EP0470094B1 - Dispositif d'impression d'images - Google Patents

Dispositif d'impression d'images Download PDF

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Publication number
EP0470094B1
EP0470094B1 EP90906128A EP90906128A EP0470094B1 EP 0470094 B1 EP0470094 B1 EP 0470094B1 EP 90906128 A EP90906128 A EP 90906128A EP 90906128 A EP90906128 A EP 90906128A EP 0470094 B1 EP0470094 B1 EP 0470094B1
Authority
EP
European Patent Office
Prior art keywords
sheet
lid
housing
feed roller
image recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90906128A
Other languages
German (de)
English (en)
Other versions
EP0470094A1 (fr
Inventor
Karl-Heinz Dreinhoff
Thomas Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19893943238 external-priority patent/DE3943238A1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0470094A1 publication Critical patent/EP0470094A1/fr
Application granted granted Critical
Publication of EP0470094B1 publication Critical patent/EP0470094B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/58—Supply holders for sheets or fan-folded webs, e.g. shelves, tables, scrolls, pile holders

Definitions

  • the invention relates to an image recording device with a recording head, which is opposite the device of a printing roller in a housing, with a sheet feed opening contained in the upper side of the housing, from which a sheet feed channel leads up to the printing roller and through which a recording medium can be inserted manually, and with a sheet ejection channel, which leads from the pressure roller to a sheet ejection opening contained in the upper side of the housing, through which the record carrier can be transported out of the device.
  • Such an image recording device known from DE-A-35 39 526 is designed as a parallel thermal transfer printer, in which a line-shaped recording head is arranged within a housing and is opposed by a printing roller in an axis-parallel orientation.
  • a ribbon cassette can be inserted into the housing, in which a ribbon is stored on two winding spools that are axially parallel to the printing roller, the ribbon section between the two winding spools running between the recording head and the printing roller.
  • the ribbon cassette contains a window-like recess which also serves as a sheet feed opening and as a sheet ejection opening, through which a single sheet to be printed can be inserted into a sheet feed gap formed by the ink ribbon and the printing roller; the single sheet is guided past the recording head by the rotating printing roller with the interposition of the ink ribbon, printed by the latter and then guided out of the known image recording device through the window-like recess.
  • an image recording device which can be equipped with an attachment which can be placed on the housing of the device for the automatic feeding of single sheets of a sheet supply, which has an obliquely arranged sheet storage cassette with a sheet separating device and a sheet storage for receiving the single sheets has their printing.
  • the overall height of the known device is determined to a considerable extent by the attachment, which must also be handled separately as an addition to the device.
  • the invention is therefore based on the object of specifying an image recording device in which a manual or automatic single sheet feed is optionally possible and which is nevertheless distinguished by a particularly compact structure.
  • the object is achieved in that in the device of the type mentioned above, the top of the housing has a hinged lid which can be locked in an open position to form a sheet supply cassette for individual sheets to be printed in an inclined position and that a drivable sheet feed roller is pivotally mounted on a lever part in such a way that the sheet feed roller is below the lid when the lid is closed and rests on the individual sheets contained in the sheet supply cassette when the lid is open.
  • a major advantage of the image recording device according to the invention is that when the lid is closed it has an extremely compact structure with the smallest possible outer dimensions for transport purposes and that the sheet supply cassette required for automatic single sheet feeding is formed by simply opening the lid.
  • the sheet feed roller with the lid closed is completely inserted into the top single sheet of a sheet stack inserted in the sheet storage cassette formed by the lid and enables automatic sheet separation and sheet feeding when the lid is closed Housing is retractable.
  • the lid advantageously serves as protection and cover for sensitive parts of the image recording device during its transport, as well as protection for the respective means of transport, for example a briefcase - against sharp-edged parts of the device.
  • an advantageous development of the image recording device provides that the sheet feed roller rests on a counter roller in the course of the sheet feed channel when the cover is closed.
  • the sheet feed roller has a dual function, thereby reducing the number of functional parts required for the optional manual or automatic sheet feeder is kept extremely low, which leads to a space saving inside the housing, thus contributing to the compact structure of the image recording device according to the invention and resulting in a correspondingly low weight.
  • the cover is pivotally mounted in the area of a cover edge facing the sheet feed roller and parallel to it over a spacer about an axis of rotation running below the top of the housing.
  • a further development of the image recording device according to the invention provides that the cover has extensions in the region of its end near the sheet feed roller, which are guided in guides fixed to the housing, and that the guides are formed approximately in a part-circle, with the centers of the Partial circles lie on a straight line parallel to the pressure roller running below the top of the housing.
  • the guides can be formed directly as groove-like depressions in the inner sides of the side housing walls during the spraying process; the extensions of the cover can, for example, also be molded or cast directly, so that the cover is guided without guide elements which have to be manufactured separately.
  • the guides can also be designed as concave polygons with respect to the pressure roller, in which case the center points of the enveloping partial circles lie on the straight line parallel to the pressure roller and running below the upper side of the housing.
  • Image recording device consists in that in the housing a sheet stop edge serving as a stop for the single sheets deposited in the sheet storage cassette is arranged with sheet separation corners, which the lid comes to lie with its lid edge in the opened state.
  • a sheet stop edge serving as a stop for the single sheets deposited in the sheet storage cassette is arranged with sheet separation corners, which the lid comes to lie with its lid edge in the opened state.
  • the sheet separation corners are advantageously held resiliently on the sheet stop edge and by means of a driving device on the lever part carrying the sheet feed roller together with the sheet feed roller of the single sheets can be lifted off in the sheet supply cassette.
  • a further development of the image recording device according to the invention which is advantageous in terms of production technology and with regard to the assembly of the image recording device, provides that the cover in the area of a sheet feed roller facing and parallel to the cover edge parallel to at least one sheet stop and sheet separation corners in the area of the ends of the cover edge for those in the sheet supply cassette has stored single sheets.
  • the cover in the opened state has approximately the format of the individual sheets to be recorded.
  • the cover consists of two cover parts, one of which is a cover part one of the parallel edges opposite the cover side facing the sheet feed roller is connected via a hinge to the other cover part.
  • a pivotable sheet storage compartment for holding the printed single sheets coming from the sheet ejection channel is held on the lever part carrying the sheet feed roller closed lid can be opened under this position in the housing of the device in an approximately parallel to the oblique position when the lid is open.
  • the sheet tray can therefore be sunk under the cover in the housing of the device, so that the device as a whole has a very compact structure.
  • the device according to the invention has an advantageous development It is provided that the sheet feed roller lies on the individual sheets contained in the sheet storage cassette together with a sheet transport roller resting on the sheet feed roller in the course of the sheet ejection channel, the sheet storage compartment being arranged directly behind the sheet feed roller as seen in the sheet conveying direction. As a result, the multiple use of the sheet feed roller is extended by a further function in that the printed single sheets are transported into the sheet storage compartment through the sheet feed roller.
  • a further advantageous development of the image recording device is that when the sheet feed roller lies on the individual sheets contained in the sheet storage cassette, a drivable sheet feed roller arranged concentrically to the axis of rotation of the lever part lies between the pressure roller and the sheet feed roller and that the sheet storage compartment is seen immediately behind in the sheet feed direction the sheet feed roller is arranged.
  • the recording head with an electrical control device is arranged in the bottom region of the housing of the device and that at least the pressure roller and the lever part with the sheet feed roller are held on a holding frame which follows from this in the housing is pivoted out at the top. This ensures that by simple Swiveling up the holding frame, the conveying path for the single sheets can be exposed for the removal of possibly stuck single sheets.
  • the recording head and the electrical control device are exposed for maintenance or repair purposes.
  • the holding frame preferably has two bearing points in front of and behind it, seen in the sheet conveying direction of the printing roller, for inserting winding coils that are axially parallel to the printing roller, on the holding frame directly next to the bearing point located behind the printing roller, a gearwheel which engages with a drive for driving the bearing point used winding spool is arranged.
  • a winding spool with roll paper to be printed can be used, which after printing can either be led out of the image recording device through the sheet ejection channel or - if, for example, the printed information is not accessible to everyone should be wound on the bearing located behind the pressure roller on another winding spool inside the housing.
  • receiving and aligning elements are provided in the bottom region of the housing for the releasable fastening of a support body for receiving winding spools in parallel with the printing roller.
  • the two winding spools can be particularly user-friendly are used together in the housing of the device and removed from this again.
  • FIGS 1 to 4 each show in longitudinal section a thermal printer as a preferred embodiment of the image recording device according to the invention.
  • the image recording device shown consists of a housing 1, in the interior and there directly in the bottom region of the housing 1 as a recording head 2, a thermal print head with a row of individually controllable heating elements 3 running perpendicular to the plane of the drawing is arranged.
  • the recording head 2 is connected on its connection side to a printed circuit board 4 which carries an electrical control device 5 for the image recording device, which is indicated here only by a dash-dotted border.
  • the circuit board 4 is also at its edge facing away from the recording head 2 with an in one Housing wall 6 embedded and externally accessible connection socket 7 for supplying image recording data and control signals to the electrical control device 5 connected.
  • the housing 1 is detachably connected to a power supply part 9, which is only indicated here by its outer border, the housing 1 and the power supply part 9 complementing one another structurally and functionally to form the entire image recording device.
  • a holding frame 10 for a plurality of functional parts of the image recording device is held so as to be pivotable about a pivot axis 11 running perpendicular to the plane of the drawing near the housing wall 8, so that the holding frame 10 together with the functional parts held on it
  • the inside of the housing 1 can be pivoted outward by more than 90 ° into a position which makes the functional parts on the holding frame 10 accessible from the outside and exposes the recording head 2 and the printed circuit board 4 with the electrical control device 5 (FIG. 2).
  • the following functional parts essential for the explanation of the invention are arranged on the holding frame 10, reference being made essentially to FIG. 1.
  • a pressure roller 12 is mounted on the holding frame 10 which, as additionally shown in FIGS. 3 and 4, lies directly opposite the line with the heating elements 3 when the holding frame 10 is folded into the interior of the housing 1 is coming.
  • the printing roller 12 serves to transport a recording medium to be printed past the heating elements 3, for example in the form of single sheets, during which the recording medium is printed by the heating elements 3.
  • the pressure roller 12 is driven by a motor 13, which is also fastened to the holding frame 10, via a belt drive, which is explained in more detail below with reference to FIG Sheet conveying direction (direction of rotation) driven.
  • a sheet feed channel 15 formed by sheet guide elements for the record carrier to be printed is arranged on the holding frame 10 in front of the point of contact between the printing roller 12 and the recording head 2, in the course of which a drivable sheet feed roller 18 mounted on a lever part 16 about an axis of rotation 17 so as to be drivable is drivable is pivotable against a fixed counter-roller 19, so that both rollers 18 and 19 form a feed for the record carrier to be printed (see also FIG. 3).
  • a sheet feed roller 22 abutting it is mounted such that when the sheet feed roller 18 is pivoted away from the counter roller 19, the sheet feed roller 18 together with the sheet feed roller 22 arrives in front of an outlet opening 23 of the sheet discharge channel 20, so that the printed recording media coming from the sheet ejection channel 20 is between the two rollers 18 and 22 and can be transported further by these (cf. also FIG. 4).
  • a sheet storage compartment 24 with a short sheet support surface 25 and a longer sheet contact surface 26 running approximately at right angles to an axis 27 is held on the lever part 16 for receiving printed single sheets coming from the sheet ejection channel 20.
  • the sheet storage compartment 24 can be folded into the interior of the housing 1 with the holding frame 10 pivoted into the interior of the housing 1 and with the sheet feed roller 18 resting against the counter roller 19 (see FIG. 3), a slot 28 contained in the sheet storage compartment 24 in front of the exit opening 23 of the sheet ejection channel 20 comes to rest and allows passage for the printed recording medium.
  • cover 29 which optionally forms the top of the housing 1 in the closed state (cf. FIG. 3) or in the opened state (cf. FIG. 4) as a sheet supply cassette 30 for receiving a stack 31 of individual sheets to be printed serves.
  • the cover 29 consists of two cover parts 33 and 34 connected to one another via a hinge 32, of which the cover part designated 33 in the region of its hinge-distant cover edge 35 facing the sheet feed roller 18 via a spacer part 36 about an axis of rotation running perpendicular to the plane of the drawing below the top of the housing 37 is pivotally mounted on the holding frame 10.
  • the other cover part 34 has approximately the same length as the housing 1 of the device, whereby - as FIG.
  • Both the sheet feed opening 38 and a sheet ejection opening 39 are each contained in the form of a slot in the cover part designated by 34, of which the sheet feed opening 38 is aligned with the sheet feed channel 15 when the lid 29 is closed and the sheet ejection opening 39 together with the slot 28 in the sheet storage compartment 24 is opposite the outlet opening 23 of the sheet ejection channel 20 (see FIG. 3).
  • the longitudinal edges of the sheet ejection opening 39 are also designed in a cutting-like manner so that they can serve as a tear-off edge for the printed recording medium.
  • the sheet supply cassette 30 becomes a single flat sheet contact surface by unfolding the cover parts 33 and 34 and by latching the cover part designated 33 in the interior of the housing 1 in one Inclination formed.
  • the sheet feed roller 18 is lifted from the counter roller 19 either manually or automatically when the cover part 33 is pivoted via a link guide (not shown here), the cover part 33 with its cover edge 35 facing the sheet feed roller 18 below the sheet feed roller 18 against an approximately vertical position in this cover position to the cover 29 standing sheet stop edge 40 is pivoted.
  • sheet separation corners 41 are held resiliently, which, together with the pivoting of the lever part 16 counter to the spring force, together with a Sheet feed roller 18 can be lifted from the stack 31 of single sheets inserted into the sheet supply cassette 30.
  • two winding spools 43 and 44 are also held on the holding frame 10 in the sheet conveying direction 14 of the printing roller 12 in front of and behind it.
  • the two winding spools 43 and 44 store a heat-sensitive ink ribbon 45 and are held on a common support body 46 parallel to one another.
  • the latter contains corresponding bearing points, of which only the bearing point 47 lying in front of the pressure roller 12 in the sheet conveying direction 14 is visible for the winding spool 43, while the bearing point behind the pressure roller 12 is visible the winding coil 44 already inserted there is covered.
  • the support body 46 could also be used in receiving and aligning elements (not shown in FIGS. 1 to 4) which are arranged fixed to the housing in the bottom region of the housing 1.
  • the holding frame is then brought into the vertical position according to FIG. 2 and the support body with the winding spools carrying the ink ribbon is placed on the receiving and aligning elements.
  • the axial ends of the winding coils 43 and 44 can additionally engage in corresponding bearing points (for example bearing point 47) of the holding frame 10 for the alignment parallel to the pressure roller 12.
  • FIG. 2 shows the pressure roller 12 is driven by the motor 13 via a belt drive 48 with a rotating belt 49 which is guided over a plurality of deflection rollers 50 and a capstan shaft 51.
  • the capstan shaft 51 driven in this way engages via a gear transmission 52 with a gear 53 which is arranged directly next to the bearing point for the winding spool 44 and which serves to drive the winding spool 44 used at this bearing point.
  • a pulley 54 seated on the axis of rotation 17 of the lever part 16 is also driven, which in turn drives the sheet feed roller 18 via a further belt 55.
  • FIG. 3 shows the image recording device in the transport state or in an operating state which enables the manual feeding of a recording medium designated here with 56, wherein the recording medium 56 can be a single sheet or continuous paper.
  • the two winding spools 43 and 44 with the ink ribbon 45 stored by them have already been inserted into the housing 1, in that, as shown in FIG. 2, the holding frame 10 was first folded out of the housing 1, then the winding spool 44 at the storage location provided for it was used, then the winding spool 43 by pivoting the support body 46 in the for them intended bearing 47 was used and finally the holding frame 10 was folded back into the housing 1.
  • the sheet feed roller 18 lies against the counter roller 19; the sheet storage compartment 24 is folded into the housing 1 and lies under the closed cover 29.
  • the housing 1 therefore forms, together with the plugged-in power supply part 9, a compact cuboid-shaped device which is closed on all sides except for the sheet feed opening 38 and the sheet ejection opening 39 and is therefore easy to transport.
  • the beginning of the sheet is inserted into the device through the sheet feed opening 38 up to the feed nip formed by the sheet feed roller 18 and the counter roller 19 resting thereon.
  • the record carrier 56 is fed through the sheet feed channel 15 to the printing roller 12, which is driven in the sheet conveying direction 14 and leads the record carrier 56 past the heating elements 3 of the recording head 2 with the interposition of the heat-sensitive ink ribbon 45.
  • the record carrier 56 is printed as a function of the activation of the heating elements 3 and then transported out of the image recording device through the sheet ejection channel 20, the slot 28 in the sheet storage compartment 24 and the sheet ejection opening 39.
  • the used ribbon 45 is wound on the winding 44 driven by the gear 53 (see FIG. 2).
  • the recording medium 56 can consist of a heat-sensitive recording material, so that the winding spools 43 and 44 with the ink ribbon 45 are not required.
  • the heat-sensitive recording medium can be placed on the supply roll in place of the winding spool 43 in the housing 1 be used.
  • the ink ribbon 45 instead of the ink ribbon 45, to wind up the heat-sensitive recording medium 56 at the storage location provided for the winding spool 44 in order to prevent the printed information from being visible to everyone; in this case the cover 29 can preferably be closed by a lock.
  • FIG. 4 shows the image recording device in an operating state which enables the automatic feeding of single sheets of a sheet stack 31.
  • the winding spools 43 and 44 with the ink ribbon 45 are first inserted into the holding frame 10 as described above for FIG. 3 with reference to FIG. 2.
  • the holding frame 10 is then folded back into the interior of the housing 1.
  • the lid 29 is then unfolded to form the sheet supply cassette 30 by first unfolding the two lid parts 33 and 34 at its right end by lifting the lid part 34 to form a flat sheet contact surface and then bringing them together into the inclined position shown in FIG. 4 and engaging them.
  • the lever part 16 is raised either by hand or in conjunction with the opening of the cover 29 automatically via a slide guide, not shown, so that the cover part 33 with its cover edge 35 facing the sheet feed roller 18 underneath Sheet feed roller 18 comes to lie opposite the sheet stop edge 40.
  • the sheet separation corners 41 are raised at the same time via the driving device 42, so that the stack 31 with the individual sheets can be inserted into the sheet supply cassette 30 with ease.
  • the sheet storage compartment 24 is pivoted against the stack 31, on the uppermost single sheet of which the sheet feed roller 18 rests.
  • the uppermost single sheet is drawn off from the stack 31 via the sheet separation corners 41 as the recording medium 56 and is brought to the printing roller 12 rotating in the sheet conveying direction 14, from which the recording medium 56 with the interposition of the ink ribbon 45 on the heating elements 3 of the recording head 2 passed and printed by this.
  • the printed record carrier 56 is guided by means of the printing roller 12 through the sheet ejection channel 20 into the feed nip between the sheet feed roller 18 and the sheet transport roller 22 and transported further by these two rollers 18 and 22 into the sheet storage compartment 24.
  • FIG. 5 shows an embodiment of the image recording device according to the invention which is slightly modified in comparison to the image recording device shown in FIGS. 1 to 4; the same reference numerals are used for elements that match in FIGS. 1 to 4 and 5.
  • FIG. 5 shows the image recording device in an operating state which enables the automatic feeding of single sheets of the sheet stack 31.
  • the sheet transport roller 22 instead of the sheet transport roller 22, there is a drivable sheet conveying roller 60 in the direction of rotation 14 behind the As seen from the pressure roller 12, it is arranged concentrically with an axis of rotation 61 of a holding part 62 running parallel to the pressure roller in the upper region of the housing.
  • the sheet pressure roller 21 is followed by a sheet execution channel formed from two sheet execution surfaces 63a and 63b;
  • a spring element 65 which is in resilient contact with the sheet conveying roller 60, is arranged on the outlet area 64 of the sheet discharge surface 63a.
  • a sheet storage compartment 67 is fastened to the holding part 62 about an axis 66 which is parallel to the axis of rotation 61 and is hidden by the sheet conveyor roller 60 in FIG.
  • the sheet storage compartment 67 has a slot 68 which, in the closed state of the image recording device, permits the exit of a recording medium guided along the execution surface 63 in the manner explained in conjunction with FIG. 3.
  • a paper sheet 69 previously removed from the stack 31 of individual sheets is passed out of the housing 1 after passing the heating elements 3 by the pressure roller 12 in connection with the sheet pressure roller 21 and the sheet feed roller 60 in connection with the spring element 65 and already touches its upper area a stack 70 of sheets of paper already printed.
  • the rear edge of the paper sheet 69 which is still in contact with the sheet feed roller 18 in accordance with FIG. 5, is finally led out by the sheet conveying roller 60 after the printing roller 12 rotates and comes fully onto the stack 70 with a sheet support surface 71 of the sheet storage compartment 67;
  • the sheet conveyor roller 60 is partially immersed in recesses 72 in the sheet storage compartment 67 or the sheet support surface 71.
  • a hold-down device rotatable about the axis 66, the surface of which runs approximately parallel to the sheet storage compartment 67.
  • FIG. 5 In a further deviation from the embodiment shown in FIGS. 1 to 4, the embodiment according to FIG. 5 instead of the spacer 36 has fixed, Guides running parallel to the side walls connecting the housing walls 6 and 8.
  • a guide 75 hidden by the holding frame 10 is shown in dashed lines.
  • the guide 75 has an approximately part-circular shape with a pitch circle center 76 which lies with the pitch circle center of the guide arranged on the opposite side wall, not shown, on a common straight line running below the top of the housing and parallel to the pressure roller.
  • the guides (z. B. 75) are formed as grooves in the respective side wall of the housing 1, which arise during the manufacturing process of the housing made of plastic.
  • the cover part 33 has, on its area near the pressure roller, lateral extensions which cooperate with the groove-like guides, of which only one extension 77 is visible in FIG. 5; the extension of the cover part 33 cooperating with the guide 75 is covered.
  • the region of the cover part 33 near the printing roller is supported by a right-angled holding surface 78 fixed to the housing.
  • the exemplary embodiment shown in FIG. 5 has sheet separation corners 80 which are arranged laterally on the cover part 33 in the region of the hinge-distant edge 35; Below the sheet stack 31 there is a sheet metal part which presses against the underside of the stack 31 as a result of a spring force in the region of the cover part 33 remote from the hinge.
  • the sheet separation corners 80 are equipped with a lock, the release of which allows the sheet separation corners 80 in the closed state to sink the image recording device into the interior of the housing.
  • the sheet feed roller 18 lies freely rotating inside the housing 1; in this case, a paper sheet to be printed would be inserted through the sheet feed opening 38 with the cover 29 closed, through a sheet feed channel 90 into the contact area with the printing roller 12.

Landscapes

  • Ink Jet (AREA)
  • Pile Receivers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

Sur un modèle connu de dispositif d'impression d'images comprenant une tête d'impression opposée à un cylindre d'impression dans un boîtier du dispositif, la partie supérieure du boîtier comporte un orifice d'entrée pour l'introduction des feuilles à imprimer et un orifice de sortie pour la sortie des feuilles imprimées. Pour permettre de choisir une introduction manuelle ou automatique des feuilles tout en conservant le faible encombrement du modèle connu d'enregistreur d'images, la partie supérieure du boîtier comporte un couvercle relevable (29) qui, lorsqu'il est relevé, peut être maintenu en position inclinée de manière à former une réserve (30) pour les feuilles à imprimer (31); dans le boîtier (1), un cylindre d'introduction des feuilles (18), commandé par un entraînement, est disposé contre un levier (16) de manière à pouvoir pivoter entre deux positions et à se trouver ainsi, soit à l'intérieur du boîtier, soit sur les feuilles contenues dans la réserve (30).

Claims (14)

  1. Dispositif d'impression d'images, comportant une tête d'impression (2) qui se trouve dans un boîtier (1) du dispositif en regard d'un cylindre d'impression (12), comportant une ouverture d'amenée de feuilles (38) qui se trouve dans la partie supérieure du boîtier, de laquelle s'étend un canal d'entrée de feuilles (15) jusqu'au cylindre d'impression (12) et dans laquelle peut être introduit manuellement un support d'impression (56), et comportant un canal d'évacuation de feuilles (20) qui s'étend du cylindre d'impression (12) jusqu'à une ouverture d'évacuation de feuilles (39) se trouvant dans la partie supérieure du boîtier, par laquelle le support d'impression (56) peut être extrait du dispositif,
    caractérisé en ce que la partie supérieure du boîtier comporte un couvercle (29) relevable, qui, dans sa position relevée, peut être fixé dans une position inclinée en formant une cassette de réserve de papier (30) pour des feuilles individuelles (31) à imprimer, et en ce que, dans le boîtier (1), un rouleau d'amenée de feuilles (18), pouvant être entraîné, est monté, de façon rotative, sur une partie de levier (16), de sorte que le rouleau d'amenée de feuilles (18) se trouve au-dessous du couvercle (29) lorsque celui-ci est fermé et repose sur les feuilles individuelles se trouvant dans la cassette de réserve de papier (30) lorsque le couvercle (29) est relevé.
  2. Dispositif d'impression d'images selon la revendication 1,
    caractérisé en ce que le rouleau d'amenée de feuilles (18) repose sur un contre-rouleau (19) dans le canal d'entrée de feuilles (15) lorsque le couvercle (29) est fermé.
  3. Dispositif d'impression d'images selon une des revendications 1 ou 2,
    caractérisé en ce que le couvercle (29) est monté, de façon pivotante, par l'intermédiaire d'un élément d'écartement (36), autour d'un axe (37) s'étendant sous la partie supérieure du boîtier, dans la zone d'un bord (35) de couvercle se trouvant en regard du rouleau d'amenée de feuilles (18) et parallèlement à celui-ci.
  4. Dispositif d'impression d'images selon une des revendications 1 ou 2,
    caractérisé en ce que le couvercle (29) présente, dans la zone de son extrémité proche du rouleau d'amenée de feuilles (18), des prolongements (par exemple 77) qui sont guidés dans des guides (par exemple 75) fixés au boîtier, et en ce que les guides (par exemple 75) sont réalisés à peu près en forme d'arcs de cercle, les centres des arcs de cercle se trouvant sur une droite s'étendant au-dessous de la partie supérieure du boîtier, parallèlement au cylindre d'impression.
  5. Dispositif d'impression d'images selon une des revendications 1 à 4,
    caractérisé en ce qu'un bord de butée pour feuilles (40), servant de butée pour les feuilles individuelles (31) déposées dans la cassette de réserve de papier (30) et comportant des coins (41) pour déliasser les feuilles, est agencé dans le boîtier (1), bord en regard duquel arrive le bord du couvercle (35) dans la position relevée du couvercle (29).
  6. Dispositif d'impression d'images selon la revendication 5,
    caractérisé en ce que les coins (41) pour déliasser les feuilles sont maintenus, de façon élastique, contre le bord de butée pour feuilles (40) et peuvent être relevés, conjointement avec le rouleau d'amenée de feuilles (18) des feuilles individuelles (31) dans la cassette de réserve de papier (30), par un dispositif d'entraînement (42) sur la partie de levier (16) portant le rouleau d'amenée de feuilles (18).
  7. Dispositif d'impression d'images selon une des revendications 1 à 4,
    caractérisé en ce que le couvercle (29) présente au moins une butée pour feuilles dans la zone d'un bord (35) du couvercle se trouvant en regard du rouleau d'amenée de feuilles (18), parallèlement à celui-ci, et présente, dans la zone des extrémités du bord (35) de couvercle, des coins pour déliasser les feuilles pour les feuilles individuelles (31) déposées dans la cassette de réserve de papier (30).
  8. Dispositif d'impression d'images selon une des revendications 2 à 7,
    caractérisé en ce que le couvercle (29) est constitué de deux parties de couvercle (33,34), dont l'une (33) des parties de couvercle est reliée, par l'intermédiaire d'une charnière (32), à l'autre partie de couvercle (34) sur un bord parallèle opposé au côté (35) de couvercle se trouvant en regard du rouleau d'amenée de feuilles (18).
  9. Dispositif d'impression d'images selon une des revendications précédentes,
    caractérisé en ce qu'un récepteur de feuilles (24) qui peut pivoter, pour recevoir les feuilles individuelles imprimées arrivant du canal d'évacuation de feuilles (20), est maintenu sur la partie de levier (16) portant le rouleau d'amenée de feuilles (18), récepteur de feuilles (24) qui, d'une position enfouie sous le couvercle (29) dans le boîtier (1) du dispositif lorsque le couvercle (29) est fermé, peut être relevé dans une position inclinée à peu près parallèle au couvercle (29) lorsque celui-ci est relevé.
  10. Dispositif d'impression d'images selon la revendication 9,
    caractérisé en ce que, en reposant sur les feuilles individuelles (31) contenues dans la cassette de réserve de papier (30), le rouleau d'amenée de feuilles (18) se trouve, conjointement avec un rouleau de transport de feuilles (22), en appui contre celui-ci, dans le canal d'évacuation de feuilles (20), le récepteur de feuilles (24) étant agencé directement derrière le rouleau d'amenée de feuilles (18) dans la direction d'avance des feuilles.
  11. Dispositif d'impression d'images selon la revendication 9,
    caractérisé en ce que, lorsque le rouleau d'amenée de feuilles (18) repose sur les feuilles individuelles (31) contenues dans la cassette de réserve de papier (30), un rouleau de transport de feuilles (60), pouvant être entraîné et agencé de façon concentrique à l'axe de rotation (17) de la partie de levier (16), se trouve entre le cylindre d'impression (12) et le rouleau d'amenée de feuilles (18), et en ce que le récepteur de feuilles (24) est, dans la direction d'avance des feuilles, agencé directement derrière le rouleau de transport de feuilles (60).
  12. Dispositif d'impression d'images selon une des revendications précédentes,
    caractérisé en ce que la tête d'impression (2) est agencée avec un dispositif de commande électrique (5) dans la zone du fond du boîtier (1) du dispositif, et en ce qu'au moins le cylindre d'impression (12) et la partie de levier (16) avec le rouleau d'amenée de feuilles (18) sont maintenus sur un châssis (10) qui est maintenu, de façon pivotante, vers l'extérieur du boîtier (1), vers le haut.
  13. Dispositif d'impression d'images selon la revendication 12,
    caractérisé en ce que le châssis (10) présente, dans la direction d'avance des feuilles (14) du cylindre d'impression (12), devant et derrière celui-ci, deux logements (par exemple 47) pour l'introduction de bobines (43,44) ayant des axes parallèles au cylindre d'impression (12), et en ce que, sur le châssis (10), directement à côté du logement se trouvant derrière le cylindre d'impression (12), une roue dentée (53), en engagement avec l'entraînement à courroie (48), est agencée pour l'entraînement de la bobine (44) introduite dans ce logement.
  14. Dispositif d'impression d'images selon une des revendications 1 à 12,
    caractérisé en ce que des éléments de réception et d'alignement sont prévus dans la zone du fond du boîtier (1), pour la fixation détachable d'un support (46), pour la réception de bobines (43,44) parallèlement au cylindre d'impression.
EP90906128A 1989-04-28 1990-04-26 Dispositif d'impression d'images Expired - Lifetime EP0470094B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP89730113 1989-04-28
EP89730113 1989-04-28
DE3943238 1989-12-22
DE19893943238 DE3943238A1 (de) 1989-12-22 1989-12-22 Bildaufzeichnungsvorrichtung

Publications (2)

Publication Number Publication Date
EP0470094A1 EP0470094A1 (fr) 1992-02-12
EP0470094B1 true EP0470094B1 (fr) 1993-07-28

Family

ID=25888597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90906128A Expired - Lifetime EP0470094B1 (fr) 1989-04-28 1990-04-26 Dispositif d'impression d'images

Country Status (4)

Country Link
EP (1) EP0470094B1 (fr)
JP (1) JPH05504515A (fr)
DE (1) DE59002117D1 (fr)
WO (1) WO1990013433A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1257545B (it) * 1992-06-15 1996-01-30 Olivetti & Co Spa Apparecchiatura facsimile con stampante a getto d'inchiostro.
ATE180719T1 (de) * 1992-09-29 1999-06-15 Canon Kk Apparat zur papierversorgung
CN108315887A (zh) * 2018-04-11 2018-07-24 浙江凌志智能科技有限公司 一种收料机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103861A (en) * 1980-12-19 1982-06-28 Fuji Xerox Co Ltd Printer
JPS5961948U (ja) * 1982-10-18 1984-04-23 株式会社東芝 給紙装置
DE3422505A1 (de) * 1984-06-16 1985-12-19 Olympia Werke Ag, 2940 Wilhelmshaven Verschwenkbare papierstuetze fuer eine bueromaschine
JPS63503132A (ja) * 1986-04-24 1988-11-17 イーストマン・コダック・カンパニー 異なる様式の印刷媒体を扱うことができる印刷装置
JPS6366032A (ja) * 1986-09-08 1988-03-24 Ricoh Co Ltd プリンタの自動給紙装置

Also Published As

Publication number Publication date
DE59002117D1 (de) 1993-09-02
WO1990013433A1 (fr) 1990-11-15
JPH05504515A (ja) 1993-07-15
EP0470094A1 (fr) 1992-02-12

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