US4947206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying apparatus
Assignee: Minolta Co Ltd
•
Filing: 1988-12-22
•
Granted: 1990-08-07
•
Expires: 2008-12-22
Abstract
Abstract A copying apparatus has a paper size automatic selection function for automatically selecting papers of any desired size in a plurality of available sizes. The copying apparatus is provided with a plurality of paper supply cassettes each accommodating a plurality of copy papers, an original size detector sensor for detecting the size of an original document to be copied, a plurality of copy paper size detector switches for detecting the size of the copy papers accommodated in the paper supply cassettes, a plurality of magnification setting keys for setting a desired magnification ratio, a plurality of reference tables, a plurality of selector switches for selecting a desired reference table in accordance with the detected size of the original document and a control system. Each of the reference tables indicates the relationship among sizes of original documents, magnification ratios and sizes of copy papers. The control system includes a plurality of microprocessors for determining the size of copy papers appropriate to the detected size of the original document to be copied and the selected magnification ratio on the basis of the selected reference table so that the copy papers of the desired size may be supplied from the selected paper supply cassette.
Inventors
- 👤 Masazumi Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:55
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/5095
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
256 words
A copying apparatus having a paper size automatic selection function for automatically selecting papers of any desired size in a plurality of available sizes, said copying apparatus comprising: a photosensitive member; an image forming means for forming an image of an original document on said photosensitive member to transfer the image onto a copy paper; a plurality of paper supply means each accommodating a plurality of copy papers for supplying the copy papers one at a time to said image forming means; an original size detecting means for detecting the size of the original document to be copied; a copy paper size detecting means for detecting the size of the copy papers accommodated in said paper supply means; a magnification selecting means for selecting a desired magnification ratio; a first reference table for indicating a relationship among sizes of original documents based on an inch system of unit, magnification ratios and sizes of copy papers based on the inch system of unit; a second reference table for indicating a relationship among sizes of original documents based on a metric system of unit, magnification ratios and sizes of copy papers based on the metric system of unit; a table selecting means for selecting either one of said reference tables; and a control means for determining the size of copy papers appropriate to the detected size of the original document and the selected magnification ratio on the basis of the selected reference table to thereby select the paper supply means accommodating the copy papers of the desired size.
Claim 2
Dependent Claim
256 words
A copying apparatus having a paper size automatic selection function for automatically selecting papers of any desired size in a plurality of available sizes, said copying apparatus comprising: a photosensitive member; an image forming means for forming an image of an original document on said photosensitive member to transfer the image onto a copy paper; a plurality of paper supply means each accommodating a plurality of copy papers for supplying the copy papers one at a time to said image forming means; an original size detecting means for detecting the size of the original document to be copied; a copy paper size detecting means for detecting the size of the copy papers accommodated in said paper supply means; a magnification selecting means for selecting a desired magnification ratio; a first reference table for indicating a relationship among sizes of original documents based on an inch system of unit, magnification ratios and sizes of copy papers based on the inch system of unit; a second reference table for indicating a relationship among sizes of original documents based on a metric system of unit, magnification ratios and sizes of copy papers based on the metric system of unit; a table selecting means for selecting either one of said reference tables; and a control means for determining the size of copy papers appropriate to the detected size of the original document and the selected magnification ratio on the basis of the selected reference table to thereby select the paper supply means accommodating the copy papers of the desired size.
Claim 3
Dependent Claim
24 words
The copying apparatus according to claim 1, wherein said table selecting means comprises a manual switch to be operated for selecting a desired table.
Claim 4
Dependent Claim
26 words
The copying apparatus according to claim 1, wherein said table selecting means selects a desired table in accordance with the detected size of the original document.
Claim 5
Dependent Claim
55 words
The copying apparatus according to claim 3, wherein said table selecting means selects said first reference table when the detected size of the original document is based on the inch system of unit and selects said second reference table when the detected size of the original document is based on the metric system of unit.
Claim 6
Dependent Claim
26 words
The copying apparatus according to claim 1, wherein said table selecting means selects a desired table in accordance with the detected size of the copy paper.
Claim 7
Dependent Claim
39 words
The copying apparatus according to claim 5, wherein said table selecting means selects said first reference table when all the sizes of the copy papers accommodated in said paper supply means are based on the inch system of unit.
Claim 8
Dependent Claim
39 words
The copying apparatus according to claim 5, wherein said table selecting means selects said second reference table when all the sizes of the copy papers accommodated in said paper supply means are based on the metric system of unit.
Claim 9
Dependent Claim
49 words
The copying apparatus according to claim 1, further comprising a third reference table for indicating a relationship among sizes of original documents based on the inch and metric systems of unit, the magnification ratios and sizes of the copy papers based on the inch and metric systems of unit.
Claim 10
Dependent Claim
46 words
The copying apparatus according to claim 8, wherein said table selecting means selects said third reference table when both of the copy papers based on the inch system of unit and those based on the metric system of unit are accommodated in said paper supply means.
Claim 11
Dependent Claim
217 words
A copying apparatus having a paper size automatic selection function for automatically selecting papers of any desired size in a plurality of available sizes, said copying apparatus comprising: a photosensitive member; an image forming means for forming an image of an original document on said photosensitive member to transfer the image onto a copy paper; a plurality of paper supply means each accommodating a plurality of copy papers for supplying the copy papers one at a time to said image forming means; an original size detecting means for detecting the size of the original document to be copied; a copy paper size detecting means for detecting the size of the copy papers accommodated in said paper supply means; a magnification selecting means for selecting a desired magnification ratio; a plurality of reference tables for indicating respective relationships among sizes of original documents, magnification ratios and sizes of copy papers; a table selecting means for selecting a desired reference table in accordance with the detected size of the original document; and a control means for determining the size of copy papers appropriate to the detected size of the original document and the selected magnification ratio on the basis of the selected reference table to thereby select the paper supply means accommodating the copy papers of the desired size.
Claim 12
Dependent Claim
217 words
A copying apparatus having a paper size automatic selection function for automatically selecting papers of any desired size in a plurality of available sizes, said copying apparatus comprising: a photosensitive member; an image forming means for forming an image of an original document on said photosensitive member to transfer the image onto a copy paper; a plurality of paper supply means each accommodating a plurality of copy papers for supplying the copy papers one at a time to said image forming means; an original size detecting means for detecting the size of the original document to be copied; a copy paper size detecting means for detecting the size of the copy papers accommodated in said paper supply means; a magnification selecting means for selecting a desired magnification ratio; a plurality of reference tables for indicating respective relationships among sizes of original documents, magnification ratios and sizes of copy papers; a table selecting means for selecting a desired reference table in accordance with the detected size of the original document; and a control means for determining the size of copy papers appropriate to the detected size of the original document and the selected magnification ratio on the basis of the selected reference table to thereby select the paper supply means accommodating the copy papers of the desired size.
Claim 13
Dependent Claim
217 words
A copying apparatus having a paper size automatic selection function for automatically selecting papers of any desired size in a plurality of available sizes, said copying apparatus comprising: a photosensitive member; an image forming means for forming an image of an original document on said photosensitive member to transfer the image onto a copy paper; a plurality of paper supply means each accommodating a plurality of copy papers for supplying the copy papers one at a time to said image forming means; an original size detecting means for detecting the size of the original document to be copied; a copy paper size detecting means for detecting the size of the copy papers accommodated in said paper supply means; a magnification selecting means for selecting a desired magnification ratio; a plurality of reference tables for indicating respective relationships among sizes of original documents, magnification ratios and sizes of copy papers; a table selecting means for selecting a desired reference table in accordance with the detected size of the copy paper; and a control means for determining the size of copy papers appropriate to the detected size of the original document and the selected magnification ratio on the basis of the selected reference table to thereby select the paper supply means accommodating the copy papers of the desired size.
Claim 14
Dependent Claim
217 words
A copying apparatus having a paper size automatic selection function for automatically selecting papers of any desired size in a plurality of available sizes, said copying apparatus comprising: a photosensitive member; an image forming means for forming an image of an original document on said photosensitive member to transfer the image onto a copy paper; a plurality of paper supply means each accommodating a plurality of copy papers for supplying the copy papers one at a time to said image forming means; an original size detecting means for detecting the size of the original document to be copied; a copy paper size detecting means for detecting the size of the copy papers accommodated in said paper supply means; a magnification selecting means for selecting a desired magnification ratio; a plurality of reference tables for indicating respective relationships among sizes of original documents, magnification ratios and sizes of copy papers; a table selecting means for selecting a desired reference table in accordance with the detected size of the copy paper; and a control means for determining the size of copy papers appropriate to the detected size of the original document and the selected magnification ratio on the basis of the selected reference table to thereby select the paper supply means accommodating the copy papers of the desired size.
References Cited (Backward Citations)
US3288459A
Cited
US3684373A
Cited
US3689143A
Cited
US4108427A
Cited
US4052054A
Cited
US4277165A
Cited
US4455081A
Cited
US4277163A
Cited
US4440487A
Cited
US4505579A
Cited
US4537497A
Cited
US4775139A
Cited
US4669858A
Cited
US4575227A
Cited
US4595273A
Cited
US4607946A
Cited
JPS602942A
Cited
JPS6084945A
Cited
JPS6093463A
Cited
US4721381A
Cited
US4615610A
Cited
US4647188A
Cited
US4634263A
Cited
JPS61196263A
Cited
US4796056A
Cited
US4814825A
Cited
US4772921A
Cited
US4809050A
Cited
US4831413A
Cited
US4771319A
Cited
US4727401A
Cited
US4777511A
Cited
US4731637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |