EP0719645B1 - Tintenstrahldrucker - Google Patents

Tintenstrahldrucker Download PDF

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Publication number
EP0719645B1
EP0719645B1 EP95118339A EP95118339A EP0719645B1 EP 0719645 B1 EP0719645 B1 EP 0719645B1 EP 95118339 A EP95118339 A EP 95118339A EP 95118339 A EP95118339 A EP 95118339A EP 0719645 B1 EP0719645 B1 EP 0719645B1
Authority
EP
European Patent Office
Prior art keywords
printing head
primary
movable support
carriage
printer
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
Application number
EP95118339A
Other languages
English (en)
French (fr)
Other versions
EP0719645A3 (de
EP0719645A2 (de
Inventor
Gilbert Gavillet
Marcellino Requena
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.)
Olivetti Tecnost SpA
Original Assignee
Olivetti Tecnost SpA
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 Olivetti Tecnost SpA filed Critical Olivetti Tecnost SpA
Publication of EP0719645A2 publication Critical patent/EP0719645A2/de
Publication of EP0719645A3 publication Critical patent/EP0719645A3/de
Application granted granted Critical
Publication of EP0719645B1 publication Critical patent/EP0719645B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J2/16505—Caps, spittoons or covers for cleaning or preventing drying out
    • B41J2/16508—Caps, spittoons or covers for cleaning or preventing drying out connected with the printer frame
    • B41J2/16511—Constructions for cap positioning
    • 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
    • B41J2002/16576—Cleaning means pushed or actuated by print head movement

Definitions

  • the present invention relates to a jet printer ink provided with a movable carriage arranged so as to ability to receive interchangeable print head with at least one print head of a second type, printer with maintenance station having at least two types of caps intended for be applied by an actuating mechanism on the head of the type for which they are intended.
  • inkjet printers it is to protect the ink ejection nozzles from the print head, when it is in the position rest for an extended time between periods in order to avoid drying of the ink leading to blockage of the nozzles.
  • a nozzle is applied against the nozzle plate.
  • hood that maintains a certain humidity level.
  • the device which is the subject of the present invention applies to a printer with a printhead interchangeable plug-in in the mobile carriage printing.
  • Different types of heads can be plugged into the carriage, for example a black ink head or a head with multicolored ink.
  • caps are provided respective for each type of plug-in head.
  • US Patent 5,155,497 describes a maintenance station for a printer of this type.
  • This station includes a support rotating 180 ° around a parallel axis the direction of movement of the carriage and on which two caps are mounted in opposite positions via two longitudinally movable slides along this direction of travel of the carriage mobile. After detecting the type of mounted print head on the carriage, the rotating support rotates the slide and the cap corresponding to the head, the carriage then drives the slide longitudinally to apply the cap against the plate of the nozzles.
  • This maintenance station is composed of a large number of parts and is of a complicated construction. In besides it cannot be integrated in printers already existing.
  • the object of the present invention is to remedy these disadvantages and the invention is characterized for this purpose by the fact that the maintenance station understands at minus a main cap mounted on a movable support main and intended to cooperate with said printhead interchangeable and at least one additional cap mounted on at least one secondary mobile support and arranged to be interposed between the main cap and the second type print head.
  • the print head of the second type has at least one element of form different from the interchangeable print head, this element being arranged to control movement secondary mobile support to insert one or more of the additional caps between the main cap and the second type print head when the carriage equipped with the second type print head is moved to the maintenance station.
  • the shape of the print head thus determines the selection of the cap which will be applied against the nozzles, which allows simple and safe operation, while having a construction of a low cost price.
  • the secondary mobile support (s) are slidably mounted on the printer in one direction parallel to the direction of travel of the carriage mobile, the printer comprising an actuated lever mechanism by said element of different shape and arranged so as to move the secondary mobile support (s) against the action of an elastic member to interpose at minus one additional cap between the main cap and the second type print head, when the cart is moved to the maintenance station.
  • the application of or one of the additional caps against the print head of second type plugged into the carriage is carried out by the pushing the main cap towards this head printing.
  • FIGS. 1a) to 1d) schematically illustrate the principle underlying the invention.
  • Figure 2 is a side view of the embodiment shown during printing.
  • Figure 3 is a front view of Figure 2, some elements not shown.
  • Figure 4 is a side view of the embodiment shown with the print head in the rest position in the maintenance station.
  • Figure 5 is a front view of Figure 4, some elements not shown.
  • a maintenance station 3 of a printer includes a main mobile support 4 on which a cap is slidably mounted main 5 secured to a cap holder 6.
  • a head interchangeable printer 8 plugged into an east carriage moved to a position in the maintenance station where it is arranged opposite the main cap 5. This the latter is then applied against the part nozzles front of the print head 8 to prevent drying ink, as shown in Figure 1b).
  • the printer is arranged to receive at least one another type of print head 10 having a shape or an element of different shape 11 (FIG. 1c)).
  • This element 11 serves as a selection organ for controlling the placement of an additional cap 12 which is interposed between the main cap 5 and the front part of the print head 10, when the latter is mounted on the carriage. Then apply the cap additional 12 against the print head 10 is carried out by pushing the main cap 5 towards of the print head 10.
  • the cap additional 12 remains stationary in a position laterally offset as shown in Figures 1a and 1b.
  • the main cap 5 with its cap holder 6 are resiliently mounted on the support 4, on which they slide with a predetermined stroke delimited by stops not shown, thanks to a spring 14 which is more or less compressed depending on whether the additional cap 12 is inserted or not.
  • the maintenance station 3 is arranged laterally outside the printing area so as to cooperate with the carriage 20 and the print head 8 or 10 plugged into it cart.
  • This maintenance station 3 comprises a chassis 24 on which is slidably mounted vertically the main mobile support 4 pulled by a spring 25 against a stop 26 ( Figure 2).
  • the main mobile support 4 carried the cap holder 6 and the main cap 5 which can be lowered, as illustrated in FIG. 3 in mixed lines to be applied directly against the interchangeable print head 8.
  • Printer includes for this purpose an actuation mechanism 30 comprising a lever 31 articulated along a pivot 32 on the chassis 24.
  • This lever 31 has a branch 33 intended to cooperate with a part 34 of the carriage 20 and a branch 36 arranged so as to cooperate with the main mobile support 4.
  • the actuation mechanism 30 also has a pinion 38 rotated by a motor not shown of the printer and who is likely to cooperate with a tooth 39 secured to the main mobile support 4 (figure 2).
  • the printer motor rotates the pinion 38 to resiliently apply the main cap 5 against the face of the nozzles of the print head 8.
  • the print head 10 of the second type can be plugged into the carriage 20 to the place of the head 8.
  • the element of different shape 11 consists of a finger 11 intended to cooperate with a lever mechanism 42 for interposing the additional cap 12 between the main cap 5 and the print head 10.
  • This additional cap 12 is fixed on a support secondary mobile 44 pivotally and slidingly mounted on a shaft 45 fixed to the chassis 24.
  • a spring 43 placed on this shaft requests the secondary mobile support 44 towards a rest position illustrated in Figures 2 and 3, in which the secondary cap 12 is is rotated by an angle of about 20 ° upwards by relative to the horizontal and to the left end of the tree 45.
  • the lever mechanism 42 includes a first lever 46 pivotally mounted at 47 on the chassis 24. It has a first branch 48 capable of cooperating with the finger 11 as a form element and a second branch 49 comprising a cleat 50 cooperating with a second lever 52 of the mechanism. This lever 52 is pivotally mounted at 53 on the chassis 24 and comes into contact with the cleat by a branch 54 and with the secondary mobile support 44 by a branch 55.
  • the second type print head 10 thus acts on the lever couple 46, 52 which transmit the movement of translation from the head to the secondary mobile support 44 to place the additional cap 12 opposite this printhead 10.
  • the distance between the cap main 5 of nozzle surface 15 of head 10 is sufficient to allow free insertion of the secondary mobile support 44 and cap assembly secondary 12.
  • the embodiment described above is in no way limiting and that it can receive any desirable modifications inside of the framework as defined by claim 1.
  • the mechanisms controlling the intercalation of the secondary cap and lowering of movable supports could be done differently, for example without the intervention of levers by direct action of a part of the print head and the carriage on the support secondary and main mobile.
  • the secondary mobile support would include two or more caps whose respective positioning opposite the plug-in print head would be secured by different finger lengths of the print heads respective; the sliding stroke of the support secondary mobile would for example be controlled accordingly by the fingers provided on the print heads.
  • One or more caps could be connected by flexible tube to a suction pump allowing priming the print head or fitted with an absorbent pad the ink.
  • the maintenance station may also be equipped with one or more flaps intended to wipe the front of the print heads. These flaps could be retractable or not on the main mobile support or on the chassis.

Landscapes

  • Ink Jet (AREA)

Claims (8)

  1. Tintenstrahldrucker ausgerüstet mit einem mobilen Wagen (20), welcher derart angeordnet ist, dass er mit einem austauschbaren Druckkopf (8) versehen werden kann, der mit zumindest einem Druckkopf (10) eines zweiten Typs austauschbar ist, wobei der Drucker eine Wartungsstation (3) enthält, welche zumindest zwei Typen von Schutzkappen (5, 12) aufweist, die durch einen Antriebsmechanismus (30) auf den Druckkopf des Typs, für welchen sie konzipiert sind, angebracht werden können, wobei der Tintenstrahldrucker dadurch gekennzeichnet ist, dass die Wartungsstation mindestens eine primäre Schutzkappe (5) enthält, die auf einer primären mobilen Halterung (4) angebracht ist und dem Zusammenspiel mit dem genannten austauschbaren Druckkopf (8) dient, und zumindest eine zusätzliche Schutzkappe (12) aufweist, welche auf zumindest einer sekundären mobilen Halterung (44) derart angebracht ist, dass sie zwischen die primäre Schutzkappe (5) und den Druckkopf (10) des zweiten Typs geschoben werden kann.
  2. Drucker gemäss Anspruch 1, dadurch gekennzeichnet, dass der Druckkopf (10) des zweiten Typs zumindest ein Element (11) verschieden von der Form des austauschbaren Druckkopfes (8) enthält, wobei dieses Element (11) derart gestaltet ist, um die Verstellung der sekundären mobilen Halterung (44) zum Einfügen der zusätzlichen Schutzkappe(n) (12) zwischen die primäre Schutzkappe (5) und den Druckkopf (10) des zweiten Typs zu kontrollieren, sobald der Wagen (20) mit dem Druckkopf (10) des zweiten Typs zur Wartungsstation (3) bewegt wird.
  3. Drucker gemäss Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zusätzliche(n) Schutzkappe(n) (12) von ihrer Form her generell flach ist (sind).
  4. Drucker gemäss Anspruch 2 oder 3, dadurch gekennzeichnet, dass die sekundäre(n) mobile(n) Halterung(en) (44) derart auf dem Drucker gleitend angebracht ist (sind), dass ihre Bewegungsrichtung parallel zu derjenigen des mobilen Wagens (20) ist, wobei der Drucker ein Hebelwerk (42) enthält, welches durch das benannte Element (11) verschiedener Form betätigt wird und das derart gestaltet ist, um die sekundäre(n) mobile(n) Halterung(en) gegen den Druck eines elastischen Teils (43) zu bewegen, um zumindest eine zusätzliche Schutzkappe (12) zwischen die primäre Schutzkappe (5) und den Druckkopf (10) des zweiten Typs zu schieben, sobald der Wagen (20) zur Wartungsstation (3) bewegt wird.
  5. Drucker gemäss einem der Anprüche 2 bis 4, dadurch gekennzeichnet, dass die Anbringung der oder einer der zusätzlichen Schutzkappe(n) (12) auf dem Druckkopf (10) des zweiten Typs, welcher auf dem Wagen (20) befestigt ist, durch den Druck der primären Schutzkappe (5) in Richtung dieses Druckkopfes (10) erfolgt.
  6. Drucker gemäss Anspruch 5, dadurch gekennzeichnet, dass der Antriebsmechanismus (30) der Bewegung der primären mobilen Halterung (4) in Richtung des auf dem Wagen (20) befestigten Druckkopfes (8,10) dient und ein Getrieberad (38) enthält, welches durch einen Motor des Druckers mittels Rotation angetrieben werden kann und mit einem hervorstehenden Element (39), befestigt an der primären mobilen Halterung (4), zusammenspielen kann, wobei der Antriebsmechanismus (30) zumindest ein Antriebsteil (31) aufweist, welches mit dem mobilen Wagen (20) zusammenspielt, sobald letzterer zur Wartungsstation (3) bewegt wird, um die primäre mobile Halterung (4) von einer ersten Position, in welcher das hervorstehende Element (39) nicht in Kontakt mit dem Getrieberad (38) ist, auf eine zweite Position zu bringen, in welcher das hervorstehende Element (39) derart von dem Getrieberad (39) gegriffen wird, dass letzteres die primäre mobile Halterung (4) in Richtung des befestigten Druckkopfes (8,10) bewegt.
  7. Drucker gemäss einem der vorhergehenden Anprüche, dadurch gekennzeichnet, dass die primäre Schutzkappe (5) eine axiale Spannkraft relativ zur primären mobilen Halterung (4) besitzt.
  8. Drucker gemäss Anspruch 7, dadurch gekennzeichnet, dass die primäre Schutzkappe (5) mittels zumindest einer Feder (14) auf der primären mobilen Halterung (4) angebracht ist.
EP95118339A 1994-12-30 1995-11-22 Tintenstrahldrucker Expired - Lifetime EP0719645B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH03970/94A CH690099A5 (fr) 1994-12-30 1994-12-30 Imprimante à jet d'encre.
CH397094 1994-12-30
CH3970/94 1994-12-30

Publications (3)

Publication Number Publication Date
EP0719645A2 EP0719645A2 (de) 1996-07-03
EP0719645A3 EP0719645A3 (de) 1997-03-19
EP0719645B1 true EP0719645B1 (de) 2001-10-10

Family

ID=4267364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118339A Expired - Lifetime EP0719645B1 (de) 1994-12-30 1995-11-22 Tintenstrahldrucker

Country Status (4)

Country Link
US (1) US5790148A (de)
EP (1) EP0719645B1 (de)
CH (1) CH690099A5 (de)
DE (1) DE69523130T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6309044B1 (en) * 1998-04-10 2001-10-30 Hewlett-Packard Company Two stage print cartridge capping technique
US6390592B2 (en) * 1998-08-28 2002-05-21 Canon Kabushiki Kaisha Ink jet recording apparatus
JP4541871B2 (ja) * 2004-12-21 2010-09-08 株式会社セイコーアイ・インフォテック メンテナンスユニット及びインクジェットプリンター
JP2014031022A (ja) * 2013-11-20 2014-02-20 Seiko Epson Corp 流体噴射装置
US11214068B2 (en) * 2018-04-30 2022-01-04 Hewlett-Packard Development Company, L.P. Printhead servicing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0423475B1 (de) * 1989-08-31 1997-01-22 Canon Kabushiki Kaisha Absaug-Regeneriervorrichtung für ein Tintenstrahlaufzeichnungsgerät
US5155497A (en) * 1991-07-30 1992-10-13 Hewlett-Packard Company Service station for ink-jet printer
IT1261111B (it) * 1993-11-11 1996-05-09 Olivetti Canon Ind Spa Stazione di pulizia per una stampante a getto di inchiostro
JP3259748B2 (ja) * 1994-03-31 2002-02-25 セイコーエプソン株式会社 インクジェット式記録装置

Also Published As

Publication number Publication date
US5790148A (en) 1998-08-04
EP0719645A3 (de) 1997-03-19
CH690099A5 (fr) 2000-04-28
EP0719645A2 (de) 1996-07-03
DE69523130T2 (de) 2002-06-20
DE69523130D1 (de) 2001-11-15

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