ES2095865T3 - Control de exposicion de fuentes de energia. - Google Patents
Control de exposicion de fuentes de energia.Info
- Publication number
- ES2095865T3 ES2095865T3 ES90311516T ES90311516T ES2095865T3 ES 2095865 T3 ES2095865 T3 ES 2095865T3 ES 90311516 T ES90311516 T ES 90311516T ES 90311516 T ES90311516 T ES 90311516T ES 2095865 T3 ES2095865 T3 ES 2095865T3
- Authority
- ES
- Spain
- Prior art keywords
- leds
- duration
- exposure
- voltage
- vco
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
- B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
- G06K15/1238—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point
- G06K15/1242—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point on one main scanning line
- G06K15/1247—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point on one main scanning line using an array of light sources, e.g. a linear array
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Dot-Matrix Printers And Others (AREA)
Abstract
EN UNA IMPRESORA QUE USE UN SISTEMA (10) DE DIODOS EMISORES DE LUZ (LEDS) PARA EXPONER UN MATERIAL FOTOSENSIBLE DE ACUERDO A LA INFORMACION DE LA IMAGEN SUMINISTRADA (14), LOS LEDS EN EL SISTEMA SON ACTIVADOS DE FORMA INDIVIDUAL PARA DURACIONES DE LA EXPOSICION DEPENDIENTES DE LA INFORMACION DE LA IMAGEN. EL SISTEMA DE LEDS (10), SE ALIMENTA DESDE UNA UNIDAD DE FUENTE DE ALIMENTACION 40 CUYO BUS DE ALIMENTACION (VD) VARIA CON EL NUMERO DE LEDS ENCENDIDOS EN CUALQUIER MOMENTO. POR LO TANTO, LA ACTIVACION DE LA EXPOSICION DESDE LOS LEDS NO ES LA QUE SE OBTIENE DESDE LOS DIODOS SI LA TENSION (VD) FUERA CONSTANTE. LA DURACION DE LAS EXPOSICIONES ESTA CONTROLADA DESDE UN RELOJ PROVISTO DE UN OSCILADOR CONTROLADO POR TENSION VCO (50) ES SENSIBLE AL BUS DE TENSION DE ALIMENTACION (VD) DE MANERA QUE LA DURACION DE LAS EXPOSICIONES VARIA COMO FUNCION INVERSA DE ESTA TENSION. EL VCO PUEDE SER TAMBIEN USADO PARA CONTROLAR LA TASA DE ARRASTRE DE UN MOTOR PASO A PASO (20) QUE MUEVE EL MATERIAL FOTOSENSIBLE QUE ATRAVIESA EL SISTEMA DE LEDS (10), PARA MANTENER MEJOR EL REGISTRO MEDIO A MEDIDA QUE LA DURACION DE LA EXPOSICION VARIE. UNA PERSONIFICACION ESPECIFICA DE ESTO SE MUESTRA EN LA FIGURA 2. LAS TECNICAS ANTERIORES PUEDEN TAMBIEN SER APLICADAS A LA IMPRESION CON UN SISTEMA DE CABEZA TERMICA DE IMPRESION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909000353A GB9000353D0 (en) | 1990-01-08 | 1990-01-08 | Exposure control of energy sources |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2095865T3 true ES2095865T3 (es) | 1997-03-01 |
Family
ID=10668959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90311516T Expired - Lifetime ES2095865T3 (es) | 1990-01-08 | 1990-10-19 | Control de exposicion de fuentes de energia. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0437023B1 (es) |
JP (1) | JPH03234675A (es) |
KR (1) | KR910014227A (es) |
AU (1) | AU642918B2 (es) |
CA (1) | CA2029407A1 (es) |
DE (1) | DE69029568T2 (es) |
ES (1) | ES2095865T3 (es) |
GB (1) | GB9000353D0 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6208365B1 (en) * | 1997-12-26 | 2001-03-27 | Noritsu Koki Co. | Vacuum fluorescent printer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409599A (en) * | 1980-10-27 | 1983-10-11 | Casio Computer Co., Ltd. | Printing control device for thermal printer |
JPS57181882A (en) * | 1981-05-01 | 1982-11-09 | Sharp Corp | Printing density control device in thermal printer |
US4445128A (en) * | 1982-04-02 | 1984-04-24 | Pitney Bowes Inc. | Method and apparatus for compensating for irregular motion |
US4525729A (en) * | 1983-04-04 | 1985-06-25 | Polaroid Corporation | Parallel LED exposure control system |
-
1990
- 1990-01-08 GB GB909000353A patent/GB9000353D0/en active Pending
- 1990-10-17 AU AU64847/90A patent/AU642918B2/en not_active Ceased
- 1990-10-19 ES ES90311516T patent/ES2095865T3/es not_active Expired - Lifetime
- 1990-10-19 DE DE69029568T patent/DE69029568T2/de not_active Expired - Fee Related
- 1990-10-19 EP EP90311516A patent/EP0437023B1/en not_active Expired - Lifetime
- 1990-11-06 CA CA002029407A patent/CA2029407A1/en not_active Abandoned
- 1990-11-27 JP JP2325088A patent/JPH03234675A/ja active Pending
-
1991
- 1991-01-07 KR KR1019910000098A patent/KR910014227A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2029407A1 (en) | 1991-07-09 |
AU642918B2 (en) | 1993-11-04 |
JPH03234675A (ja) | 1991-10-18 |
EP0437023A3 (en) | 1992-05-20 |
EP0437023A2 (en) | 1991-07-17 |
DE69029568T2 (de) | 1997-07-10 |
AU6484790A (en) | 1991-07-11 |
GB9000353D0 (en) | 1990-03-07 |
DE69029568D1 (de) | 1997-02-13 |
EP0437023B1 (en) | 1997-01-02 |
KR910014227A (ko) | 1991-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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