layer is not less than 150 g/cm.
1 more element
A roller transfer device comprising:
- a transfer roller including a metal core shaft, a conductive elastic layer formed on said core shaft and having a heat resistance of not less than 150.degree. C., an adhesive layer formed on said conductive elastic layer, and a fluorine-based film resistance layer formed on said adhesive layer;
- and
- a voltage application member connected to said transfer roller, wherein:
- said fluorine-based film resistance layer has a volume resistivity of 10.sup.8 to 10.sup.12 .OMEGA..multidot.cm;
- and
- said adhesive layer essentially consists of at least one type of a material selected from the group consisting of a conductive vinyl chloride resin and a conductive polyurethane resin.
3 more elements
Dependencies are inferred from the claim text.