US5138394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus with means to effectively use toner storage space
Assignee: Canon Inc
•
Filing: 1990-02-09
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Granted: 1992-08-11
•
Expires: 2010-02-09
Abstract
Abstract The present invention provides an apparatus for the handling of cleaned toner. The cleaning apparatus has a blade which removes residual toner from a photosensitive drum, a storage area partitioned into an upper and a lower section by a plate. In the preferred embodiment, a rotary device with paddles attached feeds toner to the rear of the lower section away from the cleaning blade and into the upper section. This insures the full use of the storage area. Plural rotary devices may be provided.
Inventors
- 👤 Kazushi Watanabe
- 👤 Tadayuki Tsuda
- 👤 Kazuhiko Ishiwata
- 👤 Makoto Tanaka
- 👤 Isao Ikemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:47
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/12
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
96 words
A cleaning apparatus featuring effective use of toner storage space, comprising: removing means for removing residual toner from a member to be cleaned; storage means for reserving the residual toner removed from said member to be cleaned; a partition member for dividing the interior of said storage means into upper and lower sections which communicate with each other; and feeding means disposed in the lower section of said storage means, said partition member being positioned above said feeding means, said feeding means conveying the toner in a direction from the lower section to the upper section.
Claim 2
Dependent Claim
96 words
A cleaning apparatus featuring effective use of toner storage space, comprising: removing means for removing residual toner from a member to be cleaned; storage means for reserving the residual toner removed from said member to be cleaned; a partition member for dividing the interior of said storage means into upper and lower sections which communicate with each other; and feeding means disposed in the lower section of said storage means, said partition member being positioned above said feeding means, said feeding means conveying the toner in a direction from the lower section to the upper section.
Claim 3
Dependent Claim
31 words
A cleaning apparatus according to claim 1, wherein said partition member comprises a plate and divides a portion of the interior of said storage means into said upper and lower sections.
Claim 4
Dependent Claim
35 words
A cleaning apparatus according to claim 2, wherein said partition member has a free end defining a passage through which the residual toner can move and which communicates said lower section with said upper section.
Claim 5
Dependent Claim
25 words
A cleaning apparatus according to claim 3, wherein a portion of said feeding means contacts said free end of said partition member defining said passage.
Claim 6
Dependent Claim
27 words
A cleaning apparatus according to claim 1, wherein said feeding means is positioned so as to contact an end of said partition member in a vertical direction.
Claim 7
Dependent Claim
22 words
A cleaning apparatus according to claim 5, wherein said feeding means feeds the residual toner in a direction along said partition member.
Claim 8
Dependent Claim
38 words
A cleaning apparatus according to claim 1, further comprising a second feeding means disposed proximate to said first feeding means and being provided to feed the residual toner toward the rear and upper portions of said storage means.
Claim 9
Dependent Claim
28 words
A cleaning apparatus according to claim 1, wherein said feeding means comprises a rotary member including a paddle and at least one elastic member attached to said paddle.
Claim 10
Dependent Claim
14 words
A cleaning apparatus according to claim 8, wherein said paddle comprises a prismatic member.
Claim 11
Dependent Claim
21 words
A cleaning apparatus according to claim 9, wherein said elastic member is attached to a flat side surface of said paddle.
Claim 12
Dependent Claim
22 words
The cleaning apparatus according to claim 1, wherein said partition member is positioned above at least a portion of said feeding means.
Claim 13
Dependent Claim
21 words
The cleaning apparatus according to claim 1, wherein said feeding means operates to push up the toner on said partition member.
Claim 14
Dependent Claim
32 words
The cleaning apparatus according to claim 1, wherein said feeding means is a rotational member in which flat resilient members are attached to surfaces of a shaft having a square cross section.
Claim 15
Dependent Claim
44 words
The cleaning apparatus according to claim 1, wherein said feeding means is a rotational member in which flat resilient members are attached to side surfaces of a square shaft, said resilient member abutting against an end of said partition member in every rotation thereof.
Claim 16
Dependent Claim
27 words
The cleaning apparatus according to claim 1, further comprises a second conveying means being disposed below said partition member, for conveying the toner toward said feeding means.
Claim 17
Dependent Claim
18 words
The cleaning apparatus according to claim 1, wherein said member to be cleaned is an electrophotographic photosensitive body.
Claim 18
Dependent Claim
116 words
A recording apparatus having cleaning function and effecting recording on a recording medium, comprising: an image bearing body; imaging forming means for forming an image on said image bearing body; transfer means for transferring the image formed on said image bearing body by said image forming means onto a recording medium; removal means for removing a residual toner on said image bearing body; storage means for storing the toner removed by said removal means; a partition member for partitioning the interior of said storage means into upper and lower sections which communicate with each other; and feed means, positioned below said partition member, for feeding the toner to the upper section defined by said partition member.
Claim 19
Dependent Claim
116 words
A recording apparatus having cleaning function and effecting recording on a recording medium, comprising: an image bearing body; imaging forming means for forming an image on said image bearing body; transfer means for transferring the image formed on said image bearing body by said image forming means onto a recording medium; removal means for removing a residual toner on said image bearing body; storage means for storing the toner removed by said removal means; a partition member for partitioning the interior of said storage means into upper and lower sections which communicate with each other; and feed means, positioned below said partition member, for feeding the toner to the upper section defined by said partition member.
Claim 20
Dependent Claim
17 words
The recording apparatus according to claim 17, wherein said image bearing body comprises an electrophotographic photosensitive body.
Claim 21
Dependent Claim
16 words
The recording apparatus according to claim 17, wherein said image forming means comprises an electric discharger.
Claim 22
Dependent Claim
14 words
The recording apparatus according to claim 17, wherein said image forming means comprises developer.
Claim 23
Dependent Claim
15 words
The recording apparatus according to claim 17, wherein said transfer means comprises an electric discharger.
Claim 24
Dependent Claim
15 words
The recording apparatus according to claim 17, wherein said removal means comprises a cleaning blade.
Claim 25
Dependent Claim
83 words
A cleaning apparatus for cleaning a toner from a member to be cleaned, comprising: removal means for removing the toner from the member to be cleaned; storage means for storing the toner removed from the member to be cleaned by said cleaning means; a partition member for partitioning interior of said storage means into upper and lower sections which communicate with each other; and feed means for feeding the toner from the lower section to the upper section partitioned by said partition member.
Claim 26
Dependent Claim
83 words
A cleaning apparatus for cleaning a toner from a member to be cleaned, comprising: removal means for removing the toner from the member to be cleaned; storage means for storing the toner removed from the member to be cleaned by said cleaning means; a partition member for partitioning interior of said storage means into upper and lower sections which communicate with each other; and feed means for feeding the toner from the lower section to the upper section partitioned by said partition member.
Claim 27
Dependent Claim
114 words
A recording apparatus having cleaning function and effecting recording onto a recording medium, comprising: an image bearing body; image forming means for forming an image on said image bearing body; transfer means for transferring the image formed on said image bearing body by said image forming means onto the recording medium; removal means for removing a residual toner on said image bearing body; storage means for storing the toner removed by said removal means; a partition member for partitioning interior of said storage means into upper and lower sections which communicate to each other; and feed means for feeding the toner from the lower section to the upper section partitioned by said partition member.
Claim 28
Dependent Claim
114 words
A recording apparatus having cleaning function and effecting recording onto a recording medium, comprising: an image bearing body; image forming means for forming an image on said image bearing body; transfer means for transferring the image formed on said image bearing body by said image forming means onto the recording medium; removal means for removing a residual toner on said image bearing body; storage means for storing the toner removed by said removal means; a partition member for partitioning interior of said storage means into upper and lower sections which communicate to each other; and feed means for feeding the toner from the lower section to the upper section partitioned by said partition member.
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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) | 1995-08-11 | 1996-02-10 | 1996-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-11 | 2000-02-10 | 2000-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-11 | 2004-02-10 | 2004-08-11 | $7700.00 | Window Closed / Lapsed |