EP0858618B1 - Elektrografischer drucker mit ausgleichsvorrichtungen - Google Patents
Elektrografischer drucker mit ausgleichsvorrichtungen Download PDFInfo
- Publication number
- EP0858618B1 EP0858618B1 EP96934386A EP96934386A EP0858618B1 EP 0858618 B1 EP0858618 B1 EP 0858618B1 EP 96934386 A EP96934386 A EP 96934386A EP 96934386 A EP96934386 A EP 96934386A EP 0858618 B1 EP0858618 B1 EP 0858618B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- compensation
- printer according
- electrographic printer
- section
- 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
-
- 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
-
- 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
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/16—Means for tensioning or winding the web
-
- 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
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/163—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
- G03G15/1635—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device
- G03G15/164—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device the second base being a continuous paper band, e.g. a CFF
-
- 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
- G03G2215/00443—Copy medium
- G03G2215/00451—Paper
- G03G2215/00464—Non-standard format
-
- 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 an electrographic printer, with an intermediate image carrier for simultaneous printing on a first web section of an endless carrier material and one spaced apart from the first track section second track section, with a transport device, the the path sections along a transport path on the intermediate frame passes, with at least one tensioning device, the first track section and the second track section against the intermediate image carrier during the printing process preloaded with at least one in the direction of transport seen behind the transport device web tensioner, which the web sections with during the printing process a tension in the direction of transport, and with one between the transport device and the tensioning device arranged compensation device that during the Printing the first web section or the first and pre-tensioned the second path section against the transport direction.
- the invention is concerned with a further development of a electrographic printing device for printing on band-shaped Recording media of different bandwidth WO 94/27193.
- the printing device described there has an electrographically working intermediate image carrier, for example a photoconductor drum or one over several Deflection pulley guided photo conductor track, its usable width the double width format of a standard form according to DIN A4 or a letter-size format.
- they are other units, such as the fuser station, the developer station, the cleaning station etc. to this usable width designed.
- single-color duplex operation becomes the path of the record carrier during transport turned by the printing device, so that two web sections result:
- a first track section of the track with the front on the Transfer point passed and then the fuser in which the toner image under the influence of Heat and pressure smudge-proof with the endless carrier material is connected.
- the web is on the side offset, turned and in the form of a second track section fed to the transfer printing station again and on the back printed. In this way it is possible to get the first and second web section simultaneously at the same transfer location to print on.
- two-color duplex operation is also possible.
- the two-tone simplex mode becomes the web during transport in the printing facility offset in parallel by at least one web width, and the Staggered path sections are placed side by side passed together at the transfer location.
- the printing device described in WO 94/27193 works according to the principle of electrophotography, in which as an intermediate image carrier a photoconductor is used on which with With the help of a light source, for example a laser or an LED line, a latent charge pattern corresponding to that printing printed image is applied.
- a light source for example a laser or an LED line
- the developer station arranged in the photoconductor becomes color particles transfer a desired color to the photoconductor and colored the charge image with toner particles.
- To the Developer station connects to the printing unit in which a corona device arranged at a distance from the photoconductor the toner image onto the by means of an electric field passed between the photoconductor and the corona device Endless carrier material that then transfers to the fuser in which the toner image is supplied by heat and pressure smudge-bonded to the endless carrier material becomes.
- the air between the corona device and the endless support material ionized by high field strengths, causing charge carriers to the side of the endless carrier material facing away from the photoconductor be generated.
- the well-known printer sees between the Transport device and the clamping device itself extending approximately over the entire width of the photoconductor Compensating device before that evenly on the Photoconductor side of the first and / or second Path section abuts and the first and / or second Track section against the transport direction with the same Force, which counteracts the attraction Opposing force is caused that leads to a defined Detaching the or the track sections from the surface of the Leads photoconductor in the area of the transfer point.
- an electrographic Printer with an intermediate image carrier for simultaneous printing a first web section of an endless carrier material and one next to the first track section at a distance arranged second track section, with a transport device, the two track sections along a transport track leads past the intermediate picture frame, with at least a tensioning device, the first web section and the second web section during the printing process against the Intermediate image carrier preloaded, with at least one in the transport direction seen arranged behind the transport device Web tensioner, which the web sections during the printing process subjected to tension in the direction of transport, with one between the transport device and the Clamping device arranged first compensation device, which oppose the first web section during the printing process biased in the direction of transport, and with one of the first compensation device separate second compensation device, the second web section during the printing process biased against the direction of transport.
- first balancer separate second balancing device By using one of the first balancer separate second balancing device it is possible to two web sections during the printing process independently to bias each other against the direction of transport. On this ensures that the web is made of continuous backing material in any operating mode of the printer, i.e. in particular during duplex operation and two-color simplex operation, despite tolerance-related or due to the fixing process caused length differences between the first and second web section a uniform pretensioning of the web sections done by the compensators, whereby a defined detachment of the web section or sections from the Surface of the photoconductor in the area of the transfer printing area achieved and a transfer of the toner image with constant high quality on the endless carrier material.
- the second compensation device is preferably located seen in the direction of transport in the same plane with the first balancing device, both balancing devices have the same distance from the photoconductor.
- first and second Compensating device are rigidly connected to each other, if a single web section is printed, the width of which is greater than half the entire width of the transport path.
- the two compensation devices can, for example through a screw connection get connected.
- Another option is to use it one slidable in one of the balancing devices recorded bolt, which in one on the other balancer intended opening can be accommodated, making the two balancers rigid with each other are connected.
- a mechanical Coupling possible between the first and second Compensating device arranged, the two compensating devices couples with each other. The control of this coupling device can both automatically by the controller the printer as well as manually by the operator.
- a compensation device for example their longitudinal direction extending transversely to the transport direction, pivotable about an axis running in the longitudinal direction Compensating swing arm used that the respective track section spring loaded.
- suitable mechanical spring elements such as compression springs, disc springs or the like.
- pneumatic or hydraulic To use damping devices, such as small hydraulic or pneumatic shock absorbers, the Damping rate on the endless carrier material used can be adjusted.
- each balancer has several about an axis running transversely to the transport path pivoted, spaced apart Compensating elements that are resilient on the respective track section issue. Tension by using several compensating elements only those compensating elements in front of the track section, which rest on the track section, so that a compared to a wide track section narrow track section of only a few compensating elements is biased and on the Narrow pre-tensioning force acting accordingly is less.
- too Compensating elements by mechanical spring elements, such as Compression springs, disc springs or the like, or with the help hydraulic or pneumatic damping devices spring-loaded.
- each compensation element is made using a leaf spring, one end of which is clamped in place, resilient biased.
- the leaf spring has several at its other end Spring tongues on the respective during the printing process Compensating element rest, at least one of the spring tongues by means of an actuating device from the compensating element can be moved away. That way, the on the prestressing force acting on the respective compensating element, for example if the printing process is interrupted, decreased. It is particularly advantageous here, the leaf spring long to get a flat characteristic, so that the spring force in the effective range of the compensating element changes only slightly. Three are preferred Spring tongues are used, with the middle spring tongue being stronger is trained and adjusted by the actuator becomes.
- each balancer has several in a plane next to each other at a distance arranged compensating elements, each compensating element formed as a leaf spring in the form of a swinging cross section is.
- the two tension Transfer printing swings the web sections against the intermediate image carrier before while in the second mode of the printer, in which the web sections are not printed, the Keep track sections at a distance from the intermediate frame.
- the first and second compensation device the first or second track section in the first operating mode against the transport direction forward and reduce the preload in the second operating mode to the respective rail section. Because during the second mode, the endless backing material is not on the intermediate image carrier is present and therefore no attractions act on the first or second path section, it is from Advantage caused by the balancers Preloads that counteract these attractive forces to reduce uneven loading of the web sections to prevent and at the same time a trouble-free Ensure transport through the transport device.
- the tensioning device and the compensation device and / or the web tensioner by an actuating device coupled together, which the devices in simultaneously the first or second operating mode.
- the printer has a transport device 10, the continuous carrier material arranged near a printing unit 12 conveyed by the printing unit 12, in which the a photoconductor drum 14, colored with toner Charge image using a corona device (not shown) is transferred to the carrier material. Subsequently becomes the carrier material of a fixing station 16 fed in which the still smearable toner image on the Carrier material smudge-proof with the help of pressure and temperature is connected to the carrier material.
- a first deflection unit 18 In the direction of transport seen in front of the printing unit 12 is a first deflection unit 18 arranged which the carrier material of the printing unit 12th and according to the selected operating mode Turn the backing material over (see Figure 3) or only on the side can move (see Figure 4).
- a second deflection unit 20 is seen in the transport direction after the fixing station 16 arranged. This second deflection unit 20 stacks the printed one Carrier material and can, depending on the selected operating mode, the material also the first Feed the deflection unit 18, as will be explained later.
- Figure 1 shows the printer in a first mode, the Simplex operation, in which a first web section A of the carrier material from a stack 22 through the first deflection unit 18 of the printing unit 12 is supplied. After printing the transport device 10 transports the web section A towards the fuser 16 where the toner image is firmly connected to the carrier material. Subsequently the second deflection unit 20 stacks the web section A. a second stack 24.
- Figure 2 shows the printer in a second mode, the Parallel simplex operation in which a first path section A and an adjacent second web section B at the same time through the printing unit 12 and the fixing station 16 is guided and then by the second deflection unit 20 is stacked on two stacks 24 and 26.
- FIG. 3 shows a third operating mode of the printer, the duplex operation, in which the endless carrier material is printed on the front and back.
- the first web section A passed through the fuser 16 and then through the second deflection unit 20 of the first deflection unit 18 fed.
- the first deflection unit 18 turns the carrier material and laterally offset it by at least one web width, so that now the back of the carrier material of the printing unit 12 can be supplied. After turning, it will Carrier material referred to as the second web section B.
- Has the second web section B passes through the printing unit 12 and carries a second backing material Print image, it is fed to the fuser 16, which Printed image on the back of the continuous backing material connects to the surface of the endless carrier material. After the fixing process is finished, the endless carrier material stacked on top of one another in the form of a stack 24.
- FIG. 4 shows a fourth operating mode, the two-color simplex mode, where the front of the continuous backing first in a first color and with one on it subsequent second print run in a second color is printed.
- the carrier material is called first web section A of the printing unit 12 using the first deflection unit 18 supplied.
- the carrier material in the fixing station 16 After printing on the Carrier material transported through the printing unit 12 Transport device 10 the carrier material in the fixing station 16 to firmly adhere the toner image to the substrate connect.
- the fixation process is finished
- After moving the carrier material through the the first deflection unit 18 becomes the section of the carrier material referred to as the second path section B.
- This section of track B passes through the printing unit 12 in which the second print image is transferred to the track section B. After the print image has been absorbed by the carrier material the transport device 10 the second path section B of the Fuser 16 to. In the fixing station 16, the second Print image fixed on the second web section B, which then by the second deflection unit 20 on a second one Stack 24 is piled up.
- Figure 5 shows a side view of a first embodiment a printing unit 30 with a photoconductor drum 32 and a tensioning device 34, which is a web 36 made of endless carrier material in a first operating state, i.e. during the Printing process, biased against the photoconductor drum 32 and passes at a transfer location 38.
- the tensioning device 34 holds the web 36 Distance to the photoconductor drum 32 (shown in dashed lines).
- the tensioning device 34 has one below the Transfer location 38 arranged lower transfer rocker 40, the in its longitudinal direction transverse to the transport direction is pivotally mounted about a lower axis 42.
- corona device 50 with a parallel to the longitudinal axis the photoconductor drum 32 at a constant distance from it tensioned corona wire 52 is provided.
- each of the balance rockers 56 and 58 has a guide section 60, which bears against the underside of the web 36 and on a compression spring 62 on its side facing away from the web 36 carries, which are supported on the frame of the printer and the first balance rocker 56 and the second balance rocker 58 resiliently against the web 36 in the first operating mode preloaded.
- the web 36 is transported by means of a transport device 64 Printing unit 30 passed.
- the transport device 64 has a total of four crawler units 66, 68, 70 and 72, of which however, only the fourth caterpillar unit 72 can be seen in FIG is the construction of the track units 66, 68 and 70 is like.
- the crawler unit 72 has one in the transport direction of the web 36 aligned conveyor belt 74 on a drive wheel 76 larger diameter is raised and by means of a Clamping wheel 78 of smaller diameter, which is at a distance from the Drive wheel 76 is arranged in alignment with this, below Bias is maintained.
- On the radially facing away Surface of the conveyor belt 74 are several in Direction of transport arranged one behind the other with the same distance Transport spikes 80 attached.
- the transport spikes 80 engage in transport holes 82, which also in Direction of transport seen with constant distance on left and on the right edge of the web 36 are formed.
- Seen in the transport direction after the transport device 64 5 shows a web tensioner 84 which extends in the longitudinal direction extends transversely to the direction of transport and by one arranged parallel to the longitudinal axis of the photoconductor drum 32 Axis 86 is pivotally mounted.
- the web tensioner 84 is as Swing arm designed in the first mode with your tapered end 88 under tension on the web 36 is present and in the second operating mode by means of an actuator (not shown) is pivoted away from the web 36.
- Figure 6 shows a top view of the printing unit 30 during printing on two web sections A and B of web 36 Endless carrier material.
- first track section A by means of the two crawler units 66 and 68 and the second track section B by means of the two crawler units 70 and 72 passed at the transfer location 38, the Tensioning device 34 against the two web sections A and B. prestresses the surface of the photoconductor drum 32.
- the two web sections A and B passes the transfer point 38 they will be assigned to the one assigned to them first balance rocker 56 and second balance rocker 58 headed the two track sections A and B independently bias from each other.
- FIG. 7 shows a top view of the printing unit 30 during the Printing on a single, particularly wide web section A of web 36 made of continuous support material, which is both on the first balance rocker 56 and on the second balance rocker 58 rests.
- Transport takes place via the third and fourth crawler units 70 and 72 on the width of the web section A are set accordingly, while the first and second crawler units 66 and 68 laterally the transport path are shown on the left in FIG.
- the two balancing arms 56 and 58 on their facing each other End faces firmly connected to one another by means of a bolt 90.
- Figure 8 shows a second embodiment of a printing unit 100 with a photoconductor drum 102 and a clamping device 104 during the printing of two web sections A and B a web 106 made of continuous carrier material.
- the two track sections A and B are separated by a first and a second Track unit 108 and 110 or a third and fourth track unit 112 and 114 passed the photoconductor drum 102.
- the length compensation of the track sections A and B takes place via a plurality of compensating elements 116, which are parallel to the Longitudinal axis of the photoconductor drum 102 arranged axis of rotation 118 are pivotally mounted and on the photoconductor drum 102 facing away from the bottom of the first web section A or second web section B under tension.
- FIG. 9A shows an enlarged side view of the compensating elements 116, each with a bearing section 120 on the Axis of rotation 118 are mounted and with a guide section 122 bear against the underside of the web 106.
- a small compression spring 124 is attached to each compensation element 116, which has its other end on frame 126 of the Printer supports and so the compensation element resilient against pre-tensioned the web 106.
- Figure 9B shows a partially sectioned Rear view of the compensation elements 116 along the Section line I-I of Figure 9A. As can be seen from FIG. 9B, are the compensating elements 116 at their respective in the transport direction aligned side edges 128 beveled formed, causing damage to the side edges of the Lane 106 is prevented.
- FIG. 10A shows a third embodiment of a printing unit, used in the spring compensation elements 128.
- These spring compensation elements 130 have a fastening section 132 with which it is attached to the frame 134 of the printer and a guide portion 136 on which A web 138 of the continuous carrier material is guided along the top becomes.
- Figure 10B shows a sectional rear view along the section line II-II of Figure 10A, from which can be seen is that the spring compensation elements 130 at their in Transport direction extending bevelled side edges 140 to prevent damage to the edges of the web 138.
- each with little force against the bottom of the The web of continuous backing material is under tension, it is possible to pass through even particularly narrow sections of track to guide the printer because of the biasing force that is only due the compensation elements actually in use is determined, is very low and an excessive preload of the endless carrier material is avoided.
- Figure 11 shows a side view of a fourth embodiment a printing unit 150, in which several compensation elements 152 pivotable on a common axis of rotation 154 are stored, each resilient by a leaf spring 156 can be biased against a web 158 of carrier material.
- each compensating element 152 there is also a radial from the Axis of rotation 154 outwardly projecting pin 160 is provided, the one in the bearing section 162 of each compensating element 152 formed recess 164 protrudes.
- the pin 160 the pivoting movement of the compensating element 154 is limited, to prevent 158 one of its side edges on a compensating element 152 threading.
- the leaf spring 156 is at one end 166 on the frame 168 attached to the printer, while the free other end 170 rests on the underside of the compensating element 152.
- the end 170 has two narrow laterally arranged spring tongues 172 and 174 and one between two spring tongues 172 and 174 provided middle Spring tongue 176 of greater width, which, as shown in Figure 11, a U-shaped section protruding vertically downwards 178 has.
- this U-shaped section 178 is in one Receiving opening (not shown) the free end of a first lever 180 added radially from a bushing 182 protrudes, which is rotatably mounted on an axis 184.
- the printing device carries the B-Bru when it passes through again through the transfer station (printing unit 12) fixed toner image.
- Becomes a transfer station accordingly an embodiment shown in Figure 5 used comes the already fixed toner image with the deflection rail 48 in contact and rubs against this. So there is a risk that seen behind in the direction of transport of the record carrier the round deflection areas are deposited with toner dust, which after Building up a corresponding amount and that Print image is noticeable due to stains.
- paper debris and toner dust can accumulate then when passing through the fuser on the Toner images is additionally fixed.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Description
- Fig. 1
- eine Prinzipdarstellung eines Druckers, der im Simplexbetrieb arbeitet,
- Fig. 2
- eine Prinzipdarstellung des Druckers nach der Figur 1, der im Parallel-Simplexbetrieb arbeitet,
- Fig. 3
- eine Prinzipdarstellung eines Druckers nach der Figur 1, der im Duplexbetrieb arbeitet,
- Fig. 4
- eine Prinzipdarstellung des Druckers nach der Figur 1, der im Zweifarben-Simplexbetrieb arbeitet,
- Fig. 5
- eine Seitenansicht eines Ausführungsbeispieles einer Druckereinheit,
- Fig. 6
- eine Draufsicht der Druckereinheit nach der Figur 5 beim Bedrucken zweier nebeneinander mit Abstand angeordneter Bahnabschnitte,
- Fig. 7
- eine Draufsicht der Druckeinheit nach der Figur 5 beim Bedrucken eines sich annähernd über die gesamte Breite eines Fotoleiters erstreckenden ersten Bahnabschnittes,
- Fig. 8
- eine Draufsicht einer zweiten Ausführungsform einer Druckeinheit, mit mehreren Ausgleichselementen,
- Fig. 9A
- eine vergrößerte Seitenansicht eines Ausgleichselementes nach der Figur 8,
- Fig. 9B
- eine teilweise geschnittene Rückansicht des Ausgleichselementes nach Figur 9A, geschnitten entlang der Schnittlinie I-I,
- Fig. 10A
- eine vergrößerte Seitenansicht einer dritten Ausführungsform einer Druckereinheit mit mehreren Federausgleichselementen,
- Fig. 10B
- eine teilweise geschnittene Rückansicht des Federausgleichselementes nach der Figur 10A, geschnitten entlang der Schnittlinie II-II
- Fig. 11
- eine Seitenansicht einer vierten Ausführungsform einer Druckeinheit mit Ausgleichselementen, die mittels Blattfedern vorgespannt werden, und
- Fig. 12
- eine Draufsicht einer Blattfeder, die in der Druckeinheit nach Fig. 11 Verwendung findet.
- Fig. 13
- eine Seitenansicht eines Ausführungsbeispieles einer Druckereinheit mit Rollen als Umlenkelemente.
- 10
- Transportvorrichtung
- 12
- Druckeinheit
- 14
- Fotoleitertrommel
- 16
- Fixierstation
- 18
- erste Umlenkeinheit
- 20
- zweite Umlenkeinheit
- 22
- erster Stapel
- 24
- zweiter Stapel
- 26
- Stapel
- A
- erster Bahnabschnitt
- B
- zweiter Bahnabschnitt
- 30
- Druckeinheit
- 32
- Fotoleitertrommel
- 34
- Spannvorrichtung
- 36
- Bahn
- 38
- Umdruckstelle
- 40
- untere Umdruckschwinge
- 42
- untere Achse
- 44
- obere Umdruckschwinge
- 46
- obere Achse
- 48
- Umlenkschiene
- 50
- Koronaeinrichtung
- 52
- Koronadraht
- 54
- Drehachse
- 56
- erste Ausgleichsschwinge
- 58
- zweite Ausgleichsschwinge
- 60
- Führungsabschnitt
- 62
- Druckfeder
- 64
- Transportvorrichtung
- 66
- erste Raupeneinheit
- 68
- zweite Raupeneinheit
- 70
- dritte Raupeneinheit
- 72
- vierte Raupeneinheit
- 74
- Transportriemen
- 76
- Antriebsrad
- 78
- Spannrad
- 80
- Transportstacheln
- 82
- Transportlöcher
- 84
- Bahnspanner
- 86
- Achse
- 88
- verjüngendes Ende
- 90
- Bolzen
- 100
- Druckeinheit
- 102
- Fotoleitertrommel
- 104
- Spannvorrichtung
- 106
- Bahn
- 108
- erste Raupeneinheit
- 110
- zweite Raupeneinheit
- 112
- dritte Raupeneinheit
- 114
- vierte Raupeneinheit
- 116
- Ausgleichselemente
- 118
- Drehachse
- 120
- Lagerabschnitt
- 122
- Führungsabschnitt
- 124
- Druckfeder
- 126
- Gestell
- 128
- Seitenkanten
- 130
- Federausgleichselement
- 132
- Befestigungsabschnitt
- 134
- Gestell
- 136
- Führungsabschnitt
- 138
- Bahn
- 140
- Seitenkanten
- 150
- Druckeinheit
- 152
- Ausgleichselement
- 154
- Drehachse
- 156
- Blattfeder
- 158
- Bahn
- 160
- Zapfen
- 162
- Lagerabschnitt
- 164
- Aussparung
- 166
- Ende
- 168
- Gestell
- 170
- freies Ende
- 172
- seitliche Federzunge
- 174
- seitliche Federzunge
- 176
- mittlere Federzunge
- 178
- U-förmiger Abschnitt
- 180
- erster Hebel
- 182
- Buchse
- 184
- Achse
- 186
- zweiter Hebel
- 188
- Nocken
- 190
- weitere Achse
- 250
- Umlenkrolle
- 251
- Umlenkrolle
Claims (16)
- Elektrografischer Drucker,mit einem Bildzwischenträger (14, 32, 102) zum gleichzeitigen Bedrucken eines ersten Bahnabschnittes (A) eines Endlos-Trägermaterials und eines neben dem ersten Bahnabschnitt (A) mit Abstand angeordneten zweiten Bahmabschnittes (B),mit einer Transportvorrichtung (10, 64), die die beiden Bahnabschnitte (A, B) entlang einer Transportbahn am Bildzwischenträger (14, 32, 102) vorbeiführt,mit mindestens einer Spannvorrichtung (34, 104), die den ersten Bahnabschnitt (A) und den zweiten Bahnabschnitt (B) während des Druckvorganges gegen den Bildzwischenträger (14, 32, 102) vorspannt,mit mindestens einem in Transportrichtung gesehen hinter der Transportvorrichtung (10, 64) angeordneten Bahnspanner (84), der die Bahnabschnitte (A, B) während des Druckvorganges mit einer Zugspannung in Transportrichtung beaufschlagt,mit einer zwischen der Transportvorrichtung (10, 64) und der Spannvorrichtung (34, 104) angeordneten ersten Ausgleichsvorrichtung (56), die während des Druckvorganges den ersten Bahnabschnitt (A) entgegen der Transportrichtung vorspannt, gekennzeichnet durcheine von der ersten Ausgleichsvorrichtung (56) getrennte zweite Ausgleichsvorrichtung (58), die den zweiten Bahnabschnitt (A) während des Druckvorganges entgegen der Transportrichtung vorspannt.
- Elektrografischer Drucker nach Anspruch 1, dadurch gekennzeichnet, daß sich die zweite Ausgleichsvorrichtung (58) in Transportrichtung gesehen in derselben Ebene mit der ersten Ausgleichsvorrichtung (56) befindet und beide Ausgleichsvorrichtungen (56, 58) denselben Abstand vom Bildzwischenträger (32) haben.
- Elektrografischer Drucker nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die erste und zweite Ausgleichsvorrichtung (56, 58) starr miteinander verbunden sind, wenn ein einziger Bahnabschnitt (A) bedruckt wird, dessen Breite größer als die Hälfte der gesamten Breite der Transportbahn ist.
- Elektrografischer Drucker nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jede Ausgleichsvorrichtung mindestens eine sich in ihrer Längsrichtung quer zur Transportrichtung erstreckende, um eine in der Längsrichtung verlaufende Achse (54) schwenkbare Ausgleichsschwinge (56, 58) ist, die den jeweiligen Bahnabschnitt (A, B) federnd vorspannt.
- Elektrografischer Drucker nach einem der Ansprüche 1, 2 oder 3, dadurch gekennzeichnet, daß jede Ausgleichsvorrichtung mehrere um eine quer zur Transportbahn verlaufende Achse (118, 154) schwenkbar gelagerte nebeneinander mit Abstand angeordnete Ausgleichselemente (116, 152) hat, die federnd am jeweiligen Bahnabschnitt (A, B) anliegen.
- Elektrografischer Drucker nach Anspruch 5, dadurch gekennzeichnet, daß jedes Ausgleichselement (152) mittels einer Blattfeder (156), deren eines Ende (166) ortsfest eingespannt ist, federnd vorgespannt ist und daß das andere Ende (170) der Blattfeder (156) mehrere während des Druckvorganges am jeweiligen Ausgleichselement (152) anliegende Federzungen (172, 174, 176) hat, wobei mindestens eine der Federzungen (176) mittels einer Betätigungseinrichtung (180) vom jeweiligen Ausgleichselement wegbewegbar ist.
- Elektrografischer Drucker nach Anspruch 6, dadurch gekennzeichnet, daß die Blattfeder (156) drei Federzungen (172, 174, 176) hat, wobei die mittlere Federzunge (176) von der Betätigungseinrichtung bewegt wird, wobei die Betätigungseinrichtung vorzugsweise durch eine an einem Nocken (188) anliegende Hebelanordnung (180, 186) realisiert ist,
- Elektrografischer Drucker nach einem der Ansprüche 1, 2 oder 3, dadurch gekennzeichnet, daß jede Augleichsvorrichtung mehrere in einer Ebene nebeneinander mit Abstand angeordnete Ausgleichselemente (130) hat, und daß jedes Ausgleichselement (130) als eine im Querschnitt schwingenförmige Blattfeder ausgebildet ist.
- Elektrografischer Drucker nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Spannvorrichtung (34) mindestens eine in Transportrichtung gesehen vor dem Bildzwischenträger (32) angeordnete, sich quer zur Transportrichtung erstreckende Umlenkschiene (48), mindestens eine zwischen der Umlenkschiene (48) und dem Bildzwischenträger (32) angeordnete, schwenkbar gelagerte untere Umdruckschwinge (40) und mindestens eine zwischen dem Bildzwischenträger (32) und den Ausgleichsvorrichtungen (56, 58) angeordnete, schwenkbar gelagerte obere Umdruckschwinge (44) hat, wobei in einer ersten Betriebsart des Druckers, in der die beiden Bahnabschnitte (A, B) bedruckt werden, die beiden Umdruckschwingen (40, 44) die Bahnabschnitte (A, B) gegen den Bildzwischenträger (32) vorspannen und in einer zweiten Betriebsart des Druckers, in der die Bahnabschnitte (A, B) nicht bedruckt werden, die Bahnabschnitte (A, B) im Abstand zum Bildzwischenträger (32) halten.
- Elektrografischer Drucker nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die erste und zweite Ausgleichsvorrichtung (56, 58) den ersten bzw. zweiten Bahnabschnitt (A, B) in der ersten Betriebsart entgegen der Transportrichtung vorspannen, und daß sie in der zweiten Betriebsart die Vorspannung an den jeweiligen Bahnabschnitten (A, B) verringern.
- Elektrografischer Drucker nach einem der vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß der Bahnspanner (84) eine sich in Längsrichtung quer zur Transportrichtung erstreckende, um eine in Längsrichtung verlaufende Achse (86) schwenkbare Schwinge ist, deren sich verjüngendes Ende (88) nur in der ersten Betriebsart am jeweiligen Bahnabschnitt (A, B) unter Vorspannung anliegt.
- Elektrografischer Drucker nach einem der Ansprüche 10 oder 11, gekennzeichnet durch eine Stelleinrichtung, die die Spannvorrichtung (34) und die Ausgleichsvorrichtungen (56, 58) und/oder den Bahnspanner (84) miteinander koppelt und sie gleichzeitig in die erste bzw. zweite Betriebsart stellt.
- Elektrografischer Drucker nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Bildzwischenträger ein Fotoleiter, vorzugsweise eine Fotoleitertrommel (14, 32, 102), vorgesehen ist.
- Elektrografischer Drucker nach einem der vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß der Drucker, bevorzugt an Umlenkstellen des Aufzeichnungsträgers die mit einem bereits fixierten Tonerbild in Kontakt kommen, Umlenkrollen (250, 251) aufweist.
- Elektrografischer Drucker nach Anspruch 14, dadurch gekennzeichnet, daß daß die Spannvorrichtung (34) mindestens eine in Transportrichtung gesehen vor dem Bildzwischenträger (32) angeordnete, sich quer zur Transportrichtung erstreckende Umlenkrolle (250, 251) aufweist.
- Elektrografischer Drucker nach einem der Ansprüche 14 oder 15, dadurch gekennzeichnet, daß elekrostatische Aufladungen mindestens der Mantelfläche der Umlenkrollen (250, 251) verhindernde Mittel vorgesehen sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19541061 | 1995-11-03 | ||
DE19541061A DE19541061C1 (de) | 1995-11-03 | 1995-11-03 | Elektrografischer Drucker mit Ausgleichsvorrichtungen |
PCT/DE1996/001591 WO1997017635A1 (de) | 1995-11-03 | 1996-08-28 | Elektrografischer drucker mit ausgleichsvorrichtungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0858618A1 EP0858618A1 (de) | 1998-08-19 |
EP0858618B1 true EP0858618B1 (de) | 1999-06-16 |
Family
ID=7776575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96934386A Expired - Lifetime EP0858618B1 (de) | 1995-11-03 | 1996-08-28 | Elektrografischer drucker mit ausgleichsvorrichtungen |
Country Status (4)
Country | Link |
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US (1) | US5937259A (de) |
EP (1) | EP0858618B1 (de) |
DE (2) | DE19541061C1 (de) |
WO (1) | WO1997017635A1 (de) |
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DE19758483C2 (de) * | 1997-06-20 | 2001-03-29 | Weidmueller Interface | Laserdrucker |
DE19749386C2 (de) * | 1997-11-07 | 2000-02-24 | Oce Printing Systems Gmbh | Umdruckstation für ein elektrografisches Gerät mit einer Andruckrolle im Umdruckbereich |
DE19900164A1 (de) | 1999-01-05 | 2000-07-27 | Oce Printing Systems Gmbh | Verfahren und Einrichtung zur Regelung der Tonerkonzentration in einem elektrografischen Prozess |
JP2003186316A (ja) * | 2001-12-19 | 2003-07-04 | Fuji Xerox Co Ltd | 画像形成装置及び画像形成方法 |
WO2003079119A1 (fr) * | 2002-03-18 | 2003-09-25 | Fuji Xerox Co., Ltd. | Mecanisme de transfert d'image et dispositif de formation d'image utilisant ledit mecanisme |
DE10250827B3 (de) | 2002-10-31 | 2004-07-15 | OCé PRINTING SYSTEMS GMBH | Verfahren, Steuerungsschaltung, Computerprogrammprodukt und Druckgerät für einen elektrografischen Prozess mit temperaturkompensierter Entladetiefenregelung |
RU2614483C2 (ru) | 2011-11-10 | 2017-03-28 | ПЭКСАЙЗ, ЭлЭлСи | Обрабатывающая машина |
WO2013106180A1 (en) | 2012-01-09 | 2013-07-18 | Packsize Llc | Converting machine with an upward outfeed guide |
US10093438B2 (en) | 2014-12-29 | 2018-10-09 | Packsize Llc | Converting machine |
US10850469B2 (en) | 2016-06-16 | 2020-12-01 | Packsize Llc | Box forming machine |
CN109311256B (zh) * | 2016-06-16 | 2021-06-22 | 派克赛泽有限责任公司 | 箱模板生产***和方法 |
US11242214B2 (en) | 2017-01-18 | 2022-02-08 | Packsize Llc | Converting machine with fold sensing mechanism |
SE541921C2 (en) | 2017-03-06 | 2020-01-07 | Packsize Llc | A box erecting method and system |
SE540672C2 (en) | 2017-06-08 | 2018-10-09 | Packsize Llc | Tool head positioning mechanism for a converting machine, and method for positioning a plurality of tool heads in a converting machine |
US11173685B2 (en) | 2017-12-18 | 2021-11-16 | Packsize Llc | Method for erecting boxes |
US11305903B2 (en) | 2018-04-05 | 2022-04-19 | Avercon BVBA | Box template folding process and mechanisms |
US11247427B2 (en) | 2018-04-05 | 2022-02-15 | Avercon BVBA | Packaging machine infeed, separation, and creasing mechanisms |
WO2019246344A1 (en) | 2018-06-21 | 2019-12-26 | Packsize Llc | Packaging machine and systems |
SE543046C2 (en) | 2018-09-05 | 2020-09-29 | Packsize Llc | A box erecting method and system |
US11524474B2 (en) | 2018-11-30 | 2022-12-13 | Packsize Llc | Adjustable cutting and creasing heads for creating angled cuts and creases |
WO2020146334A1 (en) | 2019-01-07 | 2020-07-16 | Packsize Llc | Box erecting machine |
US11701854B2 (en) | 2019-03-14 | 2023-07-18 | Packsize Llc | Packaging machine and systems |
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1995
- 1995-11-03 DE DE19541061A patent/DE19541061C1/de not_active Expired - Fee Related
-
1996
- 1996-08-28 EP EP96934386A patent/EP0858618B1/de not_active Expired - Lifetime
- 1996-08-28 DE DE59602267T patent/DE59602267D1/de not_active Expired - Lifetime
- 1996-08-28 WO PCT/DE1996/001591 patent/WO1997017635A1/de active IP Right Grant
- 1996-08-28 US US09/051,786 patent/US5937259A/en not_active Expired - Fee Related
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WO1994027193A1 (de) * | 1993-05-19 | 1994-11-24 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Elektrografische druckeinrichtung zum bedrucken von bandförmigen aufzeichnungsträgern unterschiedlicher bandbreite |
Also Published As
Publication number | Publication date |
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WO1997017635A1 (de) | 1997-05-15 |
US5937259A (en) | 1999-08-10 |
DE19541061C1 (de) | 1996-11-07 |
DE59602267D1 (de) | 1999-07-22 |
EP0858618A1 (de) | 1998-08-19 |
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