EP0696509B1 - Machine d'affranchissement comportant une tête d'impression à jet d'encre - Google Patents
Machine d'affranchissement comportant une tête d'impression à jet d'encre Download PDFInfo
- Publication number
- EP0696509B1 EP0696509B1 EP95401566A EP95401566A EP0696509B1 EP 0696509 B1 EP0696509 B1 EP 0696509B1 EP 95401566 A EP95401566 A EP 95401566A EP 95401566 A EP95401566 A EP 95401566A EP 0696509 B1 EP0696509 B1 EP 0696509B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzles
- row
- control means
- print 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
- 238000010926 purge Methods 0.000 claims 1
- 238000007639 printing Methods 0.000 description 34
- 238000007641 inkjet printing Methods 0.000 description 8
- 230000005284 excitation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000000429 assembly Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/1652—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B17/00—Franking apparatus
- G07B17/00459—Details relating to mailpieces in a franking system
- G07B17/00508—Printing or attaching on mailpieces
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B17/00—Franking apparatus
- G07B17/00459—Details relating to mailpieces in a franking system
- G07B17/00508—Printing or attaching on mailpieces
- G07B2017/00516—Details of printing apparatus
- G07B2017/00524—Printheads
- G07B2017/00532—Inkjet
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B17/00—Franking apparatus
- G07B17/00459—Details relating to mailpieces in a franking system
- G07B17/00508—Printing or attaching on mailpieces
- G07B2017/00516—Details of printing apparatus
- G07B2017/00556—Ensuring quality of print
Definitions
- the invention relates generally to field of postage machines which are now widely used in shipping offices of corporate mail.
- It relates more particularly to a machine franking comprising a jet print head ink.
- An inkjet print head of a machine postage includes a large number of items mechanical or electronic in addition to the specific component performing inkjet printing.
- a component is usually in the form of a small box in which are mounted a plurality of nozzles forming a row of nozzles. These nozzles are supplied with ink by a micro pump drawing ink from an ink tank. They are controlled by an electronic circuit which excites them individually to make them eject ink droplets.
- the Patent application EP 0 416 849 shows such a franking machine.
- Such inkjet printing elements are commercially available to equip printers intended to be connected to a microcomputer. Range available such items is very varied. There are elements comprising 64 nozzles, 128 nozzles, etc. The number nozzles of such an element generally determines a dimension of the pattern that can be printed by it. Yes we take the example of an element with 256 nozzles having nozzles spaced 0.127 mm (1/200 inch) apart, the dimension of the pattern likely to be printed by this element is therefore 32.5mm. In the case of an element at 128 nozzles, the size of the printable pattern is 16.25mm for the same point density.
- the postal motifs to be printed on folds with a franking machine must for example present a stamp height of 30mm. This dimension is imposed by the Postal Administration. It can vary from country to country other. To print such patterns, it is possible use multiple print items with 128 nozzles or 64 nozzles or a single element with 256 nozzles. In the two cases, the inkjet printing element (s) are mounted in a franking machine in such a way that their row of nozzles is arranged substantially perpendicular to the direction in which the folds pass postage under the print head of the machine.
- Each nozzle of an inkjet printing element is, for example, formed of two partitions made of a material piezoelectric. To eject an ink droplet of this nozzle, it suffices to deform the piezoelectric walls of the nozzle by applying an electric voltage thereto. If the 256 nozzles of such an element are numbered from B0 to B255, this element includes 257 piezoelectric partitions numbered from 0 to 256. Since 16 nozzles do not have to be excited, the partitions numbered 240 to 256 are not normally never excited by an electric voltage. he as a result the ink residing inside the B240 nozzles to B255 is never ejected.
- the object of the invention is to remedy this disadvantage.
- the invention relates to a machine franking comprising a jet print head ink including a row of nozzles in operation selectively under the control of a means of control in view to print a postal motif on a fold passing in front of the head printing, characterized in that only first nozzles consecutive rows of nozzles forming a subset separate nozzles of all the nozzles available in the row are put into operation by the control means for the printing of the postal motif and that the control means is further arranged to set operation of the other nozzles in the nozzle row, different from the first nozzles, in the absence of a fold in front of the print head to drain these seconds nozzles so as to avoid fouling during time.
- an ink recovery tank is provided in the machine, this tank being arranged under the row of nozzles.
- the control means is arranged to excite the nozzles B240 to B255 cyclically, as often as is necessary to avoid fouling, which is easy to be carried out by program.
- the excitation of the nozzles B240 to B255 takes place from preferably in the time interval available after passing a fold in front of the print head and before passing a subsequent fold in front of the print head. This time interval is largely sufficient to perform such an operation, which does not disturb the processing normal postage and does not affect the franking rate of the machine.
- control means is arranged to operate alternately different subsets of firsts nozzles, these sub-assemblies occupying positions offset at inside the set of nozzles available in the row of nozzles so as to excite over time all the nozzles in the nozzle row.
- Figure 1 is a perspective view of an element inkjet printing machine having a row of nozzles.
- Figure 2 schematically shows part of a franking machine having a jet print head ink.
- Figure 3 illustrates the organization of the nozzles in the printhead.
- FIG. 4 illustrates the second embodiment of the invention.
- a conventional inkjet printing element 1 is shown in Figure 1. It comes in the form a small box which is extended by a ramp 2 of nozzles 3.
- the boom has 256 nozzles aligned on approximately 32.5mm, the space between two nozzles being 0.127 mm (1/200 inch).
- This item is intended for be mounted in a print head of a machine postage to print a postal design designated by 4 in FIG. 1.
- the postal motif has a dimension L2 of 30mm which is shorter than the length L1 of the row of nozzles 3 in the boom 2. We understand that only a part nozzles 3 are useful for printing a postal motif.
- Figure 2 shows the franking machine inkjet printhead with printing element 1 which is part of the print head 20. It is mounted fixed on a support 21, for example a bracket, so as to overhang a guide plate 25 on which are moved in sequence, along arrow F, folds such as 24 so that one side of each fold passes under the nozzle ramp 2.
- the folds are moved on the plate 25 by rollers, belts and counter rollers per se (not shown) forming part of the machine postage.
- Printing element 1 is controlled by the electronics of the franking machine.
- This electronics conventionally comprises a microprocessor 40, a program memory 41 and an interface 42.
- the interface 42 is a register addressable by the microprocessor which contains 32 bytes into which the microprocessor loads temporarily 256 control bits respectively for 256 nozzles of printing element 1.
- one bit at position 1 causes excitation of the nozzle which corresponds to it while a bit at position 0 prevents the excitement of this nozzle.
- a nozzle When a nozzle is excited, it ejects a droplet of ink.
- the postal motif printed by the nozzles on the fold can take various forms that fit, to simplify, in a rectangle having a width L2 of 30 mm and a length l2 of about 60mm.
- the length L1 of the row of nozzles in boom 2 is therefore higher, by construction, at the width L2 of a pattern as indicated above.
- the nozzle control then continues with starting again as for the first postage cycle.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ink Jet (AREA)
- Coating Apparatus (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
Claims (7)
- Une machine d'affranchissement comportant une tête d'impression à jet d'encre (20) incluant une rangée de buses (B0-B255) mises en fonctionnement sélectivement sous la commande d'un moyen de contrôle (40,41,42) en vue d'imprimer un motif postal sur un pli passant sous la tête d'impression, caractérisée en ce que seules des premières buses (B0-B239) consécutives de la rangée de buses formant un sous-ensemble de buses distinct de l'ensemble des buses disponibles (B0-B255) dans la rangée sont mises en fonctionnement par le moyen de contrôle pour l'impression du motif postal et en ce que le moyen de contrôle est agencé en outre pour mettre en fonctionnement les autres buses (B240-B255) de la rangée de buses, différentes des premières buses (B0-B239), en l'absence d'un pli devant la tête d'impression en vue de vidanger ces dites autres buses de manière à éviter leur encrassement au cours du temps.
- La machine selon la revendication 1, comprenant un réservoir (31) pour recevoir l'encre éjectée par les dites autres buses.
- La machine selon les revendications 1 ou 2, dans laquelle le moyen de contrôle (40,41,42) est agencé pour mettre en fonctionnement lesdites autres buses (B240-B255) de façon cyclique dans l'intervalle de temps disponible après le passage d'un pli devant la tête d'impression et avant le passage d'un pli subséquent devant la tête d'impression.
- Une machine d'affranchissement comportant une tête d'impression à Jet d'encre (20) incluant une rangée de buses (B0-B255) mises en fonctionnement sélectivement sous la commande d'un moyen de contrôle (40,41,42) en vue d'imprimer un motif postal sur un pli passant sous la tête d'impression, caractérisé en ce que seulement des premières buses (B0-B239) consécutives de la rangée de buses formant un sous-ensemble de buses distinct de l'ensemble des buses disponibles (B0-B255) dans la rangée sont mises en fonctionnement par le moyen de contrôle pour l'impression du motif postal et en ce que le moyen de contrôle est agencé pour mettre en fonctionnement alternativement des sous-ensembles différents de premières buses (B0-B239;B8-B247;B16-B255), ces sous-ensembles occupant des positions décalées à l'intérieur de l'ensemble des buses disponibles (B0-B255) dans la rangée de buses de manière à exciter au cours du temps toutes les buses de la rangée de buses.
- La machine selon la revendication 4, dans laquelle le moyen de contrôle (40,41,42) alterne la mise en fonctionnement des sous-ensembles de premières buses à chaque cycle d'affranchissement.
- La machine selon la revendication 5, dans laquelle il est prévu un circuit additionneur (43) d'adresses qui alterne la mise en fonctionnement des sous-ensembles de premières buses.
- La machine selon l'une des revendications 1 à 6, dans laquelle il est aussi prévu un compteur pour chaque buse qui comptabilise le nombre de fois que cette buse est excitée en vue de produire un message d'alerte ou de bloquer le fonctionnement de la machine d'affranchissement quand l'un des compteurs dépasse une valeur de seuil.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9409804 | 1994-08-08 | ||
FR9409804A FR2723339B1 (fr) | 1994-08-08 | 1994-08-08 | Machine d'affranchissement comportant une tete d'impression a jet d'encre |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0696509A1 EP0696509A1 (fr) | 1996-02-14 |
EP0696509B1 true EP0696509B1 (fr) | 1998-09-02 |
Family
ID=9466160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95401566A Expired - Lifetime EP0696509B1 (fr) | 1994-08-08 | 1995-06-29 | Machine d'affranchissement comportant une tête d'impression à jet d'encre |
Country Status (4)
Country | Link |
---|---|
US (1) | US6390577B1 (fr) |
EP (1) | EP0696509B1 (fr) |
DE (1) | DE69504441T2 (fr) |
FR (1) | FR2723339B1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1782954A1 (fr) | 2005-11-02 | 2007-05-09 | Francotyp-Postalia GmbH | Dispositif pour le nettoyage d'une tête à jet d'encre |
EP1782955A1 (fr) | 2005-11-02 | 2007-05-09 | Francotyp-Postalia GmbH | Méthode et dispositif de purge d'une tête d'impression à jet d'encre |
DE102006023542B3 (de) * | 2006-05-19 | 2007-10-25 | Francotyp-Postalia Gmbh | Verfahren zum Freispritzen der Düsen eines Tintendruckkopfes |
EP1857282A1 (fr) | 2006-05-19 | 2007-11-21 | Francotyp-Postalia GmbH | Procédé de pulvérisation libre des buses d'une tête d'impression |
EP2065200A1 (fr) | 2007-11-30 | 2009-06-03 | Francotyp-Postalia GmbH | Dispositif d'entretien d'une tête d'impression |
EP2145769A2 (fr) | 2008-07-14 | 2010-01-20 | Francotyp-Postalia GmbH | Installation destinée à l'échange de modules d'impression d'encre |
US7959276B2 (en) | 2006-07-21 | 2011-06-14 | Francotyp-Postalia Gmbh | Configuration for exchanging inkjet printing modules |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2766757A1 (fr) * | 1997-08-01 | 1999-02-05 | Secap | Dispositif pour imprimer un signe et machine a affranchir le comportant |
NL1010616C2 (nl) * | 1998-11-20 | 2000-05-23 | Ptt Post Holdings Bv | Werkwijze en inrichtingen voor het afdrukken van een frankeerkenmerk op een document. |
ATE273138T1 (de) * | 2000-02-23 | 2004-08-15 | Frama Ag | Frankiermaschine |
JP2003053941A (ja) * | 2001-08-10 | 2003-02-26 | Canon Inc | インクジェット記録装置 |
US7289243B2 (en) * | 2002-08-07 | 2007-10-30 | Lexmark International, Inc. | Apparatus and method for data compression optimized by print head architecture |
US7111923B2 (en) * | 2003-12-16 | 2006-09-26 | Pitney Bowes Inc. | Inkjet printing system for containment and evaporation of waste ink |
JP2007015217A (ja) | 2005-07-07 | 2007-01-25 | Canon Inc | インクジェット記録装置、インクジェット記録方法および予備吐出制御方法 |
DE102007060735B4 (de) * | 2007-12-17 | 2011-11-03 | Francotyp-Postalia Gmbh | Vorrichtung zum Freispritzen eines Tintenstrahldruckkopfes |
US11860180B2 (en) * | 2020-02-10 | 2024-01-02 | Funai Electric Co., Ltd. | Removable maintenance fluid holder |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3925789A (en) * | 1971-12-16 | 1975-12-09 | Casio Computer Co Ltd | Ink jet recording apparatus |
EP0081153B1 (fr) * | 1981-11-30 | 1987-05-20 | Alsthom | Bobine électrique d'inductance shunt |
JPS63252748A (ja) * | 1987-04-09 | 1988-10-19 | Canon Inc | 液体噴射記録装置の目詰り防止装置 |
GB8919917D0 (en) * | 1989-09-04 | 1989-10-18 | Alcatel Business Systems | Franking machine |
US5185615A (en) * | 1990-04-11 | 1993-02-09 | Canon Kabushiki Kaisha | Ink jet recording method and apparatus for recovering ejection at a particular orifice by ejecting ink from adjacent orifices |
US5051761A (en) * | 1990-05-09 | 1991-09-24 | Xerox Corporation | Ink jet printer having a paper handling and maintenance station assembly |
US5455615A (en) * | 1992-06-04 | 1995-10-03 | Tektronix, Inc. | Multiple-orifice drop-on-demand ink jet print head having improved purging and jetting performance |
SG47503A1 (en) * | 1992-09-25 | 1998-04-17 | Hewlett Packard Co | Drop count-based ink-jet printer control method and apparatus |
ATE200252T1 (de) * | 1992-10-30 | 2001-04-15 | Canon Kk | Tintenstrahlaufzeichnungssystem und vorrichtung |
US5617122A (en) * | 1992-12-10 | 1997-04-01 | Canon Kabushiki Kaisha | Recording apparatus and method for controlling recording head driving timing |
-
1994
- 1994-08-08 FR FR9409804A patent/FR2723339B1/fr not_active Expired - Fee Related
-
1995
- 1995-06-29 EP EP95401566A patent/EP0696509B1/fr not_active Expired - Lifetime
- 1995-06-29 DE DE69504441T patent/DE69504441T2/de not_active Expired - Lifetime
- 1995-08-02 US US08/510,491 patent/US6390577B1/en not_active Expired - Fee Related
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7645021B2 (en) | 2005-11-02 | 2010-01-12 | Francotyp-Postalia Gmbh | Method and device for spray cleaning an inkjet print head |
EP1782955A1 (fr) | 2005-11-02 | 2007-05-09 | Francotyp-Postalia GmbH | Méthode et dispositif de purge d'une tête d'impression à jet d'encre |
DE102005052150A1 (de) * | 2005-11-02 | 2007-05-24 | Francotyp-Postalia Gmbh | Vorrichtung zur Reinigung eines Tintendruckkopfes |
DE102005052151B3 (de) * | 2005-11-02 | 2007-05-31 | Francotyp-Postalia Gmbh | Vorrichtung zum Freispritzen eines Tintendruckkopfes |
DE102005052150B4 (de) * | 2005-11-02 | 2007-09-20 | Francotyp-Postalia Gmbh | Vorrichtung zur Reinigung eines Tintendruckkopfes |
US7708376B2 (en) | 2005-11-02 | 2010-05-04 | Francotyp Postalia Gmbh | Device for cleaning an inkjet printhead |
EP1782954A1 (fr) | 2005-11-02 | 2007-05-09 | Francotyp-Postalia GmbH | Dispositif pour le nettoyage d'une tête à jet d'encre |
EP1857282A1 (fr) | 2006-05-19 | 2007-11-21 | Francotyp-Postalia GmbH | Procédé de pulvérisation libre des buses d'une tête d'impression |
EP1857283A1 (fr) | 2006-05-19 | 2007-11-21 | Francotyp-Postalia GmbH | Procédé de pulvérisation libre des buses d'une tête d'impression |
DE102006023542B3 (de) * | 2006-05-19 | 2007-10-25 | Francotyp-Postalia Gmbh | Verfahren zum Freispritzen der Düsen eines Tintendruckkopfes |
US7959276B2 (en) | 2006-07-21 | 2011-06-14 | Francotyp-Postalia Gmbh | Configuration for exchanging inkjet printing modules |
EP2065200A1 (fr) | 2007-11-30 | 2009-06-03 | Francotyp-Postalia GmbH | Dispositif d'entretien d'une tête d'impression |
DE102007057819A1 (de) | 2007-11-30 | 2009-06-04 | Francotyp-Postalia Gmbh | Vorrichtung zum Reinhalten eines Tintendruckkopfes |
EP2145769A2 (fr) | 2008-07-14 | 2010-01-20 | Francotyp-Postalia GmbH | Installation destinée à l'échange de modules d'impression d'encre |
DE102008033052A1 (de) | 2008-07-14 | 2010-01-28 | Francotyp-Postalia Gmbh | Anordnung zum Auswechseln von Tintendruckmodulen |
Also Published As
Publication number | Publication date |
---|---|
US6390577B1 (en) | 2002-05-21 |
DE69504441T2 (de) | 1999-02-04 |
FR2723339A1 (fr) | 1996-02-09 |
FR2723339B1 (fr) | 1996-10-31 |
EP0696509A1 (fr) | 1996-02-14 |
DE69504441D1 (de) | 1998-10-08 |
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