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US4389968A
Expired / Lapsed
US
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Toner regenerating device
Assignee: Canon Inc
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Filing: 1981-05-19
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Granted: 1983-06-28
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Expires: 2001-05-19
Abstract
Abstract A toner regenerating device is provided with a mesh disposed in the route of toner collected from an image bearing member, and apparatus for imparting to the collected toner through the mesh a force causing the collected toner to pass through the mesh and a force causing the collected toner to move along the mesh and in which the collected toner on the mesh containing foreign matter and solidified toner is loosened so that the solidified toner is divided into fine particles while, at the same time, the foreign matter is caused to float up over the collected toner and prevented from passing through the mesh.
Inventors
- 👤 Hiroshi Satomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:16
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/105
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
180 words
A toner regenerating device comprising: cleaning means for removing magnetic toner remaining on an image bearing body; a mesh member; means for guiding and supplying the toner removed by said cleaning means to said mesh member; magnetic field imparting means provided adjacent to said mesh member at a location opposite to the side where toner is supplied by said guiding and supplying means; non-magnetic toner carrying means provided between said magnetic field imparting means and said mesh member for bearing the toner which passes through said mesh member; and collecting means for collecting the toner born on said carrying means; wherein said carrying means and magnetic field imparting means are relatively movable to carry onto and along said mesh member only a certain amount of the toner in accordance with the magnetic force imparted by said magnetic field imparting means from the total amount of the toner supplied by said cleaning means so that non-magnetic components are separated from the supplied toner and toner from which the non-magnetic components have been removed is born on said carrying means and collected.
Claim 2
Dependent Claim
180 words
A toner regenerating device comprising: cleaning means for removing magnetic toner remaining on an image bearing body; a mesh member; means for guiding and supplying the toner removed by said cleaning means to said mesh member; magnetic field imparting means provided adjacent to said mesh member at a location opposite to the side where toner is supplied by said guiding and supplying means; non-magnetic toner carrying means provided between said magnetic field imparting means and said mesh member for bearing the toner which passes through said mesh member; and collecting means for collecting the toner born on said carrying means; wherein said carrying means and magnetic field imparting means are relatively movable to carry onto and along said mesh member only a certain amount of the toner in accordance with the magnetic force imparted by said magnetic field imparting means from the total amount of the toner supplied by said cleaning means so that non-magnetic components are separated from the supplied toner and toner from which the non-magnetic components have been removed is born on said carrying means and collected.
Claim 3
Dependent Claim
16 words
A toner regenerating device according to claim 1, wherein said mesh member is of non-magnetic material.
Claim 4
Dependent Claim
30 words
A toner regenerating device according to claim 1, wherein said magnetic field imparting means is movable relative to said mesh member, and said mesh member and carrying means are fixed.
Claim 5
Dependent Claim
27 words
A toner regenerating device according to claim 2 or 3, wherein at least a part of said magnetic field imparting means is surrounded by said mesh member.
Claim 6
Dependent Claim
44 words
A toner regenerating device according to claim 1, wherein said magnetic field imparting means is a magnetic roller provided with magnetic poles along its periphery, and at least a part of said mesh member and said carrying means are concentric with said magnetic roller.
Claim 7
Dependent Claim
25 words
A toner regenerating device according to claim 5, wherein said magnetic roller is provided with alternating magnetic poles which are spirally arranged along its periphery.
Claim 8
Dependent Claim
30 words
A toner regenerating device according to claim 6, wherein the toner is supplied at one end of said magnetic roller and the toner is collected at the other end thereof.
Claim 9
Dependent Claim
189 words
A toner regenerating device comprising: cleaning means for removing magnetic toner remaining on an image bearing body; a mesh member; means for guiding and supplying the toner removed by said cleaning means to said mesh member; a magnetic roller provided adjacent to said mesh member at a location opposite to the side where toner is supplied by said guiding and supplying means; non-magnetic toner carrying means provided between said magnetic roller and said mesh member to bear the toner which passes through said mesh member; collecting means for collecting the toner born by said carrying means; and transport means for carrying the collected toner to a developing device; wherein said carrying means and magnetic roller are relatively movable to carry onto and along said mesh member only a certain amount of the toner in accordance with the magnetic force of said magnetic roller from the total amount of the toner supplied by said cleaning means so that non-magnetic components are separated from the supplied toner and the toner from which the non-magnetic components have been removed is born on said carrying means, collected and transferred to the developing device.
Claim 10
Dependent Claim
189 words
A toner regenerating device comprising: cleaning means for removing magnetic toner remaining on an image bearing body; a mesh member; means for guiding and supplying the toner removed by said cleaning means to said mesh member; a magnetic roller provided adjacent to said mesh member at a location opposite to the side where toner is supplied by said guiding and supplying means; non-magnetic toner carrying means provided between said magnetic roller and said mesh member to bear the toner which passes through said mesh member; collecting means for collecting the toner born by said carrying means; and transport means for carrying the collected toner to a developing device; wherein said carrying means and magnetic roller are relatively movable to carry onto and along said mesh member only a certain amount of the toner in accordance with the magnetic force of said magnetic roller from the total amount of the toner supplied by said cleaning means so that non-magnetic components are separated from the supplied toner and the toner from which the non-magnetic components have been removed is born on said carrying means, collected and transferred to the developing device.
Claim 11
Dependent Claim
34 words
A toner regenerating device according to claim 1 or 8, wherein the size of the apertures of said mesh member is five to fifty times as large as the diameter of the toner particles.
Claim 12
Dependent Claim
24 words
A toner regenerating device according to claim 9, wherein the size of the apertures of said mesh member is between about 60μ and 600μ.
Claim 13
Dependent Claim
26 words
A toner generating device according to claim 8, wherein said magnetic roller is stationary and said carrying means is concentric with magnetic roller and is rotatable.
Claim 14
Dependent Claim
31 words
A toner regenerating device according to claim 8, wherein said magnetic roller rotates and at least a part of said carrying means is concentric with said magnetic roller and is stationary.
Claim 15
Dependent Claim
17 words
A toner generating device according to claim 8, further comprising means to convey the recovered non-magnetic components.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-27 | 1986-12-27 | 1987-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-27 | 1990-12-27 | 1991-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-27 | 1994-12-27 | 1995-06-28 | $7700.00 | Window Closed / Lapsed |