CA1107808A - Exposure control for selective speed xerographic printing and the like - Google Patents
Exposure control for selective speed xerographic printing and the likeInfo
- Publication number
- CA1107808A CA1107808A CA273,520A CA273520A CA1107808A CA 1107808 A CA1107808 A CA 1107808A CA 273520 A CA273520 A CA 273520A CA 1107808 A CA1107808 A CA 1107808A
- Authority
- CA
- Canada
- Prior art keywords
- laser
- attenuator
- printing
- improvement
- recording medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000007639 printing Methods 0.000 title claims abstract description 46
- 108091008695 photoreceptors Proteins 0.000 claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- QHGVXILFMXYDRS-UHFFFAOYSA-N pyraclofos Chemical compound C1=C(OP(=O)(OCC)SCCC)C=NN1C1=CC=C(Cl)C=C1 QHGVXILFMXYDRS-UHFFFAOYSA-N 0.000 claims 2
- 230000002730 additional effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 230000002238 attenuated effect Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 3
- 238000007648 laser printing Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000011885 synergistic combination Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
- H04N1/4005—Circuits exciting or modulating particular heads for reproducing continuous tone value scales with regulating circuits, e.g. dependent upon ambient temperature or feedback control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
- H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a laser
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Fax Reproducing Arrangements (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Laser Beam Printer (AREA)
- Facsimile Scanning Arrangements (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/672,706 US4197560A (en) | 1976-04-01 | 1976-04-01 | Exposure control for selective speed xerographic printing and the like |
| US672,706 | 1976-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1107808A true CA1107808A (en) | 1981-08-25 |
Family
ID=24699672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA273,520A Expired CA1107808A (en) | 1976-04-01 | 1977-03-09 | Exposure control for selective speed xerographic printing and the like |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4197560A (enExample) |
| JP (1) | JPS52120614A (enExample) |
| CA (1) | CA1107808A (enExample) |
| FR (1) | FR2346919A1 (enExample) |
| GB (1) | GB1572621A (enExample) |
| NL (1) | NL7702793A (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4319285A (en) * | 1976-04-01 | 1982-03-09 | Xerox Corporation | Exposure control for selective speed xerographic printing and the like |
| US4249807A (en) * | 1979-05-14 | 1981-02-10 | The Gerber Scientific Instrument Company | Color plotting device and method |
| JPS574780A (en) | 1980-06-13 | 1982-01-11 | Fuji Xerox Co Ltd | Multilevel image printer |
| JPS58133081A (ja) * | 1982-02-02 | 1983-08-08 | Canon Inc | 画像記録装置 |
| JPS5974542A (ja) * | 1982-10-22 | 1984-04-27 | Hitachi Ltd | プリンタ |
| US4583128A (en) * | 1984-08-27 | 1986-04-15 | Minnesota Mining And Manufacturing Company | Continuous tone recording system incorporating feedback control circuit |
| US4803497A (en) * | 1987-08-31 | 1989-02-07 | Dr.-Ing. Rudolf Hell Gmbh | Laser diode output power stabilization in a laser imagesetter |
| JP2002297346A (ja) * | 2001-03-29 | 2002-10-11 | Ricoh Co Ltd | Ｓｂｃ対応プリンタ出力システム、ｓｂｃ対応プリンタ出力方法、該方法を実現するプログラム及び該プログラムのプログラム記録媒体 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB284285A (en) * | 1927-01-27 | 1929-02-07 | Heinrich Johannes Kuchen Meist | Means for regulating the strength of sound in photo-electric reproduction from soundfilms |
| US2274530A (en) * | 1940-08-24 | 1942-02-24 | Rca Corp | Automatic light intensity control for sound apparatus |
| US3105426A (en) * | 1960-04-04 | 1963-10-01 | Xerox Corp | Xerographic apparatus |
| US3316348A (en) * | 1963-05-01 | 1967-04-25 | Perkin Elmer Corp | Scanning system for recording pictorial data |
| US3245083A (en) * | 1965-03-12 | 1966-04-05 | Clevite Corp | Direct writing oscillograph |
| US3354465A (en) * | 1965-10-22 | 1967-11-21 | Cons Electrodynamics Corp | Constant density oscillograph trace |
| US3482254A (en) * | 1967-12-06 | 1969-12-02 | Telex Inc | Apparatus for recording the time-variation of an electrical signal utilizing a pulsed laser |
| US3750189A (en) * | 1971-10-18 | 1973-07-31 | Ibm | Light scanning and printing system |
| US3858004A (en) * | 1973-05-17 | 1974-12-31 | Xerox Corp | Filter for selective speed xerographic printing in facsimile transceivers and the like |
-
1976
- 1976-04-01 US US05/672,706 patent/US4197560A/en not_active Expired - Lifetime
-
1977
- 1977-03-09 CA CA273,520A patent/CA1107808A/en not_active Expired
- 1977-03-15 NL NL7702793A patent/NL7702793A/xx not_active Application Discontinuation
- 1977-03-25 JP JP3320577A patent/JPS52120614A/ja active Pending
- 1977-03-29 GB GB13161/77A patent/GB1572621A/en not_active Expired
- 1977-04-01 FR FR7709991A patent/FR2346919A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2346919A1 (fr) | 1977-10-28 |
| US4197560A (en) | 1980-04-08 |
| GB1572621A (en) | 1980-07-30 |
| JPS52120614A (en) | 1977-10-11 |
| FR2346919B1 (enExample) | 1983-10-14 |
| NL7702793A (nl) | 1977-10-04 |
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| CA1107808A (en) | Exposure control for selective speed xerographic printing and the like | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |