WO2012095144A1

WO2012095144A1 - Ink ribbon device comprising a readable code device, in particular an rfid-transponder for a matrix printer

Info

Publication number: WO2012095144A1
Application number: PCT/EP2011/006360
Authority: WO
Inventors: Paul Beck
Original assignee: Pernutec Gmbh
Priority date: 2011-01-13
Filing date: 2011-12-16
Publication date: 2012-07-19
Also published as: DE102011008514A1

Abstract

The invention relates to an ink ribbon device (2000) comprising an ink ribbon (2030) for a printing device, in particular for a matrix printer, characterised in that said ink ribbon device (2000) comprises a code device (2080), in particular an RFID-transponder (2080).

Description

Ribbon device with a readable code device,

in particular RFID transponder for a dot matrix printer

The invention relates to a ribbon device, device with a

Ribbon device, in particular for a dot matrix printer, a device for marking containers, in particular sample containers for medical samples with a printing device, comprising such a device

Ribbon device. State of the art

In laboratories in which medical samples, in particular tissue samples, for example in pathology, will be processed, the individual samples are stored patient-specifically in containers for further processing. The samples stored in the containers, for example tissue samples, are provided for automated processing and in particular also for identification with imprints, for example date imprints or else recognition imprints, for example barcodes. For this purpose, the samples of a

Indicator device supplied.

Such a device for marking containers, for

Tissue samples, for example, the system "Thermo Scientific Shandon

PrintMate ™ of Thermo Fisher Scientific Inc. At the time of the

Priority Notice published by Thermo Fisher Scientific Inc. is referenced.

Prior art systems had several disadvantages. One disadvantage, for example, was that they were designed only for the processing of batches, that is, for the processing of a large number of containers. Another disadvantage was the use of very expensive printing equipment. From DE 102 35 611 A1 a device for labeling laboratory articles made of glass has become known by means of a printer, wherein as printing technique an ink-jet printing method or a thermal transfer method is used. To view the labware, especially the flat glass slides

To label different locations, the print head can be slidably or pivotally mounted. A disadvantage of the device of DE 102 35 611 A1 was that a label of plastic carriers, in particular with

beveled edges was not possible, as well as a manual

Feed.

The US 6,951, 633 B1 also shows an apparatus for labeling

Microscope slides or cassettes for histological samples with one

Inkjet printhead, which system provides a manual feed such that a cartridge is manually inserted into the system, for which the entire automatic operation must be interrupted for more than 1 minute.

DE 8200185 U1 shows a printer with printing unit which printing documents from a stack can be fed automatically or manually by means of powered tractors. DE 82 00 185 U1 thus does not relate to the supply of containers or three-dimensional bodies, but to the supply of thin paper.

WO 2007/135 388 A1 shows a device for inscribing plastic cassettes by means of a thermal transfer process.

From US Pat. No. 6,572,824 B1, a system for labeling containers has become known, the supply taking place exclusively automatically.

All of the aforementioned printing devices are not those that use ink ribbons.

Ribbons are used in particular in dot-matrix printing. However, the use of ribbons in dot-matrix printing units has the disadvantage that the ribbons are very often used beyond the life of the ink ribbon addition, resulting in particular damage to the printhead of the

Nachdruckwerkes can lead through the tapes. It is also possible that the printed image does not adhere to the container, which in particular leads to problems in the use of solvents, such as acetone. Also, the machine readability of the printed image is often not guaranteed. Description of the invention

The object of the invention is thus to avoid the disadvantages of the prior art and in particular to provide a ribbon device with a ribbon, which avoids damage to the printhead and ensures a secure adherence of the printed image on the container.

According to the invention this object is achieved in that at a

Ribbon device, as used for example preferably in dot matrix printers, the ribbon device comprises a readable code device, in particular an RFID transponder.

The invention encompasses any type of code device with which information readable on the ink ribbon can be applied, for example optically readable barcodes, but in particular RFID transponders which are part of an RFID system.

An RFID (Radio Frequency Identification) transponder enables the

Automatic identification and localization of objects, thus greatly facilitating the collection of data. An RFID system consists of a transponder, which is located on or in the object and a

contains identifying code and a reader for reading this identifier. RFID transponders can be read inconspicuously with help a reader. By coupling the reader and the RFID transponder with the aid of a magnetic alternating field of short range, data can be transmitted and, secondly, the transponder can be supplied with energy. Only if larger ranges are to be achieved, one can become active

Use transponders with their own power supply. RFID transponders differ in terms of their transmission frequency and intended use. The structure of an RFI D transponder basically includes a

Antenna, an analogue circuit for receiving and transmitting (transceiver) and a digital circuit and a permanent memory. at

For more complex RFI D transponders, the digital circuit can be a microcontroller. The RFID transponder has at least one write-once and often readable memory which holds the invariable identity of the RFID transponder.

For example, information about the type or the type of the ink ribbon can be stored in an RFID transponder with a memory that can only be written once and multiple readable memory. Such

Information would be, for example, that the color of the ribbon of the

Ribbon device resistant to organic solvents, especially acetone resistant. This information is read when inserted into the printing device. Does the printer require acetone resistance for the printer?

Imprint with the help of the ribbon, so is an inserted ribbon

or a ribbon device only released when this

Specification is met. As a result, an accidentally faulty insertion or replacement is avoided.

Instead of an RFID transponder with a memory which can only be written once and readable memory, an optically readable bar code could be applied to the ribbon device with the same function, which in turn carries the specification, for example, acetone resistance as information. In the case of RFID transponders, in contrast to, for example, barcodes, it is possible for the RFI D transponder to have a rewritable memory in which information can be stored during its service life. In such RFI D transponder, for example, then information can be stored on how many printing operations with a ribbon

were executed.

In a preferred embodiment of the invention, the ink ribbon comprises a paint which ensures acetone resistance. This is possible for. B. with a color that after application to the cassette in one of

Printing device downstream device irradiated with UV light and thereby polymerized. As a result of the polymerization, the acetone resistance, i. H. the resistance to the solvent acetone

guaranteed. The color of the ribbon preferably also has one

Resistance to alcohols, xylene, paraffins and formaldehyde. in the

Unlike an ink includes a color for the ribbon color pigments.

Particularly preferably, after the lettering has been printed, the printed inscription can be irradiated with UV energy or UV light of an LED light source. The use of one or more LED (s) as

Light source has the advantage that the structure of the device compared to a device with UV lamp is greatly simplified. In particular, the use of LED allows a miniaturized design. In a particularly preferred embodiment, the rewritable RFID transponder comprises at least one memory area in which information about the number of printing operations can be stored.

Particularly preferably, the transponder comprises a micro-controller and / or a rewritable memory area. In this memory area, the number of prints made can be constantly updated and declared the tape as not usable, if a predetermined Number of printing operations has occurred, which is for example in the range of 1000 prints to 100,000 prints, preferably between 10,000 prints and 50,000 prints. By not being able to use the ribbon device with ribbon beyond the anticipated number of prints, damage to the printhead into which the ribbon is placed, such as a dot-matrix print head, is prevented. Furthermore, it is ensured that the printed inscription, in particular by solvents such as acetone, not go off and a secure adhesion is ensured. In particular, customer complaints can also be prevented in this way.

In addition to the ribbon device with ribbon, the invention also provides an apparatus for identifying individual sample containers. The device comprises a printing device with a ribbon device according to the invention with code device, in particular an RFID transponder.

Preferably, the pressure device of the device is designed such that it can be brought into at least two positions. In a first position the

Printing device takes place in the inventive device, the supply and / or discharge of the container to the printing device by means of supply and discharge devices automatically. If the printing device is moved to the second position, then no automatic feed, but individual

Containers can be manually fed to the printing device and individually printed individually.

It is particularly preferred if the movement into the first and the second position takes place in that the printing device, in particular the entire printing device with print head and ink ribbon, is designed pivotable about an axis. For example, in a first position, the printing device may be oriented so that the container to be labeled in a plane, for example, a plate plane, is supplied. If the side of the containers to be inscribed has a chamfer, then the printing device with the print head is tilted or pivoted with respect to the plane of the plate by the same angle that the chamfer has since the inscription surface and the print surface of the printhead are essentially in the same plane come lie. In a second position, the print head of the printing device is arranged so that a manual feed of the container from above is possible. In one embodiment, the second position is selected such that the

Printing device in a plane that is parallel to the disk plane, comes to rest.

By pivoting the printhead, but particularly the entire printing device for automatic and manual operation, the area used for automatic operation is spatially separated from the area used for manual operation. This makes it possible by a very short stop the automatic operation of less than 20 sec, preferably less than 10 sec, in particular less than 5 sec to label a cartridge manually. In particular, the automatic operation is only slightly affected by the spatial separation of automatic and manual area by a manual labeling of a cassette in its course. The automatic mode is briefly stopped while the print head or the

Printing device is moved to the position for manual operation and makes the label. In addition to the pivoting device for pivoting the entire

Printhead are of course other ways to move into different positions conceivable, for example, a vertical process of the print head. The pivoting about an axis is characterized by a simple construction.

To prevent an automatic feed, for example from a feeder, then occurs when the printhead in the position for manual Operation is pivoted, it is advantageous if a detection device for detecting the respective position of the print head, for example, the first position of the print head is provided. The detection device can be designed such that, as soon as the print head is pivoted out of the position in which an automatic feed takes place, it is put out of operation. The supply is then only possible manually. Such a detection device is, for example, a magnetic switch, which is closed in the case of the printing device or the print head is in the position for automatic operation. If the printing device is moved from the position for automatic operation to another position, the switch is opened and the automatic mode is interrupted.

It is particularly preferred if the printing device a

Dot matrix printing device comprising at least one dot matrix print head. The

The use of a dot-matrix printing device is particularly advantageous since such a printing device is distinguished on the one hand by high reliability and on the other by a robust construction. In particular, for example, in contrast to the inkjet printing method or

Laser printing method in the prior art, the durability of the print higher. Thus, when applied with dot matrix printers a high resistance to solvents, especially organic solvents and a high abrasion resistance of the applied mark.

Furthermore, due to the longer service life no frequent replacement is necessary, so that the life of the device is significantly increased compared to devices in the prior art.

It is particularly preferred if the supply and / or discharge device comprises a sliding and gripping device with which the container can be removed, for example, from a conveyor belt and moved to the printing position of the printing device. The gripping device then serves to be able to remove the container from the printing device after printing and in turn

For example, to position on a conveyor belt. In order to be able to process entire batches, it is advantageous if the device has a supply storage and a storage unit. The individual containers are from the supply memory, for example a

Transport device, which may preferably comprise a conveyor belt, fed to the sliding and gripping device. The sliding and gripping device in turn transfers this into the printing device. It is particularly preferred if the transport device is a circulating conveyor belt, in particular one or more roller chain (s) is (are).

In addition to the automated supply and discharge device is advantageously for manual supply and removal to the printing device in case this is spent, for example, in the second position, a guide receptacle is provided which supports the manual introduction to the printing device.

A particularly high throughput can be achieved when the

Supply memory, for example, designed as a carousel magazine, wherein the carousel magazine comprises a plurality of cassettes for receiving the containers. The individual cassettes can be removed from the carousel and filled individually. The carousel itself rotates and always provides a connection between the magazine and the conveyor belt. The stored in this magazine containers are then using the

Transport device and the sliding / gripping device supplied to the printing device

When using removable cassettes and a carousel magazine, it is possible to fill the individual cassettes outside the device and then insert it into the carousel. A filling of the device is no longer necessary.

In order to allow the expiration of printing when the printing device is moved to the first position, to be able to run automatically, is advantageous provided that the device comprises a control and regulating device, on the one hand, the printing device, the supply and discharge device, the

Supply memory and the storage memory controls. It is particularly preferred if the control / regulation device in dependence of control and

Control signals the motors of the printing device and the supply and

Dispensing device of the supply memory and the storage memory controls.

The supply of both the control / regulating device as well as the electric motors is preferably carried out in the inventive device with low voltage, for example, 24 volts. This allows the transformer to

Converting the voltage from, for example, 220 volts to 24 volts outside the device. An arrangement of the transformer

or the transformer outside the device on the one hand has the advantage of high reliability, because in case of failure of the power supply this must be replaced only by simply plugging in and unplugging, on the other hand, the device has no power components that lead to high heat and are supplied with mains voltage have to.

To the required services, for example, for the electric motors of the supply and discharge device and for the electric motor of the printing device for

In the case of a 24 V low voltage supply, it is advantageous to avoid current spikes, for example, by the control Z regulator device comprising high power capacitors comprising the

provide required amount of electricity if necessary.

The invention will be described in more detail below with reference to the exemplary embodiments

are described without being limited thereto. Show it:

Fig. 1a top view of a ribbon device with ribbon according to the

Invention;

Fig. 1b top view of an RFID chip as a code device for

Use in a ribbon device according to Fig. 1a;

Fig. 2 printing device with a ribbon device according to the

Invention, in a device for labeling of containers, such. B. in Fig. 3 or Fig. 4, use;

Fig. 3 is a schematic view of a device for labeling of

Containers with a ribbon device according to the invention;

4 shows a view of a device according to FIG. 3.

In Fig. 1a is an inventive ribbon device 2000 in a

Housing shown.

The ribbon device 2000 comprises two coils, a first coil 2010 and a second coil 2020. The unused ribbon 2030.1 of

Ribbon device is unwound from the first spool 2010 and after the color of the ink ribbon in area 2050 has been printed on a container (not shown) by means of a printhead acting on the ink ribbon 2030 at locations 2040, for example by means of needles, on the second Coil wound up in 2020. On the second coil thus the used ribbon 2030.2 is wound up.

According to the invention, a code device, in particular an RFID transponder 2080, for example in shape, is provided on the ribbon device a chip that can provide information on what specification the ink ribbon has and / or how many printing operations have been made by means of a printhead acting on the ink ribbon 2030 in the area 2050.

Instead of the RFID transponder, an optically readable barcode could also be used. In a particularly preferred embodiment, the RFI D transponder has not just once writable, but an RFID transponder with a writable, in particular rewritable memory area in chip form. Such an embodiment not only enables the filing and reading of the type or specification of a ribbon, but each stop of the printhead or each action of the printhead on the ribbon 2030 can be written into the memory of the transponder and so accurately the printing operations are counted.

By accurately recording the printing processes, in particular the number, which are carried out with the ink ribbon according to the invention, it is possible that the

Restrict printing to ensure machine readability and smudge resistance of the print. If the maximum number of prints is reached with the aid of the ink ribbon, a signal is emitted by the RFID transponder which blocks any further printing with the ink ribbon. The fact that the ribbon is limited in its usability, damage to the printhead, with which the ink is applied to the container, avoided.

The RFID transponder 2080 in disk form according to Figure 1a is not in

Individual presented, but corresponds to commercially available RFID transmitters or transponders, as they are known, for example, Klaus Finkenzeller: RFID Manual, ISBN 3/446/22071/2. The disclosure of this document is included in the present application. RFID chips or RFID transponders consist of a microchip, a

Antenna, a carrier or housing as well as active transponders of a power source. The antenna is usually formed in the form of a coil and is in shape and size depending on the frequency or wavelength. The coil, which acts as an antenna, is connected with wires to the chip, which includes the memory area. The necessary information in the memory area, for example the number of printing processes, is stored in the chip. The top view of an RFID transponder 2080 in detail is shown in FIG. 1b. The antenna is designated 3000, the leads from the chip 3010 to the antenna with 3020 and 3030, respectively.

FIG. 2 shows in detail a printing device 3 in which a ribbon device with ribbon (not shown) can be used. The

Printing device 3 has a print head, in particular a dot-matrix print head 10. The ribbon of the ribbon device which is guided in front of the print head is not shown here. In the position shown is the

Printing device 3 spent in a first position A, that is, about the axis 1000 from the plane 1100, in the case of a device for labeling of

A plane is pivoted in the plane 1200. The plane 1100 and the plane 1200 include an angle α, that is, the print head is in the first position, that is, in the position A of the automatic feeder as shown in Figure 3, folded by the angle α from the plane 1100 down. In automatic mode, the automatic supply to the printing device 3 is carried out by the sliding device 50. The automatically inscribed cassette is marked with 22.2. Since the containers 22.2 are chamfered on the side to be labeled 100, the printing plane, but lying substantially in the same plane as the surface to be labeled 100, the printing device is folded in the position A by the angle α, the angle, the Has chamfer substantially corresponds. Thus, if the bevel has an angle between 40 ° and 45 °, then the Abklappwinkel α for the printing device is between 40 ° and 45 °. Further to be seen in Figure 3, the cassettes 22 in

Magazine 24.1 of the feeder 5. The printing device 3 can by

Pivoting the axle 1000 from the first position A, in which the plane 1200 with the plane 1100 includes the angle α, z. B. in the position B for manual Operation can be spent. The guide device 400 for the manual

Feed from above and the guided in the guide device cartridge 22.1, which is supplied to the print head in position B manually, is also shown in Figure 3. In manual mode, the printing device is pivoted upwardly about the axis 1000, and the plane 1200 in which the printing device comes to rest is parallel to the plane 1100 in which the transport device is located. To the automatic feed d. H. To put the automatic mode out of operation and to enable a manual feed, a detection device 700 is provided. The detection device 700 may be a magnetic switch. In position A of the printing device, the switch is closed. Will the

Pressure device from the position A by pivoting about the axis 1000 z. B. in position B, the switch is opened and the controller overrides the automatic feed and automatic operation. The supply can then only be done manually.

In Figure 3 is a plan view of a device for labeling of

Containers shown. The device 1 comprises the printing device 3 with a ribbon device with, for example, an RFID transponder and a

Feed device 5, the transport device 7 and a storage device 9.

In the present case, the ink ribbon 23 of the ribbon device 21 is not guided in a housing as in Fig. 1a and Fig. 1b, but the ribbon device 21 comprises two rollers 12, 14, on which the ribbon 23rd , which is guided past the wire dot printing head 10, is wound. The RFID transponder 29 is presently applied to the roller 14, on which the used ink ribbon 23 is wound. The ink ribbon 23 is preferably provided with a color which is polymerized after application of the writing on the container to be printed, for example by means of light, in particular UV light. This ensures that the

Labeling has a resistance in particular to organic solvents, in particular acetone. The supply device 5 is designed as a carousel magazine with a total of six magazines, which are preferably designed as removable magazines 20.1, 20.2, 20.3, 20.4, 20.5, 20.6. Placed in the magazine 20.1 is the container 22 to be printed. The container 22 is moved from the position 24.1 in the magazine 20.1 to the position 24.2. spent. In the position 24.2 is the container, for example, a

Tissue sample receives, disposed opposite to an outlet opening 26 of the magazine. The container 22 in position 24.2 is received by the conveyor belt 30 of the transport device 7 and transported in the direction of arrow 32 to position 24.3. The transport can be done coupled or decoupled from the supply of a container from the supply device. In a decoupled supply, the transport of the container takes place regardless of whether a new container is already stored or not. This allows, for example, the supply of different magazines of the carousel magazine. For example, it is possible to provide the containers of the different magazines with different imprints. As soon as the container 22 has reached the position 24.3, the conveyor belt 30 is stopped and a signal is given to the sliding / gripping device 50. With the help of the sliding / gripping device 50, the container is moved in the direction 54 in the position 24.4 with the help of the slider or gripper 52. The position 24.4 corresponds to the printing position in the printing device 10. Once the container has arrived in the printing position 24.4, the container that receives the tissue sample, provided with a corresponding code or a marker using the dot matrix printer 3. After the printing process is completed, the container is moved from the position 24.4 to the position 24.3 on the conveyor belt, in particular the roller chain by means of the gripper 52 of the gripping device. The filing after

Printing on the conveyor belt in the position 24.3 is again detected and transmitted to the control device, not shown, which then sets the conveyor belt 30 in motion again. On the conveyor belt 30, the container is moved in the direction 34 in the position 24.5 in the storage device. In the storage device shown in this embodiment, each individual container is stored. The chamfered and printed side 100 of the individual containers 22 can be seen particularly clearly

Container 22 on the printed side is between 40 and 45 degrees, preferably 43 degrees. It is particularly preferred to apply the applied inscription, in particular for acetone, in a non-detachable manner by polymerizing the inscription by means of energy supply, in particular of UV light.

Of course, it would be possible to design the storage device differently, for example, with stationary magazines, especially in the form of a

Carousel magazine like the feeder. An embodiment as

Carousel magazine allows an organized storage, for example, a tray corresponding to the supply, for example, from the feed carousel magazine. In a first embodiment of the invention, when the cassette 20.1 shown in FIG. 3 is completely emptied and all the containers contained therein are labeled, the carousel magazine can be rotated about the axis A in the direction 10 by means of a motor 200 until the outlet opening 26.2 of FIG

Changing magazine 20.2 comes to rest, that in the magazine 20.2

stored containers can be stored on the conveyor belt 7. But if the transport device is separated from the feeder, so containers can be supplied from different cassettes and a

complete emptying before containers from other magazines are fed is not necessary.

The design of the transport device as a conveyor belt and the drive of the carousel magazine are particularly good to see the side view in Figure 2. As is apparent from Figure 4, the transport device 7 is a circumferential

Conveyor belt 30, in particular one or more roller chains, or the two rollers 300.1, 300.2 is deflected. The conveyor belt or the Roller chain has transporter lifts 302.1, 302.2, 302.3, 302.4, 302.5, in particular driver. With the help of transporter surveys that can

Container 22 are brought out of the magazine 24.1 of the feeder 5 to position 24.3, in which the magazine 22 is transferred into the printing device, not shown, with the aid of the sliding / gripping device.

The motor 200 for driving the carousel magazine in the different

Position is also clearly visible in FIG. Furthermore, the receiving cassette 9, in which the individual containers 22 are deposited after the inscription, is easily recognizable. The container shown is merely one possible embodiment. Even a stationary magazine (not shown) would be possible.

With the ribbon device according to the invention, a ribbon device is provided, which is characterized in that the type and specification of the ribbon can be stored permanently readable, z. B. in a multi-readable RFID transponder or a barcode. This prevents erroneous use in a printing device requiring, for example, acetone resistance. In a multiply described RFID transponder, the number of

Print processes are stored and so for example damage to the print head can be reliably prevented. In addition, a machine readability of the imprint is ensured as well as abrasion resistance and resistance to organic solvents, such as acetone resistance.

The apparatus further described in the invention

Ribbon device is an automated labeling device specified, which is characterized by a high reliability and abrasion resistance of the label. In particular, the apparatus is configured such that the area in which manual feed printing is made is spatially separate from the area where automatic feed is made. This ensures that when manually feeding a container the automatic feed is interrupted as short as possible, preferably less than 20 sec, in particular even less than 5 sec.

As stated previously, the device allows not just one

automatic labeling is carried out, but also a manual label is very easily possible, since by pivoting the printing device, for example by means of a lever which is detected by the control / regulating device, a fast switching from automatic to manual mode is possible. It is also possible to process batches and to label individual containers during the processing of the batch in which the batch operation is interrupted and the container is manually labeled.

Claims

claims

A ribbon device comprising a ribbon (23, 2030) for a

Printing device (3), in particular for a dot matrix printer,

characterized in that

the ribbon device (21, 2000) comprises a code device, in particular an RFID transponder (29, 2080).

2. Ribbon device according to claim 1,

characterized in that

the ribbon (23, 2030) comprises a color, wherein the color

Color pigments which can be polymerized after application with UV light.

3. Ribbon device according to one of claims 1 to 2,

characterized in that

the ink ribbon (23, 2030) comprises a color selected such that the color has acetone resistance after being applied to a substrate.

4. Ribbon device according to one of claims 1 to 3,

characterized in that the code device, in particular the RFID transponder (2080, 29) contains at least one memory area (3010) in which information about the number of printing operations and / or information about the type or the type of the ink ribbon (23, 2030) are stored.

5. Ribbon device according to claim 4,

characterized in that

the transponder (2080, 29) comprises a microcontroller and / or a rewritable memory area (3010).

6. Ribbon device according to one of claims 4 to 5,

characterized in that

the number of prints is in the range of 1000 prints to 100,000 prints, preferably 10,000 prints to 50,000 prints.

7. Device for identifying containers, in particular

Pressure containers for medical samples, comprising a pressure device; a supply and / or discharge device for feeding and / or discharging at least one container to the printing device,

characterized in that

the printing device (3) comprises a ribbon device (21, 2000) according to one of claims 1 to 6.

8. Apparatus according to claim 7,

characterized in that

the printing device (3) is designed such that it can be brought into at least a first position and a second position, wherein in the first position, an automatic supply and / or discharge of the container by means of the supply and / or discharge device takes place and in one second position, a manual supply and / or discharge of the container and the pressure device is designed to pivot about an axis in the first and / or second position.

9. Device according to one of claims 7 to 8,

characterized in that

the printing device (3) is a dot-matrix printing device with at least one print head.

10. Device according to one of claims 7 to 9,

characterized in that

the device of the printing device (3) downstream of a light source, in particular a UV light source, preferably in the form of one or more

Light-emitting diodes (LED) for a polymerization of the color of the ink ribbon (23, 2030).