EP1217458B1 - Verfahren zur Steuerung des Glanzes eines Tonerbildes und digitale Bildaufzeichnungsvorrichtung - Google Patents

Verfahren zur Steuerung des Glanzes eines Tonerbildes und digitale Bildaufzeichnungsvorrichtung Download PDF

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Publication number
EP1217458B1
EP1217458B1 EP01127117A EP01127117A EP1217458B1 EP 1217458 B1 EP1217458 B1 EP 1217458B1 EP 01127117 A EP01127117 A EP 01127117A EP 01127117 A EP01127117 A EP 01127117A EP 1217458 B1 EP1217458 B1 EP 1217458B1
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EP
European Patent Office
Prior art keywords
toner image
radiation
toner
image
carrier substrate
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
Application number
EP01127117A
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German (de)
English (en)
French (fr)
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EP1217458A2 (de
EP1217458A3 (de
Inventor
Gerhard Dr. Bartscher
Frank-Michael Morgenweck
Domingo Rohde
Muhammed Aslam
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Eastman Kodak Co
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Eastman Kodak Co
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Publication date
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Publication of EP1217458A2 publication Critical patent/EP1217458A2/de
Publication of EP1217458A3 publication Critical patent/EP1217458A3/de
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Publication of EP1217458B1 publication Critical patent/EP1217458B1/de
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2007—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature
    • G03G15/205—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature specially for the mode of operation, e.g. standby, warming-up, error
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00789—Adding properties or qualities to the copy medium
    • G03G2215/00805—Gloss adding or lowering device
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00789—Adding properties or qualities to the copy medium
    • G03G2215/00805—Gloss adding or lowering device
    • G03G2215/0081—Gloss level being selectable

Definitions

  • the invention relates to a method for controlling the gloss of a toner image transferred and fixed on an image carrier substrate, according to the preamble of claim 1.
  • a well-known digital image recording method is electrostatic printing in which a latent electrostatic image is developed by charged toner particles. These are transferred to an image-receiving substrate, hereinafter referred to as substrate. Subsequently, the developed and transferred to the substrate image is fixed by the toner particles are melted by supplying heat.
  • Dry toners are frequently used whose particles have an average diameter of 10 ⁇ m.
  • hot rollers are often used, which are brought into contact with the toner image in contact.
  • a release agent such as silicone oil is required to avoid sticking of the toner image to the roll.
  • at least three layers of toner are stacked on top of the image carrier substrate, with each of the polymer material toner layers having a thickness of 30 microns.
  • the glossiness of these toner layers which is very important for image quality, is determined by many factors, such as the hot roller surface texture, fusing temperature and toner properties.
  • a heated belt is used to melt the toner image.
  • a heated belt is used to melt the toner image.
  • a high gloss can be achieved. Since the tape is heated only for a certain length, the toner image, after passing through the heating area, may cool and harden before being separated from the previously hot surface of the tape. This allows a simple and reliable separation of the toner image from the tape.
  • the structure of the toner image surface is identical to the surface of the belt by reflow. In order to realize a very smooth toner surface, which is accompanied by a high gloss, therefore, a very smooth band must be used.
  • a high gloss of the toner image is not necessary for all applications.
  • an image carrier substrate formed by a matte paper only a low gloss of the toner image is required.
  • One way to change the gloss is to use only slightly heated rollers with a defined surface roughness. The rollers touch the surface of the toner image and shape its surface structure into the toner image. In this method, the roughness of the toner image and thus its To change the gloss, therefore, roles with different roughness must be used.
  • Another disadvantage of the hot rollers is that they are subject to wear and must be replaced after a certain time, which is associated with costs.
  • the mechanical contact between the toner image or the image carrier substrate and the rollers also leads to the fact that the toner image often adheres to the outer circumferential surface of the rollers. In most cases, therefore, a cleaning system for the rollers is required.
  • a method of the type mentioned is from the JP 5150674 known.
  • a transparent tape for toner in connection with an irradiation device is known from the GB 1207139 known.
  • the US 4444487 discloses xenon lamps as radiation sources with which temporally spaced-apart radiation pulses can be emitted, wherein the JP 10123863 In addition, the application of a defined roller force stimulates.
  • the invention provides that the toner image is melted in a first processing step so far that sets a relatively high gloss, and that in a subsequent, second processing step, the toner image with so much heat energy is applied that at least parts of the toner material, in particular the surface layer of the toner image, overheated and thereby selectively damaged.
  • the melting of the toner image fixed on the image carrier substrate on its surface causes the liquid toner to begin to flow, so that when it has completely dissolved, it has a very smooth surface and thus a high gloss.
  • the degree of melting that is, the extent to which the toner image is melted on its surface, and the duration of the melting, ie how long the toner layer is kept in the liquid state so that it can deliquesce, enables precise influencing of the toner image gloss.
  • the already fixed toner image need not be completely remelted to affect its gloss, but only the top layer, so that the energy required for this is only small. It can be adjusted practically any gloss level, ie from matte to glossy, without the need for each exchange of parts of the fixing is required.
  • the toner image is melted in a first processing step so far that sets a relatively high gloss, and that in a subsequent, second processing step, the toner image is subjected to so much heat energy that at least parts of the toner material, in particular the surface layer of the toner image, overheated and thus selectively damaged.
  • the toner material is evaporated or oxidation takes place, resulting in both cases in a rougher surface and thus reduced gloss.
  • the degree of damage of the toner image surface can be selectively influenced by various measures.
  • a first possibility is to heat a very thin, near-surface toner layer of the toner image, which creates tensions in this toner layer which lead to wrinkles or waves of the toner image surface.
  • the surface is uneven or rough, resulting in a reduction of the gloss.
  • Another possibility is to heat the entire toner image, while the image carrier substrate, which consists for example of paper, remains cold and is optionally cooled for this purpose. Due to the excessive heating of the toner material, bubbles form in the toner image which, in turn, increase the surface roughness of the toner image.
  • the color saturation level can be reduced, whereby the influence on the color saturation level can be minimized by targeted process control.
  • the fixing means for fixing the toner image on the image carrier substrate for the first time has a heater having at least one hot roller, this hot roller can be used for first fixing almost all toner images regardless of the glossiness of the respective toner image when finished is. If the gloss of the toner image fixed by means of the hot rollers on the image carrier substrate is to be changed, then in a second step the surface of the toner image is aftertreated in the desired manner, ie melted and subsequently cooled again, so that the degree of melting is dependent and the duration of how long the toner layer is maintained in the liquid phase, the toner image then has a higher or decreased gloss compared to the initial state.
  • the reheating of the already fixed toner image is preferably carried out by means of a contactless heating / reflow process.
  • the advantages of the method according to the invention also arise when the actual fixing of the toner image on the image carrier substrate takes place by means of a radiation device instead of hot rollers or the like, ie without contact, since the radiation device only acts on the toner image with electromagnetic radiation and not in mechanical contact is made with the toner image.
  • the setting of the gloss of the already fixed on the image carrier substrate toner image by means of a preferably non-contact heating method.
  • the "degree” of re-melting of the surface of the already fixed from the image carrier substrate toner image can be up to 100%.
  • the toner image surface is completely melted and can deliquesce, resulting in a very smooth surface and thus a very high gloss.
  • the degree of fusion may also be less than 100%, that is, the surface of a toner layer is only partially melted so that parts of this toner layer still in solid form are in the "melt".
  • the toner image is subjected to two successive electromagnetic radiation pulses, wherein the duration of the first radiation pulse may be greater than the time duration of the second radiation pulse.
  • a "radiation pulse” is understood to mean a flash of light which acts only briefly on the toner image.
  • the radiation of the flash of light lies in a specific, preferably adjustable wavelength range, in particular in the UV range.
  • the first radiation pulse may for example be very short and have a very high energy intensity, so that the surface of the toner image is melted while passing through the second, preferably very short-lasting radiation pulse, a reduction of the gloss of the toner image surface is achieved.
  • the intensity of the two radiation pulses can therefore be varied to influence the gloss.
  • a high intensity of at least the first radiation pulse can therefore initially lead to a high gloss, wherein this gloss is selectively changed by the second radiation pulse.
  • the toner image is fixed by means of a heater mechanically contacting the toner image and that in a subsequent processing step, the fixed toner image with electromagnetic radiation or multiple radiation pulses is applied.
  • the toner image has areas of different gloss.
  • the toner image has areas of different gloss.
  • the gloss is reduced more than in the areas of lower toner density. The reason for this is that a higher density toner layer better absorbs the electromagnetic radiation. Due to the different, toner-density-dependent gloss reduction, a uniform gloss can be set over the entire toner image.
  • the toner image fixed on the image carrier substrate it is subjected to pulsed or continuous electromagnetic radiation in the UV range.
  • the radiation of color toners is absorbed substantially uniformly, while, for example, the paper-based image carrier substrate absorbs only very little radiation in the UV range. Due to the limited wavelength range of the radiation can thus be ensured that the paper is not damaged by this radiation, which may have a high intensity.
  • Radiation sources are often used which emit not only radiation in the UV range, but also in the visible range, in which the different colors (cyan, magenta, black, yellow or mixed color) having color toner absorb the radiation differently well.
  • the visible wavelength range paper absorbs the radiation very well, so that at high radiation intensity, damage to the paper can not be ruled out.
  • the electromagnetic radiation is filtered such that the toner image is only exposed to radiation in the UV range.
  • An embodiment of the method is also preferred, which is characterized in that the toner image is subjected to a plurality of successive electromagnetic radiation pulses, the duration and / or intensity of the radiation pulses being of different lengths or high.
  • each of the radiation pulses has sufficient energy to heat the toner image or the near-surface region of the toner image to the extent that it melts and the toner can melt.
  • the energy of each of the radiation pulses is not sufficient to melt the toner and that the toner image is only melted when it was subjected to a plurality of radiation pulses.
  • Each one of the radiation pulses can therefore only enter a part of the total amount of energy required to melt the toner.
  • the energy of each radiation pulse is the same.
  • the first radiation pulse has the greatest energy and that the energy of each further radiation pulse is less than that of the respective preceding radiation pulse.
  • At least two successive radiation pulses are applied in succession to the toner image. There is thus a pause between the radiation pulses, so that the heat introduced into the toner image by means of the first radiation pulse can dissipate before the second radiation pulse is applied to the toner image.
  • three radiation pulses with an energy of 0.5 J / cm 2 with a duration of 0.5 ms and a pause between two successive radiation pulses of 5 ms are applied to the toner image.
  • the first radiation pulse heats the toner image in the near-surface region of the toner image to a thickness of about 3 ⁇ m, resulting in limited smoothing of the toner image surface.
  • the at least partially liquefied toner layer becomes solid, and about 5 ms after the first radiation pulse, most of the heat in the toner image has dissipated.
  • the second radiation pulse is applied to the toner image having sufficient energy to remelt the uppermost toner layer, and then the third radiation pulse, which eventually melts the toner layer once more. Additional radiation pulses may be applied to the toner image, if necessary. It is important that to achieve a high gloss, the top toner layer a sufficient time on a heated sufficiently high temperature, so that this toner layer smoothes to the desired extent and thus sets a high gloss.
  • the energy of each one of the radiation pulses is only so great that damage to the toner image due to overheating of the toner, resulting in thickening or oxidation of the toner material, is avoided.
  • At least one, preferably a plurality of short and low-energy radiation pulses are applied to the toner image.
  • short is meant a duration of less than 0.5 ms and by "low energy” an energy of less than 0.5 J / cm 2 , wherein preferably there is a break between two consecutive radiation pulses.
  • an exemplary embodiment of the method is characterized in that the toner image is melted to such an extent in a first processing step that a relatively high gloss is established, and that in a subsequent, second processing step, the toner image is subjected to so much heat energy in that at least parts of the toner material, in particular the surface layer of the toner image, are overheated and thereby deliberately damaged.
  • the toner material is evaporated or oxidation takes place, resulting in both cases in a rougher surface and thus reduced gloss.
  • the degree of damage to the Tohervonober Assembly can be influenced by various measures targeted.
  • a first possibility is to heat a very thin, near-surface toner layer of the toner image, which creates tensions in this toner layer which lead to wrinkles or waves of the toner image surface. As a result, the surface is uneven or rough, resulting in a reduction of the gloss.
  • Another possibility is to heat the entire toner image, while the image carrier substrate, which consists for example of paper, remains cold and is optionally cooled for this purpose. Due to the excessive heating of the toner material, bubbles form in the toner image, which in turn causes the surface roughness of the toner image rise.
  • the color saturation level can be reduced, whereby the influence on the color saturation level can be minimized by targeted process control.
  • an image recording apparatus with the features of claim 15 is also proposed.
  • This comprises a fixing device for fixing a toner image on an image carrier substrate, wherein the fixing device has at least one roller over which the image carrier substrate is guided.
  • the image recording device is characterized in that the roller is formed drum-shaped and at least whose sheath consists of a transparent material and that inside the roller, a radiation means for applying the electromagnetic radiation to the toner image for the purpose of fixing the toner image on the substrate is arranged.
  • the arranged inside the roller radiation means thus provides the energy required to melt the upper toner layer or the entire toner image optional, while the image carrier substrate with the toner image thereon rests against the outer surface of the roll.
  • the device is characterized by a compact and space-saving design.
  • the device according to the invention can be used reliably even at high process speeds.
  • the device according to the invention can be used both for fixing the toner image on the image carrier substrate for the first time and for adjusting the gloss of a toner image which has already been fixed on the image carrier substrate in a preceding step.
  • the radiation device emits electromagnetic radiation and / or radiation pulses whose wavelength range is chosen such that they penetrate, at least for the most part, the jacket of the roller.
  • the pulsed or continuous radiation is therefore not absorbed by the roller shell material, so that the roller is at least largely not heated.
  • the radiation merely heats the toner image applied to the outer surface of the roll.
  • the toner image is subjected to at least one radiation pulse which is shorter than the contact time between the roller and the toner image.
  • the energy of the radiation pulse preferably heats only the uppermost toner layer of the toner image, which thereby at least partially melts, so that the structure of the outer roll shell is impressed.
  • the roll, the unfused portion of the toner image, and the image carrier substrate then cool the heated top toner layer below its glass transition temperature T g in a very short time. This time is shorter than the contact time between the toner image and the roll.
  • the previously liquefied toner layer is therefore in a solid state form before the toner image is lifted together with the substrate from the outer shell of the roll.
  • the roller or the shell of the roller made of a material having a high thermal conductivity. This has the advantage that the toner can be cooled very quickly so that a good separation of the toner image from the roll can be achieved and sticking of the toner image to the roll, preferably without the aid of a release agent, can be prevented.
  • the fixing roller is made of quartz glass.
  • image carrier substrate means all objects and materials on which a liquid or dry toner, preferably smudge-proof, can be fixed.
  • the image carrier substrate may be, for example, a paper sheet or a paper web.
  • the image recording apparatus described below is generally applicable. It may be, for example, as an electrographic or electrophotographic Be configured process printing or copying machine. Image recording devices of the type discussed here are basically known, so that their structure and function will not be discussed in detail here.
  • FIG. 1 shows a section of an embodiment of the image recording device 1, namely a fixing device 3, which comprises a roller 7 which can be driven for rotation about an axis 5.
  • a fixing device which comprises a roller 7 which can be driven for rotation about an axis 5.
  • an arcuate image carrier substrate 9 is guided on the outside of the shell 11 of the roller 7 here.
  • the image carrier substrate 9 is located with its not shown toner image having flat side 13 on the outer circumferential surface 15 of the roller 7 at.
  • the image carrier substrate 13 is guided by a transfer area in a transfer region, past a radiation device 17 for influencing or controlling the gloss of the toner image on the image carrier substrate 9.
  • the jacket 11 of the roller 7 is made of a transparent, that is translucent material, which preferably has a high thermal conductivity. Alternatively, the jacket 11 may be made of quartz glass.
  • the roller 7 may be closed at its front ends by means not shown lid.
  • the radiation device 17 is arranged fixedly in the interior 19 of the roller 7, that is, while the radiation device 17 is in a constant position, the jacket 11 of the roller 7 moves relative to the radiation device 17.
  • the radiation device 17 has a light source 21, which is formed for example by a xenon flash lamp, xenon-mercury flash lamp, a laser or the like.
  • the light source 21 is arranged here purely by way of example in a deflector 23 which has an opening towards a fixing region.
  • the image carrier substrate 9 resting on the outer circumferential surface 15 of the roller 7 is acted upon by electromagnetic radiation 25 which at least for the most part penetrates the light-transmissive jacket 11 and which is located on the flat side 13 of the image carrier substrate 9 the outer circumferential surface 15 of the roller 7 adjacent toner image heated. Due to the existing of a translucent material shell 11 is-if any- only a small part of the electromagnetic radiation from the roller 7 is absorbed.
  • the radiation device 17 is designed such that the electromagnetic radiation 25 is clocked, which is referred to below as a radiation pulse, or continuously applied to the image carrier substrate 9.
  • the light source 21 is preferably designed such that it only emits radiation in the UV range. If the light source 21 also emits, for example, in the visible infrared range in addition to radiation in the UV range, then a radiation filter can be used which is arranged in the radiation path between the light source and the toner image, which filters the radiation emitted by the light source, so that only Radiation in the UV range impinges on the toner image.
  • the fixing device 3 further comprises a pressure roller 27, which is rotatable about an axis 29. At least the outer circumferential surface 31 of the pressure roller 27 consists of a flexible, in particular soft and deformable material.
  • the pressure roller 27 is - as indicated by a double arrow 33 - in the direction of the outer circumferential surface 15 of the roller 7 and in the opposite direction by means of an adjusting device, not shown displaced.
  • the pressure roller 27 can be pressed with an adjustable force on the outer circumferential surface 15 of the roller 7. By pressing the outer circumferential surface 31 of the pressure roller 27 is quasi flattened due to their flexibility and lies down over a certain peripheral region of the roller 7 on the outer circumferential surface 15 at.
  • a nip is formed, which is for example 5 mm long and through which the image carrier substrate 9 is guided.
  • the task of the pressure roller 27 is to press the toner image at least partially melted with the aid of the radiation device 17 on the flat side 13 of the image carrier substrate 9 against the outer circumferential surface 15 of the roller 7.
  • the toner image is already fixed on the image carrier substrate 9 in a preceding process step, before it is guided past the radiation device 17.
  • the inventive method readily. This provides that after the toner image has been fixed by heating on the image carrier substrate 9, the toner image at least once more heat is supplied so that the toner image is melted at its surface or in its near-surface region either completely or at least partially. In the exemplary embodiment according to FIG. 1, this takes place with the aid of the radiation device 17, while the image carrier substrate 9 bears against its outer lateral surfaces 15 or with a defined force by the pressure roller 27 is pressed thereto.
  • the degree and / or the duration of the melting is set according to the invention as a function of the desired toner image gloss.
  • the structure of the outer circumferential surface 15 is virtually impressed into the at least partially liquefied toner image. Since the gloss of the toner image is largely determined by the roughness of the toner image on its surface, the toner image gloss is thus determined by the structure or surface roughness of the Au- touchmantel measurements 15 of the roller 7. If the toner image is to obtain a high gloss, the outer circumferential surface 15 of the roller 7 must be correspondingly smooth, while in a less shiny, such as matte toner image, the outer circumferential surface 15 has a corresponding roughness.
  • the toner image After the uppermost toner layer of the toner image has been melted by means of the radiation device 17, the toner image cools in a very short time so that it completely in a solid state and before the image carrier substrate 9 lifted from the roller 7 and to a subsequent part the device 1 is transferred.
  • the liquefied, near-surface layer of the toner image is thereby cooled by the underlying, solid toner layer, the image carrier substrate 9 and by the roller 7.
  • FIG. 2 shows a schematic representation of a further exemplary embodiment of the image recording device 1, namely a radiation device 17, as described with reference to FIG.
  • the radiation device 17 has a constant, fixed position within the image recording device 1.
  • the image carrier substrate 9 is guided past the radiation device 17 by means of a transport device, not shown.
  • An imaginary transport plane E, in which the image carrier substrate 9 is located, is indicated by a dashed line.
  • the radiation device 17 is designed and aligned with respect to the transport plane E such that the electromagnetic radiation 25 or the radiation pulses (light flashes) impinge on the surface 35 of an already fixed toner image 37 applied on the flat side 13 of the image carrier substrate 9 at an angle ⁇ is less than 90 °.
  • the fixing device 3 described with reference to Figures 1 and 2 readily due to their design and operation either optional for first fixing a transferred to an image carrier substrate toner image and for influencing or controlling the gloss of a already fixed in a previous process step on an image carrier substrate toner image can be used.
  • the fixing device 3 can therefore be used for the first-time melting of the toner image as well as alternatively for the targeted influencing of the uppermost toner layer of the already fixed toner image for the purpose of selectively influencing the toner image gloss.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)
  • Control Of Resistance Heating (AREA)
  • Color Electrophotography (AREA)
EP01127117A 2000-12-22 2001-11-15 Verfahren zur Steuerung des Glanzes eines Tonerbildes und digitale Bildaufzeichnungsvorrichtung Expired - Lifetime EP1217458B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10064566 2000-12-22
DE10064566A DE10064566A1 (de) 2000-12-22 2000-12-22 Verfahren zur Steuerung des Glanzes eines Tonerbildes und digitale Bildaufzeichnungsvorrichtung

Publications (3)

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EP1217458A2 EP1217458A2 (de) 2002-06-26
EP1217458A3 EP1217458A3 (de) 2006-02-01
EP1217458B1 true EP1217458B1 (de) 2007-07-25

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Country Link
US (1) US6661993B2 (ja)
EP (1) EP1217458B1 (ja)
JP (1) JP2002278359A (ja)
AT (1) ATE368244T1 (ja)
DE (2) DE10064566A1 (ja)

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US8548368B2 (en) 2009-02-10 2013-10-01 Oce Technologies B.V. Method and apparatus for fusing a recording material on a medium

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EP1217458A2 (de) 2002-06-26
US6661993B2 (en) 2003-12-09
DE10064566A1 (de) 2002-06-27
DE50112759D1 (de) 2007-09-06
EP1217458A3 (de) 2006-02-01
ATE368244T1 (de) 2007-08-15
US20020094220A1 (en) 2002-07-18

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