US5933696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoreceptor with internal waste toner container
Assignee: Xerox Corp
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Filing: 1997-08-15
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Granted: 1999-08-03
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Expires: 2017-08-15
Abstract
Abstract A photoreceptor assembly and a xerographic cassette for a printing or copying machine, the cassette including a photoreceptor drum, a drum cleaner, a waste toner container, for storing waste toner; and a waste toner conveyor for conveying waste toner cleaned off said photoreceptor drum by the cleaner into the waste toner container characterized in that the waste toner container is positioned in the interior of the photoreceptor drum and is reversibly removable therefrom. The conveyor typically includes a flexible helical wire which acts as an auger. Once filled with waste toner, the waste toner container is removed from the drum and is replaced by a fresh container.
Inventors
- 👤 Alan C. R. Howard
- 👤 Edward J. Byrne
- 👤 Raymond A. Harvey
- 👤 Chistopher Pearce
- 👤 Roger D. Masham
- 👤 Anilkumar G. Bhagwat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:29
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/12; G03G21/105; G03G21/16; G03G21/18; G03G21/1803; G03G21/1814; G03G2221/00; G03G2221/16; G03G2221/1618; G03G2221/1624
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, said waste toner container being cylindrical in shape having an outer surface that engages with an inner surface of said photoreceptor drum, and further, wherein said photoreceptor drum includes a first end cap and a second end cap, one of said end caps having an opening to allow access of the waste toner conveying means to said waste toner container.
Claim 2
Dependent Claim
106 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, said waste toner container being cylindrical in shape having an outer surface that engages with an inner surface of said photoreceptor drum, and further, wherein said photoreceptor drum includes a first end cap and a second end cap, one of said end caps having an opening to allow access of the waste toner conveying means to said waste toner container.
Claim 3
Dependent Claim
116 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, and further, wherein said photoreceptor drum includes a first end can and a second end cap, one of said end caps having an opening to allow access of the waste toner conveying means to said waste toner contain, said first end cap comprising an internally threaded bearing cap; and said waste container having an opening defined by a threaded rim, said threaded rim for engaging said internally threaded bearing cap.
Claim 4
Dependent Claim
116 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, and further, wherein said photoreceptor drum includes a first end can and a second end cap, one of said end caps having an opening to allow access of the waste toner conveying means to said waste toner contain, said first end cap comprising an internally threaded bearing cap; and said waste container having an opening defined by a threaded rim, said threaded rim for engaging said internally threaded bearing cap.
Claim 5
Dependent Claim
35 words
An assembly as recited in claim 2, wherein said waste toner container having lugs and said second end cap having receiving cavities, said lugs engaging said receiving cavities for rotation of said second end cap.
Claim 6
Dependent Claim
67 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, wherein said waste toner container reversibly engages said photoreceptor drum, said photoreceptor drum rotates as said waste toner container also rotates.
Claim 7
Dependent Claim
67 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, wherein said waste toner container reversibly engages said photoreceptor drum, said photoreceptor drum rotates as said waste toner container also rotates.
Claim 8
Dependent Claim
80 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, wherein said waste toner container being reversibly fixable within the interior of said photoreceptor drum such that upon rotation of said photoreceptor drum, said waste toner container remains stationary relative to said Photoreceptor drum.
Claim 9
Dependent Claim
80 words
A photoreceptor assembly for use in a xerographic cassette comprising: a photoreceptor drum having an interior; and a waste toner container being accessible via a waste toner conveying means, said waste toner container being positioned in the interior of said photoreceptor drum for reversible removal therefrom, wherein said waste toner container being reversibly fixable within the interior of said photoreceptor drum such that upon rotation of said photoreceptor drum, said waste toner container remains stationary relative to said Photoreceptor drum.
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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) | 2002-08-02 | 2003-02-01 | 2003-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-02 | 2007-02-01 | 2007-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-02 | 2011-02-01 | 2011-08-03 | $7700.00 | Window Closed / Lapsed |