EP0441351A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image forming device
Assignee: Canon Inc
•
Filing: 1991-02-06
•
Granted: —
•
Expires: 2011-02-06
Abstract
Abstract The image forming device of the present invention relates to an image forming device having a moving member (4) which moves while pressing a recording material (5) against an image carrying member (2) as the means of transferring the image on the image carrying member (2) to the recording material (5). Further, the image forming device has a pair of moving members for fixing the image by conveying the recording material (5) sandwiched therebetween, of which the moving member on the side not in contact with the unfixed image is a moving member having an elastic material layer and a resin surface layer. Further, the present invention has the surface of the moving member of the fixing means (6) on the side not in contact with the unfixed image which is better mold releasability with that of the moving member (4) of the transfer means.
Inventors
- 👤 Koichi Suwa
- 👤 Masahiro Goto
- 👤 Takahiro Inoue
- 👤 Koichi Hiroshima
- 👤 Shinichi Tsukida
- 👤 Junichi Kato
- 👤 Hideyuki Yano
- 👤 Manabu Takano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 22:30
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/206
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
129 words
An image forming device comprising: a movable image carrying member; means for transferring the image on said image carrying member, said transfer means having a moving member which moves a recording material while pressing it against said image carrying member; and means for fixing the image onto the recording material, said fixing means having a pair of moving members for fixing an unfixed image by conveying the recording material sandwiched therebetween, the moving member of the pair of moving members which is not in contact with the unfixed image having an elastic material layer and a resin surface layer: wherein the mold releasability of the surface of the moving members of said fixing means is better than that of the surface of the moving member of said transfer means.
Claim 2
Dependent Claim
18 words
An image forming device according to Claim 1, wherein said resin surface layer is a fluorine resin layer.
Claim 3
Dependent Claim
17 words
An image forming device according to Claim 1, wherein said elastic material layer is a rubbery layer.
Claim 4
Dependent Claim
17 words
An image forming device according to Claim 2 wherein said elastic material layer is a rubbery layer.
Claim 5
Dependent Claim
17 words
An image forming device according to Claim 3, wherein said rubbery layer is a silicone rubber layer.
Claim 6
Dependent Claim
17 words
An image forming device according to Claim 4, wherein said rubbery layer is a silicone rubber layer.
Claim 7
Dependent Claim
37 words
An image forming device according to Claim 2, wherein said fluorine resin layer is a surface layer obtained by coating a mixture of a fluorine resin and a fluorine rubber on said elastic layer followed by calcination.
Claim 8
Dependent Claim
19 words
An image forming device according to Claim 2, wherein said resin surface layer is a fluorine resin tube layer.
Claim 9
Dependent Claim
48 words
An image forming device according to Claim 2, wherein said fluorine resin layer is a surface layer obtained by coating a fluorine resin on the layer, which is obtained by coating a mixture of a fluorine resin and a fluorine rubber on said elastic layer followed by calcination.
Claim 10
Dependent Claim
17 words
An image forming device according to Claim 5, wherein said rubbery layer is a foamed material layer.
Claim 11
Dependent Claim
17 words
An image forming device according to Claim 6, wherein said rubbery layer is a foamed material layer.
Claim 12
Dependent Claim
19 words
An image forming device according to Claim 10, wherein said resin surface layer is a fluorine resin tube layer.
Claim 13
Dependent Claim
19 words
An image forming device according to Claim 11, wherein said resin surface layer is a fluorine resin tube layer.
Claim 14
Dependent Claim
18 words
An image forming device according to Claim 1, wherein said elastic material layer is subjected to electroconductive treatment.
Claim 15
Dependent Claim
23 words
An image forming device according to Claim 14, wherein said elastic material layer has a volume resistivity value of 10¹¹ Ω·cm or less.
Claim 16
Dependent Claim
18 words
An image forming device according to Claim 14, wherein said resin surface layer is subjected to electroconductive treatment.
Claim 17
Dependent Claim
21 words
An image forming device according to Claim 16, wherein said resin surface layer has a volume resistivity value of 10¹² Ω·cm.
Claim 18
Dependent Claim
17 words
An image forming device according to Claim 14, wherein said elastic material is a silicone rubber layer.
Claim 19
Dependent Claim
18 words
An image forming device according to Claim 18, wherein said resin surface layer is a fluorine resin layer.
Claim 20
Dependent Claim
17 words
An image forming device according to Claim 19, wherein said rubber layer is a foamed material layer.
Claim 21
Dependent Claim
18 words
An image forming device according to Claim 16, wherein said resin surface layer is a fluorine resin layer.
Claim 22
Dependent Claim
32 words
An image forming device according to Claim 14, wherein the moving member on the side not in contact with said unfixed image has a core material earthed beneath said elastic material layer.
Claim 23
Dependent Claim
32 words
An image forming device according to Claim 14, wherein the moving member on the side not in contact with said unfixed image has a core material earthed beneath said elastic material layer.
Claim 24
Dependent Claim
32 words
An image forming device according to Claim 16, wherein the moving member on the side not in contact with said unfixed image has a core material earthed beneath said elastic material layer.
Claim 25
Dependent Claim
33 words
An image forming device according to Claim 2, wherein the moving member on the side in contact with the unfixed image of said pair of moving members has a fluorine resin surface layer.
Claim 26
Dependent Claim
26 words
An image forming device according to Claim 1, wherein the moving member on the side not in contact with said unfixed image is a rotary member.
Claim 27
Dependent Claim
17 words
An image forming device according to Claim 26, wherein said fixing means is a heating fixing means.
Claim 28
Dependent Claim
22 words
An image forming device according to Claim 1, wherein the moving member of said transfer means is a rotary member having elasticity.
Claim 29
Dependent Claim
30 words
An image forming device according to Claim 28, wherein said rotary means has a foamed sponge rubber layer on the core material, and the rubber layer constitutes the surface layer.
Claim 30
Dependent Claim
18 words
An image forming device according to Claim 28, wherein said moving member is applied with a predetermined voltage.
Claim 31
Dependent Claim
18 words
An image forming device according to Claim 29, wherein said moving member is applied with a predetermined voltage.
Claim 32
Dependent Claim
27 words
An image forming device according to Claim 30, wherein said moving member is applied with a voltage of the opposite polarity during non-transfer to that during transfer.
Claim 33
Dependent Claim
27 words
An image forming device according to Claim 31, wherein said moving member is applied with a voltage of the opposite polarity during non-transfer to that during transfer.
Claim 34
Dependent Claim
29 words
An image forming device according to Claim 28, wherein said rotary member has a foamed sponge rubber layer on the core material, and has a surface rubber layer thereon.
Claim 35
Dependent Claim
37 words
An image forming device according to Claim 1, wherein the distance between said image transfer position and said image fixing position is shorter than the length of the recording material with the maximum size to be used.
Claim 36
Dependent Claim
37 words
An image forming device according to Claim 1, wherein the lubricity of the surface of the moving members of said fixing means is better than that of the surface of the moving member of said transfer means.
Claim 37
Dependent Claim
25 words
An image forming device according to Claim 14, wherein a bias is applied on one of the pair of moving members of said fixing means.
Claim 38
Dependent Claim
29 words
An image forming device according to Claim 14, wherein a diode is connected in a predetermined direction to one of the pair of moving members of said fixing means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.