EP0157735A2 - Device for feeding sheets to the platen of an office machine - Google Patents

Device for feeding sheets to the platen of an office machine Download PDF

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Publication number
EP0157735A2
EP0157735A2 EP85810099A EP85810099A EP0157735A2 EP 0157735 A2 EP0157735 A2 EP 0157735A2 EP 85810099 A EP85810099 A EP 85810099A EP 85810099 A EP85810099 A EP 85810099A EP 0157735 A2 EP0157735 A2 EP 0157735A2
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EP
European Patent Office
Prior art keywords
characterized
roller
device according
gear element
pawl
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.)
Withdrawn
Application number
EP85810099A
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German (de)
French (fr)
Other versions
EP0157735A3 (en
Inventor
Kurt Rünzi
Original Assignee
Kurt Rünzi
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.)
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Publication date
Priority to CH1665/84 priority Critical
Priority to CH166584 priority
Application filed by Kurt Rünzi filed Critical Kurt Rünzi
Publication of EP0157735A2 publication Critical patent/EP0157735A2/en
Publication of EP0157735A3 publication Critical patent/EP0157735A3/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section

Abstract

The optional pulling of single sheets from two stacks (2, 3) is carried out by separating rollers (7, 8), each of which abuts against the top sheet by friction. The conveyed sheets are fed to the platen roller (10) of a typewriter and then placed on a depositing stack (4). The choice as to whether a sheet should be pulled from one or the other stack (2, 3) is made by different angles of rotation when the platen roller is turned back - that is, counter to the paper feed direction. As a result, pawls and ratchet wheels of two clutches come into engagement. This makes it possible to select e.g. feed a letterhead or a neutral sheet of paper.

Description

  • A device according to the preamble of claim 1 is known from CH-A-638 436. In this known device, the separating roller is driven by a gear from the platen roller. To feed a sheet, the platen must first be driven backwards by a certain angle, then forwards by a small amount, then backwards again, until the detected sheet enters the gap between the platen and a first pressure roller. The sheet can then be drawn in by turning the platen roller forward. The process described requires a relatively complex ratchet mechanism and complex programming of the office machine.
  • The object of the invention is to eliminate these disadvantages. This object is achieved with the characterizing features of claim 1.
  • In the drawing, an embodiment of the subject of the invention is shown. Show it:
    • 1 shows a schematic cross section through the device,
    • 2 is a perspective, exploded view of the device with intermediate frame and typewriter,
    • 3 is a side view of the device,
    • 4 shows a section along the line IV-IV in FIG. 3,
    • 5 is a schematic representation of the transmission in the starting position,
    • 6 shows a schematic illustration according to FIG. 5, but with the right wheel coupled,
    • 7 shows a schematic illustration according to FIG. 5 when the right wheel is carried along,
    • 8 is a schematic side view of a second embodiment,
    • 9 shows a section along the line IX-IX in FIG. 8,
    • Fig. 10 is a section along the line XX in Fig. 9, and
    • Fig. 11 and Fig. 12 is a schematic representation of the paper feed on the platen.
  • The device serves to selectively feed sheets from a first supply stack 2 or a second supply stack 3 to a writing or printing office machine 19 - for example a typewriter. These sheets are then passed around the platen roller 10 and leave it to be subsequently deposited on a depositing stack 4. The two supply stacks 2, 3 each lie on a pivotable base 5, each of which is loaded by a spring 6. The two storage stacks 2, 3 together with the pivotable base 5 are each held by laterally adjustable, V-shaped supports 21, 23. The top sheet of each of the two supply stacks 2, 3 lies against a drivable separating roller 7, 8 in a frictional manner. In the area of the lowermost edge of the supply stack there is a corner separator 9 known per se, which has the shape of a short projecting tab at the corners and which has the effect that when the top sheet is fed this must jump out over this corner and thereby one Double feeding of sheets is avoided. In order to be able to feed single sheets to be typed in by hand to the typewriter, a funnel 11 formed by guide plates 16 is provided. The separating rollers 7, 8, which are made of soft rubber at least on the casing, are each seated on a shaft 12, 14 with the interposition of one overrunning freewheel 13, in the sense that these separating rollers 7, 8 can twist when the top sheet is pulled off, without simultaneously driving the drive shafts 12, 14 positively. The rotational movement of these drive shafts 12, 14 is derived from the platen roller 10, on the axis of which a gear 18 is seated, which drives an additional gear 22 via an idler gear 20 and which is seated on a shaft 24. On this in turn, another gear 26 is rigidly attached. On the same shaft 24 there are also two rotationally fixed drive rollers 28 which convey the sheets output by the platen roller into the storage compartment 4. The intermediate wheel 20, the gear wheel 22 and the shaft 24 are located on an intermediate frame 30 which can be placed as a separable structural unit on the axis of the typewriter 19 and removed from it again. This intermediate frame enables easy adaptation to different makes of typewriters (printers). When the intermediate frame 30 is in place, the intermediate gear 20 engages with the gear 18 seated on the axis of the platen roller 10. On the other hand, the assembly 15 according to FIGS. 1 and 2 can be detachably placed on the intermediate frame 30, the gear wheel 26 of the intermediate frame 30 being coupled to the drive wheel 32. Both in the side plates of the intermediate frame 30 and in the side plates 25 of the structural unit 15 to be placed thereon, there are recesses 34 available, which allow the relevant shaft to be gripped under.
  • The drive gear 32 drives, via a clutch 45, 80 and a toothed belt 36, a first gear 38 rotatably mounted on the shaft 14, with which a second gear 40 of the same size, rotatably mounted on the shaft 12, engages. A ratchet wheel 42, 44 is rigidly connected to each of the shafts 12, 14, in which a ratchet 46, 48 can engage. These pawls 46, 48 are each pivotally mounted on the gear 38, 40 and spring-loaded in the direction of the associated ratchet wheel 42, 44. On the side wall 25 a deflection pawl 55, 56 is pivotally mounted, which are intended to cooperate with the pawls 46 and 48, respectively. These deflection pawls 55, 56 are loaded by springs so that they each abut against a stop 58, 60 fixed to the housing. A ratchet wheel 50, 52 is connected to the ratchet wheels 42, 44 in a rotationally fixed manner, each of which is provided on the circumference with a recess 62, 64 into which an armature 66 engages. This essentially T-shaped anchor is designed such that its upper middle part 70 can be pivoted relative to the transverse locking part 68 about a pin 73 protruding through an elongated hole 69 in the central part and can also be moved in the longitudinal direction to the central part 70 in the elongated hole is. At the ends of the central part 70 there are rollers 71, 72, which each engage in a recess 62, 64 of these locking wheels 50, 52. The middle part 70 is pulled down by springs 67, so that it can optionally pivot about one of the rollers 71, 72. The locking part 68 is loaded by a further spring 75 in the direction of the clutch 45, 80. The lower end of the locking part 68 of this armature 66 lies against an eccentric 74 which actuates the coupling 45, 80.
  • 4, the drive wheel 32 is connected to the belt roller 37 via a spring band coupling 80. This spring band coupling 80 is of known design and contains a helical spring 82 which engages with one end 83 in the eccentric 74. In one direction of rotation it acts as a freewheel and in the other direction of rotation as a friction clutch, which non-positively connects the drive wheel 32 to the belt roller 37, as long as the eccentric 74 is not stopped by a shoulder 76 against the locking part 68. Between the bearing pin 31 and the drive wheel 32 there is also an overrunning freewheel 45 which locks in the opposite direction to the spring band coupling 80.
  • The operation of this gearbox is as follows:
    • When the platen roller 10 rotates in the paper feed direction tion - ie in the direction of arrow V in Fig. 1 - this rotary motion is transmitted to the gears 18, 20 and 32. This rotary movement corresponds to a rotary movement which is identical to the direction of rotation A shown in FIG. 5. Since the armature 66 abuts the eccentric 74, the spring band coupling is switched off, so that the belt roller 37 stands still.
  • If a sheet is now to be taken from one of the two supply stacks 2 or 3, this process is initiated by turning the platen roller 10 backwards after the previously described sheet has entered the storage compartment 4. The choice as to whether a sheet should be taken from the supply stack 2 or 3 is determined by different angles of rotation when turning backwards - that is, counter to the paper feed direction. For this purpose, the typewriter or the like. programmed accordingly. 5 shows the starting position, where A represents the paper feed direction.
  • As soon as the platen roller 10 is rotated in the reverse direction - that is, counter to the paper feed direction - the drive wheel 32 moves in the direction of arrow B (FIG. 6). The gear 37, which drives the toothed belt 36, is taken along via the overrunning freewheel 45. The timing belt 36 drives the upper pulley 39 loosely seated on the shaft 14, which is rigidly connected to the gear 38. A pivotable, spring-loaded pawl 46 is mounted on this gear 38. During the rotational movement in the direction of arrow B, the pawl 46 passes the spring-loaded deflection pawl 55 unhindered. The gear 38 rotating in the direction of the arrow C engages in the gear 40 of the same size, which thereby rotates in the direction of the arrow D. As a result of this rotary movement, the pawl 48 resiliently resting against the ratchet wheel 44 comes to rest against the shoulder 86. If the direction of rotation is now reversed, that is to say a sheet is to be drawn in in the paper feed direction in accordance with arrow V in FIG. 1, the rotation now causes the ratchet wheel 44 together with the singling roller 7 seated on the shaft 12 in the direction of the arrow E (FIG. 7) is twisted. As a result, the armature 66 is pivoted about the roller 71, which acts as a fulcrum, because the roller 72 comes out of the recess 62, since the ratchet wheel 50 rotates together with the gear wheel 40. As a result of this lifting of the armature 66, its locking part 68 is disengaged from the eccentric 74. Thus, the singling roller 7 seated on the shaft 12 is now driven via the spring band coupling 80 and conveys a sheet in the direction against the platen roller 10. As shown in FIG. 7 it will the pawl 46 is raised above the shoulder 84 by the deflector pawl 55, so that the shaft 14 is not driven. After a full revolution of the ratchet wheel 50, the roller 72 again enters the recess 62, as a result of which the armature 66 assumes its position shown in FIG. 5. At the same time, the pawl 48 is raised over the shoulder 86 by contact with the deflector pawl 56, so that the drive of the shaft 12 is interrupted. When turning further, the locking part 68 comes to bear against the eccentric 74, whereby the non-positive connection of the spring band coupling 80 is interrupted. This sheet feed movement is large enough for the sheet to be gripped by the platen roller 10, whereupon it is drawn further line by line by the latter. The separating roller rotates without positive drive of the shaft 12 via the overrunning freewheel 13.
  • If, on the other hand, the other separating roller 8 is to be driven, this is brought about by the fact that the platen roller 10 is turned back against the paper feed direction by a smaller angle of rotation. Starting from the position of the gear parts according to FIG. 5, by turning back the platen roller 10, the drive wheel 32 and thus the toothed belt 36 and the upper belt wheel 39 together with gear 38 driven against the direction of arrow A. As a result, the pawl 46 seated on the gear 38 also rotates. The ratchet wheel 42 and with this the ratchet wheel 52 remain stationary for the time being. As soon as the pawl 46, which is pressed against the center of the gear 38 by spring loading, reaches the region of the shoulder 84, this pawl 46 engages. The backward rotation is now interrupted. Any small further movement only has the effect that the deflecting pawl 55 is raised somewhat, which merely increases the pressing force of the pawl 46 against the ratchet wheel 42. If the platen roller 10 is subsequently rotated again in the paper feed direction, this has the effect that the pawl 46 also rotates the ratchet wheel 42 and, as a result, drives the separating roller 8 seated on the shaft 14. Since the locking wheel 52 is also driven, the roller 71 of the armature 66 moves out of the recess 64 of the locking wheel 52, as a result of which the locking part 68 of the armature 66 disengages from the eccentric 74. As soon as a full revolution is carried out, the roller 71 again falls into the recess 64 of the ratchet wheel 52 and, as a result, the eccentric 74 is stopped by the locking part 68 and the spring band coupling 80 is released. In the meantime, however, the sheet to be inscribed has entered the nip of the platen and is then captured and transported by them. Since the separating rollers are provided with an overrunning freewheel, the shaft 14 need not be driven further positively.
  • The V-shaped arrangement of the two supply stacks 2, 3 makes it possible for the path to the feed gap at the platen roller 10 to be of the same length, which simplifies the control for the optional sheet feeder.
  • The unlockable spring band coupling 80 in cooperation with the armature 66 ensures that the two gear wheels 38, 40 are always in the same position at the start of a drawing-in process, regardless of the previously made angle of rotation of the platen roller 10 in the paper drawing direction V.
  • In the exemplary embodiment described, two supply stacks 2, 3 are provided. However, the invention is also applicable to devices with a single stack of supplies. For this purpose, for example, the stack 2 with the associated separating roller 7, the shaft 12, the gear 40, the ratchet wheel 44, the ratchet 4.8, the deflector pawl 56 and the ratchet wheel 50 could be omitted, the central part 70 being pivotally attached to the side wall 25 at the location of the roller 72 would.
  • If three storage stacks are to be provided, e.g. one stack for paper with company head, one for empty paper and another stack for envelopes to be addressed, then a further separating roller with gear, ratchet wheel and ratchet wheel can be arranged for the third supply stack, with 70 e.g. a balance beam arrangement could be provided so that the locking part 68 can be raised by all three locking wheels.
  • FIGS. 8-10 show a further exemplary embodiment with three storage stacks 3a, 3b, 3c, this device again consisting of an intermediate frame and an attachable unit. The intermediate frame is designed analogously, as in the first embodiment. For the sake of clarity, only the shaft 24 and the gear 26 are shown.
  • With the gear 26 in turn meshes the drive wheel 32, which is connected via the coupling 80, 45 'to a gear 37', which corresponds to the belt roller 37 in the first embodiment. The overrunning freewheel is designed here as a spring band coupling 45 'and locks against rotation in the opposite direction to the paper feed direction. The second spring band coupling 80 is the same as in the first exemplary embodiment and locks in the paper feed direction as long as it is not unlocked by stopping the eccentric 74.
  • The three pawl carriers 38a, b, c are arranged coaxially to one another and rigidly connected to one another via a sleeve 51. The pawl carrier 38a is toothed on the outside and meshes with the gear 37 '. The sleeve 51 is rotatable on a bolt 49 fixed to the housing. Each ratchet carrier 38a, b, c is assigned a ratchet wheel 42a, b, c, a ratchet wheel 52a, b, c rigidly connected thereto and a gearwheel 47a, b, c. These gears 47a, b, c mesh with a further gear 53a, b, c. The gear wheels 53a and 53b are rigidly connected to the associated shafts 14a, 14b of the separating rollers 8a, 8b, the separating rollers 8a, b in turn having overrunning freewheels 13a, b. The gear 53c is an idler gear that drives another gear 54 connected to the shaft 14c. The third separating roller 8c is mounted on the shaft 14c.
  • The supply stacks 3a, 3b assigned to the separating rollers 8a, 8b are arranged one above the other, while the third supply stack 3c is opposite, as shown schematically in FIG. 8. In Fig. 8 the armature 66 and the side wall 25 are omitted for a better overview.
  • The three deflector pawls 55a, b and c are pivotally mounted on a common pin 57 fixed to the housing and are pressed against a common stop pin 58 fixed to the housing by a spring (not shown). The three associated pawls 46a, b, c, each pivotably mounted on one of the pawl carriers 38a, b, c, are offset at an angle to one another in the basic position (FIG. 8), so that the required angle of rotation of the platen roller for latching the pawls 46a, b , c in the associated ratchet wheels 42, a, b, c for the three ratchet wheels 42a, b, c is different. In Fig. 9, the pivot axes of the pawls 46a, b, c are rotated into the drawing plane for the illustration.
  • The armature 66 here consists of a longitudinally displaceably mounted locking part 68, which is loaded by a spring 75 in the direction of the eccentric 74 and to which a pin 73 is fastened. Each of the locking wheels 52a, b, c is assigned a pivot lever 70a, b, c, which are mounted at one end on a common pin 77 fixed to the housing. At the other end they each carry a roller 71a, b, c which rolls on the associated ratchet wheel 52a, b, c. The pivot levers 70a, b, c are loaded by springs 67a, b, c. They each have an elongated hole 69a, b, c, in which the pin 73 engages. The locking part 68 is thus raised as soon as one of the three locking wheels 52a, b, c is rotated and the associated roller 71a, b, c is thus lifted out of the recess 64a, b, c.
  • The operation of the device according to FIGS. 8 to 10 is analogous to that according to FIGS. 1 to 7, the forward direction of rotation A of the drive wheel 32 being reversed. When turning further in the forward direction of rotation A, the shoulder 76 of the eccentric 74 lies against the locking part 68, so that the spring band coupling 80 is unlocked and the gearwheel 37 'does not rotate. The device is in the basic position shown in FIG. 8. If the platen roller is now rotated backwards, the pawl 46a first reaches the position shown in FIG. 10, in which it engages in the shoulder 84a of the ratchet wheel 42a. If the platen roller is then rotated forwards, the ratchet wheel 42a and thus the gears 47a, 53a, the shaft 14a and the separating roller 8a also rotate, as in the first exemplary embodiment, so that a sheet is fed from the supply stack 3a to the platen roller. The swivel arm 70a is raised by the ratchet wheel 52a and takes the locking part 68 with it. This movement is interrupted after one turn of the pawl carrier 38a when the pawl 46a hits the deflector pawl 55a. At the same time, the roller 71a snaps into the recess 64a, so that when the gear 32 continues to rotate, the shoulder 76 counteracts the locking part 68 runs up and the basic position is reached again.
  • The other two separating rollers 8b, 8c are driven by a correspondingly larger turning angle.
  • In the third embodiment, it is easily possible, depending on the customer's request, to omit the third supply stack 3c with associated separating roller 8c, shaft 14c, gearwheels 54, 53c, 47c and ratchet carrier 38c, ratchet wheel 42c, ratchet wheel 52c and swivel arm 70c, that is to say with one Basic version to produce devices with different numbers of stockpiles. This simplifies production and storage.
  • After the sheet to be inserted has been gripped between the platen roller 10 and the first pressure roller 17 (FIG. 1), that is to say the associated separating roller 7, 8 has made a full revolution, the sheet projects a certain length 88 beyond the pressure roller 17 (FIG. 11). In order to increase the registration accuracy, it is now possible to first turn back the platen by an amount greater than the length 88 against the paper feed direction V, so that the sheet backwards out of the gap between the platen 10 and Pressure roller 17 emerges (Fig. 12) and only then finally pull in the sheet. Because the front edge of the sheet is then recorded at a precisely defined point on the circumference of the platen roller, high registration accuracy can be achieved without great demands on the precision of the device.

Claims (14)

1. Device for feeding single sheets from a supply stack (2, 3) to the platen (10) of a writing office machine (19), with a separating roller (7, 8) frictionally engaging on the top sheet of the supply stack (2, 3) an overrunning freewheel (13) can be driven in the paper feed direction by a gear mechanism comprising a mechanical switching element (42, 46; 44, 48), the gear mechanism containing a gear element (20) for slip-free connection to the platen roller (10), characterized in that the switching elements (42,46; 44,48) are designed in such a way that when the gear element (20) rotates by a predetermined first angle of rotation against the paper feed direction, and when the gear element (20) is subsequently rotated in the paper feed direction, the separating roller (7,8) Drive over a limited second angle of rotation of the gear element (20).
2. Device according to claim 1, characterized in that the switching elements (42, 46) have a ratchet wheel (42) connected to the overrunning freewheel (13) in a rotationally fixed manner, with a shoulder (84) and a coaxial with the ratchet wheel (42) and rotatable relative to the latter, with the gear element (20) drive-connected pawl carrier (38) with a spring-loaded pawl (46), which engages in the shoulder (84) when the gear element rotates backwards, engages with the ratchet wheel (42) in the subsequent forward rotation, and after the second rotation angle has been covered, is raised over the shoulder (84) by a deflection element (55).
3. Apparatus according to claim 2, characterized in that the drive connection between the gear element (20) and the pawl carrier (38) comprises a coupling (45, 80) which is rigid against the paper feed direction and unlockable in the paper feed direction by a spring-loaded armature (66) which can be raised against the spring load by means of a detent disk (52) which is connected to the ratchet wheel (42) in a rotationally fixed manner and has a recess (64).
4. The device according to claim 3, characterized in that the coupling (45, 80) comprises a freewheel (45) and a spring band coupling (80) which can be unlocked via an eccentric (74) cooperating with the armature (66).
5. Device according to one of claims 1 to 4, characterized in that in addition to the first stack (3), a second stack (2) with associated second separating roller (7) and second overtaking freewheel (13) is arranged, and that the first separating roller (8) assigned first rotation angle of the gear element (20) is different from the first rotation angle of the gear element (20) assigned to the second separating roller (7).
6. Device according to claims 3 and 5, characterized in that the first pawl carrier (38) assigned to the first singling roller (8) is connected in a rotationally fixed manner to a second pawl carrier (40) assigned to the second singling roller (7), that with an associated second Ratchet wheel (44) a second locking disc (54) is rotatably connected to a second recess (62), and that the armature (66) can be raised by each of the two locking discs (52, 54).
7. The device according to claims 4 and 6, characterized in that the armature (66) comprises a longitudinally movable locking part (68) acting on the eccentric (74) and a central part (70) which can be pivoted and is longitudinally displaceable relative to the locking part (68), and that the middle part (70) is pressed by a spring (67) to bear against the two locking disks (52, 54).
8. Device according to one of claims 5 to 7, characterized in that the two supply stacks (2, 3) are arranged in a V-shape with respect to one another and the sheets drawn off from them each have the same path to the platen roller (10).
9. The device according to claim 2, characterized in that it comprises a plurality of stacks (3a, b, c), each with an assigned separating roller (8a, b, c) and overrunning freewheel (13a, b, c), the separating rollers (8a , b, c) assigned first rotation angle of the gear element (29) are all different from one another, that the pawl carriers (38a, b, c) assigned to the separating rollers (8a, b, c) are arranged coaxially to one another and are rigidly connected to one another so that the Pawl carriers (38a, b, c) assigned ratchet wheels (42a, b, c) with respect to the associated pawl carriers (38a, b, c) are rotatably mounted, and that each of the pawl supports (38a, b, c) is assigned a deflector (55a, b, c).
10. Device according to claims 3 and 9, characterized in that with each of the ratchet wheels (42a, b, c) a respective locking disc (52a, b, c) with a recess (64a, b, c) is connected in a rotationally fixed manner, and that the armature (66) can be raised by each of the locking disks (52a, b, c).
11. The device according to claim 10, characterized in that the armature (66) one on the eccentric (74) acting, longitudinally movable locking part (68) and per locking disc (52a, b, c) one relative to the locking part (68) displaceable to a limited extent Includes pivoting lever (70a, b, c), and that the pivoting lever (70a, b, c) is pressed by a spring (67a, b, c) for abutment against the associated locking disc (52a, b, c).
12. Device according to one of claims 1 to 11, characterized in that it is designed to be removable from the office machine (19) and from an intermediate frame (30) having the gear element (20) and a structural unit (15) removable from the intermediate frame (30) consists.
13. A method of operating a device according to one of claims 1 to 12, characterized in that for the retraction of a sheet, the gear element (29) is rotated by the first angle of rotation against the paper feed direction, then rotated in the paper feed direction until the sheet is between the platen (10) and a first pressure roller (17) by a predetermined length
(88) protrudes that the platen (10) is then rotated back by a distance that is greater than the predetermined length, and that the sheet is finally drawn in by rotating the platen (10) forward.
EP85810099A 1984-04-02 1985-03-07 Device for feeding sheets to the platen of an office machine Withdrawn EP0157735A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1665/84 1984-04-02
CH166584 1984-04-02

Publications (2)

Publication Number Publication Date
EP0157735A2 true EP0157735A2 (en) 1985-10-09
EP0157735A3 EP0157735A3 (en) 1988-09-14

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Application Number Title Priority Date Filing Date
EP85810099A Withdrawn EP0157735A3 (en) 1984-04-02 1985-03-07 Device for feeding sheets to the platen of an office machine

Country Status (5)

Country Link
US (3) US4620809A (en)
EP (1) EP0157735A3 (en)
JP (1) JPS60224564A (en)
BR (1) BR8501410A (en)
CA (1) CA1231108A (en)

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Also Published As

Publication number Publication date
BR8501410A (en) 1985-11-26
US4620809A (en) 1986-11-04
US4687362A (en) 1987-08-18
CA1231108A1 (en)
CA1231108A (en) 1988-01-05
JPS60224564A (en) 1985-11-08
US4664546A (en) 1987-05-12
EP0157735A3 (en) 1988-09-14

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