US4568173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus
Assignee: Toshiba Corp
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Filing: 1984-12-13
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Granted: 1986-02-04
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Expires: 2004-12-13
Abstract
Abstract There is provided a copying machine in which a copying magnification and a copying density are variable. When the operation mode is set in the check mode and a copying start key is depressed, a document is copied once at a predetermined copying magnification or copying density. Thereafter, the copying magnification or the copying density is automatically changed, and the copying operation of the document is performed again. The above-mentioned operation is repeated until the copying operations at all the copying magnifications or the copying densities are completed.
Inventors
- 👤 Yasuo Abuyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:35
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/55; G03G15/50; G03G15/5016; G03G15/502
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
113 words
An image forming apparatus comprising: image forming means, responsive to an image signal and an instruction signal, for forming an image on an image forming medium in accordance with an image forming instruction; designating means for generating a start signal which designates the start of a checking operation in accordance with an operation of an operating member; and instruction changing means for supplying one instruction signal in accordance with the start signal from said designating means, and when the image is formed in accordance with the image forming instruction, for sequentially supplying other instruction signals to said image forming means until all the instruction signals have been supplied to said image forming means.
Claim 2
Dependent Claim
113 words
An image forming apparatus comprising: image forming means, responsive to an image signal and an instruction signal, for forming an image on an image forming medium in accordance with an image forming instruction; designating means for generating a start signal which designates the start of a checking operation in accordance with an operation of an operating member; and instruction changing means for supplying one instruction signal in accordance with the start signal from said designating means, and when the image is formed in accordance with the image forming instruction, for sequentially supplying other instruction signals to said image forming means until all the instruction signals have been supplied to said image forming means.
Claim 3
Dependent Claim
21 words
An apparatus according to claim 1, in which the image forming instruction is a magnification of the image to be formed.
Claim 4
Dependent Claim
21 words
An apparatus according to claim 1, in which the image forming instruction is a density of the image to be formed.
Claim 5
Dependent Claim
34 words
An apparatus according to claim 1, in which said designating means serves as image forming designating means and selectively generates one of a check start designating signal and a normal image forming designating signal.
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) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |