EP0697634B1 - Dispositif d'inversion d'un substrat d'enregistrement en forme de bande - Google Patents
Dispositif d'inversion d'un substrat d'enregistrement en forme de bande Download PDFInfo
- Publication number
- EP0697634B1 EP0697634B1 EP94112973A EP94112973A EP0697634B1 EP 0697634 B1 EP0697634 B1 EP 0697634B1 EP 94112973 A EP94112973 A EP 94112973A EP 94112973 A EP94112973 A EP 94112973A EP 0697634 B1 EP0697634 B1 EP 0697634B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recording medium
- deflecting
- channel
- paper
- reversing
- 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
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6517—Apparatus for continuous web copy material of plain paper, e.g. supply rolls; Roll holders therefor
- G03G15/6526—Computer form folded [CFF] continuous web, e.g. having sprocket holes or perforations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/32—Arrangements for turning or reversing webs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
- G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
- G03G15/232—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member
- G03G15/234—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters
- G03G15/237—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters the image receiving member being in form of a continuous web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/52—Auxiliary process performed during handling process for starting
- B65H2301/522—Threading web into machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
- B65H2406/111—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along a curved path, e.g. fluidised turning bar
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
- G03G2215/00417—Post-fixing device
- G03G2215/0043—Refeeding path
- G03G2215/00438—Inverter of refeeding path
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00443—Copy medium
- G03G2215/00451—Paper
- G03G2215/00455—Continuous web, i.e. roll
- G03G2215/00459—Fan fold, e.g. CFF, normally perforated
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00535—Stable handling of copy medium
- G03G2215/00556—Control of copy medium feeding
- G03G2215/00586—Control of copy medium feeding duplex mode
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00919—Special copy medium handling apparatus
- G03G2215/00924—Special copy medium handling apparatus two or more parallel feed paths
Definitions
- the invention relates to a turning device for tape-shaped recording media arranged within an electrographic printing device.
- EP-B1-01 54 695 To produce multicolor and reverse side printing with continuous-paper electrographic printing devices, it is known from EP-B1-01 54 695 to operate two continuous paper printers in succession, the paper printed in the first printer being turned over and subsequently printed in the second printer on the second side .
- the aim of the invention is therefore to provide a turning device for tape-shaped recording media which enables automatic threading of the recording media.
- Another object of the invention is to design the turning device in such a way that it can be arranged in a user-friendly manner in an electrographic printing device with which printing on one and both sides of a tape-shaped recording medium is possible.
- Deflection elements arranged in the form of the letter W in conjunction with a motor-driven rotating gripping element enable a compact and reliable construction of a turning device with automatic threading of the record carrier.
- the turning device can be used between two separate devices as well as integrated in one device. Due to its compact design as a self-supporting, slidably suspended structural unit, it is particularly suitable for integrated arrangement in multifunctional electrographic printing systems which, due to their structure, can print on continuous paper both on one side and on both sides, in one color or multi-color.
- the transfer printing station and the fixing station have a usable width of at least twice the bandwidth of the recording medium, with each of these units being run through twice in duplex mode by the recording medium, in parallel next to one another.
- the turning device is arranged downstream of the fixing station and can be coupled to the transfer station via the paper outlet channel. The turning device thus has two tasks: on the one hand it rotates the recording medium by 180 °, on the other hand it displaces the recording medium running out of the fusing station laterally by a recording medium width so that the subsequent transfer printing station and again the fusing station can be run through in parallel.
- deflecting elements in the form of hollow rods, which are connected to one another, enables integrated air guidance in order to produce a friction-reducing air cushion in the area of the sliding surfaces of the deflecting elements.
- the paper guide surfaces are designed to be pivotable, in particular in the region of the deflection elements.
- a conveyor belt which is guided around the outer turning elements and has a friction lining on its inside as the threading element.
- the friction lining is positioned between the inclined deflection elements in such a way that it is out of engagement with the recording medium.
- the conveyor belt is guided at a distance around their sliding surfaces, whereas the recording medium slides along the sliding surfaces. The position of the record carrier relative to the friction lining thus changes prematurely. It is thus possible, at the end of the threading process, to push the beginning of the recording medium far beyond the rear end of the friction lining into the paper exit channel, where it is gripped by paper transport elements.
- FIG. 1 shows a schematic illustration of an electrographic printing device for printing on tape-shaped recording media in duplex mode
- FIG. 2 shows a schematic sectional illustration of the same electrographic printing device
- FIG. 3 shows a schematic illustration of a turning device arranged in the electrographic printing device
- FIG. 4 shows a schematic illustration of the turning device arranged in the electrographic printing device in a side view
- FIG. 5 shows a schematic sectional illustration of the paper guide in the turning device along the section line C-C of FIG. 3,
- FIG. 6 shows a schematic sectional illustration of the paper guide in the turning device along the section line B-B of FIG. 3,
- FIG. 7 shows a schematic illustration of the paper guide in the area of the lateral reversing devices
- FIG. 8 to 10 are schematic sectional representations of the threading process of the recording medium into the turning device along the section line A-A of FIG. 3,
- FIG. 11 to 15 are schematic representations of the threading process of the recording medium into the turning device
- FIG. 16 shows a block diagram of a control arrangement for the turning device
- Figure 17 is a schematic representation of the turning device in the service position
- Figure 18 is a schematic representation of the turning device in the operating position.
- An electrographic printing device for printing on tape-shaped recording media 10 of different bandwidth contains an electromotive-driven photoconductor drum as intermediate media 11.
- a band-shaped intermediate carrier e.g. use an OPC tape or a magneto-styli arrangement, e.g. is described in EP-B1-0 191 521.
- the various units for the electrophotographic process are grouped around the intermediate carrier 11.
- a charging device 12 in the form of a charging corotron for charging the intermediate carrier 11; a character generator 13 with a light-emitting diode comb for character-dependent exposure of the intermediate carrier 11, which extends over the entire usable width of the intermediate carrier 11; a developer station 14 for coloring the character-dependent charge image on the intermediate carrier 11 with the aid of a one- or two-component developer mixture; a transfer printing station 15, which extends over the width of the intermediate carrier 11 and with which the toner images are transferred to the recording medium 10.
- a cleaning station 16 is provided with a cleaning brush integrated therein with the associated suction device and a discharge device 17.
- the intermediate carrier 11 is driven by an electric motor and moved in the direction of the arrow in printing operation.
- the printing device contains a fixing station 18 which is arranged downstream of the transfer printing station 15 in the transport direction of the recording medium and which is designed as a thermal printing fixing station, with a heated fixing roller 19 Associated pressure roller 20, and guide rollers 21 arranged downstream of the fixing station, which serve, among other things, as output elements for a stacking device 22 for the recording medium 10.
- a fixing station 18 which is arranged downstream of the transfer printing station 15 in the transport direction of the recording medium and which is designed as a thermal printing fixing station, with a heated fixing roller 19 Associated pressure roller 20, and guide rollers 21 arranged downstream of the fixing station, which serve, among other things, as output elements for a stacking device 22 for the recording medium 10.
- the fixing station shown other fixing stations are also possible, for example with a heated or unheated inlet saddle or a cold fixing station.
- the tape-shaped recording medium 10 is made up, for example, as prefolded, continuous paper provided with edge perforations and is fed from a storage area 23 to the transfer station via feed rollers 24.
- the transport of the record carrier is preferably carried out via a transport device 25 assigned to the transfer printing station 15 in the form of conveyor belts provided with pins which, guided by drive shafts 27, engage in the perforations on the edge of the record carrier 10.
- a transport-hole-free recording medium an adapted transport device familiar to the person skilled in the art is to be provided which e.g. transported by friction, controlled by a control arrangement scanning synchronization marks.
- a turning device 28 is arranged in the housing area of the printing device between the storage area 23 and the fixing station 18, the function of which will be explained later and via which the recording medium is returned from the fixing station 18 to the transfer printing station 15.
- the printing device is controlled by a printer controller, which is shown schematically here, with a central unit CPU, a page memory SP, which is subdivided into memory areas depending on the page, and a data control unit DC. All control units are connected to each other and to the units of the printing device via a BUS system.
- the electrographic printing device is suitable for printing on recording media with different bandwidths.
- the intermediate carrier 11 (photoconductor drum) has a usable width which corresponds to the largest possible recording medium width (e.g. a format DIN A3 landscape). This width corresponds to twice the A4 bandwidth. It is thus possible to arrange two A4 recording medium widths alongside one another in the area of the transfer printing station 15.
- the fixing station 18 and the other electrophotographic units, such as developer station 14, character generator 13, cleaning station 16, are designed in accordance with this usable width. Adapting the width of the character generator 13 to different recording medium widths does not require any mechanical change to the character generator if, as in this case, an LED character generator is used with a large number of LEDs arranged in rows. An adaptation to the recording medium width used is carried out electronically by control.
- the transport device can be designed to be width-adjustable. This can e.g. can be achieved in that the drive wheels, which carry the conveyor belts (nubbed belts) engaging in the perforations on the edge of the record carrier, are displaceably mounted on polygonal shafts.
- these transport elements do not interfere with operation with only one wide recording medium, they can be arranged such that they can be plugged in and plugged in or swiveled out, or it is possible to provide the drive wheels 27 of the transport device 25 with retractable pins and knobs.
- the turning device 28 arranged in a return channel for narrow record carriers from the fixing station 18 to the transfer printing station 15 serves for rotating the record carrier from the front to the back. It is designed to be switchable depending on the operating mode and has an automatic threading device for the recording medium.
- the narrow, for example A4-wide, recording medium is fed from the storage area 23 via the feed rollers 24 to the transfer station 15 and printed on its upper side with a front-side toner image.
- the front of the record carrier 10 is identified by solid transport arrows, the underside by dashed transport arrows.
- the recording medium with the front-side toner image is then fed to the fixing station 18 and the front-side toner image is fixed.
- the recording medium is transported further to the turning device 28, the deflection contour of which is positioned in a turning position.
- the record carrier is turned with respect to its front and back and fed again via the feed rollers 24 to the transfer printing device 15 in such a way that its back can be provided with a back toner image. Then the recording medium is again fed to the fixing station 18 and the back toner image is fixed and then the recording media printed on both sides are stored in the stacking device 22.
- the page memory SP contains storage areas VS for storing the front side image data and storage areas RS for storing the back side image data.
- the data preparation takes place via the data control device DC, the data starting from a data source (HOST), e.g. can be supplied to an external data memory via an interface of the data control device DC.
- HOST data source
- the data of the individual pages to be printed are stored in the page memory SP, separately to the front VS and back RS in the corresponding memory areas.
- the call of the data is then time-controlled so that the desired front-back assignment of the toner images on the recording medium is achieved.
- the turning device 28 (FIG. 3) essentially contains four deflection elements arranged in the manner of the letter W, via which the recording medium 10 is guided starting from a paper inlet channel 30 to a paper outlet channel 31. Paper inlet channel 30 and paper outlet channel 31 are arranged side by side in one plane.
- a recording medium 10 fed via the paper inlet channel 30 is first guided over a first oblique deflection device 32 which deflects the recording medium laterally.
- This consists of a hollow deflecting rod 33 or roller arranged at approximately 45 ° to the paper running direction.
- the first inclined deflection device 32 in the paper transport direction is followed by a first reversing device 34 with a Deflection element 35 in the form of a hollow profile for returning the recording medium 10 behind the paper channels to the area of a second reversing device 36 which is arranged approximately parallel to the first reversing device 34 and reverses the recording medium 10 again.
- This likewise has a deflection element 35 in the form of a hollow profile.
- Downstream of the second reversing device 36 is a second oblique deflecting device 37 deflecting the recording medium 10 into the paper outlet channel 31, with a hollow deflecting rod 33 or roller arranged at approximately 45 ° to the paper running direction.
- Deflection rods 33 and deflection elements 35 have wear-resistant polished surfaces as deflection surfaces 38 (FIGS. 5, 6, 7) which serve as sliding surfaces for the recording medium 10 and which are encompassed at a distance from guide surfaces 40 forming a deflection channel 39.
- the guide surfaces 40 assigned to the deflecting rods 33 of the oblique deflecting devices 32 and 37 are part of hinged flaps 41 made of hollow profiles. They are shown in FIG. 3 in the operating position (solid line) and in the pivoting position (broken lines).
- the guide surfaces 40 of the deflection elements 35 consist of spring plates 42, which are arranged on the front and rear, swiveling housing flaps 43 of the turning device. The housing flaps 43 are shown in the swiveled position in FIG. 4 with broken lines.
- the deflection surfaces 38 In order to reduce the friction between the sliding surfaces and the recording medium in the region of the deflection points, the deflection surfaces 38 have air outlet openings 44 (FIGS. 5, 6, 7), via which an air cushion between the recording medium and the deflection surfaces can be generated, particularly when threading.
- the cavities of deflecting rods 33 and deflecting elements 35 are connected to one another and serve as air supply channels.
- a connection module 45 arranged in the receiving area for the turning device in the device is provided with the right-hand deflection element 35 for controlled feeding Blown air can be coupled via a blower 57. It also contains a plug for the electrical connection.
- the turning device further contains a threading device for the recording medium 10 with a motor-driven gripping element which is guided around the reversing devices 34, 36 and has gripping means for the beginning of the recording medium, the beginning of the recording medium being detected in the area of the first oblique deflection device 32 for threading into the turning device and via the reversing devices 34 , 36 and the second inclined deflection device 37 is transported into the area of the paper outlet channel 31.
- the gripping element consists of an edge-perforated conveyor belt 46 which is guided about the reversing devices 34, 36 via guide axes 47. It is driven by a motor 48.
- a friction lining 49 (friction element) made of foam or silicone is arranged on the inside of the conveyor belt 46. Its length is dimensioned such that in the operating state of the turning device shown in FIG. 3, in which the friction element 49 is located between the oblique deflection devices 32, 37, the friction element 49 is out of engagement with the recording medium 10.
- a recording medium circulation channel 50 with associated switches 51 for introducing and discharging the recording medium 10 in the area of the oblique deflection devices 32, 37.
- this results in a continuous guide channel for the recording medium 10 together with the deflection channels 39 the deflection elements 33, 35 from the paper inlet channel 30 to the paper outlet channel 31.
- the conveyor belt 46 is immersed in the channel sections of the recording medium circulation channel lying between the reversing devices 34, 36 and is guided there.
- the channel walls facing the friction lining 49 have roller elements 52 (FIGS. 3, 9) in the region of the conveyor belt 46 Reduction of the friction between the recording medium 10 and the wall surface.
- the recording medium 10 is clamped between the roller elements 52 and the friction lining 49 and thus safely transported through the friction lining 49.
- the conveyor belt 46 is guided over a transport path (FIG. 7) which runs outside the deflection channel 39 as part of the recording medium circulation channel 50 and which is longer than the transport path of the beginning of the recording medium through the deflection channel 39.
- Paper transport elements 53 can consist of pivotable friction wheels or impact elements or tractors with transport slats.
- an additional motor-driven recording medium transport device in the form of paper transport rollers 54 is arranged downstream of the second inclined deflection device 37, which serves to feed the recording medium 10 to the return channel to the transfer printing station.
- the turning device is controlled via a microprocessor-controlled threading control arrangement shown in FIG. 16, which can be part of the device control. It consists of the actual central control ZS containing a microprocessor. On the input side, this is connected to an optical sensor S2, which is arranged below the first oblique deflection device 32 and which records the start of the recording medium in the region of the first oblique deflection device 32 scans and with a sensor S1 arranged in the region of the first reversing device 34, which can be designed as a Hall sensor and which scans the position of the friction element 49 (friction lining) via a magnetic element.
- a microprocessor-controlled threading control arrangement shown in FIG. 16, which can be part of the device control. It consists of the actual central control ZS containing a microprocessor. On the input side, this is connected to an optical sensor S2, which is arranged below the first oblique deflection device 32 and which records the start of the recording medium in the region of the first oblique
- the threading control arrangement is coupled to the blower for generating the blown air 56, the drives for the paper transport elements 53 and the paper transport rollers 54 and the conveyor belt drive 48.
- the threading control arrangement detects the start of the recording medium in the area of the first inclined deflection device 32 via the sensor S2, activates the conveyor belt drive 48 as a function thereof, and positions the friction lining 49 in a rest position depending on the position signal of the sensor S1 after threading the beginning of the recording medium into the paper outlet channel 31 in which it is out of engagement with the recording medium 10.
- the turning device is designed as an independent, torsionally rigid structural unit and is mounted on telescopic rails 55 such that it can be pulled out in the device (FIGS. 17, 18). This means that all deflection elements are freely accessible in the event of paper flow disruptions and servicing.
- the blower for generating the blown air 56 the drives for the paper transport elements 53 and the paper transport rollers 54 are activated via the threading control arrangement ZS.
- the friction lining 49 is in the rest position shown in FIGS. 8 and 11 between the inclined deflecting elements 32, 37.
- the beginning of the tape entering through the paper inlet duct 30 is deflected in the deflecting duct 39 of the first inclined deflecting device 32 and detected by the sensor S2.
- the conveyor belt 46 is started. It detects the beginning of the belt (FIG. 12) via the friction lining 49 and transports it around the first reversing device 34 ( Figures 9, 12).
- the beginning of the recording medium leads the friction lining 49 somewhat.
- the paper inlet channel 30 of the turning device 28 is connected to a recording medium output channel 29 (FIG. 2) assigned to the fixing station 18, which has a usable width of at least twice the bandwidth of the recording medium 10, via paper transport elements 57.
- a recording medium output channel 29 (FIG. 2) assigned to the fixing station 18, which has a usable width of at least twice the bandwidth of the recording medium 10, via paper transport elements 57.
- the developer station 14 may have two separate developer areas 14/1, 14/2 for e.g. red and black toners.
- the gripping element with the gripping means consists of a conveyor belt 46 with a friction lining 49 arranged thereon. It is also possible to use a mechanical clamping element or a friction piece which is moved by means of traction means. Instead of the start-stop operation of the conveyor belt or the friction lining, the conveyor belt can also be moved continuously around the reversing devices in accordance with the recording medium transport speed, the friction lining remaining in constant engagement with the recording medium.
- the function of the paper inlet channel can also be carried out by the paper outlet channel and vice versa, that is to say the turning device can be operated in two transport directions.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Handling Of Cut Paper (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Registering Or Overturning Sheets (AREA)
Claims (16)
- Dispositif d'inversion d'un substrat d'enregistrement (10) en forme de bande, comportant- un canal d'entrée de papier (30) et un canal de sortie de papier (31) disposés l'un à côté de l'autre;- un premier dispositif d'inversion oblique (32) inversant latéralement le substrat d'enregistrement (10) amené par l'intermédiaire du canal d'entrée de papier (30);
caractérisé par:- un premier dispositif de renversement (34) monté en aval du premier dispositif d'inversion oblique (32) suivant le sens d'entraînement du papier pour reconduire le substrat d'enregistrement (10) derrière les canaux de papier jusqu'au niveau d'un deuxième dispositif de renversement (36) disposé de manière sensiblement parallèle au premier dispositif de renversement (34) et renversant de nouveau le substrat d'enregistrement (10):- un deuxième dispositif d'inversion oblique (37) monté en aval du deuxième dispositif de renversement (36) et inversant le substrat d'enregistrement (10) dans le canal de sortie de papier (31), et- un dispositif d'insertion du substrat d'enregistrement (10), comportant un élément de préhension (46) entraîné par moteur, guidé autour des dispositifs de renversement (34, 36), qui comporte des moyens de préhension (49) pour le début de substrat d'enregistrement, le début de substrat d'enregistrement, en vue de l'insertion dans le dispositif d'inversion, étant saisi au niveau du premier dispositif d'inversion oblique (32) et transporté, par l'intermédiaire des dispositifs de renversement (34, 36) et le deuxième dispositif d'inversion oblique (37), jusqu'au niveau du canal de sortie de papier (31). - Dispositif d'inversion selon la revendication 1, comportant un élément de préhension pourvu d'un élément de friction (49).
- Dispositif d'inversion selon la revendication 2, comportant une bande transporteuse (46) enroulant les dispositifs de renversement, sur la face interne de laquelle est disposé l'élément de friction (49).
- Dispositif d'inversion selon l'une des revendications 2 ou 3, selon lequel la longueur de l'élément de friction est calculée de façon telle que dans une position de fonctionnement, dans laquelle l'élément de friction (49) se trouve entre les dispositifs d'inversion obliques (32, 37), l'élément de friction (49) est hors prise avec le substrat d'enregistrement (10).
- Dispositif d'inversion selon l'une des revendications 1 à 4, selon lequel les dispositifs d'inversion obliques et/ou les dispositifs de renversement comportent des surfaces d'inversion formées comme surfaces de glissement (38) qui sont entourées de surfaces de guidage (40, 41, 42) à une distance formant un canal d'inversion (39).
- Dispositif d'inversion selon la revendication 5, comportant des surfaces de guidage (40, 41, 42) réalisées de manière pivotante.
- Dispositif d'inversion selon l'une des revendication 5 ou 6, comportant des ouvertures de sortie d'air (44) disposées au niveau des surfaces d'inversion (38), qui sont reliées à un système d'alimentation en air (56).
- Dispositif d'inversion selon la revendication 7, selon lequel les dispositifs d'inversion obliques (32, 37) et/ou les dispositifs de renversement (34, 36) comportent comme éléments d'inversion des corps creux munis de surfaces d'inversion, susceptibles d'être reliés entre eux en vue d'une alimentation en air commune.
- Dispositif d'inversion selon l'une des revendications 1 à 8, comportant un canal périphérique de substrat d'enregistrement (50) guidé autour des dispositifs de renversement (34, 36), équipé d'aiguilles (51) attribuées à l'entrée et à la sortie du substrat d'enregistrement au niveau des dispositifs d'inversion obliques (32, 37), l'élément de préhension (46) étant guidé au moins dans les tronçons de canal du canal périphérique de substrat d'enregistrement (50) situés entre les dispositifs de renversement (34, 36).
- Dispositif d'inversion selon l'une des revendications 1 à 9, selon lequel l'élément de préhension (46, 49) est guidé autour des dispositifs de renversement (34, 36) sur un parcours de transport qui est plus long que le parcours de transport du début de substrat d'enregistrement, de manière à ce que le début de substrat d'enregistrement, lorsqu'il tourne autour des dispositifs de renversement (34, 36), devance l'élément de préhension (46, 49).
- Dispositif d'inversion selon l'une des revendications 1 à 10, comportant des éléments d'entraînement de papier (53) disposés dans le canal d'entrée de papier (30) et/ou dans le canal de sortie de papier (31), amenant le début de substrat d'enregistrement au premier dispositif d'inversion oblique ou le recevant du deuxième dispositif de déviation oblique.
- Dispositif d'inversion selon la revendication 11, comportant un dispositif d'entraînement de substrat d'enregistrement (54) additionnel, disposé en aval du deuxième dispositif d'inversion oblique (37).
- Dispositif d'inversion selon l'une des revendications 1 à 12, comportant- un premier palpeur (S1) détectant la position de l'élément de préhension (46, 49);- un deuxième palpeur (S2) balayant le substrat d'enregistrement (10) au niveau du premier dispositif d'inversion oblique (32), et- un dispositif de commande d'insertion (ZS) couplé aux palpeurs (S1, S2) et aux moyens d'entraînement du substrat d'enregistrement, qui, en vue de l'insertion du début de substrat d'enregistrement par l'intermédiaire du deuxième palpeur (S2), saisit le début de substrat d'enregistrement au niveau du premier dispositif d'inversion oblique (32), active le dispositif d'insertion en fonction de ces éléments et positionne l'élément de préhension (46, 49), après l'insertion du début de substrat d'enregistrement jusque dans le canal de sortie de papier (31), dans une position de repos, dans laquelle il se trouve hors prise avec le substrat d'enregistrement (10).
- Dispositif d'inversion selon l'une des revendications 1 à 13, conçu comme unité de montage autonome et fixé de manière amovible dans une imprimante électrographique par l'intermédiaire d'un dispositif coulissant (55).
- Dispositif d'impression électrographique destiné à l'impression de substrats d'enregistrement (10) en forme de bande, comportant- un dispositif d'inversion selon l'une des revendications 1 à 14;- un substrat intermédiaire (11) comportant des groupes (12, 13, 14, 16) associés pour générer des images de toner sur le substrat intermédiaire (11);- une station de transfert (15) affectée au substrat intermédiaire (11), recevant le substrat d'enregistrement (10);- une station de fixation (18) disposée en aval de la station de transfert (15) suivant le sens d'entraînement du substrat d'enregistrement, destinée à fixer les images de toner sur le substrat d'enregistrement, le substrat intermédiaire (11), la station de transfert (15) et la station de fixation (18) ayant une largeur utile d'au moins deux fois la largeur de bande du substrat d'enregistrement (10), et le dispositif d'inversion (28) étant disposé en aval de la station de fixation (18) et pouvant être couplé à la station de transfert (15) par l'intermédiaire du canal de sortie de papier (31).
- Dispositif d'impression électrographique selon la revendication 15, selon lequel le canal d'entrée de papier (30) du dispositif d'inversion est relié, par l'intermédiaire d'éléments d'entraînement de papier (57), à un canal de sortie de substrat d'enregistrement (29) affecté à la station de fixation (18), qui a une largeur utile d'au moins deux fois la largeur de bande du substrat d'enregistrement (10) et auquel il peut être couplé.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59400220T DE59400220D1 (de) | 1994-08-19 | 1994-08-19 | Wendeeinrichtung für bandförmige Aufzeichnungsträger |
EP94112973A EP0697634B1 (fr) | 1994-08-19 | 1994-08-19 | Dispositif d'inversion d'un substrat d'enregistrement en forme de bande |
US08/465,249 US5568245A (en) | 1994-08-19 | 1995-06-05 | Turnover device for web-shaped recording media |
JP7208874A JPH0858169A (ja) | 1994-08-19 | 1995-08-16 | 帯状の記録担体のための反転装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94112973A EP0697634B1 (fr) | 1994-08-19 | 1994-08-19 | Dispositif d'inversion d'un substrat d'enregistrement en forme de bande |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0697634A1 EP0697634A1 (fr) | 1996-02-21 |
EP0697634B1 true EP0697634B1 (fr) | 1996-04-17 |
Family
ID=8216220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94112973A Expired - Lifetime EP0697634B1 (fr) | 1994-08-19 | 1994-08-19 | Dispositif d'inversion d'un substrat d'enregistrement en forme de bande |
Country Status (4)
Country | Link |
---|---|
US (1) | US5568245A (fr) |
EP (1) | EP0697634B1 (fr) |
JP (1) | JPH0858169A (fr) |
DE (1) | DE59400220D1 (fr) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0699315B1 (fr) * | 1993-05-19 | 1996-10-30 | Siemens Nixdorf Informationssysteme AG | Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs |
FR2713989B1 (fr) * | 1993-12-21 | 1996-01-12 | Nipson | Imprimante à haute cadence d'impression et utilisations d'une telle imprimante. |
DE59506364D1 (de) * | 1994-07-15 | 1999-08-12 | Oce Printing Systems Gmbh | Multifunktionale druckeinrichtung mit modularem aufbau |
EP0771436B1 (fr) * | 1994-07-15 | 1999-07-07 | Océ Printing Systems GmbH | Dispositif d'impression multifonction pour imprimer des supports d'enregistrement se presentant sous forme de bandes |
EP0784807B1 (fr) * | 1994-10-06 | 1998-08-12 | Océ Printing Systems GmbH | Dispositif pour l'impression recto et/ou verso d'un support d'impression en forme de bande |
WO1996011159A1 (fr) * | 1994-10-06 | 1996-04-18 | Oce Printing Systems Gmbh | Dispositif de renversement pour support d'impression en forme de bande |
DE19506524C2 (de) * | 1995-02-24 | 1997-01-09 | Siemens Nixdorf Inf Syst | Anordnung zum Abtasten eines Antriebbandes in einem Druck- oder Kopiergerät |
WO1996030812A1 (fr) * | 1995-03-24 | 1996-10-03 | Oce Printing Systems Gmbh | Dispositif de synchronisation exacte du defilement parallele de supports d'enregistrement sous forme de bandes dans un dispositif d'impression electrographique |
US6108513A (en) * | 1995-04-03 | 2000-08-22 | Indigo N.V. | Double sided imaging |
WO1997014080A1 (fr) * | 1995-10-09 | 1997-04-17 | Oce Printing Systems Gmbh | Imprimante electrographique a dispositif corona reglable |
DE59608281D1 (de) * | 1995-10-27 | 2002-01-03 | Oce Printing Systems Gmbh | Einrichtung zum wenden oder versetzen einer bahn aus endlosem aufzeichnungsmaterial |
US5848345A (en) * | 1997-09-30 | 1998-12-08 | Xerox Corporation | Two sided imaging of a continuous web substrate with moving fusers |
US5970304A (en) * | 1997-09-30 | 1999-10-19 | Xerox Corporation | Two sided imaging of a continuous web substrate with a single print engine with in line transfer stations |
US5875383A (en) * | 1997-09-30 | 1999-02-23 | Xerox Corporation | Dual mode interchangeable modules cut sheet or web printing system with a single xerographic cut sheet print engine |
US5878320A (en) * | 1997-09-30 | 1999-03-02 | Xerox Corporation | Continuous imaging of a continuous web substrate with a single print engine with a photoreceptor belt seam |
US5860053A (en) * | 1997-09-30 | 1999-01-12 | Xerox Corporation | Two sided imaging of a continuous web substrate with a single print engine with alternating transfer stations |
US6050191A (en) * | 1997-10-16 | 2000-04-18 | Scitex Digital Printing, Inc. | System and method for providing multi-pass imaging in a printing system |
US6188865B1 (en) | 1998-06-12 | 2001-02-13 | OCé PRINTING SYSTEMS GMBH | Printer or copier image fixing station with guide yoke having low-wear deflector edge |
DE19827254B4 (de) * | 1998-06-18 | 2005-09-01 | OCé PRINTING SYSTEMS GMBH | Elektrografische Druckeinrichtung mit zwei Druckwerken, die auf eine umgelenkte Materialbahn drucken |
EP1265804B1 (fr) | 2000-03-22 | 2004-08-04 | Koenig & Bauer Aktiengesellschaft | Dispositif destine a devier une bande de materiau |
EP1299242B1 (fr) * | 2000-07-11 | 2011-10-12 | Textilma Ag | Installation de production continue d'une bande de textile imprime, notamment d'une bande d'etiquettes |
JP3624881B2 (ja) * | 2001-12-19 | 2005-03-02 | 株式会社篠原鉄工所 | サテライト型印刷機のシート反転装置 |
US8240843B2 (en) * | 2009-03-16 | 2012-08-14 | Hewlett-Packard Development Company, L.P. | Media roll winder for digital web press |
US8316766B2 (en) * | 2009-09-16 | 2012-11-27 | Xerox Corporation | Media inversion system for a continuous web printer |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1173278A (en) * | 1911-04-21 | 1916-02-29 | Carl A Kellogg | Web-printing machine. |
US3906855A (en) * | 1973-01-30 | 1975-09-23 | Wood Industries Inc | Web turning bar device |
US4014609A (en) * | 1974-08-12 | 1977-03-29 | Xerox Corporation | Programmable controller for controlling reproduction machines |
FR2557504B1 (fr) * | 1984-01-03 | 1987-06-19 | Seailles Tison Sa | Dispositif de retournement de papier pour impression verso-recto |
DE3406244A1 (de) * | 1984-02-21 | 1985-08-22 | Siemens AG, 1000 Berlin und 8000 München | Laserdrucksystem fuer mehrfarben- und rueckseitendruck |
CA1243907A (fr) * | 1985-02-05 | 1988-11-01 | Omnicrom Systems Corporation | Transfert selectif de feuilles metalliques pour la production d'images par xerographie |
JPS63185741A (ja) * | 1987-01-28 | 1988-08-01 | Minolta Camera Co Ltd | 複写機 |
US4889269A (en) * | 1988-09-21 | 1989-12-26 | Eastman Kodak Company | Web center-guiding apparatus |
JPH04339679A (ja) * | 1991-05-17 | 1992-11-26 | Minolta Camera Co Ltd | 記録装置 |
DE4129277A1 (de) * | 1991-09-03 | 1993-03-04 | Siemens Nixdorf Inf Syst | Elektrofotografisches simultan-doppeldrucksystem |
DE4335473C2 (de) * | 1993-10-18 | 2001-07-12 | Oce Printing Systems Gmbh | Wendeeinrichtung für einen bandförmigen Aufzeichnungsträger |
-
1994
- 1994-08-19 DE DE59400220T patent/DE59400220D1/de not_active Expired - Fee Related
- 1994-08-19 EP EP94112973A patent/EP0697634B1/fr not_active Expired - Lifetime
-
1995
- 1995-06-05 US US08/465,249 patent/US5568245A/en not_active Expired - Fee Related
- 1995-08-16 JP JP7208874A patent/JPH0858169A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0697634A1 (fr) | 1996-02-21 |
US5568245A (en) | 1996-10-22 |
DE59400220D1 (de) | 1996-05-23 |
JPH0858169A (ja) | 1996-03-05 |
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