US5005055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying apparatus provided with automatic document feeder
Assignee: Minolta Co Ltd
•
Filing: 1989-10-27
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Granted: 1991-04-02
•
Expires: 2009-10-27
Abstract
Abstract A copy apparatus provided with an automatic document feeder having a function for sequentially feeding a pair of documents and serially placing them onto a platen in the document feeding direction. In the copying apparatus, the image forming operation is inhibited when the sizes of a pair of documents are different, the size of a first document is larger than the half of the platen, either of document is a size where the longer side thereof in parallel to the longer side of the platen, either of document size is a larger than the half of the platen, the value calculated by adding the size of a first document and the minimum size of document transportable is larger than the size of the platen, or the value calculated by adding the size of a first and second documents is larger than the size of the platen. In the above conditions, the copying apparatus is capable of discharging the documents from the platen.
Inventors
- 👤 Hirokazu Matsuo
- 👤 Hiroyasu Nagato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:31
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/5095; G03G15/60; G03G2215/00; G03G2215/00172; G03G2215/00177; G03G2215/00181; G03G2215/00185; G03G2215/00206; G03G2215/0021; G03G2215/00215; G03G2215/00324; G03G2215/00329; G03G2215/00341; G03G2215/0035
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
108 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction, said transporting means including detect means for detecting the sizes of the documents fed by said transporting means; illuminating means for illuminating the pair of original documents on the platen; image forming means for copying the images of the documents which were serially placed on said platen and illuminated by said illuminating means to a copy sheet; and inhibition means for inhibiting the illuminating operation as well as the image forming operation when the sizes of the pair of documents are different.
Claim 2
Dependent Claim
108 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction, said transporting means including detect means for detecting the sizes of the documents fed by said transporting means; illuminating means for illuminating the pair of original documents on the platen; image forming means for copying the images of the documents which were serially placed on said platen and illuminated by said illuminating means to a copy sheet; and inhibition means for inhibiting the illuminating operation as well as the image forming operation when the sizes of the pair of documents are different.
Claim 3
Dependent Claim
97 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the images of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; inhibition means for inhibiting the image forming operation when the sizes of the pair of documents are different; and means for discharging the pair of documents from said platen when the sizes of the pair of documents are different.
Claim 4
Dependent Claim
97 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the images of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; inhibition means for inhibiting the image forming operation when the sizes of the pair of documents are different; and means for discharging the pair of documents from said platen when the sizes of the pair of documents are different.
Claim 5
Dependent Claim
82 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents bed by said transporting means; and inhibition means for inhibiting the image forming operation when the size of a first document is larger than the half of said platen.
Claim 6
Dependent Claim
82 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents bed by said transporting means; and inhibition means for inhibiting the image forming operation when the size of a first document is larger than the half of said platen.
Claim 7
Dependent Claim
39 words
A copying apparatus as claimed in claim 3, wherein said inhibition means further inhibits the operation of feeding a second document onto said platen when the size of a first document is larger than the half of said platen.
Claim 8
Dependent Claim
34 words
A copying apparatus as claimed in claim 4, further comprises means for discharging a first document from said platen when the size of the first document is larger than the half of said platen.
Claim 9
Dependent Claim
105 words
A copying apparatus comprising: a rectangular platen; transporting means for operating in a mode where a pair of original documents are sequentially fed through the shorter side of a platen onto it and serially placed on said platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the image forming operation when either of document is a size where the longer side thereof in parallel to the longer side of said platen.
Claim 10
Dependent Claim
105 words
A copying apparatus comprising: a rectangular platen; transporting means for operating in a mode where a pair of original documents are sequentially fed through the shorter side of a platen onto it and serially placed on said platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the image forming operation when either of document is a size where the longer side thereof in parallel to the longer side of said platen.
Claim 11
Dependent Claim
45 words
A copying apparatus as claimed in claim 6, wherein said inhibition means further inhibits the operation of feeding a second document onto said platen when a first document is a size where the longer side thereof in Parallel to the longer side of said platen.
Claim 12
Dependent Claim
40 words
A copying apparatus as claimed in claim 7, further comprises means for discharging a first document from said platen when the first document is a size where the longer side thereof in parallel to the longer side of said platen.
Claim 13
Dependent Claim
41 words
A copying apparatus as claimed in claim 8, wherein said discharge means discharges a pair of documents from said platen when a second document is a size where the longer side thereof in parallel to the longer side of said platen.
Claim 14
Dependent Claim
81 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to one copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the image forming operation when either of document size is a larger than the half of said platen.
Claim 15
Dependent Claim
81 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to one copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the image forming operation when either of document size is a larger than the half of said platen.
Claim 16
Dependent Claim
39 words
A copying apparatus as claimed in claim 10, wherein said inhibition means further inhibits the operation of feeding a second document onto said platen when the size of a first document is larger than the half of said platen.
Claim 17
Dependent Claim
34 words
A copying apparatus as claimed in claim 11, further comprises means for discharging a first document from said platen when the size of the first document is larger than the half of said platen.
Claim 18
Dependent Claim
35 words
A copying apparatus as claimed in claim 12, wherein said discharge means discharges a pair of documents from said platen when the size of a second document is larger than the half of said platen.
Claim 19
Dependent Claim
104 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the operation of feeding a second document onto said platen when the value calculated by adding the size of a first document and the minimum size of document transportable by said transporting means is larger than the size of said platen.
Claim 20
Dependent Claim
104 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the operation of feeding a second document onto said platen when the value calculated by adding the size of a first document and the minimum size of document transportable by said transporting means is larger than the size of said platen.
Claim 21
Dependent Claim
48 words
A copying apparatus as claimed in claim 14, wherein said inhibition means further inhibits the image forming operation when the value calculated adding the size of a first document and the minimum size of document transportable by said transport means is larger than the size of said platen.
Claim 22
Dependent Claim
49 words
A copying apparatus as claimed in claim 15, further comprises means for discharging a first document from said platen when the value calculated by adding the size of the first document and the minimum size of document transportable by transport means is larger than the size of said platen.
Claim 23
Dependent Claim
89 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the image forming operation when the value calculated by adding the size of a first and second documents is larger than the size of said platen.
Claim 24
Dependent Claim
89 words
A copying apparatus comprising: transporting means for sequentially feeding a pair of original documents and serially placing them onto a platen in the document feeding direction; image forming means for copying the image of the documents serially placed on said platen to a copy sheet; detect means for detecting the sizes of documents fed by said transporting means; and inhibition means for inhibiting the image forming operation when the value calculated by adding the size of a first and second documents is larger than the size of said platen.
Claim 25
Dependent Claim
42 words
A copying apparatus as claimed in claim 17, further comprises means for discharging a pair of documents from said platen when the value calculated by adding the sizes of the first and second documents is larger than the size of said platen.
Claim 26
Independent Claim
114 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when the sizes of the pair of documents are different.
Claim 27
Independent Claim
114 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when the sizes of the pair of documents are different.
Claim 28
Independent Claim
118 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents to the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when the size of the first document is larger than half of said platen.
Claim 29
Independent Claim
118 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents to the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when the size of the first document is larger than half of said platen.
Claim 30
Independent Claim
124 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when either one of the documents is placed with its longer side parallel to the longer side of said platen.
Claim 31
Independent Claim
124 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when either one of the documents is placed with its longer side parallel to the longer side of said platen.
Claim 32
Independent Claim
117 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when either one of the documents is larger than half of said platen.
Claim 33
Independent Claim
117 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when either one of the documents is larger than half of said platen.
Claim 34
Independent Claim
136 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen, and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the feeding operation of the second document onto the platen when the value calculated by adding the size of a first document and the minimum size of document transportable by said document feeding means is larger than the size of said platen.
Claim 35
Independent Claim
136 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen, and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the feeding operation of the second document onto the platen when the value calculated by adding the size of a first document and the minimum size of document transportable by said document feeding means is larger than the size of said platen.
Claim 36
Independent Claim
128 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the image of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when the value calculated by adding the size of a first document and a second document is larger than the size of said platen.
Claim 37
Independent Claim
128 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the image of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the sizes of the documents being fed by said document feeding means; and inhibiting the illuminating operation as well as the image forming operation when the value calculated by adding the size of a first document and a second document is larger than the size of said platen.
Claim 38
Independent Claim
116 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the size of the documents being fed by said document feeding means before the documents are placed on the platen; and inhibiting the image forming operation when the sizes of the pair of documents are different.
Claim 39
Independent Claim
116 words
A method of operating a copying apparatus including a document feeding means for feeding and placing original documents onto a platen, means for illuminating the original documents on the platen and image forming means for copying the images of the original documents which were placed on the platen and illuminated by the illuminating means, the method comprising the steps of: sequentially feeding a pair of original documents and serially placing them onto the platen in the document feeding direction; detecting the size of the documents being fed by said document feeding means before the documents are placed on the platen; and inhibiting the image forming operation when the sizes of the pair of documents are different.
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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) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |