EP0309811B1 - Imprimante pour documents - Google Patents
Imprimante pour documents Download PDFInfo
- Publication number
- EP0309811B1 EP0309811B1 EP88115019A EP88115019A EP0309811B1 EP 0309811 B1 EP0309811 B1 EP 0309811B1 EP 88115019 A EP88115019 A EP 88115019A EP 88115019 A EP88115019 A EP 88115019A EP 0309811 B1 EP0309811 B1 EP 0309811B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- document
- ink ribbon
- ribbon
- printer
- printer head
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/325—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
Definitions
- the invention relates to a device for printing receipts according to the features of the preamble of claim 1.
- Modern document processing systems with devices for optical character recognition are increasingly being equipped with printing devices with which additional data, preferably receipt data, can be printed. Since printing devices of this type have to be arranged between the reading device and the adjoining compartment path with one or more storage compartments, and there is usually little space there, the installation of a printing device occasionally presents major problems. In addition, the printing device usually has to be serviced at regular intervals.
- the present invention is therefore based on the object of designing and arranging a device for printing receipts in a receipt processing device such that the printing device is easily accessible and can be easily maintained.
- the figure shows a schematic representation of a document processing device, for example a form reader with optical character recognition. It shows in detail an input table 1 with a first singling roll 2, which pulls the topmost document from a document stack 3 lying on the input table 1 and guided by a lateral stop and fed to a second singling roll 4.
- This second singling roller 4 is followed by a transport route with accelerator roller 5, which transfers the document to further means of transport.
- These further transport means consist of two rows of parallel pairs of rollers 6, 7, between which an optoelectric reading device, not shown, is provided.
- a deflection roller 8 which forwards the document together with a curved outer baffle (not shown) to a section 9.
- the document processing device also contains a printing device 12, which is designed as an independent structural unit and is arranged such that the print head 13 of the printing device 12 is located in front of a counter-pressure roller 14.
- This counter pressure roller 14 is made of foam, rubber or the like and is arranged next to the deflection roller 8 which does not record the full width of the document so that its apex line facing the print head 13 runs in alignment with a corresponding apex line in the document guide of the deflection roller 8.
- the entire printing device 12 is also held in guide elements (not shown) and can be pulled out tangentially to the apex line of the counter-pressure roller 14 along the guide elements from the printing position (see arrow).
- the printing device works, for example, according to the thermal transfer principle, in which the print head 13 consists of a series of thermal printing dots which are activated and heated in accordance with the character code provided in the character generator. At the same time, the print head 13 is pressed with a defined contact pressure by means of a lifting magnet 15 against a thermal ink ribbon 16, which in turn is pressed against the counter-pressure roller 14. By heating the print head 13, the thermal ink ribbon 16 is heated point by point, with corresponding ink dots being transferred from the thermal ink ribbon 16 to the paper of a document transported between the thermal ink ribbon 16 and the counter-pressure roller 14.
- the thermal transfer principle has the advantage over other printing methods, in particular dot-matrix or ink-jet printing methods, that it is quieter in comparison to dot-matrix printing and that, in contrast to ink-jet printing, it is both independent of the paper quality and independent of the respective installation position in the device .
- an approximately rectangular cassette 17 is provided, which has two ribbon winding cores which can be plugged onto guide pins - winding core 18, winding core 19 - and in which the thermal ink ribbon 16 has a series of deflection rollers 20 along a longitudinal edge on the print head 13 is moved past.
- this longitudinal edge has two openings 21, 22, of which the first opening 21 in the region of the print head 13 and the second opening 22, relative to the center line running between the two tape winding cores 18, 19, is arranged mirror-symmetrically to the opening 21.
- the two approximately rectangular openings 21, 22 are selected so large that, as can be seen in the opening 21, the print head 13 can dip into the cassette 17 behind the thermal ink ribbon 16.
- a U-shaped slot opening 23, 24 for a capstan drive shaft 25 or a light barrier 26 is provided on the two narrow sides of the cassette 17.
- the arrangement of the individual openings 21, 22 and 23, 24 is expediently chosen so that the cassette can be used as a reversible cassette in multiple operation.
- For the drive of the thermal ribbon 16 provides the already mentioned Kapstan drive shaft 25 and a pressure roller 27 which presses against the other side of the belt when the printing device 12 is inserted.
- a slip coupling integrated in the Kapstan drive shaft 25 also has the effect that the higher ribbon speed per se corresponds to the lower transport speed of the at the print head 13 moving print template is adjusted.
- the drive coupled to the drive of the capstan drive shaft 25 for the ribbon winding core 18 receiving the ribbon to be wound is also adjusted by a slip clutch so that there is only a very low driving torque for this ribbon winding core 18.
- the end of the ribbon is monitored, the position of the light barrier 26 relative to the print head 13 being selected such that all documents already in transit are still printed when the end of the ribbon passes the print head before the end of the ribbon 13 reached.
Landscapes
- Electronic Switches (AREA)
- Cash Registers Or Receiving Machines (AREA)
- Threshing Machine Elements (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Handling Of Sheets (AREA)
Claims (9)
- Dispositif pour imprimer des documents dans un dispositif de traitement de documents, comportant une table d'entrée (1) pour des documents déposés sous la forme d'une pile, un dispositif de lecture disposé dans la section de transport des documents en amont du dispositif d'impression (12), et un rouleau de renvoi (8) disposé en aval du dispositif de lecture et servant à renvoyer les documents dans des casiers de réception (10,11) disposés au-dessous de la table d'entrée (1), caractérisé par le fait que le dispositif d'impression (22), qui est constitué par une tête d'impression (13) et un système de transport pour un ruban encreur (16) qui passe devant la tête d'impression (13) entre deux mandrins (18,19) d'enroulement du ruban, est agencé sous la forme d'une unité de construction indépendante et disposé de telle sorte que la tête d'impression (13) du dispositif d'impression (12) est située en amont d'un rouleau de contrepression (14), qui est monté à côté du rouleau de renvoi (8), qui ne saisit pas le document sur toute sa largeur, de sorte que sa ligne sommitale, tournée vers la tête d'impression (13), est alignée sur une ligne sommitale correspondante lors du guidage du document sur le rouleau de renvoi (8), et que l'unité de construction est retenue dans des éléments de guidage et peut être retirée tangentiellement par rapport à la ligne sommitale du rouleau de contre-pression (14) hors du dispositif de traitement des documents, le long des éléments de guidage.
- Dispositif suivant la revendication 1, caractérisé par le fait que le système de transport du ruban encreur est agencé sous la forme d'une cassette (17) de forme sensiblement rectangulaire, qui peut être montée sur des broches de guidage pour les deux mandrins (18,19) d'enroulement du ruban et qui comporte, au niveau du bord longitudinal tourné vers la tête d'impression (13), au moins une ouverture rectangulaire (21,22) pour la tête d'impression (13), qui pénètre derrière le ruban encreur (16) dans la cassette (17), et possède en outre une autre ouverture (23) pour un arbre (25) d'entraînement d'un cabestan, disposé en amont du mandrin d'enroulement (18).
- Dispositif suivant la revendication 2, caractérisé par le fait que l'arbre (25) d'entraînement du cabestan possède un accouplement patinant, qui adapte la vitesse en soi supérieure du ruban à la vitesse de transport plus faible du document guidé entre le ruban encreur (16) et le rouleau de pression antagoniste (14).
- Dispositif suivant la revendication 3, caractérisé par le fait que le dispositif d'entraînement, qui est également équipé d'un accouplement patinant pour le mandrin d'enroulement (18), est accouplé au dispositif d'entraînement pour l'arbre (25) d'entraînement du cabestan et possède un moment d'entraînement relativement faible.
- Dispositif suivant l'une des revendications 2 à 4, caractérisé par le fait qu'une autre ouverture (24) est prévue, au voisinage du mandrin débiteur (19), pour un relais photoélectrique (26) qui contrôle l'extrémité du ruban encreur.
- Dispositif suivant la revendication 5, caractérisé par le fait que les ouvertures (23,24), qui sont associées, d'une part, à l'arbre (25) d'entraînement du cabestan et, d'autre part, au relais photoélectrique (26), sont disposés sur les petits côtés de la cassette dans une position réciproquement symétrique par rapport à la ligne médiane située entre les deux mandrins (18,19) d'enroulement du ruban.
- Dispositif suivant la revendication 6, caractérisé par le fait que les ouvertures (23,24) pour l'arbre (25) d'entraînement du cabestan et le relais photoélectrique (26) sont agencés sous la forme de fentes en forme de U.
- Dispositif suivant l'une des revendications précédentes, caractérisé par le fait qu'il est prévu, en tant que dispositif d'impression (12), une tête d'impression à transfert thermique (13) comportant un ruban encreur de transfert thermique (16).
- Dispositif suivant l'une des revendications précédentes, caractérisé par le fait que le rouleau de contre-pression (14) est réalisé en caoutchouc, en un matériau mousse ou analogue.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88115019T ATE99232T1 (de) | 1987-09-28 | 1988-09-14 | Vorrichtung zum bedrucken von belegen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3732622 | 1987-09-28 | ||
DE19873732622 DE3732622A1 (de) | 1987-09-28 | 1987-09-28 | Vorrichtung zum bedrucken von belegen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0309811A2 EP0309811A2 (fr) | 1989-04-05 |
EP0309811A3 EP0309811A3 (fr) | 1991-01-09 |
EP0309811B1 true EP0309811B1 (fr) | 1993-12-29 |
Family
ID=6337034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88115019A Expired - Lifetime EP0309811B1 (fr) | 1987-09-28 | 1988-09-14 | Imprimante pour documents |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0309811B1 (fr) |
AT (1) | ATE99232T1 (fr) |
DE (2) | DE3732622A1 (fr) |
ES (1) | ES2047518T3 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10039699C2 (de) * | 2000-08-14 | 2003-12-04 | Wincor Nixdorf Int Gmbh | Vorrichtung zum Bearbeiten von Wettscheinen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2333250C3 (de) * | 1973-06-29 | 1976-01-08 | K.K. Copal, Tokio | Thermodrucker |
US4422376A (en) * | 1980-02-09 | 1983-12-27 | Teraoka Seikosho Co., Ltd. | Printing control apparatus for a label printer |
EP0111297B1 (fr) * | 1982-12-07 | 1989-08-09 | Kabushiki Kaisha Toshiba | Appareil d'impression thermique |
US4614949A (en) * | 1983-10-20 | 1986-09-30 | Ricoh Company, Ltd. | Transfer-type thermal printer |
-
1987
- 1987-09-28 DE DE19873732622 patent/DE3732622A1/de not_active Withdrawn
-
1988
- 1988-09-14 DE DE88115019T patent/DE3886644D1/de not_active Expired - Fee Related
- 1988-09-14 EP EP88115019A patent/EP0309811B1/fr not_active Expired - Lifetime
- 1988-09-14 ES ES88115019T patent/ES2047518T3/es not_active Expired - Lifetime
- 1988-09-14 AT AT88115019T patent/ATE99232T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3732622A1 (de) | 1989-04-06 |
DE3886644D1 (de) | 1994-02-10 |
EP0309811A2 (fr) | 1989-04-05 |
ES2047518T3 (es) | 1994-03-01 |
ATE99232T1 (de) | 1994-01-15 |
EP0309811A3 (fr) | 1991-01-09 |
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