BE1019567A3 - DEVICE FOR AFTER TREATMENT OF MEDIA PRINTED WITH INK-JET. - Google Patents

Abstract

Device (10) for post-treatment of a medium (1) printed with ink-jet technology with an ink comprising both a solvent and a UV-curable component, the medium in use according to a direction of passage through the device ( 10), comprising (according to the direction of passage of the medium) a device (12) for heating the medium (1) and / or ink deposited on the medium to evaporate the solvent, followed by a device (13) ) comprising a source (131) of UV light for subjecting the deposited ink to UV radiation.

Description

DEVICE FOR AFTER TREATMENT OF PRINTED WITH INK-JET

MEDIA

Technical area

The invention relates to the field of devices for ink-jet printing of media of various kinds. More specifically, the invention relates to devices that can post-treat the printed media and in particular fix the deposited ink on the media.

State of the art

There are different types of inks for %% ^ 74ie:% vPrintenv, including, including, polyester-based ^ min-Jcf, and UV-curing inks.

Solvent-based inks have the advantage of grain, allowing them to form a very H $$$ - sharp and sharp image. After the dilution, van; "Solvent, the ink will dry out on the medium. , TIn sopmi ^ e-, Ί, cases,: eg ,. when printing ,. ya-n.v · βτρ, ίτ, cent concentrations, ink, after printing. a jdr_og.ing.s or yer heating step must be provided. ,,. .ic.c. . -u .. · -. ·: good ιnkc Can mm:, UV-curable inks are coarser in grain. By irradiating with ultraviolet (UV) light, the ink hardens Sé5nd ° Ç'F · mg & iwm ·. · '.. This provides a faster ink fixation with solvent-based ink. inks. After the journals, each time. an irradiation step. .be provided.

".-i" =. · - - ^ ~; .] .n k l and--. ^ rri gVypjiscljt, r |, get .. 'a' UV light source attached to 'the "print head

1. · .; :. er.:..·· nven the advantage ypel .. Γί. ', Γι-' 're o .vn: ;;;': / "they set up a very, whereby it hardens the newly deposited ink while moving the An additional advantage of UV-curable inks is that they allow you to print a wider range of media.

Hybrid ink compositions have recently been developed. The term hybrid ink is understood to mean an ink composition comprising both a solvent and a UV-curing component. As with solvent-based inks, these inks allow a limited possibility of flowing onto the medium, making any printing errors less visible compared to the traditional UV-curable inks. Due to the finer composition, shiny prints can be obtained, which is not or hardly possible with the classical UV-curable inks. .On the other hand,. · Wprplen through. . . by means of UV curing prints - obtained · that are ready for use. ".... li. .. ... r {0 (006) Hybrid inks can be used on existing ink-jet printers, but have a different * w ^ w. i1. 'f ... bi c; n.pb treatment. In particular, it is advisable to allow the solvent to evaporate completely before performing a UV cure, existing ink-jet printers, etc. are not, provided for this post-treatment, an adaptation, ep / or addition of existing ones. ink-jet printing equipment dr. ingj;

J. L: "..,; '1' · '· <i' 11 '· / - Hcl "C'Ί Γ · O ^ {£ 007] ....... The present invention has, as a consequence,. to provide a solution to the above problem .. An additional object of the invention is to provide devices for the after-treatment of hybrid pink-gp printed media that work efficiently and mating. Another object of the invention is to provide devices that can be flexibly .... wpr \ denr. deployed, depending on the invention. the needs, where the existing equipment is used to the maximum.

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Another object of the invention is to minimize media loss (material loss) when printing with hybrid inks. especially when printing from a roll.

Accordingly, according to aspects of the invention, there is provided an apparatus for post-treating (or fixing) a printed medium, as set forth in the appended claims. Aspects of the invention are applicable to media printed with an ink by ink-jet technology, and particularly applicable to media printed with hybrid inks as described above.

In devices according to the invention, the medium in use: according to ..., a dispensing device through the device. Therefore, preferably, a device, including a medium, is a medium. The device comprises (according to the direction of transfer of the medium) a device. . vo, or., the ^ erv / poor. ·. of the medium and / or on the medium ... ne.e, rge laid in-kti ,. followed by a device comprising a source of (jy-1-cht.cht. for submitting the deposited., injector to. UV radiation. ...

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[0013] Preferably, devices are according to the. Egg, egg; discovery. . provided for the after-treatment, 'a Kmedium that. g.epr.in-t; with an ink ,, which is both a solvent and a

Your curative component comprises, wherein the heating for heating is provided. ..to the solvent ..., dogi}, .v ^ e ^ vapor ^ n vporaleer: the. ink to UV radiation is subject to (pe, before the medium is passed through the device for subjecting to UV radiation). Such devices allow the newly developed hybrid to ink types., to be fixed so that they can be used on an industrial scale. vex /.- ct .. · .;; 11 O.: U ex eg U, e can be used., xi.j.xL ·, jrv .. .,. ". ·.: · ': · Oron. Van

UV - xi cht. "· Ο. ...;: -O 0:, 0: .- j.nhp agn UV-s: r;, [0.012; 1..: · · ... ··. ·.

Devices according to the invention are particularly suitable for use with ink-jet printing techniques. This term must be interpreted broadly and refers to all techniques that lay down an ink on the basis of a grid of points (so-called "dot matrix" techniques).

Devices according to the invention preferably comprise a conveyor belt for passing through the medium and a device for sucking the medium against the conveyor belt, the conveyor belt and the device for subjecting to UV radiation being arranged substantially opposite each other. The device for sucking in the medium is preferably provided for moving away from underneath the medium. suction r, c: The conveyor belt takes over the drive of the medium upon reaching. from the end of a roll, such that. ... loss of, - ^. medium "at the role end. be eliminated. Di, t lpyert,. A cost saving. . . In devices according to the invention, the device for subjecting to UV radiation is preferably arranged such that, in use, it is medium-sized, mainly is passed through vertically ,. Veelrel, eke.nm (e, t.,., The usual horizontal transit, .. 'as a result of this, devices become more compact so that they hardly take place, rather than' existing systems (for e.g. solvent evaporation............ an optical element for applying the UV radiation to the medium ... _] ^

Bee. devices according to the invention (ip; at least a part of) the device for subjecting agirr; gUV radiation. preferably adjustable ... in.,. highest ... relative to. of the medium. This has the advantage that the UV radiation can be applied to the top surface of the medium each time. ·; no / focused, so that the same quality of UV treatment can be provided, regardless of the thickness of the medium.

. The source of UV light preferably extends in a transverse direction to the feed direction of the medium.

Preferably, the source of UV light is statically arranged.

Preferably, the source of UV light is a source of mainly UV-C radiation.

Devices according to the invention preferably comprise means provided for actively discharging air from around the source of UV light. These means preferably comprise at least one fan arranged for air from. around the source of. UV light discharge ... Preferably, the fan is arranged so that. the air in the direction of flow with respect to the passage through the medium is discharged. This has the advantage that, since the discharged air is warm due to the heat production from both sources of UV light, - • - ... -: - - - - - - - - - - - this warm air, is used to "dry" the ink / evaporate the solvent. The rgsu yield is. .a better evaporation / drying.,. t.en, ^ pefl pf.f ipi.enter use of energy.

[0023] The fan is preferably arranged in, or a device for submitting to, a large amount of material, along the supply side of the medium. . ,,

Bij. preferred devices include oe'-o J ·· ·. .ct vl - u to luavc pypreenkpmstig .. the invention a screen .. to., the, dofop, ^. the fan. bend exhaust air to the medium.

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Hiprdp.pr increases the efficiency of evaporation ^ drogincf ,. ^ pc 10,025], ... ... Preferably, the at least one fan is pprj.gekqzen_ to a predetermined, flow rate wpg ^ .to f ;; blpzen.tin .. function of the heat production from the source of UV light,, z, and so: the temperature of the source of UV light .. inside, an i * -: · \ _ 'Ct rj l' L. "" * - "2 1 ... 1" 2; Ί1 ï d'ci j egg f 2 .-:.:. V- ·· ’···; _:, .-. "; • iQ.Ö23-j ’. '' .- '. svfv'.p Keep in or predetermined temperature range, without using a thermostatic control.

The device for subjecting to UV radiation on the supply side and / or discharge side of the medium preferably comprises at least two screens arranged one behind the other in order to protect a user against stray light.

The device for heating the medium preferably comprises at least one heating element, which is arranged such that, in use, the medium is passed over the heating element. The heating element is therefore arranged on the underside of the feed-through path for the medium. In addition, or alternatively, the device for heating the medium comprises preferably at least one heating element, that is. ppg.eset When in use the medium is passed under the heating element hppn. Such a heating element is at the top of the heating element. Media-through-feed path. [9028] Preferably, devices according to the invention comprise a device for rolling up the medium. ...

Devices according to the invention, preferably as a printer separate device. unit so that it can be attached to a printer. opge.stelçL This. ^ ... has the advantage that the device., cap. are switched on. when the printer · with hybrid ink. works. When other ink compositions

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used, is the. device for, after-treatment.,. no, needed, and can be removed. Therefore, the user does not have to. to invest in a completely new .printer, but he / she only needs the device. .agn, te s, e $ iatffen, which saves costs. In addition, the .gpuserpr .op., This way the existing machinery. as,, flexible use possible, according to the demand for prints with [0C2D .:,. . "i. m 1; : specific inks (hybrid or not). Alternatively, these devices can be integrated into a printer:

Aspects of the invention also relate to methods performed by devices according to the invention. "

Description of the figures

Figure 1 represents a cross-section of a device according to the invention, which is built as a separate unit and which is placed on an ink-jet printer.

Figure 2 represents a cross-section of an ink-jet printer, with an integrated device correspondingly. the invention. (,, .. Q 0 f can, d. · - ·.. · / · .1.. - - -. _ ·. Printer.

DETAILED DESCRIPTION OF THE INVENTION r, ooV

^ 0.033] ·. .. Figure. .1. shows. a- . . design. 4 .1 "0 correspondingly. The invention for the after-treatment (fixing) of media printed with hybrid ink. The institution. . 10 .... is. provided as a unit separate from the printer 9, such that the device, .., 1.0 can print when the printer .9 works with, hybrid, cink; t-assemblies (counts. When other ink composition ^ gp device 10, device 10 is not necessary, and wounds can be removed, so that the user does not have to enter a completely new., pr, inter, but. ^ r , hpp, ft hifj / unless i only have to purchase the device 10, which saves costs, and in this way the user can switch on the machine, so flexible ... mg.geli j, k utilizing, in accordance with the demand for prints with well defined, den, pinkten f.:f r.abe trade and CQ034], ... The printer 9. can be a known ink This means, for example, a pedestal .91, a feed path 92 ... a medium, a medium,, a drive device 93 and a print head. ^ 94: ·:.;: R. ·: -. ·: ··· / rough ink s am ans le:.; Nen: .- :: ./.-. /:: -: .. · · -M also includes a carriage 95. The drive device 93 comprises a drive roller 931 for advancing the medium through the printer 9. The medium is pressed against the drive roller by means of a pressure roller '932'. : ·.

When printer 9 is provided to deposit hybrid ink compositions on a medium by means of ink-jet techniques, the printhead 94 will contain these hybrid inks. Ink drops are shot from the printhead 94 onto the medium 1, while the carriage 95 moves according to the width of the medium. After such a pass, the medium is passed on further by means of the drive device 93. Then ink is deposited in a new pass.

. After printing with hybrid inks, use is made of the after-treatment device (de-fixation) of the ink. ^ UV curing of the ink. n, ... v, r ^ x "-,

The device 10 is provided with a cap feed path 11. the medium 1. The after-treatment proceeds by letting medium follow this transit path 11. ,:! (_.

In the direction of transit of the media TV 1 is-. First, a heating device .12 storage device, heating device 12 is provided around the medium. heat the deposited ink, thereby allowing the sol, vent tg, to evaporate. In this way the print is prepared for UV treatment. . ...

r [.0vQ39]. Heater 12 may include heating elements 121 arranged on the underside of the bottom. .it. feed-through path 11. This means that the liquid elements 121 are passed over the heating elements 121. P.e ^ 3 device can additionally, or as. alternative, elements, elements 122 which are arranged. The upper side of the feed-through path 11. That is, the medium is passed through the heating elements 122. Heating at the top is recommended for thicker media. The heating elements 121, 122 can, for example, be resistors or infrared heaters.

Further, according to the feed-through path 11, a device 13 for UV treatment is arranged. The device 13 comprises a source 131 of UV radiation (UV light). The source 131 of UV light is arranged along the print side (ink laid down) and is preferably arranged statically. This means that the source 131 and the UV treatment device 13 preferably do not move with the medium.

The source 131 of UV light (UV source) is preferably elongated and extends parallel to the feed-through path 11. (parallel to the medium 1) and according to a transverse direction with respect to the feed-through direction. The medium 1. This source 131 may, for example, be one or one. other UV emitters which span the entire width of the device 10 (the entire width of the medium.) The UV source 131 is preferably a line width.

Preferably, the UV light emitted by the UV source 131 is focused (on one line). a surface corresponding to the top surface, (of the medium (surface in which the ink is located) .. To this end, the T / yV treatment device 13 comprises, for example, optically and optically. element, such as, for example, a reflector 132, the opel, switch, has a focal point (line) and, if desired, is arranged such that in use. the focal point. (- line), coincides with the exact plane of the medium. On "this yipvrv .. .. i; i. <·, '. ·.;, C; yy Ij; tr ) way, a maximum of UV energy is concentrated there. she is needed. This in turn makes it possible to limit the power of the dp ^ yVp source. , r. [0Q43] Bee. devices 10 which provide; ^ in to mg, dia., of varying thicknesses. handle, ... the control device 13 is preferably adjustable, in the first. \; · - ·. : ·. · -. 3 ννη; mediir · ’·. '· .. Ie; UV height (in the direction mainly perpendicular to the plane of the transit path 11). This means that at least a part of the device 13 is adjustable, so that the focal point (line) is adjustable in the direction indicated.

The UV source 131 is preferably provided to substantially emit UV-C radiation. The UV-curing components of the hybrid ink compositions are typically sensitive to this radiation form.

To avoid exposure of the user to UV radiation, the UV source 131 is cased. A cap 133 surrounds the UV source 131 and the reflector 132. The cap 133 is preferably only open on the side of the lead-through path 11.

Preferably, an additional cap is used. . . V.i a r, yoprzien, which is over the first cap, on diffuse effects. at the edge (at the, on, t and output openings for the medium). limit. This is shown in Figure 2. The UV treatment arrangement 2.3 dnG, Figure 2 has been tilted a quarter turn, medium, .1 now vertically through the device, .23 becomes 1 . c · i. · ... .c. . :? 't. : Z | f i .g, e, yo, erd. The UV treatment device comprises a first cap 2.33 * which shields the UV source 231 and the reflector 232. ,A , :. 1 α. The second cap 234 has been voted over the first cap 233. This results in the fact that on the supply side 235 and on the discharge side of the medium 1 a double shielding is provided, formed by the walls of the two caps 233 and 2. The double casing can therefore; pgk ^ yervangen .w (orders ,,. through, a single hood that is provided along the supply and removal sides (d ,, e of ,,, the medium with two (or more)) behind, walls or screens lying together.., _, ·, U, i u.vy'C. · 1 ... -κ-ί.;, '·. K and. U1. UV source, such as, for example, a gas discharge lamp, typically, also heat energy, which, for example, is discharged to not to limit the lifespan of the source too much and to prevent damage to the medium..Typically, a UV source, and a UV-C source in particular, has a temperature range in which the source works optimally. a too low efficiency of the source On the other hand, a too high temperature significantly limits the lifespan of the source UV-C gas discharge lamps preferably operate in a temperature range between 100 ° C and 140 ° C, preferably between 100 ° C and 130 ° C .

The temperature of the UV source 131, or even of the entire UV treatment device 13 is therefore preferably maintained at a predetermined level. According to an aspect of the invention, this is achieved by providing one or more fans 24 which are arranged to discharge the air around the UV source 131. "Figure 2 shows an example.

As shown in Figure 2 ,. The fans 24 are preferably arranged in or with the UY treatment device 23, preferably on the front side 235 of the medium 1. In particular, the YEP fans 24 are arranged at preferably such. erected. The (warm) air discharged in countercurrent, against the discharge

feeding direction. of the medium 1. blown preferably to the medium 1 (feed-through path 21). This contributes. to the heating of the medium 1 and / or d, e .. ink *., L

The fans 24 are preferably set such that they discharge air from both the. space between, the reflector 232 and the medium 1, as well as, of the space below the one or more shielding caps 233, 234.

On the supply side 235 of the medium 1, J is. ....,.: Ue at,. · Preferably a screen 25 is provided, for the air from the 1 1 "· 1 '·' '. ·. deflecting the medium 1 (dporyoerpad -21-), resulting in "a more efficient evaporation of the solvent.,. -, vguuj. ta. U - - · ·. .-. ... .. i '..' UO Jd 1. Ge

. In certain cases. ,. can this ^ r- 'J v- -' · 1 ·· '": ·' · '" ·' 3 C * f ~ i Od? air outlet device (fans 24, screen 25) are sufficient

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as the only heating device 12 to do the solvent. evaporate. Additional heating elements 121, 122 are then superfluous.

Preferably, the fans 24 are selected so as to discharge a predetermined air flow rate depending on the heat production from the UV source 231. The predetermined air flow rate is selected such that the temperature of the UV source 231 and / or the temperature in the UV treatment device 23 remains within a predetermined range during use of the device without the use of thermostatic control.

The ambient temperature in most production areas where ink-jet printers are located is nevertheless kept within a certain range, because many mg of dia. Are very sensitive to atmospheric humidity and also because the viscosity of the inks is temperature dependent. isenshermostatic control of the UV treatment device. therefore superfluous when, the, vent, ilaboren are carefully selected as above, bes.chreyen ,. This leads to a simpler construction and a cost saving. ,. .........,., r; n, .c

. The device 10 for the after-treatment of media, as stated in Figure 1, is a separate unit separate from the ink jet. printer, "K9. In the actual case the device 10 comprises a yoetsbujc ^ pf frame ,, 16., ... on which. the. heating device (12), the LJ-Joe handling device 13 are arranged. The pedestal, .. 16, may be provided with wheels 161 to make the device ... 1.0 easy. to move ... r ^ .. 0

. . The device 10 can be provided with a device 17 for rolling up the device. gejorin; ter. ^ a treated medium 1. In such a case the medium 1 ppjr.pl is supplied, unrolled and fed through the printer 9, ^. ^ on help. at the end of the complete process, it is printed. ·:, -; · ·., ·; ··. Hours of mpdi. : ··. . ... crrli'ko medium rolled up. In technical terms, such a process is referred to as "roll to roll" printing.

In certain cases, it is not desirable to roll up the printed medium, but rather to cut the printed images on site. This is referred to in technical terms as "roll to sheet", printing.

Because of a longer treatment route when printing with hybrid inks, both methods have the disadvantage that at the end of a roll there is a large loss. This loss corresponds approximately to the distance between the drive device 93 and the UV treatment device 13.

The invention proposes a solution to minimize this. The institution. CL is provided with a conveyor belt 18, or the like, which is provided in the feed path 11, and at least ter. altitude of . dpt UV treatment device (namely, .the ... ,, the.hawk in the. complete printing process) is set up ...; The conveyor belt 18 is provided for transporting the medium 1 through the treatment device and, by preference, passes through at least below the UV treatment device r.13.

..... Preferably, the conveyor belt is 18. Provide for the execution of the medium 1 without slip. . : s ;; i. can be realized by raising a suction device 19 to suck the medium 1 against the conveyor belt 18. For example, The suction device. 19 prevents slip .t.uss (and: hpt medium. 1 and the conveyor belt 18. It also prevents the medium from coming under the UV treatment device 13, so that no longer in the focal plane. of the UV radiation,.,., The · conveyor belt · 18 and suction device ....., 19-, ^ lat, e ^ bij.geyplg to take the drive of the medium qye.r ( (v. the; drive roll 93, once. the end .. of .. The roll iUöiu. '..;. <for: ;; π is reached. In this way, a roll can be printed right to the end. , without loss of medium.

For the reasons mentioned above, the conveyor with suction device with "roll to sheet" can also enable error-free printing at the start of the medium.

The suction device 19 can be designed according to known principles, for example as a device that draws air away from under the medium. The conveyor belt 18 can be designed as a single belt that spans the entire width of the medium. In this case the band is provided with holes for extracting the air. The conveyor belt 18 can also be in the form of • (e) and, • of, • narrower, • conveyor belts, in addition to (et.), With the suction device 19 in between.

Jggf3] The arrangement of, conveyor: 1.8. ep opzp.ip device 19. has . In the case of roll-to-shear, the additional advantage is that thinner, flexible media can be fed more easily, without the risk of the medium rising or rising, , the institution. v. The medium. v.astgphpuden _ ^ pp e (d {e conveyor belt,, 'so that it can be easier. ... ,,,,, w.ord, and cut.. ·, _.,., ...... .......

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It should also be noted that thicker me, dia, | ,, such as. . : e.g. sheet material, narrow. can ^. become ppgero.ld. This one . are directly through the printer. also be routed flat through devices 10 corresponding to the pipe insert. Here too, the conveyor belt is not equipped with a suction device. 19..T. now, tig ,, pump this, the · drive of the medium. takes over once. this "from, the ... printer." comes. In . this last ... case. a transit path 11 of the transit path 11, such as Sh, in Figure 1. ... through ,, de rnrichni.r r "-:, - 'μ: ·:, ·! · :: op, dp transpo' r v:. rar:. worker.

Devices according to the invention can also be integrated in a printer 20, as represented in figure 2. The printer 20 of figure 2 is provided for "roll to roll" printing. The medium 1 is therefore unrolled from a roll 2 and guided to the print portion 90, where the drive roll and the print head are arranged (not shown). A · 96 pre-tensioner with possible end stop detection is typically provided. After it. medium 1 has passed through the printing portion 90, it is passed through the heating device 22, which may comprise a heating element 221, and then through the UV treatment device 23, as described above. Finally, the medium 1 is rolled up on a roll 3 in a roll-up device 27. , ..

Preferably at least ... is the. UV treatment device 23 arranged such that the. medium there ....... vertically, or approximately vertically,. is implemented. Vertical feed-through is understood to mean that: the, l0, bare feed-through direction of the medium 1 is one. angle: does not create an absolute value with '.de, · gravity line. greater than .30 °, preferably no greater than 15 °. With respect to the arrangement of Figure 1, the UV treatment device is tilted a quarter turn (about 90 °). This makes ._, the gehgle printer · .compacter, and therefore saves space ... Such a printer .. takes effect. hardly more takes place than a traditional printer, which is provided for the class kg of solvent-based or UV-curable inks.

The UV treatment device. . .23 may also be arranged obliquely, so that the medium is passed through at an angle to the center of gravity, so long as .. such an arrangement, an arrangement. saves space. Pitch of (and horizontal arrangement as shown in Figure 1).

In the above cases, the heater can be used. 2 are arranged in a curved part of hgt .Cl Cl tt.l! ..: ·: '. j Q "o C. C 1 ': C ü. Π y eea r' - u: v .. ·..... r. n-an" the one 1 V: door transit path 21, between the print section 90 (Where 'the' medium is fed horizontally) and the UV treatment installation 23.

A similar space saving can be achieved for the detached device 10 by tilting the UV treatment installation 13 in Figure 1 a quarter turn.

In this "vertical" arrangement, a conveyor belt 18 and a suction device 19 can be provided, with the same possibilities as in the flat arrangement as described above.

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0070; "- o."> ·; ng, can be a trans ace. to. ; : t noj 19 become forjzs;:, '· 9: :: o .o: .- ·· o. s dj. the via k. <e opst dt i rr o -. ; r. - ·· r ·. · _

Claims (9)

Device (10, 20) for after-treatment of a medium (1) printed with ink-jet, wherein the medium in use is fed through the device (10) according to a feed-through direction, comprising, according to the feed-through direction of the medium: a device (12, 22) for heating the medium (1) and / or ink deposited on the medium, followed by a device (13, 23) comprising a source (131, 231) of UV light for subjecting the ink deposited with UV radiation. Device (10, 20) according to claim 1, for the after-treatment of a medium (1) printed with an ink comprising both a solvent and a ... U-curing component, the device , (12, .. 22), .. prior to heating is provided to the solvent, do.n.vre, r.damp.and yppra.leer. the ink is subjected to UV radiation. .. „. rio ,, 3. Device (10) as claimed in claim 1 or 2, comprising a conveyor belt (18) for the supply of medium (1) and a medium. design . (19) for sucking in the medium (1) against the conveyor belt, wherein the conveyor belt (18) and the device (13) for UV-radiation are mainly subjected to tggenoyer.jgelk.to be no, -ppge put. Device (10) according to claim ^ 3, wherein ^. the .. device (19) for sucking .. the medium, is provided to provide air from below the medium. , te = «i; ··. . ·; .. ----, 1 n, y-na ipeng. Suck. · .. ....... ·; ..., ....... 5. Device (20). according to any one of the 3, 3 '- vapors claims, wherein the device. , (2.3.), For subjecting to UV radiation, such is included. that, in. use ,,,: the .medi.um (1) is essentially vertical ^ pp.rheei'i: wo, rdi ,, '? · -: ot sucking in transpc ": --ui. · · '- Just fresh The device (10, 20) according to any preceding claim, wherein the device (13, 23.) for subjecting to UV radiation comprises an optical element 1 (132/232) for focusing the UV radiation on the medium. Device (10, 20) according to any of the preceding claims, wherein to some extent a part of the device (13, 23) for subjecting to UV radiation is adjustable in a direction substantially perpendicular to the plane of the medium ( 1). The device (10, 20) of any preceding claim, wherein the source (131, 231) of UV light extends in a transverse direction to the feed-through direction of. the medium (11) · ...........,. 11 ,. voona.rr -.? ·· "Device (10, 2.0.)." - according to which each jvpprg ^ on; claim, wherein the source, (131, .. 23.1,), of, UV light, is statically arranged. ..., · „ The device (10, 20) of any preceding claim, wherein the source. (.131,., 23/4 / y / y Üblich, t .., a source of mainly UV-C radiation is .. vnui'jdu.iiK · '...... -. ··.> · - <J ··. I. · --F · 'ei? UöSi from cie Jnr: γ · πγ I p- 11. Device. (20). Vp.l.somewhere ... the same conclusion was reached. comprising at least one fan (24) accumulated on air. to blow away from around the source (231) of UV light in the counter-current direction with respect to the direction of the medium (1). . ,. rTI, li-hr .; 12 ... Device (20). according to; claim 1, wherein - the fan (2.4) is arranged in or on the device (23) for subjecting to supply, and along the supply line ( 235) of it. medium (1).> device (20) according to claim 11 or 12, comprising. a screen (25) every. by, the ^. fan. (2 4). exhaust air to the medium (1). v \ jO L money ·. . <>:>. . :. ·. . : '·, · Ί, ι; >. y a U,, U y-1,. Device (20) as claimed in claim 11, 12 or 13, wherein at least one fan, (. 2.4.) Is -, - is Cl - Vr t . c V v? n o; - 1 β t C 'Γ (; 4)., on ..; ·· ·. ·; ... of UV-- chosen to blow away a predetermined flow rate as a function of the heat production of the source (231) of UV light, thus the temperature of the source (231) of UV light within a predetermined temperature range without using a thermostatic control. Device (20) according to any of the preceding claims, wherein the device (23) for subjecting UV radiation to the supply side (235) and / or discharge side (236) of the medium (1) is at least two screens arranged one behind the other (233, 234) to protect a user against stray light. Device (10, 20) according to any of the preceding claims, wherein the device (12.22) heat the medium (1). at least one heating element (121) arranged in such a way that the medium (1) can be placed over the heating element. n-:,. (12.1), h, a,. r 3 · ''. ·. 17. Device (10) according to any of the preceding claims, wherein the device (12) is pre-heated from the device. medium at least one heating element c (, 1.22) .. pmvap, that is. It is arranged that, in use, the medium (including the heating element (122) is operated by means of an eight-l18 device according to the method of 10, 20). yppr, claiming, comprising a device (17, 27) for rolling up the me diunp on a roll (3.), a device (10) according to any of the preceding claims, which is a separate unit, so that it is connected to an ink-jet printer. (9) ..............:.......:. -jet printer (20), comprising a device according to any one of claims 1 to 18, which is integrated into the heat exchanger. ...... A. Fri.,. Fi 11 gs e. J. eme nto na.: R:. '.: -. ·.'.. '.