EP0939699B1 - Printing method - Google Patents
Printing method Download PDFInfo
- Publication number
- EP0939699B1 EP0939699B1 EP97948698A EP97948698A EP0939699B1 EP 0939699 B1 EP0939699 B1 EP 0939699B1 EP 97948698 A EP97948698 A EP 97948698A EP 97948698 A EP97948698 A EP 97948698A EP 0939699 B1 EP0939699 B1 EP 0939699B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- stack
- printing
- delivery
- feed
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/02—Rotary lithographic machines for offset printing
- B41F7/10—Rotary lithographic machines for offset printing using one impression cylinder co-operating with several transfer cylinders for printing on sheets or webs, e.g. satellite-printing units
Definitions
- the invention relates to a method for printing on a sheet front and for printing on the back of a sheet.
- Printing presses are generally known (EP 051 2549) in which for printing on the front of the sheet and for subsequent printing a double sheet pass and a Turn the stack over for printing before the second sheet pass the back of the sheet is required.
- the high cost of the second sheet pass is disadvantageous and especially for turning the stack of sheets with an additional one Stack turning device.
- Printing machines are also known (DD 54 703), in which the sheets to be printed are printed on the front of the sheet first, turned in the printing press, the back of the sheet printed and then face up on a delivery sheet stack is filed.
- the object of the invention is to provide a method for printing the front of the sheet and subsequent printing on the back of the sheet without great mechanical engineering and handling effort.
- each offset cylinder contains a stack of feeder sheets 1, conveyor elements 2, further conveyor elements 3, one as a pressure cylinder trained sheet guiding cylinder 4, with two offset cylinders 5 cooperates, each offset cylinder a printing form cylinder 6 is assigned with two ink / dampening rollers 7, additional Conveying elements 9 and a stack of delivery sheets 11.
- the sheet 12 to be printed is first removed from the stack of feeder sheets 1 transported in the direction of the sheet guide cylinder 4, this Direction is referred to as sheet travel direction 14.
- This Direction is referred to as sheet travel direction 14.
- the handover the printed sheet from the sheet guide cylinder 4 to the following Additional conveyor elements 9 take place counter to the direction of sheet travel 14, this direction is subsequently the sheet transport direction Called 15.
- sheet travel direction 14 in sheet transport direction 15 - is the delivery sheet stack 11 seen in the sheet running direction 14 in front of the feeder sheet stack 1 arranged.
- feeder sheet stack 1 and the delivery sheet stack 11 arranged in the same stack level 10.
- the sheet stack 1; 11 are each a stacking trolley 16 associated with rollers 17 which are movable on the stacking level 10 are.
- FIG Printing machine a feeder sheet stack 1, conveyor elements 2 for Sheet separation, further conveyor elements 3, one as a pressure cylinder trained sheet guiding cylinder 4, with two offset cylinders 5 interacts, with each offset cylinder Printing form cylinder 6 with two inking / dampening rollers 7 is assigned, additional conveyor elements 9 and a delivery sheet stack 11.
- the arch is like that in FIG. 1 first in the sheet travel direction 14 and then in the sheet transport direction 15 funded.
- the stacks are on vertically movable chains 20 attached Stack support plates 18 arranged.
- a vertically movable stack support plate is as a stack support and - Turning plate 19 formed and rotatable in its horizontal plane.
- the conveyed from the feeder sheet stack 1 to the sheet guide cylinder 4 Bow is based on the machine schemes described based on the position of the sheet on the feeder sheet stack 1 first printed on the reverse of the sheet and with the printed reverse of the sheet placed upwards on the delivery sheet stack 11.
- This offers the possibility of lowering the delivery sheet stack 11 or move or by rotating 180 ° and moving or lowering and rotating by 180 ° to the position of the sheet stack 1 to bring and immediately the subsequent print of the front the sheet in a second sheet pass without stacking to start.
- Turning the stack has the advantage that the contact edge relevant for high quality printing always, i.e. when printing on the front of the sheet and when Printing on the back of the sheet, lying in the direction of sheet travel in front.
- the stack of feeder sheets 1 is in its starting position driven and the stack transport carriage 16 of the delivery sheet stack 11 provided. After that (scheme below) the two stacks 1; 11 brought into their operating position. Now the printing process begins, i.e. the sheets to be printed 12 are taken from the feeder sheet stack 1, on the back of the sheet printed - schematically indicated by a dashed triangle - Promoted to the delivery sheet stack 11 and there with printed sheet back up - schematically by a filled Triangle indicated - filed.
- the empty stacking trolley 16 of the feeder sheet stack 1 extended, the delivery sheet stack 11 lowered and rotated by 180 °. Then (Scheme top right) of the delivery sheet stack 11 in the starting position the feeder sheet stack 1 and the empty stack transport carriage 16 of the feeder sheet stack 1 in the starting position of the delivery sheet stack 11 move and then into the respective operating position brought.
- the second phase is in Fig. 2 in the version with a turntable 13 and a linear conveyor unit 8.
- the underside of the stack transport car 16 of the stack of feed sheets 1 and the delivery sheet stack 11 is the linear conveyor unit 8 and assigned to the turntable 13; or the bottom the stacking trolley 16 is the linear conveyor unit 8 and the rollers 17 of the stacking trolleys 16 assigned to the turntable 13.
- the printing process starts again in the third phase, i.e. the sheets to be printed are in the position of the feeder sheet stack 1 located delivery sheet stack 11 removed, printed on the back of the sheet now, in the position of the delivery sheet stack 11 located feed sheet stack 1 promoted and there with the now printed sheet back upwards - schematically indicated by a triangle - filed.
- This process continues until the stacking trolley of the Delivery sheet stack 11 empty and in its upper position and the Feeder sheet stack 1 is full and in an intermediate position; after that the stack transport carriage 16 of the delivery sheet stack 11 lowered to the starting position mentioned at the beginning.
- both the empty stacking trolley 16 of the delivery sheet stack 11 and the feeder sheet stack 1 extended with the sheets printed on both sides.
- FIG. 3 With the stack of sheets arranged one above the other (FIG. 3) bringing the stack of investment sheets 11 into the position of the stack of feed sheets 1 by lowering the stack of delivery sheets as well by rotating it 180 ° by means of the stack support and turntable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pile Receivers (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Bedrucken einer Bogenvorderseite und zum Bedrucken einer Bogenrückseite.The invention relates to a method for printing on a sheet front and for printing on the back of a sheet.
Es sind Druckmaschinen allgemein bekannt (EP 051 2549), bei denen zum Bedrucken der Bogenvorderseite und zum nachfolgenden Bedrukken der Bogenrückseite ein zweimaliger Bogendurchlauf und ein Wenden des Stapels vor dem zweiten Bogendurchlauf zum Bedrucken der Bogenrückseite erforderlich ist.Printing presses are generally known (EP 051 2549) in which for printing on the front of the sheet and for subsequent printing a double sheet pass and a Turn the stack over for printing before the second sheet pass the back of the sheet is required.
Nachteilig ist der hohe Aufwand für den zweiten Bogendurchlauf und insbesondere für das Wenden des Bogenstapels mit einer zusätzlichen Stapelwendeeinrichtung.The high cost of the second sheet pass is disadvantageous and especially for turning the stack of sheets with an additional one Stack turning device.
Es sind auch Druckmaschinen bekannt (DD 54 703), bei denen der zu bedruckende Bogen zuerst auf der Bogenvorderseite bedruckt, in der Druckmaschine gewendet, die Bogenrückseite bedruckt und danach mit der Bogenrückseite nach oben auf einen Auslagebogenstapel abgelegt wird.Printing machines are also known (DD 54 703), in which the sheets to be printed are printed on the front of the sheet first, turned in the printing press, the back of the sheet printed and then face up on a delivery sheet stack is filed.
Für kleine und/oder Kompaktmaschinen und/oder Druckmaschinen mit Bebilderung der Druckplatte in der Druckmaschine ist der Aufwand für eine Wendeeinrichtung relativ hoch und damit nachteilig.For small and / or compact machines and / or printing machines with Illustration of the printing plate in the printing press is the effort for a turning device relatively high and therefore disadvantageous.
Durch die JP 041 05 941 ist es bekannt, den Auslagestapel deckungsgleich über dem Anlagebogenstapel anzuordnen und damit einen zweiten Bogendurchlauf zum Bedrucken der Bogenrückseite zu ermöglichen.From JP 041 05 941 it is known that the delivery stack is congruent over the stack of investment sheets to arrange and thus a second sheet run for printing on the To enable the back of the sheet.
Aufgabe der Erfindung ist die Schaffung eines Verfahrens zum Bedrucken der Bogenvorderseite und nachfolgenden Bedrucken der Bogenrückseite ohne großen Maschinentechnischen- und Handlingsaufwand.The object of the invention is to provide a method for printing the front of the sheet and subsequent printing on the back of the sheet without great mechanical engineering and handling effort.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs
1 gelöst.According to the invention the object is achieved by the features of the
Nachfolgend wird das erfindungsgemäße Verfahren an einem Ausführungsbeispiel näher beschrieben. The method according to the invention is illustrated below using an exemplary embodiment described in more detail.
In den Zeichnungen zeigen
- Fig. 1
- Bogendruckmaschine;
Variante 1 - Fig. 2
- Stapeltransport
- Fig. 3
- Bogendruckmaschine;
Variante 2.
- Fig. 1
- Sheet printing machine;
version 1 - Fig. 2
- Batch transport
- Fig. 3
- Sheet printing machine;
Variant 2.
Das Verfahren zum Bedrucken einer Bogenvorderseite und nachfolgendem Bedrucken einer Bogenrückseite wird anhand der in den Figuren 1 und 3 dargestellten Bogendruckmaschinen beschrieben.The process for printing on a sheet front and subsequent Printing on a sheet back is based on the in the figures 1 and 3 sheet printing machines shown.
Die Druckmaschine gemäß Fig. 1 enthält einen Anlegerbogenstapel
1, Förderelemente 2, weitere Förderelemente 3, einen als Druckzylinder
ausgebildeten Bogenführungszylinder 4, der mit zwei Offsetzylindern
5 zusammenwirkt, wobei jedem Offsetzylinder ein Druckformzylinder
6 mit zwei Farb-/Feuchtwalzen 7 zugeordnet ist, zusätzliche
Förderelemente 9 und einen Auslagebogenstapel 11.1 contains a stack of
Der zu bedruckende Bogen 12 wird zuerst vom Anlegerbogenstapel 1
in Richtung des Bogenführungszylinders 4 transportiert, diese
Richtung wird mit Bogenlaufrichtung 14 bezeichnet. Die Übergabe
der bedruckten Bogen vom Bogenführungszylinder 4 an die nachfolgenden
zusätzlichen Förderelemente 9 erfolgt entgegen der Bogenlaufrichtung
14, diese Richtung wird nachfolgend Bogentransportrichtung
15 genannt.The
Durch die Änderung der Bogenbewegungsrichtung - Bogenlaufrichtung
14 in Bogentransportrichtung 15 - ist der Auslagebogenstapel
11 in Bogenlaufrichtung 14 gesehen vor dem Anlegerbogenstapel 1
angeordnet.By changing the direction of sheet movement -
Des weiteren ist der Anlegerbogenstapel 1 und der Auslagebogenstapel
11 in gleicher Stapelebene 10 angeordnet.Furthermore, the
Die Bogenstapel 1; 11 sind jeweils einem Stapeltransportwagen
16 mit Rollen 17 zugeordnet, die auf der Stapelebene 10 bewegbar
sind.The
Nach der in Fig. 3 dargestellten Ausführungsvariante enthält die
Druckmaschine einen Anlegerbogenstapel 1, Förderelemente 2 zur
Bogenvereinzelung, weitere Förderelemente 3, einen als Druckzylinder
ausgebildeten Bogenführungszylinder 4, der mit zwei Offsetzylindern
5 zusammenwirkt, wobei jedem Offsetzylinder ein
Druckformzylinder 6 mit zwei Farb-/Feuchtwalzen 7 zugeordnet ist,
zusätzliche Förderelemente 9 und einen Auslagebogenstapel 11.
Auch bei dieser Ausführungsform wird der Bogen wie bei Fig. 1
zuerst in Bogenlaufrichtung 14 und dann in Bogentransportrichtung
15 gefördert.According to the embodiment variant shown in FIG
Printing machine a
Die Stapel sind auf an Ketten 20 befestigten, vertikal bewegbaren
Stapeltragplatten 18 angeordnet.The stacks are on vertically
Eine vertikal bewegbare Stapeltragplatte ist als Stapeltrag- und
- drehplatte 19 ausgebildet und in ihrer horizontalen Ebene drehbar.A vertically movable stack support plate is as a stack support and
- Turning
Der vom Anlegerbogenstapel 1 zu dem Bogenführungszylinder 4 geförderte
Bogen wird auf Grund der beschriebenen Maschinenschemata
bezogen auf die Lage des Bogens auf dem Anlegerbogenstapel 1 zuerst
auf der Bogenrückseite bedruckt und mit der bedruckten Bogenrückseite
nach oben auf dem Auslagebogenstapel 11 abgelegt.
Dies bietet die Möglichkeit den Auslagebogenstapel 11 durch Absenken
oder Verschieben oder durch Drehen um 180° und Verschieben
oder Absenken und Drehen um 180° in die Position des Anlägebogenstapels
1 zu bringen und sofort den Nachfolgedruck der Vorderseite
des Bogens in einem zweiten Bogendurchlauf ohne Stapelwendung
zu beginnen. Das Drehen des Stapels bietet den Vorteil,
daß die für einen qualitativ hochwertigen Druck relevante Anlagekante
immer, d.h. beim Bedrucken der Bogenvorderseite und beim
Bedrucken der Bogenrückseite, in Bogenlaufrichtung vorn liegt.The conveyed from the
In Fig. 2 ist das Handling des Anlegerbogenstapels 1 und des Auslagebogenstapels
11 beim Bedrucken der Bogenvorderseite und Bogenrückseite
schematisch dargestellt.2 is the handling of the
In der ersten Phase wird der Anlegerbogenstapel 1 in seine Ausgangsposition
gefahren und der Stapeltransportwagen 16 des Auslagebogenstapels
11 bereitgestellt. Danach (Schema darunter) werden
die beiden Stapel 1; 11 in ihre Betriebsposition gebracht.
Nunmehr beginnt der Druckvorgang, d.h. die zu bedruckenden Bogen
12 werden vom Anlegerbogenstapel 1 entnommen, auf der Bogenrückseite
bedruckt - schematisch durch ein gestricheltes Dreieck angedeutet
- zum Auslagebogenstapel 11 gefördert und dort mit der
bedruckten Bogenrückseite nach oben - schematisch durch ein ausgefülltes
Dreieck angedeutet - abgelegt. Dieser Vorgang wird
fortgesetzt bis der Anlegerbogenstapel 1 leer und der Stapeltransportwagen
16 des Anlegerbogenstapels 1 in seiner oberen Position
und der Auslagebogenstapel 11 voll und in einer Zwischenposition
ist; danach wird der Stapeltransportwagen 16 des Anlegerbogenstapels
1 auf die eingangs erwähnte Ausgangsposition-Stapelebene
10 - abgesenkt.In the first phase, the stack of
In der folgenden zweiten Phase wird der leere Stapeltransportwagen
16 des Anlegerbogenstapels 1 ausgefahren, der Auslagebogenstapel
11 abgesenkt und um 180° gedreht. Danach wird (Schema
rechts oben) der Auslagebogenstapel 11 in die Ausgangsposition
des Anlegerbogenstapels 1 und der leere Stapeltransportwagen 16
des Anlegerbogenstapels 1 in die Ausgangsposition des Auslagebogenstapels
11 verfahren und danach in die jeweilige Betriebsposition
gebracht.In the following second phase, the
Die zweite Phase ist in Fig. 2 in der Ausführung mit einem Drehtisch
13 und einer Linearfördereinheit 8 dargestellt.The second phase is in Fig. 2 in the version with a
Die Unterseite der Stapeltransportwagen 16 des Anlegerbogenstapels
1 und des Auslagebogenstapels 11 ist dabei der Linearfördereinheit
8 und dem Drehtisch 13 zugeordnet; oder die Unterseite
der Stapeltransportwagen 16 ist der Linearfördereinheit 8 und
die Rollen 17 der Stapeltransportwagen 16 dem Drehtisch 13 zugeordnet.The underside of the
Nunmehr beginnt in der dritten Phase wieder der Druckvorgang,
d.h. die zu bedruckenden Bogen werden vom in der Position des Anlegerbogenstapels
1 befindlichen Auslagebogenstapel 11 entnommen,
auf der nunmehrigen Bogenrückseite bedruckt, zum in der Position
des Auslagebogenstapels 11 befindlichen Anlegerbogenstapel 1 gefördert
und dort mit der nunmehrigen bedruckten Bogenrückseite
nach oben - schematisch durch ein Dreieck angedeutet - abgelegt.
Dieser Vorgang wird fortgesetzt bis der Stapeltransportwagen des
Auslagebogenstapels 11 leer und in seiner oberen Position und der
Anlegerbogenstapel 1 voll und in einer Zwischenposition ist; danach
wird der Stapeltransportwagen 16 des Auslagebogenstapels 11
auf die eingangs erwähnte Ausgangsposition abgesenkt.Now the printing process starts again in the third phase,
i.e. the sheets to be printed are in the position of the
In der folgenden vierten Phase wird sowohl der leere Stapeltransportwagen
16 des Auslagebogenstapels 11 als auch der Anlegerbogenstapel
1 mit den beidseitig bedruckten Bogen ausgefahren.In the following fourth phase, both the
Bei den übereinander angeordneten Bogenstapeln (Fig. 3) erfolgt
das Verbringen des Anlagebogenstapels 11 in die Position des Anlegerbogenstapels
1 durch Absenken des Auslagebogenstapels sowie
durch ein Drehen desselben um 180° vermittels der Stapeltrag-
und -drehplatte. With the stack of sheets arranged one above the other (FIG. 3)
bringing the stack of
- 11
- AnlegerbogenstapelStack of feeder sheets
- 22nd
- FörderelementConveyor element
- 33rd
- weiteres Förderelementanother funding element
- 44th
- BogenführungszylinderBow guide cylinder
- 55
- OffsetzylinderOffset cylinder
- 66
- DruckformzylinderPrinting form cylinder
- 77
- Farb-/FeuchtwalzeInk / dampening roller
- 88th
- LinearfördereinheitLinear feed unit
- 99
- zusätzliches Förderelementadditional conveyor element
- 1010th
- StapelebeneStacking level
- 1111
- AuslagebogenstapelDelivery sheet stack
- 1212th
- Bogenarc
- 1313
- DrehtischTurntable
- 1414
- BogenlaufrichtungDirection of sheet travel
- 1515
- BogentransportrichtungSheet transport direction
- 1616
- StapeltransportwagenStacking trolleys
- 1717th
- Rollerole
- 1818th
- StapeltragplatteStack support plate
- 1919th
- Stapeltrag- und - drehplatteStacking and rotating plate
- 2020th
- KetteChain
Claims (9)
- Method of printing a sheet front side and printing a sheet rear side of a sheet conveyed from a feed sheet stack to a delivery sheet stack by way of at least one sheet feeding cylinder co-operating directly or indirectly with at least one single-colour printing cylinder, characterised in that the sheet to be printed is removed from the feed sheet stack, fed to the sheet guiding cylinder for printing on the sheet rear side, the sheet rear side printed, the printed sheet transported to the delivery sheet stack in a sheet transport direction opposite to the sheet running direction to the sheet guiding cylinder, deposited with the printed rear side upwards onto the delivery sheet stack arranged in the same plane in front of the feed sheet stack with respect to the sheet running direction, and the delivery sheet stack can be brought into the position of the feed sheet stack for subsequent printing of the sheet front side.
- Method of printing according to claim 1, characterised in that the bringing of the delivery sheet stack into the position of the feed sheet stack includes a rotation of the delivery sheet stack through 180°.
- Method of printing according to claim 1, characterised in that the stack movement is carried out in and/or transversely to and/or vertically to the sheet running direction.
- Method of printing according to claim 1, characterised in that the feed sheet stack is transported by an associated linear conveying unit in and opposite to the sheet running direction and the delivery sheet stack arranged in front of the feed sheet stack with respect to the sheet running direction is turned by an associated turntable and subsequently transported by the linear conveying unit in sheet running direction.
- Method of printing according to claim 1, characterised in that the delivery sheet stack is turned and vertically moved by means of the turntable.
- Method of printing according to claim 1, characterised in that the delivery sheet stacks are arranged on stack transport cars.
- Method of printing according to claim 6, characterised in that the rollers of the stack transport cars are associated with the stack plane.
- Method of printing according to claims 4 and 6, characterised in that the linear conveying unit and/or the turntable are associated with the underside of the stack transport car.
- Method of printing according to claims 4 and 6, characterised in that the linear conveying unit is associated with the underside of the stack transport car and the rollers of the stack transport cars are associated with the turntable.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19644950A DE19644950A1 (en) | 1996-05-24 | 1996-10-29 | Printing front and rear side of paper sheet |
| DE19644950 | 1996-10-29 | ||
| PCT/DE1997/002535 WO1998018624A1 (en) | 1996-10-29 | 1997-10-28 | Printing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0939699A1 EP0939699A1 (en) | 1999-09-08 |
| EP0939699B1 true EP0939699B1 (en) | 2001-12-19 |
Family
ID=7810324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97948698A Expired - Lifetime EP0939699B1 (en) | 1996-10-29 | 1997-10-28 | Printing method |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0939699B1 (en) |
| WO (1) | WO1998018624A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE554237C (en) * | 1931-07-11 | 1932-07-06 | Vogtlaendische Maschinenfabrik | Device for stretching the sheets before printing in multi-color printing machines for sheets |
| US4181078A (en) * | 1977-12-08 | 1980-01-01 | Am International, Inc. | Automatic recirculating duplicator |
| JPS58118254A (en) * | 1982-01-07 | 1983-07-14 | Toppan Printing Co Ltd | Sheet offset printer for back printing |
| NL8503006A (en) * | 1985-11-04 | 1987-06-01 | Oce Nederland Bv | METHOD AND APPARATUS FOR PRINTING IMAGES ON HALF OF BOTH SIDES OF SHEETS. |
| JP3028570B2 (en) * | 1990-08-24 | 2000-04-04 | ソニー株式会社 | Double-sided printing device |
| DE19523378A1 (en) * | 1995-06-30 | 1997-01-02 | Koenig & Bauer Albert Ag | Sheet offset rotary printing machine |
-
1997
- 1997-10-28 WO PCT/DE1997/002535 patent/WO1998018624A1/en active IP Right Grant
- 1997-10-28 EP EP97948698A patent/EP0939699B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0939699A1 (en) | 1999-09-08 |
| WO1998018624A1 (en) | 1998-05-07 |
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