EP2072263A2 - Device for clearing an ink printing head - Google Patents
Device for clearing an ink printing head Download PDFInfo
- Publication number
- EP2072263A2 EP2072263A2 EP08019553A EP08019553A EP2072263A2 EP 2072263 A2 EP2072263 A2 EP 2072263A2 EP 08019553 A EP08019553 A EP 08019553A EP 08019553 A EP08019553 A EP 08019553A EP 2072263 A2 EP2072263 A2 EP 2072263A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- free
- feed table
- shaft support
- shaft
- opening
- 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.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 30
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 238000011144 upstream manufacturing Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 2
- 230000032258 transport Effects 0.000 description 31
- 230000005484 gravity Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic 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
- B41J2/16526—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 by applying pressure only
-
- 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
-
- 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
-
- 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 to a device for the free-spraying of an ink-jet printhead according to the preamble of claim 1.
- the invention is used in microprocessor-controlled printing devices and is suitable for franking machines and other mail processing devices.
- the inkjet print head is moved during printing and cleaned and maintained on the one hand in a cleaning position and on the other hand held in a printing pause in print readiness and can be regularly sprayed free.
- a device for free spraying of an ink jet print head of an ink printing system in which the printed matter or mail pieces are transported past a fixed during printing ink jet print head and wherein the Ink printhead is arranged stationary pivotally behind a guide plate, and with the addition of the usual functions, such as wiping and sealing, a free spraying during the transport of the printed material or mail items is possible.
- a free spray position near the printing position allows the elimination of the longer travel times from a printing position to a cleaning and sealing position.
- a compact transport device for mail pieces is needed, which should not be polluted by the free spraying.
- at least one ink cartridge is arranged opposite to the direction of gravity over a printing window in the z-direction of a Cartesian coordinate system.
- at least one ink jet printhead ejects ink droplets opposite to the z direction in the direction of gravity, which fly through the printing window.
- the printing window is arranged on the edge of a conveyor belt in the y-direction in a housing part, wherein the conveyor belt transports a flat good to be printed on the edge during printing in the transport direction x at the at least one print head over.
- the invention has for its object to develop a device for the free spraying of an ink jet print head, which uses a free-jet slot to reduce the ink contamination in a postage meter.
- the device consists of a feed table with a counter to a spring force deflectable shaft support, which is equipped with at least one free-jet slot, which is arranged opposite at least one ink-jet printhead.
- a free-jet slot is provided, which is formed on a resilient shaft support, which is coupled to at least one actuating element and arranged in the transport path below the at least one inkjet printhead, wherein the feed table includes an opening for the actuating element.
- the shaft carrier is shaped in such a way that the at least one free-jet shaft is deflected out of the transport path in accordance with the entry of a delivered mail piece.
- a free-jet shaft is used for each inkjet printhead.
- one or two free-injection wells are used, which are coupled to a resilient shaft support with at least one actuating element and are arranged in the transport path below the printheads. Due to the spring action, free-standing wells are brought close to the ink-jet printheads, so that all ink jets are inside the free-fall wells. When interim waiting for mail pieces can be sprayed into the shafts by means of this arrangement.
- the squeeze position is the print position.
- the inkjet printheads remain stationary during printing in the printing position and only the at least one free-jet pit is moved away from the ink-jet printhead. No separate engine is required for this.
- the actuator equipped with a guide cam is actuated and the tray carrier with the free-injection chutes is moved downwardly against a spring force from the mail piece transport path.
- a printing of the mail pieces can be realized.
- the mailpiece pass is monitored by sensors. After the mailpiece pass, the well carrier with the free-injection wells is moved back to the position below the ink jet print heads due to the spring action to allow further free syringes as soon as the aforementioned sensors notify a controller that the mail piece transport path is free of mail pieces. Then, the inkjet printheads are appropriately driven to initiate the free-spraying.
- the advantage is that it allows for immediate free spattering in the print position without having to advance the inkjet printheads.
- Another advantage is that no separate drive is needed to move the tray carrier.
- the resilient shaft support is rotatably mounted on one side on a rotation axis underneath a mailpiece feed table and has at least one free-injection shaft at the other end, which projects through an associated opening in the mailpiece feed table in the z-direction.
- further openings are provided for a free-jet shaft, for a mail piece pressure and support device and for the at least one actuating element of the shaft carrier, which projects in the z-direction through an associated opening.
- a transport device is horizontal and stationary in the ducking device in the z-direction relative to a - not shown - Pressure device arranged, which presses the mailpiece to a conveyor belt of the transport device.
- the conveyor belt acts in the transport area with a predetermined stiction on a part of the surface of the mail piece, which is not printed.
- the conveyor belt is preferably a driven wide tensioned flat belt.
- FIG. 1a is a perspective view of an apparatus for free spraying of an ink jet printhead with the location of a shaft support in the transport path during a free spraying from the top left front shown.
- a flat goods feed table 13 is shown together with two ink cartridges 11, 12 of a printing module in a printing and free-spraying position in a first period in which no flat product is fed.
- a transport device for flat goods or items of mail, not shown, is arranged above the feed table 13 and has been omitted for reasons of clarity.
- One - also not shown - spring-loaded from below opposing pressure device for flat goods or mail pieces is arranged below the feed table.
- the feed table 13 has a base plate 135 and poststromausgangs furnish a large rectangular opening 130 for the aforementioned pressure device.
- the feed table 13 has on the input current side in the feed region slide rails 136, which are integrally formed on the base plate 135 and reduce the sliding friction for supplied flat goods. Between the feed area and the rectangular opening 130, a ramp 137 is arranged, which raises the front edge of the supplied flat goods.
- An elongated ramp-shaped fin 143, 144 is upstream of the shaft support 14 disposed upstream of the shaft support 14 of a respective window opening, in each of which a free-jet shaft 141, 142 is movably arranged.
- the upper shaft edge of each free-jet shaft 141, 142 is equipped with a guide fin 1411, 1421.
- the inkjet printing heads 11.2 and 12.2 of the ink cartridges 11, 12 are arranged in printing position in the z-direction, ie opposite to the direction of gravity directly above the respective pressure window or free-jet shaft 141, 142.
- the bellies 11.1 and 12.1 of the ink cartridges 11, 12 are arranged transversely to the transport direction and opposite to the y-direction.
- a guide wall 139 extending in the transport direction and extending orthogonally in the z direction is formed on the base plate 135, which is widened in the inlet region 138 for flat goods or mail pieces.
- the latter are detected after exceeding the ramp 137 by means of sensors.
- holes 1301, 1302 and 1303 are formed, which are provided for the transmitting diodes of the sensors.
- a carrier plate 15 can accommodate phototransistors or diodes. The transmitting diodes and phototransistors or diodes are part of transmitted light barriers.
- FIG. 1b is a perspective view of an apparatus for free spraying of an ink jet printhead with the position of a shaft support in the transport path shown just before printing from the top left.
- the flat goods feeder table 13 is shown together with a print module in a pressure and spray position and with a flat stock 10 fed in a second period and moved over slides 136 and ramp 137. In this case, moves the flat Good 10 with its front edge from the touch of the guide fins 143, 144, the shaft support down against the spring force, which is applied by the compression spring 146.
- each free-jet pit 141, 142 is provided with a fin 1411, 1421, the flat material subsequently enters the space between the ink-jet printheads of the ink cartridges 11, 12 and the upper chute rim of each free-jet chute 141, 142 without jamming arises.
- FIG. 2 shows a plan view of a feed table on which postal items can be fed from the left, the mail piece (not shown) with its underside to be printed facing a running surface 135 of the feed table 13.
- the tread 135 is disposed in the mail transport direction x after the ramp 137 and has a middle first opening 131 and a middle second opening 132 opposite the ink jet printheads, the first opening 131 being in the y direction, ie the transverse direction, as compared to the second opening 132 is offset to the mail piece transport direction offset by a first distance A.
- the first distance A is slightly less than the entire printhead length a of a 1 ⁇ 2 "HP printhead
- the second aperture 132 is offset from the first aperture 131 in the x-direction, ie offset in the mail transport direction by a second distance B which is more than one
- the print head length a and the print head width b correspond in length and width to the internal dimensions every manhole opening.
- Both of the first and second openings 131 and 132 in the feed table 13 are shaped in a ⁇ -shape (phi-shaped) according to the dimensions of the respective cross-section of the free-jet pit 141, 142 and the fin 1411, 1421.
- the tread 135 further has a relatively large rectangular third opening 130 extending in the mail piece transport direction x, the area of which exceeds the area of the medium second opening 132 by more than an order of magnitude, the second opening 132 being offset in the y direction from the third opening 130. wherein the offset is so minimal that both openings are immediately adjacent to each other adjacent or only separated by a very thin connecting web.
- the third opening 130 allows passage of elements of the resilient against a flat Good or mail piece pushing - not shown - pressure device, which is arranged below the feed table.
- the two first and second openings 131 and 132 are each preceded by an elongated rectangular opening 133, 134 upstream of the post.
- openings 1301, 1302 and 1303 for sensors S1, S2 and S3 are arranged in the feed table.
- FIG. 3 is a perspective view of a shaft support from the top right front.
- Shaft support 14 has two side plates 147, 148 which carry trunnions 1471, 1481 at the first post-upstream end, and two free-shafts 141, 142 are disposed at the second post-downstream end, the latter projecting on a base surface 145 in the z-direction.
- the upper shaft edge of each free-jet shaft 141, 142 is equipped with a guide fin 1411, 1421.
- the fin is designed such that it is not possible for an edge of a flat mail item to get caught on the upper edge of the chute during a mailpiece transport.
- the two free-injection wells 141, 142 are each an elongated ramp-shaped guide fin 143, 144 disposed upstream as post-upstream actuator, so that the shaft support 14 is provided in cooperation of all fins with a curve for postflow upstream incoming mail pieces, which moves the shaft support 14 with the free-injection wells 141, 142 down from the mail piece transport path, without thereby the location of the mail piece is changed.
- the shaft support 14 has an elongated shape, wherein its side plates 147, 148 are integrally formed on the base surface 145 in the middle of the shaft support 14 at 90 ° angled.
- Both side plates 147, 148 are spaced apart by a spacer plate 149.
- the transition from the spacer plate 149 to the base surface 145 is formed in the middle of the shaft support 14 as a step, wherein after mounting the shaft support 14, the base surface 145 is disposed closer to the base plate 135 of the feed table 13, as the spacer plate 149th
- the journals 1471, 1481 of the side plates 147, 148 at the first post upstream end of the shaft support 14 are rotatably mounted on the underside in corresponding brackets of the feed table 13.
- the base surface 145 of the shaft support 14 is thus below the base plate 135 of the feed table 13 approximately parallel to an x / y plane when no flat Good or mail piece is supplied.
- the device for free-spraying an ink-jet printhead is used in microprocessor-controlled printing devices, for example in a postage meter for franking mail items.
- a postage meter is known u.a. from a - not shown - electronic part (meters) and the mail piece transport device with a - not shown - electronic control.
- a keyboard and a display unit of the meter are connected to the electronic part, not shown.
- Fig. 4 a wiring program is shown.
- the electronic control is on the one hand with the transport device and with sensors S1, S2, S3 including the light barriers L1, L2, L3 and on the other hand with the ink jet print heads 11,12 to their control electrically connected.
- the light barriers and the electronic control By means of the light barriers and the electronic control, the feeding of a mail item or flat goods or its absence can be determined in the transport path.
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ink Jet (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Freispritzen eines Tintenstrahldruckkopfes gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung kommt in mikroprozessorgesteuerten Druckgeräten zum Einsatz und ist für Frankiermaschinen und andere Postverarbeitungsgeräte geeignet.The invention relates to a device for the free-spraying of an ink-jet printhead according to the preamble of
Aus dem
Aus dem
Aus dem
Dagegen wird im
Im Marktsegment der Frankiermaschinen mit kleinen bis mittleren Postgutdurchsatz wird eine kompakte Transportvorrichtung für Poststücke benötigt, die durch das Freispritzen aber nicht verschmutzt werden sollen. Beim waagerechten Poststücktransport wird davon ausgegangen, dass mindestens eine Tintenkartusche entgegen der Schwerkraftrichtung über einem Druckfenster in z-Richtung eines kartesischen Koordinatensystems angeordnet ist. Beim Drucken stößt mindestens ein Tintenstrahldruckkopf Tintentropfen entgegengesetzt zur z-Richtung in Schwerkraftrichtung aus, die durch das Druckfenster hindurchfliegen. Das Druckfenster ist am Rand eines Transportbandes in y-Richtung in einem Gehäuseteil angeordnet, wobei das Transportband ein am Rande zu bedruckendes flaches Gut während des Druckens in Transportrichtung x an dem mindestens einen Druckkopf vorbei transportiert.In the market segment of franking machines with small to medium Mailgutdurchsatz a compact transport device for mail pieces is needed, which should not be polluted by the free spraying. When horizontal mail piece transport is assumed that at least one ink cartridge is arranged opposite to the direction of gravity over a printing window in the z-direction of a Cartesian coordinate system. In printing, at least one ink jet printhead ejects ink droplets opposite to the z direction in the direction of gravity, which fly through the printing window. The printing window is arranged on the edge of a conveyor belt in the y-direction in a housing part, wherein the conveyor belt transports a flat good to be printed on the edge during printing in the transport direction x at the at least one print head over.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Freispritzen eines Tintenstrahldruckkopfes zu entwickeln, die einen Freispritzschacht zur Reduzierung der Tintenverschmutzung in einer Frankiermaschine einsetzt.The invention has for its object to develop a device for the free spraying of an ink jet print head, which uses a free-jet slot to reduce the ink contamination in a postage meter.
Die Aufgabe wird mit den Merkmalen der Anordnung nach dem Anspruch 1 gelöst.The object is achieved with the features of the arrangement according to
Die Vorrichtung besteht aus einem Zuführtisch mit einem entgegen einer Federkraft auslenkbaren Schachtträger, der mit mindestens einem Freispritzschacht ausgestattet ist, welcher gegenüber mindestens einem Tintenstrahldruckkopf angeordnet ist. Je Tintenstrahldruckkopf ist ein Freispritzschacht vorgesehen, der an einen federnden Schachtträger angeformt ist, welcher mit mindestens einem Betätigungselement gekoppelt und im Transportpfad unterhalb des mindestens einen Tintenstrahldruckkopfes angeordnet ist, wobei der Zuführtisch eine Öffnung für das Betätigungselement enthält. Der Schachtträger ist derart geformt, dass der mindestens eine Freispritzschacht entsprechend des Einlaufes eines zugeführten Poststückes aus dem Transportpfad herausgelenkt wird.
Je Tintenstrahldruckkopf wird ein Freispritzschacht eingesetzt. Je nach Anzahl der Tintenstrahldruckköpfe werden ein oder zwei Freispritzschächte eingesetzt, die an einen federnden Schachtträger mit mindestens einem Betätigungselement gekoppelt sind und im Transportpfad unterhalb der Druckköpfe angeordnet sind. Durch die Federwirkung werden Freispritzschächte nahe an die Tintenstrahldruckköpfe gebracht, so dass sich alle Tintenstrahlen im Inneren der Freispritzschächte befinden. Beim zwischenzeitlichen Warten auf Poststücke kann mittels dieser Anordnung in die Schächte freigespritzt werden. Die Freispritzposition ist die Druckposition. Die Tintenstrahldruckköpfe bleiben während des Druckens ortfest in der Druckposition stationiert und nur der mindestens eine Freispritzschacht, wird vom Tintenstrahldruckkopf wegbewegt. Dafür ist kein separater Motor erforderlich.
Beim Einlauf eines Poststückes oder eines flachen Gutes, das über den Zuführtisch bewegt wird, wird das Betätigungselement, welches mit einer Leitkurve ausgestattet ist, betätigt und der Schachtträger mit den Freispritzschächten wird nach unten entgegen einer Federkraft aus dem Poststücktransportpfad herausbewegt. Nun kann eine Bedruckung der Poststücke realisiert werden. Der Poststückdurchlauf wird durch Sensoren überwacht. Nach dem Poststückdurchlauf wird der Schachtträger mit den Freispritzschächten aufgrund der Federwirkung zurück in die Position unterhalb der Tintenstrahldruckköpfe bewegt, um ein weiteres Freispritzen zu ermöglichen, sobald die vorgenannten Sensoren an eine Steuerung melden, dass der Poststücktransportpfad frei von Poststücken ist. Dann erfolgt ein entsprechendes Ansteuern der Tintenstrahldruckköpfe, um das Freispritzen auszulösen.
Der Vorteil besteht darin, dass ein sofortiges Freispritzen in Druckposition ermöglicht wird, ohne dass die Tintenstrahldruckköpfe zuvor bewegt werden müssen. Ein weiterer Vorteil besteht darin, dass kein separater Antrieb benötigt wird, um den Schachtträger zu bewegen.
Der federnde Schachtträger ist einseitig auf einer Drehachse unterhalb eines Poststückzuführtisches drehbeweglich gelagert und weist am anderen Ende mindestens einen Freispritzschacht auf, der durch eine zugehörige Öffnung im Poststückzuführtisch in z-Richtung aufragt. Im Poststückzuführtisch sind weitere Öffnungen für einen Freispritzschacht, für eine Poststückandruck- und Stützvorrichtung und für das mindestens eine Betätigungselement des Schachtträgers vorgesehen, welche in z-Richtung durch jeweils eine zugehörige Öffnung aufragen.
Eine Transportvorrichtung ist waagerecht und ortsfest in der Duckvorrichtung in z-Richtung gegenüber einer - nicht gezeigten - Andruckvorrichtung angeordnet, welche das Poststück an ein Transportband der Transportvorrichtung andrückt. Das Transportband wirkt im Transportbereich mit einer vorbestimmten Haftreibung auf einen Teil der Oberfläche des Poststückes, welcher nicht bedruckt wird. Das Transportband ist vorzugsweise ein angetriebener breiter gespannter Flachriemen.The device consists of a feed table with a counter to a spring force deflectable shaft support, which is equipped with at least one free-jet slot, which is arranged opposite at least one ink-jet printhead. For each inkjet printhead, a free-jet slot is provided, which is formed on a resilient shaft support, which is coupled to at least one actuating element and arranged in the transport path below the at least one inkjet printhead, wherein the feed table includes an opening for the actuating element. The shaft carrier is shaped in such a way that the at least one free-jet shaft is deflected out of the transport path in accordance with the entry of a delivered mail piece.
For each inkjet printhead, a free-jet shaft is used. Depending on the number of inkjet printheads one or two free-injection wells are used, which are coupled to a resilient shaft support with at least one actuating element and are arranged in the transport path below the printheads. Due to the spring action, free-standing wells are brought close to the ink-jet printheads, so that all ink jets are inside the free-fall wells. When interim waiting for mail pieces can be sprayed into the shafts by means of this arrangement. The squeeze position is the print position. The inkjet printheads remain stationary during printing in the printing position and only the at least one free-jet pit is moved away from the ink-jet printhead. No separate engine is required for this.
Upon entry of a mail item or a flat item moved over the feed table, the actuator equipped with a guide cam is actuated and the tray carrier with the free-injection chutes is moved downwardly against a spring force from the mail piece transport path. Now a printing of the mail pieces can be realized. The mailpiece pass is monitored by sensors. After the mailpiece pass, the well carrier with the free-injection wells is moved back to the position below the ink jet print heads due to the spring action to allow further free syringes as soon as the aforementioned sensors notify a controller that the mail piece transport path is free of mail pieces. Then, the inkjet printheads are appropriately driven to initiate the free-spraying.
The advantage is that it allows for immediate free spattering in the print position without having to advance the inkjet printheads. Another advantage is that no separate drive is needed to move the tray carrier.
The resilient shaft support is rotatably mounted on one side on a rotation axis underneath a mailpiece feed table and has at least one free-injection shaft at the other end, which projects through an associated opening in the mailpiece feed table in the z-direction. In the mail piece feed table, further openings are provided for a free-jet shaft, for a mail piece pressure and support device and for the at least one actuating element of the shaft carrier, which projects in the z-direction through an associated opening.
A transport device is horizontal and stationary in the ducking device in the z-direction relative to a - not shown - Pressure device arranged, which presses the mailpiece to a conveyor belt of the transport device. The conveyor belt acts in the transport area with a predetermined stiction on a part of the surface of the mail piece, which is not printed. The conveyor belt is preferably a driven wide tensioned flat belt.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet bzw. werden nachstehend zusammen mit der Beschreibung der bevorzugten Ausführung der Erfindung anhand der Figuren näher dargestellt. Es zeigen:
- Figur 1a,
- Perspektivische Ansicht einer Vorrichtung zum Freispritzen eines Tintenstrahldruckkopfes mit der Lage eines Schachtträgers im Transportpfad während eines Freispritzens,
- Figur 1b,
- Perspektivische Ansicht einer Vorrichtung zum Freispritzen eines Tintenstrahldruckkopfes mit der Lage eines Schachtträgers im Transportpfad kurz vor einem Drucken,
- Figur 2,
- Draufsicht auf den Zuführtisch,
- Figur 3,
- Perspektivische Ansicht auf einen Schachtträger von vorn oben rechts,
- Figur 4,
- ein Verdrahtungsdiagramm.
- FIG. 1a,
- Perspective view of a device for the free spraying of an inkjet printhead with the position of a shaft carrier in the transport path during a free spraying,
- FIG. 1b,
- Perspective view of a device for spraying an inkjet printhead with the position of a shaft carrier in the transport path just before printing,
- FIG. 2,
- Top view of the feed table,
- FIG. 3,
- Perspective view of a shaft carrier from the top front right,
- FIG. 4,
- a wiring diagram.
In der
In der
In der
Die Lauffläche 135 hat weiterhin eine sich in Poststücktransportrichtung x erstreckende relativ große rechteckförmige dritte Öffnung 130, deren Fläche die Fläche der mittelgroßen zweiten Öffnung 132 um mehr als eine Größenordnung übertrifft, wobei die zweite Öffnung 132 in y-Richtung zur dritten Öffnung 130 versetzt ist, wobei der Versatz so minimal ist, dass beide Öffnungen unmittelbar einander angrenzend benachbart sind oder nur durch einen sehr dünnen Verbindungssteg getrennt sind. Die dritte Öffnung 130 gestattet ein Hindurchtreten von Elementen der federnd gegen ein flaches Gut bzw. Poststück drückenden - nicht dargestellten - Andruckvorrichtung, welche unterhalb des Zuführtisches angeordnet ist. Den beiden ersten und zweiten Öffnungen 131 und 132 sind jeweils eine langgestreckte rechteckförmige Öffnung 133, 134 poststromaufwärts vorgelagert. Im Zuführtisch sind außerdem Öffnungen 1301, 1302 und 1303 für Sensoren S1, S2 und S3 angeordnet.In the
The
In der
Die Lagerzapfen 1471, 1481 der Seitenplatten 147, 148 am ersten poststromaufwärts angeordneten Ende des Schachtträgers 14 werden an der Unterseite in entsprechenden Halterungen des Zuführtisches 13 drehbeweglich montiert. Die Basisfläche 145 des Schachtträgers 14 liegt damit unter der Grundplatte 135 des Zuführtisches 13 annähernd parallel zu einer x/y-Ebene, wenn kein flaches Gut bzw. Poststück zugeführt wird.In the
The
Die Vorrichtung zum Freispritzen eines Tintenstrahldruckkopfes wird in mikroprozessorgesteuerten Druckgeräten, zum Beispiel in einer Frankiermaschine zum Frankieren von Poststücken eingesetzt. Eine Frankiermaschine besteht bekanntlich u.a. aus einem - nicht gezeigten - elektronischen Teil (Meter) und der Poststücktransportvorrichtung mit einer - nicht gezeigten - elektronischer Steuerung. Eine Tastatur und eine Anzeigeeinheit des Meters sind mit dem elektronischen Teil - in nicht gezeigter Weise - verbunden.The device for free-spraying an ink-jet printhead is used in microprocessor-controlled printing devices, for example in a postage meter for franking mail items. A postage meter is known u.a. from a - not shown - electronic part (meters) and the mail piece transport device with a - not shown - electronic control. A keyboard and a display unit of the meter are connected to the electronic part, not shown.
In
Die Erfindung ist nicht auf die vorliegenden Ausführungsform an sich beschränkt. Vielmehr ist eine Anzahl von Geräten im Rahmen der Ansprüche denkbar, die eingesetzt werden und die vom gleichen Grundgedanken der Erfindung ausgehend, von den anliegenden Ansprüchen umfaßt werden.The invention is not limited to the present embodiment per se. Rather, a number of devices within the scope of the claims is conceivable, which are used and which are based on the same basic idea of the invention, from the appended claims.
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007060735A DE102007060735B4 (en) | 2007-12-17 | 2007-12-17 | Device for the free spraying of an inkjet printhead |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2072263A2 true EP2072263A2 (en) | 2009-06-24 |
EP2072263A3 EP2072263A3 (en) | 2009-10-14 |
EP2072263B1 EP2072263B1 (en) | 2012-08-08 |
Family
ID=40514077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08019553A Active EP2072263B1 (en) | 2007-12-17 | 2008-11-07 | Combination of an inkjet print head and a device for clearing an inkjet print head by ejecting |
Country Status (3)
Country | Link |
---|---|
US (1) | US8091979B2 (en) |
EP (1) | EP2072263B1 (en) |
DE (1) | DE102007060735B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010015351U1 (en) | 2010-11-11 | 2011-02-03 | Francotyp-Postalia Gmbh | Device for lowering, positioning and raising printing elements of a printing device |
DE202010015354U1 (en) | 2010-11-11 | 2011-02-10 | Francotyp-Postalia Gmbh | Modular printer device with a removable box-shaped assembly |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5761495B2 (en) * | 2011-02-28 | 2015-08-12 | 株式会社ミマキエンジニアリング | Cleaning device and liquid ejection device provided with the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4000416C2 (en) | 1990-01-09 | 1993-12-02 | Siemens Ag | Method and device for automatic operational security of an ink printing device |
US5806994A (en) | 1997-10-15 | 1998-09-15 | Pitney Bowes Inc. | Mailing machine having ink jet printing and maintenance system |
US6390577B1 (en) | 1994-08-08 | 2002-05-21 | Neopost Industrie | Franking machine incorporating an inkjet print head |
DE102005052151B3 (en) | 2005-11-02 | 2007-05-31 | Francotyp-Postalia Gmbh | Device for free-spraying an ink jet print head |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5813326A (en) * | 1994-12-22 | 1998-09-29 | Pitney Bowes Inc. | Mailing machine utilizing ink jet printer |
FR2768078B1 (en) * | 1997-09-10 | 1999-11-26 | Neopost Ind | MAINTENANCE STATION FOR INK JET PRINTING MACHINE |
US6726306B2 (en) * | 2002-07-10 | 2004-04-27 | Hewlett-Packard Development Company, L.P. | Print head shutter |
KR100544205B1 (en) * | 2004-07-01 | 2006-01-23 | 삼성전자주식회사 | Inkjet printer having movable guide |
KR100717062B1 (en) * | 2005-12-28 | 2007-05-10 | 삼성전자주식회사 | Inkjet image forming apparatus |
-
2007
- 2007-12-17 DE DE102007060735A patent/DE102007060735B4/en not_active Expired - Fee Related
-
2008
- 2008-11-07 EP EP08019553A patent/EP2072263B1/en active Active
- 2008-12-15 US US12/334,976 patent/US8091979B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4000416C2 (en) | 1990-01-09 | 1993-12-02 | Siemens Ag | Method and device for automatic operational security of an ink printing device |
US6390577B1 (en) | 1994-08-08 | 2002-05-21 | Neopost Industrie | Franking machine incorporating an inkjet print head |
US5806994A (en) | 1997-10-15 | 1998-09-15 | Pitney Bowes Inc. | Mailing machine having ink jet printing and maintenance system |
DE102005052151B3 (en) | 2005-11-02 | 2007-05-31 | Francotyp-Postalia Gmbh | Device for free-spraying an ink jet print head |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010015351U1 (en) | 2010-11-11 | 2011-02-03 | Francotyp-Postalia Gmbh | Device for lowering, positioning and raising printing elements of a printing device |
DE202010015354U1 (en) | 2010-11-11 | 2011-02-10 | Francotyp-Postalia Gmbh | Modular printer device with a removable box-shaped assembly |
EP2452822A1 (en) | 2010-11-11 | 2012-05-16 | Francotyp-Postalia GmbH | Device for sinking, positioning and lifting pressure elements of a printer |
EP2452824A1 (en) | 2010-11-11 | 2012-05-16 | Francotyp-Postalia GmbH | Modular printer with a removable box-shaped component |
Also Published As
Publication number | Publication date |
---|---|
US8091979B2 (en) | 2012-01-10 |
EP2072263B1 (en) | 2012-08-08 |
US20090153637A1 (en) | 2009-06-18 |
DE102007060735B4 (en) | 2011-11-03 |
EP2072263A3 (en) | 2009-10-14 |
DE102007060735A1 (en) | 2009-06-25 |
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