Agfa Gevaert Nv

Agfa-gevaert

Agfa-gevaert Ag

Robert Theodoor Overmeer

Jacobus Herman Bosschaerts

Leo Oelbrandt

Hans Louis Strijckers

Serge M Tavernier

Eddie R Daems

Johan Hubert Van Hunsel

William Constant Waterschoot

Joan T Vermeersch

Luc H Leenders

Jurgen Muller

Patrick Van Den Bergen

Paul A Delabastita

David Tilemans

Friedrich Stumpf

Thomas Zehetmaier

Hans A Massengeil

Willy Gabriel Ceuppens

Willy J Palmans

Joachim Pietruska

Marc De Clerck

Joseph Michielsen

Karsten Dierksen

Gerald Halbedl

Fred William Marland

Frans M Umans

Jean J Caufriez

A method for recording an image on a thermographic material (m) provides a thermographic material, a transparent thermal head (TH) having energizable heating elements (Hi), and a radiation beam (L). The heating elements of the thermal head are activated and the radiation beam is passed through transparent parts of the thermal head. Herein, the total energy resulting from the thermal head and from the radiation beam has a level corresponding to a gradation of the image to be recorded. Further embodiments comprise e.g. holding the thermographic material on one and a same drum during both an imagewise exposing step and a heating step.

Method for thermal recording

A recording process comprising the steps of: information-wise exposing to radiation a photosensitive thermally developable photographic material, thereby producing a latent image; and heating the photosensitive thermally developable photographic material, characterized in that the photosensitive thermally developable photographic material is on one and the same holding or guiding means during both the information-wise exposure step and the heating step; and the information-wise exposure step is carried out during the heating step; and a method of increasing the photosensitivity of a photosensitive thermally developable photographic material.

Sensitivity-increasing recording process for a photosensitive thermally

A method for generating on a lithographic printing plate a screened reproduction of a contone image, comprising the steps of: (1) transporting a thermo-sensitive imaging element through an exposure area; (2) scanwise exposing the thermo-sensitive imaging element according to screened data representative for tones of a contone image with a set (s) of radiation beams (b) as the thermo-sensitive imaging element is transported through the exposure area, characterized in that at any given moment (ta+.DELTA.t) during the exposure at least two radiation beams (bi,bj) of the set of radiation beams impinge on different microdots (ma, ma+.DELTA.m) of a scanline (1a) on the imaging element, so that by completion of the exposure step each effective microdot of the scanline has been impinged by all effective radiation beams of the set.

Producing a lithographic printing plate by sequentially exposing a

A method and apparatus is provided for operating a direct electrostatic printer whereby no printer adjustments are required by the operator. The direct thermal printer includes a print head and a variable speed motor for reproducing images on an imaging element. The method for operating the direct electrostatic printer includes the steps of: receiving medical image data representing the medical images; processing one or more printing prerequisites provided with the medical image data for controlling heating energy applied to the print head and for controlling the speed of the variable speed drive motor; generating a control signal from the printing prerequisites for controlling the speed of the variable speed drive motor; automatically configuring the printer in a plurality of operating modes using the control signal; passing the imaging element adjacent the print head by means of the variable speed drive motor; and heating the print head in accordance with the medical image data and the printing prerequisites to form the medical images on the imaging element. In addition, the printer is capable of operating in at least two modes, including a standard quality operating mode in which the variable speed drive motor is operated at a first speed, and at least one premium quality operating mode in which the variable speed drive motor is operated at a second speed slower than the first speed.

Direct thermal printing method and apparatus

Thermal recording or producing of a contone image comprises an imagewise and scanwise exposing a thermographic recording material with a set (s) of radiation beams (b), wherein at any given moment (t) during the exposure at least two radiation beams impinge on different dots (m) of a scanline (l), so that by completion of the exposure each effective dot of the scanline has been impinged. Photo-thermographic recording or producing comprises a developing of the exposed photo-thermographic recording material with a set (s) of radiation beams (b), wherein at any given moment (t) during the development at least two radiation beams impinge on different dots (m) of a scanline (l), so that by completion of the development step each dot of the scanline has been impinged by all radiation beams.

Producing a contone image by sequentially exposing a thermo-sensitive

A method for generating a screened reproduction of a contone image comprises the steps of screening the contone image to obtain screened data representative for tones of the contone image and suitable for driving exposure of microdots on a radiation sensitive imaging element; exposing the microdots according to the screened data by at least one set or plurality (p) of radiation beams (b), characterized in that at a point in time (t) at least two radiation beams of the set of radiation beams impinge on a particular microdot (m) of a scanline (l). In particular is described a method for making a lithographic printing plate comprising the abovementioned steps.

Halftone reproduction by single spot multibeam laser recording

In a process of image production by the steps of developing an electrostatic charge pattern with toner particles comprised of coloring matter in a thermoplastic resin binder and dispersed in a carrier liquid and fixing the pattern-wise deposited toner particles while still damp with said carrier liquid on a support by simultaneously subjecting the same to heat and pressure, the toner particles have at 120.degree. C. a melt viscosity when dry of from 500 to 100,000 Pa.s, a mean average diameter of from 0.1 to 5 .mu.m, and a ratio of coloring matter to resin binder of from 1/1 to 1/9 by weight.

Apparatus for heat-and-pressure fixation of toner images

Process for image production containing the heat-and-pressure fixing of

An automatic feeder for a photographic copying machine includes a housing and a plate for supporting a stack of originals which are consecutively conveyed towards a transparent exposure plate positioned on the copying machine. The feeder is provided with adjustable tappet rollers mounted against the exposure plate to receive a front edge of an original moved along the exposure plate, without damaging the front edge. The plate for supporting the stack of originals includes adjustable stops for adjusting the plate to differing formats of the originals being processed. An adjusting lever connected to the adjustable stops for adjusting the latter is operatively connected to an adjustment device for adjusting the position of tappet rollers along the exposure plate. Pivotable transport rollers are provided to hold the original against the exposure plate. The housing of the feeder is pivotable relative to the housing of the copying machine between an open and closed position.

Automatic feeder

A unit for heat fixing xerographic images makes use of a fuser roller and a self adjusting pressure roller. The fuser roller is internally heated and it may be associated with a self adjusting cleaning roller. The preceeding elements may be combined into a unit which can be provided moreover with scraper elements and supplementary feeding rollers located downstream of the fuser and fusing rollers and which rotate at a peripheral speed exceeding that of the latter rollers.

Contact heat fusing apparatus

Growing community of inventors

Mortsel, Belgium

Robert Theodoor Overmeer