US4737804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying apparatus
Assignee: Canon Inc
•
Filing: 1986-10-22
•
Granted: 1988-04-12
•
Expires: 2006-10-22
Abstract
Abstract A copying apparatus is provided with image reading device for reading image information on an original as image element signals, indicating device for indicating the area of the original to be masked in the scanning area of the original by the image reading device, mask signal formation device for reading the masked area indicated by the indicating device, by the image reading device and for forming mask signals, and recording device for controlling the image information read by the image reading devices, by the mask signals obtained by the mask signal formation device, to obtain on a recording medium a record in which the area indicated by the indicating device is masked.
Inventors
- 👤 Naoki Ayata
- 👤 Yasushi Sato
- 👤 Seiji Saito
- 👤 Noboru Koumura
- 👤 Motoharu Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:11
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03G15/605
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
A copying apparatus comprising: electrical image element signal forming means for reading an original document image by a photoelectric converting member to form electrical image element signals; memory means for storing a field of said electrical image element signals; recording means for recording an image in response to said electrical image element signals provided by said image element signal forming means and provided by said memory means; and control means for controlling, in case of multi-sheet copying, said image element signals formed by said image element signal forming means for storage in said memory means as well as being applied to said recording means for the first sheet of copying, and from the second sheet of copying on, causing said image element signals accessed from said memory means to be applied to said recording means.
Claim 2
Dependent Claim
135 words
A copying apparatus comprising: electrical image element signal forming means for reading an original document image by a photoelectric converting member to form electrical image element signals; memory means for storing a field of said electrical image element signals; recording means for recording an image in response to said electrical image element signals provided by said image element signal forming means and provided by said memory means; and control means for controlling, in case of multi-sheet copying, said image element signals formed by said image element signal forming means for storage in said memory means as well as being applied to said recording means for the first sheet of copying, and from the second sheet of copying on, causing said image element signals accessed from said memory means to be applied to said recording means.
Claim 3
Dependent Claim
26 words
A copying apparatus according to claim 1, further comprising means for setting the number of copies of the image to be recorded by said recording means.
Claim 4
Dependent Claim
35 words
A copying apparatus according to claim 2, further comprising: memory means for storing the number of copies set by said setting means, and determination means for determining whether the current copy is the first one.
Claim 5
Dependent Claim
35 words
A copying apparatus according to claim 1, wherein said memory means supplies the image signal stored therein to said recording means in accordance with timing signals associated with the recording operation of said recording means.
References Cited (Backward Citations)
US3103849A
Cited
US3698006A
Cited
US3928718A
Cited
US4009954A
Cited
US4094606A
Cited
US4106061A
Cited
US4215929A
Cited
DE2843975A1
Cited
US4155103A
Cited
US4268164A
Cited
US4325086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |