US4990964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toner delivery system having a multi-functional toner container for non-mechanical printer and copier means
Assignee: Canon Production Printing Germany GmbH and Co KG
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Filing: 1987-09-25
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Granted: 1991-02-05
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Expires: 2007-09-25
Abstract
Abstract The toner container (10) described has a bottom in the shape of a funnel, with a very deep toner storage region. The side walls of the container consist of flat surfaces, whereby at least one wall (12) of the container forms a support surface for the toner container (10). In order to prevent the adhesion of the toner on the walls of the container, said walls are sloped. The toner container (10) is emptied by means of a vertically movable suction spout arranged in a vertically movable manner. In this way, it can be used both as a transfer tank for fresh toner and as a collection tank for used toner.
Inventors
- 👤 Erich Kraehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:00
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/12; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; G03G15/0865; G03G15/0867; G03G15/087; G03G15/0875; G03G15/0877; G03G15/0881; G03G15/0884; G03G2215/00; G03G2215/06; G03G2215/066; G03G2215/0663; G03G2215/0678; G03G2215/069; Y; Y10; Y10S; Y10S222/00; Y10S222/01
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
173 words
A toner delivery system for delivering toner to a printer or copier means, comprising: a toner container having a filling and emptying opening, a holding mechanism of a printer or copier means being interchangeably fastenable to said filling and emptying opening of said toner container to hold said toner container in a toner removal position, a suction nozzle mounted in said printer or copier means and defining a toner passageway into said printer or copier means, said toner container comprises a funnel-shaped floor that forms a lowest collecting region for the toner, the filling and emptying opening and the collecting region are arranged relative to one another such that, when the toner container is fastened in the holding mechanism in the removal position wherein the collecting region forms the lowest region of the toner container, said suction nozzle mounted in the printer or copier device is displaceable into the collecting region; and in that at least one container wall of the toner container is fashioned as a supporting surface for the toner container.
Claim 2
Dependent Claim
173 words
A toner delivery system for delivering toner to a printer or copier means, comprising: a toner container having a filling and emptying opening, a holding mechanism of a printer or copier means being interchangeably fastenable to said filling and emptying opening of said toner container to hold said toner container in a toner removal position, a suction nozzle mounted in said printer or copier means and defining a toner passageway into said printer or copier means, said toner container comprises a funnel-shaped floor that forms a lowest collecting region for the toner, the filling and emptying opening and the collecting region are arranged relative to one another such that, when the toner container is fastened in the holding mechanism in the removal position wherein the collecting region forms the lowest region of the toner container, said suction nozzle mounted in the printer or copier device is displaceable into the collecting region; and in that at least one container wall of the toner container is fashioned as a supporting surface for the toner container.
Claim 3
Dependent Claim
20 words
A toner delivery system according to claim 1, wherein all container walls of said toner container are substantially planar surfaces.
Claim 4
Dependent Claim
60 words
A toner delivery system according to claim 1, wherein said toner container comprises container walls disposed at a slant in order to facilitate flow of the toner to said collecting region of said toner container, said container walls describing an angle with reference to a vertical axis of the toner container in the removal position of less than 45 degrees.
Claim 5
Dependent Claim
33 words
A toner delivery system according to claim 1, wherein said holding mechanism further comprises a shaker mechanism operable to shake said toner container when said toner container is fastened to said holding mechanism.
Claim 6
Dependent Claim
27 words
A toner delivery system according to claim 1, wherein said holding mechanism further comprises a means for swivelably inserting the container into the printer or copier means.
Claim 7
Dependent Claim
73 words
A toner delivery system according to claim 1, further comprising: a flexible protective sheath about said suction nozzle to permit vertical displacement of said suction nozzle within said sheath, a guide means for guiding said suction nozzle during vertical displacement, said guide means being arranged above the holding mechanism, whereby the suction nozzle gravitationally displaces itself along said guide means in accord with the level of toner in the toner container during draw-off.
Claim 8
Dependent Claim
39 words
A toner delivery system according to claim 6, further comprising: an adapter between said guide means and said holding mechanism that connects the flexible protective sheath to said filling and emptying opening of the toner container in dust-tight fashion.
Claim 9
Dependent Claim
55 words
A toner delivery system according to claim 7, wherein said toner container has a foil covering said filling and emptying opening when said toner container is in a filled condition, and further comprising: a cutting means for penetrating said foil that covers the filling and emptying opening of the toner container in its filled condition.
Claim 10
Dependent Claim
24 words
A toner delivery system according to claim 1, further comprising: a gripper element on said toner container by which said toner container is gripped.
Claim 11
Dependent Claim
23 words
A toner delivery system according to claim 1, further comprising: a closing cover fastened in captive fashion to the filling and emptying opening.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |