EP2065200A1 - Dispositif d'entretien d'une tête d'impression - Google Patents

Dispositif d'entretien d'une tête d'impression Download PDF

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Publication number
EP2065200A1
EP2065200A1 EP08017192A EP08017192A EP2065200A1 EP 2065200 A1 EP2065200 A1 EP 2065200A1 EP 08017192 A EP08017192 A EP 08017192A EP 08017192 A EP08017192 A EP 08017192A EP 2065200 A1 EP2065200 A1 EP 2065200A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
wiping roller
roller
jacket
receptacle
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.)
Withdrawn
Application number
EP08017192A
Other languages
German (de)
English (en)
Inventor
Wolfgang Muhl
Axel Ortmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Francotyp Postalia GmbH
Original Assignee
Francotyp Postalia GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Francotyp Postalia GmbH filed Critical Francotyp Postalia GmbH
Publication of EP2065200A1 publication Critical patent/EP2065200A1/fr
Withdrawn legal-status Critical Current

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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
    • B41J2/16535—Cleaning of print head nozzles using wiping constructions
    • 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
    • B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads

Definitions

  • the invention relates to a device for keeping an ink jet print head, in particular the surface with the nozzle outlet openings, for franking and / or addressing machines.
  • ink printing technique has the disadvantage that in addition to the free spraying of the nozzle, the area with the nozzle outlet openings - hereinafter referred to for brevity as nozzle area - must be cleaned regularly to to prevent clogging of the nozzles and to ensure a secure closure through the sealing cap.
  • a multiple wiping is required for this.
  • the machine is not available for normal operation. Downtime reduces mail throughput.
  • the ink jet print head is selectively pivotable by means of associated adjusting means in a printing position or in different cleaning areas and in a sealing position, see also below Fig. 1 ,
  • a cleaning and sealing device 13 - in the further RDV - is also behind the guide plate - not shown - but arranged below the ink jet print head 110.
  • the RDV 13 is moved to the ink jet print head 110 and away from it again.
  • the RDV 13 has a receptacle 131 with a plurality of successive wiper lips 1311, a spray slot 1312 and a sealing cap 1313, which are arranged in the order named behind the guide plate.
  • the ink jet print head 110 is pivoted away from the printing position so far that the nozzle surface 111 lies in the engagement region of the wiper lips 1311, which slide along the same during the cleaning operation.
  • the wiper lips 1311 In order to achieve a thorough cleaning, despite several wiper lips 1311 must be wiped several times. This requires correspondingly long downtime.
  • the nozzle surface 111 is arranged orthogonal to the wiper lips 1311.
  • a support 1317 with wipers 13171 is provided, which is arranged stationarily in the engagement region of the wiper lips 1317 above it.
  • the wiper lips 1317 are guided along the wipers 13171 after the cleaning operation.
  • the wiping residues may fall into an ink sump below the RDS 13.
  • an apparatus for cleaning inkjet nozzles of an inkjet print head of a postage meter machine comprising means for scraping the nozzle surface.
  • the means is an impeller which slides with its wings along the nozzle surface of the ink jet print head stationarily mounted in a print window after at least one mailpiece has passed the ink print head.
  • the cleaning device also includes a scraper for cleaning the blades of the impeller.
  • the impeller is mounted on a Schwenktragarm, which can move between the scraping position and the rest position.
  • the movement of the Schwenktragarmes is controlled in dependence on the number of counted by a position taker mailpieces.
  • the position taker is mounted in the transport path of the mail items and controls an electromagnet which is coupled to the swivel arm.
  • the impeller has a rotary motor.
  • the transport area is polluted during the cleaning process by the rotating impeller. Because the impeller due to the pivoting movement on the Nozzle surface is placed only in the center of the row of nozzles, the edge areas are either not touched or at a correspondingly larger extent only with little force. This results in incomplete cleaning of the nozzle surface.
  • the technical equipment effort is considerable. Using two inkjet print heads to print longer columns doubles the cleaning effort.
  • Purpose of the invention is to increase the reliability of the postage meter, an extension of the life of the printing device and the largest possible letter throughput.
  • the invention has for its object to provide a device for cleaning the nozzle exit surface of an ink jet print head in a franking and / or addressing, with the entire nozzle exit surface is cleaned in a short time, contamination of the transport area is avoided and for the equipment complexity low is.
  • the printing system 1 consists of a frame 10, two printing modules I, II, 11, a receptacle 12 for the aforementioned two and the associated RDV 13, see also Fig. 3 ,
  • Each printing module 11 consists of an ink jet print head - in the further TDK - 110 together with ink supply and drive board - not labeled -.
  • the nozzle surfaces 111 of the TDK 110 and the printing modules 11 are arranged offset from each other in parallel. In this way the required pressure gap length is achieved. Accordingly, the printing modules 11 are arranged offset in the receptacle 12.
  • the receptacle 12 is pivotally mounted about an axis 121 which is fixed in the frame 10. The adjustment of the receptacle 12 by means of a servomotor via a worm gear, not designated.
  • a tooth profile 101 is provided on the frame 10.
  • the RDV 13 has a receptacle 131 with the aforementioned wiping roller 1310, two spray slots 1312 and two sealing caps 1313, which are arranged in the order named behind the guide plate, not shown, see also Fig. 4, 5 and 7 , As can be seen, both nozzle surfaces 111 are cleaned with one and the same wiping roller 1310.
  • a means for adjusting the receptacle 131 and thus at the same time for the RDV 13 is a combination of timing belt 13105, gear 13106, pinion 13107 and common drive shaft 13108, wherein the pinion engages the toothed profile 101 on the frame 10.
  • the drive shaft 13108 is connected in a manner not shown with a corresponding motor.
  • the wiping roller 1310 is connected via the toothed belt 13105 to the drive for the receptacle 131 and is automatically rotated with its adjustment.
  • a retaining bracket 1318 is mounted on the receptacle 131 in an articulated manner on the drive shaft 13108, which is also designed as a carrier 1317 for the wiper 13171 for the wiping roller 1310.
  • the scraper 13171 rests with its blade-shaped edge in parallel force-locking manner on the wiping roller 1310. In this way, the wiping roller 1310 is automatically cleaned with commissioning at the same time without a change of position.
  • the wiping roller 1310 consists of an elastic jacket 13101 and a rigid core 13102 on an axis 13103.
  • the outer contour of the core 13102 and the inner contour of the jacket 13101 are adapted to one another in a form-fitting manner.
  • the core 13102 can also be designed so that the axis 13103 is omitted.
  • the scraper 13171 is inserted into a slot in the carrier 1317. Thus, a replacement for replacement or cleaning is easily possible.
  • a wiping roller 1310 is shown with an autonomous drive 13109.
  • the autonomous drive is realized in the form of a gear pair with spur gear teeth and a motor.
  • Fig. 8 preferred embodiments of the jacket 13101 of the wiping roller 1310 are shown.
  • the jacket 13101 is designed as a hollow cylinder made of an elastic absorbent material such as plastic sponge.
  • Fig. 8b is the shell 13101 designed as a hollow cylinder made of a rubber-elastic material with lamellae on the outer circumference, which are parallel to the roll axis. It is also possible to arrange the lamellae spirally around the roll axis, see Fig. 8d ,
  • the jacket 13101 is designed as a hollow cylinder made of a rubber-elastic material with a spirally circulating semicircular bead on the outer circumference.
  • the ink and dust particles are removed from the nozzle surface 111 similar to the principle of an Archimedean roller and pushed sideways.

Landscapes

  • Ink Jet (AREA)
EP08017192A 2007-11-30 2008-09-30 Dispositif d'entretien d'une tête d'impression Withdrawn EP2065200A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007057819A DE102007057819A1 (de) 2007-11-30 2007-11-30 Vorrichtung zum Reinhalten eines Tintendruckkopfes

Publications (1)

Publication Number Publication Date
EP2065200A1 true EP2065200A1 (fr) 2009-06-03

Family

ID=40394516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08017192A Withdrawn EP2065200A1 (fr) 2007-11-30 2008-09-30 Dispositif d'entretien d'une tête d'impression

Country Status (4)

Country Link
US (1) US8104869B2 (fr)
EP (1) EP2065200A1 (fr)
CA (1) CA2645420C (fr)
DE (1) DE102007057819A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5720273B2 (ja) * 2011-02-02 2015-05-20 株式会社リコー インク収容容器及び画像形成装置
WO2015126355A1 (fr) 2014-02-18 2015-08-27 Hewlett-Packard Development Company, L.P. Essuyage de tête d'impression
CN107521232B (zh) * 2017-10-26 2024-02-09 惠州市环球飞腾数码设备有限公司 一种喷头擦拭机构及喷墨打印机
US11305540B2 (en) 2018-07-20 2022-04-19 Hewlett-Packard Development Company, L.P. Cleaning print head cap
DE102019107986A1 (de) 2019-03-28 2020-10-01 Koenig & Bauer Ag Druckaggregat
DE102021110417A1 (de) * 2021-04-23 2022-10-27 Canon Production Printing Holding B.V. Tintendrucker und Verfahren zum Bedrucken eines bahnförmigen Aufzeichnungsträgers

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4424771C1 (de) 1994-07-05 1995-11-23 Francotyp Postalia Gmbh Tintendruckkopf aus einzelnen Tintendruckmodulen
EP0696509B1 (fr) 1994-08-08 1998-09-02 Neopost Industrie Machine d'affranchissement comportant une tête d'impression à jet d'encre
US5870116A (en) * 1994-04-13 1999-02-09 Canon Kabushiki Kaisha Spiral staggered cleaning member for a full-width array ink jet apparatus
US5946009A (en) * 1996-04-08 1999-08-31 Samsung Electronics Co., Ltd. Service station for ink-jet printer
US6530643B1 (en) * 2000-11-09 2003-03-11 Lexmark International, Inc. Rotary wiping assembly for a nozzle plate in an ink jet printer
EP1504905B1 (fr) 2003-08-06 2007-01-03 Neopost Technologies Dispositif de nettoyage au vol de buses d'éjection d'encre
US20070002094A1 (en) * 2005-07-04 2007-01-04 Soo-Hyun Kim Print head wiper, inkjet image forming apparatus with the same, and method of maintaining the inkjet image forming apparatus
EP1782954A1 (fr) 2005-11-02 2007-05-09 Francotyp-Postalia GmbH Dispositif pour le nettoyage d'une tête à jet d'encre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115250A (en) * 1990-01-12 1992-05-19 Hewlett-Packard Company Wiper for ink-jet printhead
JPH06340081A (ja) * 1993-04-19 1994-12-13 Xerox Corp 全幅インクジェットプリンタ用プリントヘッドメンテナンス装置
JP3530621B2 (ja) * 1994-04-08 2004-05-24 キヤノン株式会社 回復装置及び該回復装置を備えたインクジェット記録装置
US6183060B1 (en) * 1997-07-18 2001-02-06 Brother Kogyo Kabushiki Kaisha Ink jet recorder
JPH11300980A (ja) * 1998-04-22 1999-11-02 Seiko Epson Corp インクジェット式記録装置
JP4945843B2 (ja) * 2001-02-21 2012-06-06 ソニー株式会社 インクジェットヘッド及びインクジェットプリンタ

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5870116A (en) * 1994-04-13 1999-02-09 Canon Kabushiki Kaisha Spiral staggered cleaning member for a full-width array ink jet apparatus
DE4424771C1 (de) 1994-07-05 1995-11-23 Francotyp Postalia Gmbh Tintendruckkopf aus einzelnen Tintendruckmodulen
EP0696509B1 (fr) 1994-08-08 1998-09-02 Neopost Industrie Machine d'affranchissement comportant une tête d'impression à jet d'encre
US5946009A (en) * 1996-04-08 1999-08-31 Samsung Electronics Co., Ltd. Service station for ink-jet printer
US6530643B1 (en) * 2000-11-09 2003-03-11 Lexmark International, Inc. Rotary wiping assembly for a nozzle plate in an ink jet printer
EP1504905B1 (fr) 2003-08-06 2007-01-03 Neopost Technologies Dispositif de nettoyage au vol de buses d'éjection d'encre
US20070002094A1 (en) * 2005-07-04 2007-01-04 Soo-Hyun Kim Print head wiper, inkjet image forming apparatus with the same, and method of maintaining the inkjet image forming apparatus
EP1782954A1 (fr) 2005-11-02 2007-05-09 Francotyp-Postalia GmbH Dispositif pour le nettoyage d'une tête à jet d'encre

Also Published As

Publication number Publication date
CA2645420A1 (fr) 2009-05-30
CA2645420C (fr) 2012-05-15
US20090141076A1 (en) 2009-06-04
US8104869B2 (en) 2012-01-31
DE102007057819A1 (de) 2009-06-04

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