US4819019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording apparatus
Assignee: Toshiba Corp
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Filing: 1987-01-30
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Granted: 1989-04-04
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Expires: 2007-01-30
Abstract
Abstract A recording apparatus according to the present invention in which a data is recorded by charging a drived recording medium, scanning laser beams on the drived recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprises a charger for charging the drived recording medium; and at least two image forming device disposed around the recording medium for recording multi-colored and/or uni-colored data in a plurality of print modes. In the recording apparatus, the print modes is controlled so as to drive the second image forming device corresponding to the second print mode after the operation of the first print mode is closed, when the second print mode is designated in the operation of the first image forming means corresponding to the first print mode. And, the driver for driving the recording medium is controlled so as to continuously drive the recording medium when the first print mode is switched to the second print mode by the switching device. The image forming device comprises device for forming an electrostatic latent image on the recording medium by scanning laser beams in accordance with the recording data and device for developing the electrostatic latent image.
Inventors
- 👤 Jiro Egawa
- 👤 Naruhito Yoshida
- 👤 Toshihiro Kasai
- 👤 Moriya Nagasawa
- 👤 Naoaki Ide
- 👤 Hironobu Machida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:00
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/01; G03G15/06; G03G15/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
174 words
A recording apparatus in which data is recorded by charging a moving recording medium, irradiating laser beams on the moving recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprising: means for charging the moving recording medium; at least two image forming means, each for forming electrostatic latent images, on the recording medium in accordance with the data to be recorded, and for developing the formed electrostatic latent images, including a first image forming means operating during a first image forming mode, and a second image forming means operating during a second image forming mode; means for detecting when one of said image forming means stops operating; and means for commanding operations of said first and second image forming means, such that said first image forming mode is automatically switched to said second image forming mode when said first image forming means stops operating, and said second image forming mode is automatically switched to the first image forming mode when said second image forming means stops operating.
Claim 2
Dependent Claim
174 words
A recording apparatus in which data is recorded by charging a moving recording medium, irradiating laser beams on the moving recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprising: means for charging the moving recording medium; at least two image forming means, each for forming electrostatic latent images, on the recording medium in accordance with the data to be recorded, and for developing the formed electrostatic latent images, including a first image forming means operating during a first image forming mode, and a second image forming means operating during a second image forming mode; means for detecting when one of said image forming means stops operating; and means for commanding operations of said first and second image forming means, such that said first image forming mode is automatically switched to said second image forming mode when said first image forming means stops operating, and said second image forming mode is automatically switched to the first image forming mode when said second image forming means stops operating.
Claim 3
Dependent Claim
61 words
The recording apparatus as claimed in claim 1, wherein each of said image forming means includes a developing unit for developing the electrostatic latent image with a toner, said stop operating occurring when the toner within the respective developing unit is depleted, and said stop condition detecting means comprises a toner quantity detecting device for detecting the termination of the toner.
Claim 4
Dependent Claim
181 words
A recording apparatus in which data is recorded by charging a moving recording medium, irradiating laser beams on the moving recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprising: means for charging the moving recording medium; first and second image forming means for forming electrostatic latent images on the moving recording medium in accordance with the data to be recorded and for developing the formed electrostatic latent image using a toner; means for detecting a termination of supply of toner to one of said first and second image forming means; means for driving said first and second image forming means such that a first print mode, in which said first image forming means is driven, is automatically switched to a second print mode, in which said second image forming means is driven, when said termination of the toner of said first image forming means is detected, and the second print mode is automatically switched to the first print mode when the termination of the toner of said second image forming means is detected.
Claim 5
Dependent Claim
181 words
A recording apparatus in which data is recorded by charging a moving recording medium, irradiating laser beams on the moving recording medium to form electrostatic latent images thereon, and developing and transferring the electrostatic latent image, comprising: means for charging the moving recording medium; first and second image forming means for forming electrostatic latent images on the moving recording medium in accordance with the data to be recorded and for developing the formed electrostatic latent image using a toner; means for detecting a termination of supply of toner to one of said first and second image forming means; means for driving said first and second image forming means such that a first print mode, in which said first image forming means is driven, is automatically switched to a second print mode, in which said second image forming means is driven, when said termination of the toner of said first image forming means is detected, and the second print mode is automatically switched to the first print mode when the termination of the toner of said second image forming means is detected.
Claim 6
Dependent Claim
21 words
The recording apparatus as claimed in claim 3, wherein said first and second image forming means have a same color toner.
Claim 7
Dependent Claim
214 words
A recording apparatus in which data is recorded by charging a moving recording medium, irradiating laser beams on the moving recording medium to form electrostatic latent images thereon, developing the formed electrostatic latent image, and transferring the developed image to a plurality of recording members, comprising: means for charging the moving recording medium; first and second image forming means for forming electrostatic latent images on the moving recording medium in accordance with the data to be recorded and for developing the formed electrostatic latent image with a toner; means for transferring the developed image to the plurality of recording members; means for driving said first and second image forming means, and said transferring means such that a first print mode, in which the data is recorded to one of the recording members by said first image forming means and said transferring means, is switched to a second print mode, in which the data is recorded on another recording member by said image forming means when a predetermined occurrence is detected; and means for successively moving the recording medium relative to said first and second image forming means so as to achieve a successive recording of the data onto the other recording member when the first print mode is switched to the second print mode.
Claim 8
Dependent Claim
214 words
A recording apparatus in which data is recorded by charging a moving recording medium, irradiating laser beams on the moving recording medium to form electrostatic latent images thereon, developing the formed electrostatic latent image, and transferring the developed image to a plurality of recording members, comprising: means for charging the moving recording medium; first and second image forming means for forming electrostatic latent images on the moving recording medium in accordance with the data to be recorded and for developing the formed electrostatic latent image with a toner; means for transferring the developed image to the plurality of recording members; means for driving said first and second image forming means, and said transferring means such that a first print mode, in which the data is recorded to one of the recording members by said first image forming means and said transferring means, is switched to a second print mode, in which the data is recorded on another recording member by said image forming means when a predetermined occurrence is detected; and means for successively moving the recording medium relative to said first and second image forming means so as to achieve a successive recording of the data onto the other recording member when the first print mode is switched to the second print mode.
Claim 9
Dependent Claim
50 words
The recording apparatus as claimed in claim 5 wherein said driving means includes means for successively switching the first print mode to the second print mode after an operation of the first print mode ceases if a second print mode is designated during the operation of the first print mode.
Claim 10
Dependent Claim
21 words
The recording apparatus as claimed in claim 6, wherein said first and second image forming means have a same color toner.
Claim 11
Dependent Claim
21 words
The recording apparatus as claimed in claim 6, wherein said first and second image forming means have different color toners, respectively.
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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) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |