US4378752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixing apparatus
Assignee: Canon Inc
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Filing: 1981-11-12
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Granted: 1983-04-05
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Expires: 2001-11-12
Abstract
Abstract A fixing apparatus includes a roller for fixing a toner image formed on a supporting element, a container for receiving an offset preventing liquid and an element for applying the offset preventing liquid on the surface of the roller. The liquid applying element is partially immersed in the offset preventing liquid and it includes a liquid applying member for applying the liquid from the end surface of the member by capillary action, and a member adjacent the end surface to affect the capillary action by squeezing the liquid applying member to control the amount of the liquid applied . Felt is preferably used for the liquid applying member.
Inventors
- 👤 Wilhelm Knechtel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:36
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
A fixing apparatus comprising roller means for fixing a toner image formed on a supporting element, a vessel containing an offset preventing liquid, a member, having an end surface contactable with said roller means, for applying, by capillary action, the offset preventing liquid on the surface portion of said roller means which is utilized for the fixing action, means provided adjacent to said end surface of said liquid applying member for controlling the capillary action to thereby control the amount of liquid applied to said roller means by said liquid applying member, means for supporting said liquid applying member, and means for moving said support means toward and away from said roller means such that said end surface of said liquid applying member is movable into and out of contact with said roller means.
Claim 2
Dependent Claim
134 words
A fixing apparatus comprising roller means for fixing a toner image formed on a supporting element, a vessel containing an offset preventing liquid, a member, having an end surface contactable with said roller means, for applying, by capillary action, the offset preventing liquid on the surface portion of said roller means which is utilized for the fixing action, means provided adjacent to said end surface of said liquid applying member for controlling the capillary action to thereby control the amount of liquid applied to said roller means by said liquid applying member, means for supporting said liquid applying member, and means for moving said support means toward and away from said roller means such that said end surface of said liquid applying member is movable into and out of contact with said roller means.
Claim 3
Dependent Claim
43 words
A fixing apparatus according to claim 1, wherein said controlling means comprises a holding member to sandwich said liquid applying member between said support means and said holding member and means for varying the distance between said holding member and said support means.
Claim 4
Dependent Claim
24 words
A fixing apparatus according to claim 2, wherein said distance varying means is a screw to couple said holding member and said support means.
Claim 5
Dependent Claim
16 words
A fixing apparatus according to claim 1, wherein said liquid applying member is made of felt.
Claim 6
Dependent Claim
26 words
A fixing apparatus according to claim 1, wherein said controlling means includes means to squeeze a portion adjacent said end surface of said liquid applying member.
References Cited (Backward Citations)
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Cited
US3097597A
Cited
US3268351A
Cited
US3831553A
Cited
US3883291A
Cited
US3924564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-04-04 | 1986-10-04 | 1987-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-04 | 1990-10-04 | 1991-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-04 | 1994-10-04 | 1995-04-05 | $7700.00 | Window Closed / Lapsed |