EP0316010A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image forming apparatus with air exhaustion
Assignee: Canon Inc
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Filing: 1988-11-11
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Granted: —
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Expires: 2008-11-11
Abstract
Abstract An image forming apparatus includes image forming device for forming a toner image on a recording material, the image forming device including electrical discharger (2), fixing device (13) for fixing the toner image with heat, and air discharging device (24) for discharging air between said fixing device (13) and discharger (2) in said apparatus, and controller for controlling the discharging device (24) in accordance with a heated state of said fixing device (13).
Inventors
- 👤 Hiroaki Tsuchiya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 19:08
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/02; G03G15/0258; G03G15/20; G03G15/2003; G03G21/00; G03G21/20; G03G21/206
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
68 words
An image forming apparatus, comprising: image forming means for forming a toner image on a recording material, said image forming means including discharging means; fixing means for fixing the toner image with heat, and air discharging means for discharging air between said fixing means and discharging means in said apparatus; and control means for controlling said discharging means in accordance with a heated state of said fixing means.
Claim 2
Dependent Claim
68 words
An image forming apparatus, comprising: image forming means for forming a toner image on a recording material, said image forming means including discharging means; fixing means for fixing the toner image with heat, and air discharging means for discharging air between said fixing means and discharging means in said apparatus; and control means for controlling said discharging means in accordance with a heated state of said fixing means.
Claim 3
Dependent Claim
40 words
An apparatus according to Claim 1, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means deactuates said discharging means upon detection by said detecting means a temperature not more than a predetermined.
Claim 4
Dependent Claim
38 words
An apparatus according to Claim 1, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means actuates said discharging means upon detection by said temperature detecting means of a predetermined temperature.
Claim 5
Dependent Claim
39 words
An apparatus according to Claim 1, wherein said fixing means includes a heating source generating heat by supply of electric power, wherein said control means controls said discharging means in accordance with the energy supply to said heating source.
Claim 6
Dependent Claim
28 words
An apparatus according to Claim 1, wherein said image forming means includes a photosensitive member, and said discharging means includes charging means for uniformly charging the photosensitive member.
Claim 7
Dependent Claim
18 words
An apparatus according to Claim 1, wherein said discharging means includes corona discharging means having a discharging wire.
Claim 8
Dependent Claim
33 words
An apparatus according to Claim 1, wherein said fixing means includes a heating roll contactable to a toner image to apply heat thereto and means for applying silicone oil to the heating roller.
Claim 9
Dependent Claim
34 words
An apparatus according to Claim 1, wherein said fixing means includes a pair of rolls for fixing the toner image, and at least one of the rolls is provided with a silicone rubber layer.
Claim 10
Dependent Claim
79 words
An image forming apparatus, comprising: image forming means for forming a toner image on a recording material, said image forming means including discharging means; fixing means for fixing a toner image with heat; heat discharging means for discharging heat produced from said fixing means; and air discharging means for discharging air between said image fixing means and said image forming means; and control means for controlling said discharging means in accordance with a heated state of said fixing means.
Claim 11
Dependent Claim
79 words
An image forming apparatus, comprising: image forming means for forming a toner image on a recording material, said image forming means including discharging means; fixing means for fixing a toner image with heat; heat discharging means for discharging heat produced from said fixing means; and air discharging means for discharging air between said image fixing means and said image forming means; and control means for controlling said discharging means in accordance with a heated state of said fixing means.
Claim 12
Dependent Claim
40 words
An apparatus according to Claim 9, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means deactuates said discharging means upon detection by said detecting means a temperature not more than a predetermined.
Claim 13
Dependent Claim
38 words
An apparatus according to Claim 9, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means actuates said discharging means upon detection by said temperature detecting means of a predetermined temperature.
Claim 14
Dependent Claim
39 words
An apparatus according to Claim 9, wherein said fixing means includes a heating source generating heat by supply of electric power, wherein said control means controls said discharging means in accordance with the energy supply to said heating source.
Claim 15
Dependent Claim
28 words
An apparatus according to Claim 9, wherein said image forming means includes a photosensitive member, and said discharging means includes charging means for uniformly charging the photosensitive member.
Claim 16
Dependent Claim
18 words
An apparatus according to Claim 9, wherein said discharging means includes corona discharging means having a discharging wire.
Claim 17
Dependent Claim
33 words
An apparatus according to Claim 9, wherein said fixing means includes a heating roll contactable to a toner image to apply heat thereto and means for applying silicone oil to the heating roller.
Claim 18
Dependent Claim
34 words
An apparatus according to Claim 9, wherein said fixing means includes a pair of rolls for fixing the toner image, and at least one of the rolls is provided with a silicone rubber layer.
Claim 19
Dependent Claim
74 words
An image forming apparatus, comprising: image forming means for forming a toner image on the recording material, said image forming means including discharging means; fixing means for fixing a toner image with heat; a partition member disposed between said image forming means and said image fixing means; air discharging means for discharging air in said apparatus; and control means for controlling said discharging means in accordance with a heated state of said fixing means.
Claim 20
Dependent Claim
74 words
An image forming apparatus, comprising: image forming means for forming a toner image on the recording material, said image forming means including discharging means; fixing means for fixing a toner image with heat; a partition member disposed between said image forming means and said image fixing means; air discharging means for discharging air in said apparatus; and control means for controlling said discharging means in accordance with a heated state of said fixing means.
Claim 21
Dependent Claim
23 words
An apparatus according to Claim 17, further comprising another partition member, wherein said air discharging means discharge the air between said partition members.
Claim 22
Dependent Claim
20 words
An apparatus according to Claim 17, wherein said partition means substantially isolates said image fixing means and said discharging means.
Claim 23
Dependent Claim
40 words
An apparatus according to Claim 17, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means deactuates said discharging means upon detection by said detecting means a temperature not more than a predetermined.
Claim 24
Dependent Claim
38 words
An apparatus according to Claim 17, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means actuates said discharging means upon detection by said temperature detecting means of a predetermined temperature.
Claim 25
Dependent Claim
39 words
An apparatus according to Claim 17, wherein said fixing means includes a heating source generating heat by supply of electric power, wherein said control means controls said discharging means in accordance with the energy supply to said heating source.
Claim 26
Dependent Claim
28 words
An apparatus according to Claim 17, wherein said image forming means includes a photosensitive member, and said discharging means includes charging means for uniformly charging the photosensitive member.
Claim 27
Dependent Claim
18 words
An apparatus according to Claim 1, wherein said discharging means includes corona discharging means having a discharging wire.
Claim 28
Dependent Claim
33 words
An apparatus according to Claim 17, wherein said fixing means includes a heating roll contactable to a toner image to apply heat thereto and means for applying silicone oil to the heating roller.
Claim 29
Dependent Claim
34 words
An apparatus according to Claim 27, wherein said fixing means includes a pair of rolls for fixing the toner image, and at least one of the rolls is provided with a silicone rubber layer.
Claim 30
Dependent Claim
78 words
An image forming apparatus, comprising: image forming means for forming a toner image on a recording material, said image forming means including discharging means; fixing means for fixing the toner image with heat; air discharging means for discharging air in said apparatus; and control means for controlling said discharging means to provide different discharging power between when said discharging means is operated and when it is not operated, in accordance with a heated state of said fixing means.
Claim 31
Dependent Claim
78 words
An image forming apparatus, comprising: image forming means for forming a toner image on a recording material, said image forming means including discharging means; fixing means for fixing the toner image with heat; air discharging means for discharging air in said apparatus; and control means for controlling said discharging means to provide different discharging power between when said discharging means is operated and when it is not operated, in accordance with a heated state of said fixing means.
Claim 32
Dependent Claim
40 words
An apparatus according to Claim 27, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means deactuates said discharging means upon detection by said detecting means a temperature not more than a predetermined.
Claim 33
Dependent Claim
38 words
An apparatus according to Claim 27, further comprising temperature detecting means for detecting a temperature of said fixing means, wherein said control means actuates said discharging means upon detection by said temperature detecting means of a predetermined temperature.
Claim 34
Dependent Claim
39 words
An apparatus according to Claim 27, wherein said fixing means includes a heating source generating heat by supply of electric power, wherein said control means controls said discharging means in accordance with the energy supply to said heating source.
Claim 35
Dependent Claim
28 words
An apparatus according to Claim 27, wherein said image forming means includes a photosensitive member, and said discharging means includes charging means for uniformly charging the photosensitive member.
Claim 36
Dependent Claim
18 words
An apparatus according to Claim 27, wherein said discharging means includes corona discharging means having a discharging wire.
Claim 37
Dependent Claim
33 words
An apparatus according to Claim 27, wherein said fixing means includes a heating roll contactable to a toner image to apply heat thereto and means for applying silicone oil to the heating roller.
Claim 38
Dependent Claim
34 words
An apparatus according to Claim 27, wherein said fixing means includes a pair of rolls for fixing the toner image, and at least one of the rolls is provided with a silicone rubber layer.
References Cited (Backward Citations)
No citation records indexed.
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