Patent US4618252A successfully refreshed from Google Patents.
US4618252A
Expired / Lapsed
US
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Copying machine with a variable magnification device
Assignee: Kyocera Mita Industrial Co Ltd
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Filing: 1985-03-22
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Granted: 1986-10-21
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Expires: 2005-03-22
Abstract
Abstract A copying machine with a variable magnification device comprising two paper cassettes mounted in a drawable manner in vertically spaced relation and a select key for the paper cassettes, wherein the desired cassette can be selected as a source of the copying paper by operating the select key. The upper paper cassette is provided with the copying paper for variable magnification copying, and the upper cassette is automatically selected as the paper source when a detector indicates that the variable magnification copying mode has been selected.
Inventors
- 👤 Masahiko Hisajima
- 👤 Yutaka Shigemura
- 👤 Yoshinori Makiura
- 👤 Mitsuya Ishito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:32
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/65; G03G15/6502; G03G15/6508
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
A copying machine which has a variable magnification device and is operable in a variable magnification copying mode, comprising two paper cassettes mounted in a drawable manner in vertically spaced relation so that there is an upper cassette and a lower cassette, wherein a desired paper cassette can be selected by a select key for the paper cassette as the source of copying paper for the machine, characterized in that there are provided a detection means for detecting when said variable magnification copying mode has been selected, said detection means being operable to provide a signal when said variable magnification copying mode has been selected, and, a cassette selection means for selecting an upper paper cassettte as the source of the copying paper, said selection means being operable automatically to select the upper cassette in response to said signal from the detection means showing that the variable magnification copying mode has been selected.
Claim 2
Dependent Claim
153 words
A copying machine which has a variable magnification device and is operable in a variable magnification copying mode, comprising two paper cassettes mounted in a drawable manner in vertically spaced relation so that there is an upper cassette and a lower cassette, wherein a desired paper cassette can be selected by a select key for the paper cassette as the source of copying paper for the machine, characterized in that there are provided a detection means for detecting when said variable magnification copying mode has been selected, said detection means being operable to provide a signal when said variable magnification copying mode has been selected, and, a cassette selection means for selecting an upper paper cassettte as the source of the copying paper, said selection means being operable automatically to select the upper cassette in response to said signal from the detection means showing that the variable magnification copying mode has been selected.
Claim 3
Dependent Claim
38 words
A copying machine with a variable magnification device according to claim 1, wherein an upper cassette is for a longitudinal feeding of the copying paper and a lower cassette is for a lateral feeding of the copying paper.
Claim 4
Dependent Claim
20 words
A copying machine with a variable magnification device according to claim 1, wherein a selection means comprises a D flip-flop.
Claim 5
Dependent Claim
80 words
A copying machine with a variable magnification device according to claim 1, comprising a detection means for detecting an initial stage of the power supply and a standstill condition for the fixed period of time, and a selection means for selecting a lower paper cassette as the source of the copying paper by the signal from the detection means showing the initial stage of the power supply and the standstill condition for the fixed period of time as an input.
Claim 6
Dependent Claim
45 words
A copying machine with a variable magnification device according to claim 4, wherein a selection means for selecting the upper paper cassette and another for selecting the lower paper cassette as the feeding side of the copying paper are comprised in a common D flip-flop.
References Cited (Backward Citations)
US4222660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |