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US 7,254,362 B2Granted
Fixing device, image forming apparatus using the fixing device, and heat insulating member
AssigneeRicoh Company, Ltd.
InventorsHisashi Kikuchi, Takashi Fujita, Yukimichi Someya, Katsuhiro Echigo, Hiroyuki Kunii, Shigeo Kurotaka, Atsushi Nakafuji
Life of this patent
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Abstract
A fixing device containing at least one fixing member configured to fix a toner image on a transfer material, which includes a first substrate and a pressing member configured to form a nip with the at least one fixing member, which includes a second substrate, and a heater. At least one of the at least one fixing member and the pressing member further contains a heat insulating layer overlying the first or second substrate.
Claims33
A fixing device comprising:
- at least one fixing member configured to fix a toner image on a transfer material, and comprising a first substrate, and not including a heat insulating layer;
- a pressing member configured to form a nip with the at least one fixing member, and comprising a second substrate;
- and
- a heater,
- wherein the pressing member further comprises a heat insulating layer overlying the second substrate.
2 more elements
A fixing device comprising:
- at least one fixing member configured to fix a toner image on a transfer material, and comprising a first substrate;
- a pressing member configured to form a nip with the at least one fixing member, and comprising a second substrate;
- and
- a heater,
- wherein at least one of the at least one fixing member and the pressing member further comprises a heat insulating layer overlying the first or second substrate,
- wherein the heat insulating layer comprises:
- accumulated film layers;
- and
- a filler dispersed between the accumulated film layers to form spaces therebetween.
6 more elements
A fixing device comprising:
- at least one fixing member configured to fix a toner image on a transfer material, and comprising a first substrate;
- a pressing member configured to form a nip with the at least one fixing member, and comprising a second substrate;
- and
- a heater,
- wherein at least one of the at least one fixing member and the pressing member further comprises a heat insulating layer overlying the first or second substrate,
- wherein the heat insulating layer comprises accumulated film layer each having a concavo-convex surface to form spaces therebetween, and
- wherein the heat insulating layer further comprises a filler dispersed between the accumulated film layers having a concavo-convex surface.
4 more elements
A fixing device comprising:
- at least one fixing member configured to fix a toner image on a transfer material, and comprising a first substrate;
- a pressing member configured to form a nip with the at least one fixing member, and comprising a second substrate;
- and
- a heater,
- wherein at least one of the at least one fixing member and the pressing member further comprises a heat insulating layer overlying the first or second substrate,
- wherein the heat insulating layer comprises accumulated thermoplastic resin film layers and a particulate hollow material dispersed therebetween while fixed thereto by a thermoplastic resin.
3 more elements
An image forming apparatus comprising:
- a photoreceptor;
- an irradiator configured to irradiate the photoreceptor to form a latent image on the photoreceptor;
- a developing device configured to develop the latent image on the photoreceptor with toner to form a toner image on the photoreceptor;
- a cleaner configured to remove toner remaining on the photoreceptor;
- a discharging device configured to discharge the photoreceptor;
- a transferring device configured to transfer the toner image to a recording medium;
- and
- a fixing device comprising:
- at least one fixing member configured to fix a toner image on a transfer material, and comprising a first substrate, and not including a heat insulating layer;
- a pressing member configured to form a nip with the at least one fixing member, and comprising a second substrate;
- and
- a heater,
- wherein the pressing member further comprises a heat insulating layer overlying the second substrate.
10 more elements
A heat insulating member comprising:
- a support;
- and
- a heat insulating layer located overlying the support, comprising:
- accumulated film layers;
- and
- a filler dispersed between the accumulated film layers to form spaces therebetween.
3 more elements
A heat insulating member for use in a fixing device of an image forming device, comprising:
- a support;
- and
- a heat insulating layer located overlying the support comprising:
- accumulated film layers each having a concavo-convex surface to form spaces therebetween.
1 more element
A fixing device comprising:
- at least one fixing member configured to fix a toner image on a transfer material, and comprising a first substrate, and not including a heat insulating layer;
- a pressing member configured to form a nip with the at least one fixing member, and comprising a second substrate;
- and
- a heater,
- wherein the pressing member further comprises means for heat insulating overlying the second substrate.
2 more elements
An image forming apparatus comprising:
- a photoreceptor;
- an irradiator configured to irradiate the photoreceptor to form a latent image on the photoreceptor;
- a developing device configured to develop the latent image on the photoreceptor with toner to form a toner image on the photoreceptor;
- a cleaner configured to remove toner remaining on the photoreceptor;
- a discharging device configured to discharge the photoreceptor;
- a transferring device configured to transfer the toner image to a recording medium;
- and
- a fixing device comprising:
- at least one fixing member configured to fix a toner image on a transfer material, and comprising a first substrate, and not including a heat insulating layer;
- a pressing member configured to form a nip with the at least one fixing member, and comprising a second substrate;
- and
- a heater,
- wherein the pressing member further comprises means for heat insulating overlying the second substrate.
10 more elements
Dependencies are inferred from the claim text.