US4437756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-side image forming apparatus
Assignee: Canon Inc
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Filing: 1982-07-28
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Granted: 1984-03-20
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Expires: 2002-07-28
Abstract
Abstract A double-side image forming apparatus has input unit for entering the number of desired image formation for forming images on both faces of a sheet-shaped image bearing member and a storage section for storing said image bearing member after image formation on a first face thereof. The apparatus is adapted, when the image formation on the first face of said image bearing members is interrupted before the completion of said desired number of image formations, to conduct in continuation the image formation on the second face of the image bearing members stored in said storage section.
Inventors
- 👤 Kazuo Kawakubo
- 👤 Katsushi Furuichi
- 👤 Kiyokazu Namekata
- 👤 Hidetoshi Tanaka
- 👤 Yashikuni Tohyama
- 👤 Toshirou Kasamura
- 👤 Tomohiro Aoki
- 👤 Toshio Honma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:47
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; G03G15/231; G03G15/232; G03G15/234
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
164 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on both faces of sheet-shaped image bearing members; means for storing said image bearing members having an image on a first face thereof; means for selecting the number of image bearing members to be subjected to said image formation; and control means for effecting image formation by said image forming means in a first mode on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode on the second face of each of said selected image bearing members; wherein said control means is adapted, in response to a particular signal received during said first mode and before the number of image formations reaches said selected number, to effect image formation in the second mode on the image bearing members stored in said storage means.
Claim 2
Dependent Claim
164 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on both faces of sheet-shaped image bearing members; means for storing said image bearing members having an image on a first face thereof; means for selecting the number of image bearing members to be subjected to said image formation; and control means for effecting image formation by said image forming means in a first mode on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode on the second face of each of said selected image bearing members; wherein said control means is adapted, in response to a particular signal received during said first mode and before the number of image formations reaches said selected number, to effect image formation in the second mode on the image bearing members stored in said storage means.
Claim 3
Dependent Claim
32 words
A double-side image forming apparatus according to the claim 1, wherein said control means automatically enables image formations in said first mode after the completion of image formation in said second mode.
Claim 4
Dependent Claim
52 words
A double-side image forming apparatus according to the claim 1, wherein the number of image bearing members stored in said storage means at the receipt of said particular signal in the course of image formation in the first mode is taken as the selected number of image formations in the second mode.
Claim 5
Dependent Claim
27 words
A double-side image forming apparatus according to the claim 2, wherein said particular signal indicates the absence of said image bearing members in a supply station therefor.
Claim 6
Dependent Claim
55 words
A double-side image forming apparatus according to the claim 4, capable of effecting image formations corresponding to the difference between said selected number and the number of actually effected image formations, after the completion of image formations in the second mode in response to the replenishment of image bearing members in said supply station therefor.
Claim 7
Dependent Claim
236 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on sheet-shaped image bearing members; means for selecting the number of image bearing members to be subjected to said image formation; means for selectively assigning a copying mode in which an image formation is performed on the image bearing members, said mode assigning means being capable of assigning different copying modes according to whether image formation is performed on a first-face or a second-face of the image bearing members; means for storing said image bearing members having an image on a first face thereof; and control means for effecting image formation by said image forming means in a first mode assigned by said assigning means on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode assigned by said assigning means on the second face of each of said selected image bearing members; wherein said control means is adapted, in response to reception of a particular signal received during the image formation in said second made, to interrupt the image formation, to effect image formation in said second mode on the image bearing members stored in said storage means after the image formation is restarted, and to enable the image formation in said first mode thereafter.
Claim 8
Dependent Claim
236 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on sheet-shaped image bearing members; means for selecting the number of image bearing members to be subjected to said image formation; means for selectively assigning a copying mode in which an image formation is performed on the image bearing members, said mode assigning means being capable of assigning different copying modes according to whether image formation is performed on a first-face or a second-face of the image bearing members; means for storing said image bearing members having an image on a first face thereof; and control means for effecting image formation by said image forming means in a first mode assigned by said assigning means on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode assigned by said assigning means on the second face of each of said selected image bearing members; wherein said control means is adapted, in response to reception of a particular signal received during the image formation in said second made, to interrupt the image formation, to effect image formation in said second mode on the image bearing members stored in said storage means after the image formation is restarted, and to enable the image formation in said first mode thereafter.
Claim 9
Dependent Claim
36 words
A double-side image forming apparatus according to the claim 6, wherein said control means is adapted to retain said selected number and the number of already effected image formations at the receipt of said particular signal.
Claim 10
Dependent Claim
22 words
A double-side image forming apparatus according to the claim 6, wherein said particular signal indicates a jamming of said image bearing member.
Claim 11
Dependent Claim
48 words
A double-side image forming apparatus according to the claim 6, wherein said control means is adapted, after completion of the image formations on the image bearing members stored in said storage means, to enable image formation in the first mode for filling any deficiency caused by said jamming.
Claim 12
Dependent Claim
33 words
A double-side image forming apparatus according to the claim 9, wherein said control means is adapted, in said first mode, to effect the image formations only for such deficiency caused by said jamming.
Claim 13
Dependent Claim
20 words
A double-side image forming apparatus according to claim 6, wherein said mode assigning means assigns a multiplication of copy size.
Claim 14
Dependent Claim
18 words
A double-side image forming apparatus according to claim 6, wherein said mode assigning means assigns a density value.
Claim 15
Dependent Claim
26 words
A double-side image forming apparatus according to claim 6, further comprising supply sources of image bearing members, wherein said mode assigning means assigns said supply sources.
Claim 16
Dependent Claim
39 words
A double-side image forming apparatus according to claim 6, wherein said control means stores the first or second mode assigned by said mode assigning means and recovers automatically to the stored first mode after interruption during the second mode.
Claim 17
Dependent Claim
209 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on sheet-shaped image bearing members; means for selecting the number of image bearing members to be subjected to said image formation; means for selectively assigning a copying mode when an image formation is performed on the image bearing members, said mode assigning means being capable of assigning different copying modes according to whether image formation is performed on a first-face or a second-face of the image bearing members; means for storing said image bearing members having an image on a first face thereof; and control means for effecting image formation by said image forming means in a first mode assigned by said assigning means on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode assigned by said assigning means on the second face of each of said selected image bearing members; wherein said control means stores the first mode assigned by said mode assigning means and recovers automatically to said stored first mode at the time of restarting of image formation on the first-face of image bearing members.
Claim 18
Dependent Claim
209 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on sheet-shaped image bearing members; means for selecting the number of image bearing members to be subjected to said image formation; means for selectively assigning a copying mode when an image formation is performed on the image bearing members, said mode assigning means being capable of assigning different copying modes according to whether image formation is performed on a first-face or a second-face of the image bearing members; means for storing said image bearing members having an image on a first face thereof; and control means for effecting image formation by said image forming means in a first mode assigned by said assigning means on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode assigned by said assigning means on the second face of each of said selected image bearing members; wherein said control means stores the first mode assigned by said mode assigning means and recovers automatically to said stored first mode at the time of restarting of image formation on the first-face of image bearing members.
Claim 19
Dependent Claim
25 words
A double-side image forming apparatus according to claim 15, wherein said restarting of image formation is first-face processing fills the deficiency caused by a jamming.
Claim 20
Dependent Claim
217 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on sheet-shaped image bearing members; means for selecting the number of image bearing members to be subjected to said image formation; means for selectively assigning a copying mode in which an image formation is performed on the image bearing members, said mode assigning means being capable of assigning different copying modes according to whether image formation is performed on a first-face or a second-face of the image bearing members; means for storing said image bearing members having an image on a first face thereof; and control means for effecting image formation by said image forming means in a first mode assigned by said assigning means on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode assigned by said assigning means on the second face of each of said selected image bearing members; wherein said control means is adapted, in response to reception of a particular signal received during the image formation in said second mode, to interrupt the image formation and to enable the image formation on the first-face to restart in said assigned first mode.
Claim 21
Dependent Claim
217 words
A double-side image forming apparatus, comprising: image forming means for effecting image formation on sheet-shaped image bearing members; means for selecting the number of image bearing members to be subjected to said image formation; means for selectively assigning a copying mode in which an image formation is performed on the image bearing members, said mode assigning means being capable of assigning different copying modes according to whether image formation is performed on a first-face or a second-face of the image bearing members; means for storing said image bearing members having an image on a first face thereof; and control means for effecting image formation by said image forming means in a first mode assigned by said assigning means on the first face of each of said selected image bearing members, then temporarily storing said selected image bearing members in said storage means, and for effecting image formation by said image forming means in a second mode assigned by said assigning means on the second face of each of said selected image bearing members; wherein said control means is adapted, in response to reception of a particular signal received during the image formation in said second mode, to interrupt the image formation and to enable the image formation on the first-face to restart in said assigned first mode.
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) | 1987-03-20 | 1987-09-19 | 1988-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-20 | 1991-09-19 | 1992-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-20 | 1995-09-19 | 1996-03-20 | $7700.00 | Window Closed / Lapsed |