Patent US4563694A successfully refreshed from Google Patents.
US4563694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image information recording apparatus
Assignee: Canon Inc
•
Filing: 1984-02-06
•
Granted: 1986-01-07
•
Expires: 2004-02-06
Abstract
Abstract An image information recording apparatus wherein a photosensitive member is scanned with a laser beam corresponding to the information signal of an image to be recorded, the power of the laser beam being controlled in accordance with the wavelength of the laser beam and the sensitivity of the photosensitive member.
Inventors
- 👤 Masaharu Ohkubo
- 👤 Yoshihiro Murasawa
- 👤 Yasumasa Ohtsuka
- 👤 Jun Asai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:18
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/16; G03G21/18; G03G21/1875; G03G21/1896; G03G15/00; G03G15/50; G03G15/5033; G03G2221/00; G03G2221/16; G03G2221/1636; G03G2221/1693; G03G2221/18; G03G2221/183; G03G2221/1838
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
225 words
An image information recording apparatus comprising: a movable photosensitive member movable by a pre-exposure station, charging station, laser beam exposure station, developing station and transfer station in the order named; information beam producing means for producing a laser beam corresponding to an information signal of an image to be recorded; pre-exposure means, located at said pre-exposure station, for substantially uniformly exposing said photosensitive member to illumination light; charging means, located at said charging station, for charging said photosensitive member; optical means for scanningly deflecting said laser beam to expose said photosensitive member to the laser beam at said laser beam exposure station; laser beam power control means for controlling power of the laser beam incident on said photosensitive member in accordance with the wavelength of said laser beam and sensitivity of said photosensitive member; and pre-exposure control means for controlling the power of the illumination light from said pre-exposure means in accordance with the sensitivity of said photosensitive member; wherein said laser beam power control means and said pre-exposure control means includes a common detection means for detecting the sensitivity information of a photosensitive member mounted in said apparatus, and wherein, in response to the signal from said detection means, said laser beam power control means controls the power of the laser beam, and said pre-exposure control means controls the power of the illumination light.
Claim 2
Dependent Claim
225 words
An image information recording apparatus comprising: a movable photosensitive member movable by a pre-exposure station, charging station, laser beam exposure station, developing station and transfer station in the order named; information beam producing means for producing a laser beam corresponding to an information signal of an image to be recorded; pre-exposure means, located at said pre-exposure station, for substantially uniformly exposing said photosensitive member to illumination light; charging means, located at said charging station, for charging said photosensitive member; optical means for scanningly deflecting said laser beam to expose said photosensitive member to the laser beam at said laser beam exposure station; laser beam power control means for controlling power of the laser beam incident on said photosensitive member in accordance with the wavelength of said laser beam and sensitivity of said photosensitive member; and pre-exposure control means for controlling the power of the illumination light from said pre-exposure means in accordance with the sensitivity of said photosensitive member; wherein said laser beam power control means and said pre-exposure control means includes a common detection means for detecting the sensitivity information of a photosensitive member mounted in said apparatus, and wherein, in response to the signal from said detection means, said laser beam power control means controls the power of the laser beam, and said pre-exposure control means controls the power of the illumination light.
Claim 3
Dependent Claim
39 words
An image information recording apparatus as defined in claim 1, wherein said pre-exposure control means includes means for controlling a level of a drive current applied to said pre-exposure means in accordance with the sensitivity of said photosensitive member.
Claim 4
Dependent Claim
154 words
An image information recording apparatus comprising: a semiconductor laser for producing a laser beam corresponding to an information signal of an image to be recorded; means for detachably supporting a cartridge containing a movable photosensitive member, wherein said cartridge is provided with means for representing sensitivity information of the photosensitive member contained therein; optical means for scanningly deflecting said laser beam and exposing said movable photosensitive member to the laser beam; and control means including means for holding wavelength information controlled in accordance with laser beam wavelength information peculiar to said laser in said apparatus and detecting means cooperable with the representing means of the cartridge, when supported by said supporting means, to detect the sensitivity information of the photosensitive member contained in the cartridge, said control means controlling power of the laser beam in accordance with the wavelength information held in said holding means and the sensitivity information detected by said detecting means.
Claim 5
Dependent Claim
154 words
An image information recording apparatus comprising: a semiconductor laser for producing a laser beam corresponding to an information signal of an image to be recorded; means for detachably supporting a cartridge containing a movable photosensitive member, wherein said cartridge is provided with means for representing sensitivity information of the photosensitive member contained therein; optical means for scanningly deflecting said laser beam and exposing said movable photosensitive member to the laser beam; and control means including means for holding wavelength information controlled in accordance with laser beam wavelength information peculiar to said laser in said apparatus and detecting means cooperable with the representing means of the cartridge, when supported by said supporting means, to detect the sensitivity information of the photosensitive member contained in the cartridge, said control means controlling power of the laser beam in accordance with the wavelength information held in said holding means and the sensitivity information detected by said detecting means.
Claim 6
Dependent Claim
55 words
An image information recording apparatus as defined in claim 3, wherein said control means includes level control means for controlling a level of a drive current to be applied to said semiconductor laser in accordance with the sensitivity information detected by said detecting means and the wavelength information held by said wavelength information holding means.
Claim 7
Dependent Claim
55 words
An image information recording apparatus as defined in claim 3, wherein said control means controls, in accordance with the wavelength information held by said holding means, the upper and lower limits of a range of the power within which the laser beam is controlled in accordance with the sensitivity information detected by said detecting means.
Claim 8
Dependent Claim
72 words
An image information recording apparatus as defined in claim 4, wherein said control means includes first control means for controlling a level of current in accordance with the wavelength information held in said holding means and second control means for controlling a level of said drive current in accordance with the sensitivity information detected by said detecting means and on the basis of the current level controlled by said first control means.
Claim 9
Dependent Claim
46 words
An image information recording apparatus as defined in claim 3 wherein said control means controls, in accordance with the sensitivity information detected by a range of the power within which the laser beam is controlled in accordance with the wavelength information held in said holding means.
Claim 10
Dependent Claim
58 words
An image information recording apparatus as defined in claim 4, wherein said control means includes first control means for controlling a level of current in accordance with the sensitivity information detected by said detecting means and second control means for controlling a level of said drive current in accordance with the wavelength information held in said holding means.
Claim 11
Dependent Claim
53 words
An image information recording apparatus as defined in claim 3, wherein said control means selects, among the powers corresponding to combinations of sensitivity information data and wavelength information data, a power corresponding to the combination of the sensitivity information detected by said detecting means and the wavelength information held by said holding means.
Claim 12
Dependent Claim
64 words
An image information recording apparatus as defined in claim 4, wherein said control means selects, as the level of the drive current, from a plurality of current levels predetermined corresponding to combinations of sensitivity information data and wavelength information data, a current level adapted to a combination of the sensitivity information detected by said detecting means and wavelength information held by said holding means.
Claim 13
Dependent Claim
47 words
An image information recording apparatus as defined in claim 10, wherein said control means stores said plurality of current levels and produces laser driving current information adapted to the combination of the sensitivity information detected by said detecting means and wavelength information held by said holding means.
Claim 14
Dependent Claim
30 words
An image information recording apparatus as defined in any one of claims 3 to 11, wherein said wavelength information holding means is adapted to receive the wavelength information manually inputted.
Claim 15
Dependent Claim
185 words
An image information recording apparatus comprising: a laser for producing a laser beam corresponding to an information signal of an image to be recorded; supporting means for detachably supporting a cartridge including a movable photosensitive member movable by a pre-exposure station, charging station, laser beam exposure station, developing station and transfer station in the order named, said cartridge being provided with means for representing sensitivity information of the photosensitive member contained therein; optical means for scanningly deflecting said laser beam to expose said photosensitive member to the laser beam of said laser beam exposure station; and laser beam power control means, said control means includes means for receiving manually inputted wavelength information peculiar to said laser in said apparatus and detecting means cooperable with the representing means of the cartridge, when supported by said supporting means, to detect the sensitivity information of the photosensitive member contained in the cartridge, said control means controlling power of the laser beam incident on the photosensitive member in accordance with the wavelength information inputted into said wavelength information receiving means and the sensitivity information detected by said detecting means.
Claim 16
Dependent Claim
185 words
An image information recording apparatus comprising: a laser for producing a laser beam corresponding to an information signal of an image to be recorded; supporting means for detachably supporting a cartridge including a movable photosensitive member movable by a pre-exposure station, charging station, laser beam exposure station, developing station and transfer station in the order named, said cartridge being provided with means for representing sensitivity information of the photosensitive member contained therein; optical means for scanningly deflecting said laser beam to expose said photosensitive member to the laser beam of said laser beam exposure station; and laser beam power control means, said control means includes means for receiving manually inputted wavelength information peculiar to said laser in said apparatus and detecting means cooperable with the representing means of the cartridge, when supported by said supporting means, to detect the sensitivity information of the photosensitive member contained in the cartridge, said control means controlling power of the laser beam incident on the photosensitive member in accordance with the wavelength information inputted into said wavelength information receiving means and the sensitivity information detected by said detecting means.
Claim 17
Dependent Claim
55 words
An image information recording apparatus as defined in claim 13, wherein said control means includes level control means for controlling a level of a drive current to be applied to said laser in accordance with the sensitivity information detected by said detecting means and the wavelength information manually inputted to said wavelength information receiving means.
Claim 18
Dependent Claim
56 words
An image information recording apparatus as defined in claim 13 wherein said control means controls, in accordance with the wavelength information manually inputted to said receiving means, the upper and lower limits of a range of the power within which the laser beam is controlled in accordance with the sensitivity information detected by said detecting means.
Claim 19
Dependent Claim
73 words
An image information recording apparatus as defined in claim 14, wherein said control means includes first control means for controlling a level of current in accordance with the wavelength information manually inputted to said receiving means and second control means for controlling a level of said drive current in accordance with the sensitivity information detected by said detecting means and on the basis of the current level controlled by said first control means.
Claim 20
Dependent Claim
56 words
An image information recording apparatus as defined in claim 13, wherein said control means controls, in accordance with the sensitivity information detected by said detecting means, the upper and lower limits of a range of the power within which the laser beam is controlled in accordance with the wavelength information manually inputted to said receiving means.
Claim 21
Dependent Claim
59 words
An image information recording apparatus as defined in claim 14, wherein said control means include first control means for controlling a level of current in accordance with the sensitivity information detected by said detecting means and second control means for controlling a level of said drive current in accordance with the wavelength information manually inputted to said receiving means.
Claim 22
Dependent Claim
55 words
An image information recording apparatus as defined in claim 13, wherein said control means selects, among the power levels corresponding to combinations of sensitivity information data and wavelength information data, a power level corresponding to the combination of the sensitivity information detected by said detection means and the wavelength information inputted to said recording means.
Claim 23
Dependent Claim
65 words
An image information recording apparatus as defined in claim 14, wherein said control means selects, as the level of the drive current, from a plurality of current levels predetermined corresponding to combinations of sensitivity information data and wavelength information data, a current level adapted to a combination of the sensitivity information detected by said detecting means and wavelength information manually inputted to said receiving means.
Claim 24
Dependent Claim
48 words
An image information recording apparatus as defined in claim 20, wherein said control means stores said plurality of current levels and produces laser driving current information adapted to the combination of the sensitivity information detected by said detecting means and wavelength information manually inputted to said receiving means.
Claim 25
Dependent Claim
48 words
An image information recording apparatus as defined in any one of claims 13 to 21, further including pre-exposure control means for controlling a level of a drive current applied to pre-exposure means located at said pre-exposure station in accordance with the sensitivity information detected by said detecting means.
Claim 26
Dependent Claim
88 words
An image information recording apparatus as defined in any one of claims 13 to 21, wherein the cartridge further includes second representing means for representing chargeability information of the photosensitive member contained in the cartridge, and wherein said apparatus further comprises charge control means including second detecting means for cooperating with the second representing means of the cartridge when supported by said supporting means, said charge control means controlling charging means located at said charging station in accordance with the chargeability information detected by said second detecting means.
Claim 27
Dependent Claim
73 words
An image information recording apparatus as defined in claim 23, wherein said charging means includes a corona discharge electrode, a shield member and a grid member, and wherein said charge control means includes voltage means for providing a plurality of different voltages and selection means for selecting and applying a voltage corresponding to the chargeability information detected by said second detecting means to at least one of said shield member and grid member.
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) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |