GB2299476A - Electronic printing with increased resolution - Google Patents

Electronic printing with increased resolution Download PDF

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Publication number
GB2299476A
GB2299476A GB9506306A GB9506306A GB2299476A GB 2299476 A GB2299476 A GB 2299476A GB 9506306 A GB9506306 A GB 9506306A GB 9506306 A GB9506306 A GB 9506306A GB 2299476 A GB2299476 A GB 2299476A
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GB
United Kingdom
Prior art keywords
image
display
carrier material
pixels
carrier
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.)
Granted
Application number
GB9506306A
Other versions
GB9506306D0 (en
GB2299476B (en
Inventor
Robert Terence Portus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Integrex Ltd
Original Assignee
Integrex Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Integrex Ltd filed Critical Integrex Ltd
Priority to GB9506306A priority Critical patent/GB2299476B/en
Publication of GB9506306D0 publication Critical patent/GB9506306D0/en
Publication of GB2299476A publication Critical patent/GB2299476A/en
Application granted granted Critical
Publication of GB2299476B publication Critical patent/GB2299476B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • 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
    • B41J2/4473—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 liquid crystal [LC] arrays
    • 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
    • B41J2/485—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes
    • B41J2/505—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements
    • B41J2/5056—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements using dot arrays providing selective dot disposition modes, e.g. different dot densities for high speed and high-quality printing, array line selections for multi-pass printing, or dot shifts for character inclination
    • 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
    • G06K15/1233—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 using a cathode-ray tube or an optical-fibre tube
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/1951—Scanning picture elements spaced apart from one another in at least one direction in one direction
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/19521—Arrangements for moving the elements of the array relative to the scanned image or vice versa
    • H04N1/19526—Optical means
    • H04N1/19536—Refracting elements
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/19521—Arrangements for moving the elements of the array relative to the scanned image or vice versa
    • H04N1/19526—Optical means
    • H04N1/19547—Apertures
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H04N1/19505—Scanning picture elements spaced apart from one another in at least one direction
    • H04N1/19521—Arrangements for moving the elements of the array relative to the scanned image or vice versa
    • H04N1/19573—Displacing the scanned image
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0432—Adjusting the orientation of the scanning elements relative to the scanned sheet, e.g. changing from longitudinal to lateral scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0458—Additional arrangements for improving or optimising scanning resolution or quality

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Liquid Crystal (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

A method of printing on an image carrier material (10) comprises forming, on a display (12) an image defined by a plurality of lines of pixels. The method further includes transmitting light from each of the pixels in a predetermined timing sequence in the form of image dots, moving an image carrier material, which is formed of a light sensitive material, relative to the display (12). The illuminated image dots impinge on the carrier material (10) and form the image thereon. The carrier material (10) is moved in such a direction relative to the display (12) as to increase the number of image dots formed on each line of the carrier material (10) in relation to the number of pixels in each line of the image display. This thereby increases the resolution of the printed image.

Description

Electronic Printing Method and Apparatus This invention relates to a method of and apparatus for printing on an image carrier material, and is particularly concerned with electronic image creation and printing.
On a computer liquid crystal display (LCD), an image created is defined by a plurality of lines of pixels. Conventionally, printing of the image on a carrier material is effected by printing a matrix of image dots on the carrier material the same as the matrix of pixels in the display image. However, for quality printing, image resolution requires a considerable increase in the number of dots per square inch on the carrier over the number of pixels per square inch provided by an LCD.
According to the present invention there is provided a method of printing on an image carrier material, the method comprising forming, on a display, an image defined by a plurality of lines of pixels, transmitting light from each of the pixels in a predetermined timing sequence in the form of image dots, moving an image carrier material, which is formed of a light sensitive material, relative to the display whereby the illuminated image dots impinge on the carrier material and form the image thereon, the carrier material being moved in such a direction relative to the display as to increase the number of image dots formed on each line of the carrier material in relation to the number of pixels in each line of the image display, and thereby increase the resolution of the printed image.
Preferably the carrier material is moved in a direction at a predetermined angle relative to a centre line of the display.
The image is preferably formed on a liquid crystal display and the light from each of the pixels may be directed through an apertured member or focussed by means of a respective lens assembly. The carrier may be so moved relative to the display as to print at least 300 image dots per inch from a display of approximately 80 pixels per inch.
The carrier material is preferably a photosensitive material enabling printing by a positive/positive process or a positive/negative process.
The present invention also provides apparatus for image printing, the apparatus comprising a display on which can be formed an image defined by a plurality of lines of pixels, means for illuminating each of the pixels in a predetermined timing sequence to define image dots, means for moving an image carrier of a light sensitive material relative to the display whereby illuminated image dots can be transmitted to the carrier to form the image thereon, but for moving the carrier material in such a direction relative to the display as to increase a number of image dots on each line of the carrier material in relation to the number of pixels in each line of the image display, and thereby increase the resolution of the printed image.
The means for moving the image carrier material is preferably arranged to move the carrier material in a direction at a predetermined angle relative to a centre line of the display.
The display may be a liquid crystal display and an apertured member may be provided for directing light from illumintated image dots to the carrier.
Alternatively, a lens assembly associated with the display may be provided for focussing light from illuminated image dots on the carrier.
The invention further provides a computer printer having an apparatus as described in any of the three preceding paragraphs and means for creating an image on the display.
An embodiment of the present invention will now be described by way of example only, with reference to the single figure of the accompanying drawing which shows diagrammatically the relationship between an image display and an image carrier material in a computer printer.
A computer printer provides a display screen in the form of an LCD, and the computer being programmed to enable the creation by the operator of an image on the LCD, the image being defined by a plurality of lines of pixels on the LCD. The normal resolution for a monochrome LCD is approximately 80 pixels per inch along each axis, normally expressed as a pitch of 0.3 mm.
The LCD is positioned parallel to, and immediately adjacent, one side face of a lens plate, for example of the Fresnel type, with a source of white light located on the other side of the lens plate. The lens plate converts diverging light from the light source to parallel light which is then transmitted to the LCD. As an LCD is formed of a matrix of spaced pixels, which can be rectangular, circular, triangular etc., for transmission of the image, an apertured plate is located parallel, to and immediately adjacent, the side of the LCD remote from the lens plate. The apertures are associated with respective pixels, whereby to direct light from each pixel through the apertured plate. The intensity of light transmitted from each pixel is voltage controlled.
For printing the created image, an image carrier in the form of a sheet of photosensitive material is passed through the printer, the material preferably being a chemically treated material on which an image can be printed by a positive/positive process by illumination of the image directly onto the material.
On transmission of the image to the carrier material, the image is developed by passing the latter through pressure rollers, or other known pressure applying means, in the printer, in accordance with a known technique.
The image carrier sheet is passed across, and very close to, the side of the apertured plate remote from the LCD, whereby the light from the pixels passing through the apertured plate is transmitted directly on to the image carrier sheet of photosensitive material.
In a modification, a mask of lens assemblies may be provided as an alternative to the apertured plate, whereby the lenses would focus light from the pixels onto the image carrier sheet. An array of lens assemblies may be provided, or the complete lens assembly may be fabricated as a unitary component using polymers, resins or similar materials.
For colour printing in red, green and blue, there are various possibilities. Firstly, three coloured light sources may be provided in the printer, with computer controlled switching between the sources as required. Secondly, a colour segmented disc may be located over the light source, and be subject to synchronised spinning under the control of the computer.
As an another alternative, three filter strips rcr the respective colours may be provided on the apertured plate or lens mask. It would further be possible to use a colour LCD, i.e. an LCD with built-in colour filters.
For quality image printing, a resolution considerably greater than that of an LCD is required, for example at least 300 image dots per inch. To achieve such a resolution, and referring to the drawing, an image carrier sheet 10 is passed through the printer in the direction of arrow A at a predetermined angle to a centre line of an LCD 12. It will be apparent that such movement of the carrier sheet 10 enables printing firstly of the row 4 dot of column 1 of LCD 12, i.e. dot 14, followed by the row 4 dot of column 2, i.e. dot 16, then the row 4 dot of column 3, i.e. dot 18, then row 4 dot of column 4, i.e. dot 20, and then the row 4 dot of column 5 together with the row 3 dot of column 1, i.e.
dots 22, 26, and so on. Dot 14 is therefore printed as dot 14a adjacent to the printed dot 26a from the row 3 dot of column 1, i.e. dot 26, and the other column 1 dots 38, 50 are printed sequentially and linearly as dots 38a, 50a between dot 14a and the respective edge of the carrier sheet 10. The drawing shows a schematic example only, while in one specific example, movement of the carrier sheet at an angle of 14.040 to the LCD enables the printing of an image with a resolution of 349.09 dots per inch from an LCD of 84.66 pixels per inch, thereby providing the necessary resolution for quality printing.
The pixels are illuminated in a predetermined timing sequence by providing the computer program with a timing algorithm. The computer can also be programmed to move the created image through the necessary angle for printing.
In a positive to positive process, unexposed areas are black when developed. In an LCD, there are gaps between adjacent pixels, so that an image transmitted directly from the LCD would show these gaps in the form of a black grid. Use of the apertured plate or lens mask allows the printed pixels to be the same size as, or larger than, the reciprocal of the printed dot pitch, whereby to provide a small overlap and thus eliminate the black grid effect. The apertures in the mask may be shaped to provide any required printed dot shape, such as circular, rectangular or elliptical.
It is likely that, in any LCD, a small number of pixels will malfunction. If the malfunction has the effect of a pixel transmitting all light without control, it is appropriate to prevent the transmission by blanking or inking out the appropriate aperture in the plate. If the malfunction has the effect of no light being transmitted, then a substitute dot can be printed from another pixel in the appropriate path of travel, from an area of the LCD outside of the actual printing area of the LCD. To average out variations in LCD transmission intensity, several pixels along a respective pixel path may be used to form a printed dot, thereby disguising a faulty pixel by electronic control of other pixels.
It will be appreciated that the angle between the direction of movement of the carrier sheet and the LCD can be varied as necessary. An even distribution of printed dots per line requires certain specific angles, e.g. tan 1/3, tan 11/4 or tan 11/5 etc. For example, the smaller the pitch of the pixels in the image display, the less will be the angle required for the necessary image resolution. It will also be appreciated that the movement of the carrier sheet at an angle provides the sheet with a print length greater than would otherwise be the case. The carrier sheet may be in the form of a roll of photosensitive paper which facilitates handling.
There is thus provided a printing apparatus and method which enables a higher resolution of the printed image without any consequent decrease in the pixel pitch of the LCD. This, together with the direct photographic transfer of the image, renders the computer printer cost effective, with faster printing than that used in current computer printers.
Various modifications may be made without departing from the invention. For example an image display other than an LCD may be utilised. The described positive/positive process, when using colour, prints the same colour on the carrier sheet as is exposed to the latter.

Claims (14)

Claims
1. A method of printing on an image carrier material, the method comprising forming, on a display, an image defined by a plurality of lines of pixels, transmitting light from each of the pixels in a predetermined timing sequence in the form of image dots, moving an image carrier material, which is formed of a light sensitive material, relative to the display whereby the illuminated image dots impinge on the carrier material and form the image thereon, the carrier material being moved in such a direction relative to the display as to increase the number of image dots formed on each line of the carrier material in relation to the number of pixels in each line of the image display, and thereby increase the resolution of the printed image.
2. A method according to Claim 1, wherein the carrier material is moved in a direction at a predetermined angle relative to a centre line of the display.
3. A method according to Claim 1 or 2, wherein the image is formed on a liquid crystal display and the light from each of the pixels is directed through an apertured member.
4. A method according to Claim 1 or 2, wherein the image is formed on a liquid crystal display and the light from each of the pixels is focussed by means of a respective lens assembly.
5. A method according to any of the preceding Claims, wherein the carrier is so moved relative to the display as to print at least 300 image dots per inch from a display of approximately 80 pixels per inch.
6. A method according to any of the preceding Claims, wherein the carrier material is a photosensitive material enabling printing by a positive/positive process.
7. A method according to any of Claims 1 to 5, wherein the carrier material is a photosensitive material enabling printing by a positive/negative process.
8. Apparatus comprising a display on which can be formed an image defined by a plurality of lines of pixels, means for illuminating each of the pixels in a predetermined timing sequence to define image dots, means for moving an image carrier of a light sensitive material relative to the display whereby illuminated image dots can be transmitted to the carrier to form the image thereon, but for moving the carrier material in such a direction relative to the display as to increase a number of image dots on each line of the carrier material in relation to the number of pixels in each line of the image display, and thereby increase the resolution of the printed image.
9. Apparatus according to Claim 8, wherein the means for moving the image carrier material is arranged to move the carrier material in a direction at a predetermined angle relative to a centre line of the display.
10. Apparatus according to Claim 8 or 9, wherein display is a liquid crystal display.
11. Apparatus according to any of Claims 8 to 10, wherein an apertured member is provided for directing light from illumintated image dots to the carrier.
12. Apparatus according to any of Claims 8 to 10, wherein a lens assembly associated with the display is provided for focussing light from illuminated image dots on the carrier.
13. A computer printer having an apparatus according to any of Claims 8 to 12, and means for creating an image on the display.
14. A method of printing on an image carrier material, substantially as hereinbefore described with reference to the accompanying drawings.
GB9506306A 1995-03-28 1995-03-28 Electronic printing method and apparatus Expired - Fee Related GB2299476B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9506306A GB2299476B (en) 1995-03-28 1995-03-28 Electronic printing method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9506306A GB2299476B (en) 1995-03-28 1995-03-28 Electronic printing method and apparatus

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GB9506306D0 GB9506306D0 (en) 1995-05-17
GB2299476A true GB2299476A (en) 1996-10-02
GB2299476B GB2299476B (en) 1999-06-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2783387A1 (en) * 1998-09-15 2000-03-17 Kis IMPROVED METHOD FOR TRANSFERRING A DIGITAL IMAGE WITH A VIEW TO ITS VISUAL RETURN OR ITS ACQUISITION AND DEVICES FOR CARRYING OUT SAID METHOD
EP1345404A1 (en) * 2002-03-12 2003-09-17 Agfa-Gevaert AG Method for pixelwise generation of images

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2061662A (en) * 1979-09-14 1981-05-13 Canon Kk Beam recording apparatus effecting the recording by a plurality of beams
US4864328A (en) * 1988-09-06 1989-09-05 Spectra, Inc. Dual mode ink jet printer
GB2224614A (en) * 1988-11-07 1990-05-09 Joseph Faybish High resolution imaging system
GB2230674A (en) * 1989-04-17 1990-10-24 Xaf Partners Facsimile printing method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2061662A (en) * 1979-09-14 1981-05-13 Canon Kk Beam recording apparatus effecting the recording by a plurality of beams
US4864328A (en) * 1988-09-06 1989-09-05 Spectra, Inc. Dual mode ink jet printer
GB2224614A (en) * 1988-11-07 1990-05-09 Joseph Faybish High resolution imaging system
GB2230674A (en) * 1989-04-17 1990-10-24 Xaf Partners Facsimile printing method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2783387A1 (en) * 1998-09-15 2000-03-17 Kis IMPROVED METHOD FOR TRANSFERRING A DIGITAL IMAGE WITH A VIEW TO ITS VISUAL RETURN OR ITS ACQUISITION AND DEVICES FOR CARRYING OUT SAID METHOD
EP0987875A1 (en) * 1998-09-15 2000-03-22 Kis Method and apparatus for visualising a digital image or for capture of the image
EP1345404A1 (en) * 2002-03-12 2003-09-17 Agfa-Gevaert AG Method for pixelwise generation of images

Also Published As

Publication number Publication date
GB9506306D0 (en) 1995-05-17
GB2299476B (en) 1999-06-23

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070328