US4579446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Both-side recording system
Assignee: Canon Inc
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Filing: 1983-06-30
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Granted: 1986-04-01
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Expires: 2003-06-30
Abstract
Abstract This specification discloses a both-side recording apparatus in which a sheet conveyed by first recording means for recording an image on a first surface of the sheet is reversed by sheet reversing means and directed to second recording means for recording an image on a second surface of the sheet, whereby images are recorded on the first and second surfaces of the sheet.
Inventors
- 👤 Hitoshi Fujino
- 👤 Takashi Kitamura
- 👤 Junji Ichikawa
- 👤 Junichi Kimizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:53
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; G03G15/231; G03G15/238; G03G2215/00; G03G2215/00016; G03G2215/00021; G03G2215/20; G03G2215/207; G03G2215/2083
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
111 words
A both-side recording system for recording images on both sides of a sheet, comprising: first recording means for recording an image on a sheet; second recording means for recording an image on a sheet; first and second reversing portions connecting said first and second recording means, said first and second reversing portions being adapted to reverse a sheet on one side of which an image has been recorded by said first recording means and leading the reversed sheet to said second recording means; and selecting means for selectively leading a sheet conveyed from said first recording means after one-side recording to said first reversing portion or to said second reversing portion.
Claim 2
Dependent Claim
111 words
A both-side recording system for recording images on both sides of a sheet, comprising: first recording means for recording an image on a sheet; second recording means for recording an image on a sheet; first and second reversing portions connecting said first and second recording means, said first and second reversing portions being adapted to reverse a sheet on one side of which an image has been recorded by said first recording means and leading the reversed sheet to said second recording means; and selecting means for selectively leading a sheet conveyed from said first recording means after one-side recording to said first reversing portion or to said second reversing portion.
Claim 3
Dependent Claim
38 words
The system of claim 1, wherein said first and second reversing portions and said first and second recording means are aligned in a straight line when said reversing portions and said recording means are in position for operation.
Claim 4
Dependent Claim
24 words
The system of claim 1, wherein said selecting means leads said sheet alternately to said first reversing portion or to said second reversing portion.
Claim 5
Dependent Claim
39 words
The system of claim 1, wherein said first and second reversing portions comprise a connecting portion removably connected to a sheet discharge port of the first recording means and to a sheet entrance port of the second recording means.
Claim 6
Dependent Claim
40 words
The system of claim 1, wherein said first and second reversing portions comprise a common sheet entering port through which the sheet may enter and a common sheet discharging port through which the sheet passes toward the second recording means.
Claim 7
Dependent Claim
17 words
The system of claim 1, wherein said first reversing portion is disposed above the second reversing portion.
Claim 8
Dependent Claim
100 words
A reversing mechanism for application to a both-side image recording system for recording images on both sides of a sheet, comprising: first and second reversing means for reversing a sheet on one side of which a first image has been recorded by recording means for recording an image on a sheet; and selecting means for alternately leading the sheet passed through the recording means to said first reversing means or to said second reversing means in order to reverse the sheet having said first image recorded thereon so that a second image may be recorded on the second side thereof.
Claim 9
Dependent Claim
100 words
A reversing mechanism for application to a both-side image recording system for recording images on both sides of a sheet, comprising: first and second reversing means for reversing a sheet on one side of which a first image has been recorded by recording means for recording an image on a sheet; and selecting means for alternately leading the sheet passed through the recording means to said first reversing means or to said second reversing means in order to reverse the sheet having said first image recorded thereon so that a second image may be recorded on the second side thereof.
Claim 10
Dependent Claim
17 words
The mechanism of claim 7, wherein said first reversing means is disposed above the second reversing means.
References Cited (Backward Citations)
US3100113A
Cited
FR1394541A
Cited
DE1289491B
Cited
US3575507A
Cited
US4236814A
Cited
US4385756A
Cited
JPS5922847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |