EP0160053A1 - Agencement de plaque de support pour impression de documents - Google Patents

Agencement de plaque de support pour impression de documents

Info

Publication number
EP0160053A1
EP0160053A1 EP19840903937 EP84903937A EP0160053A1 EP 0160053 A1 EP0160053 A1 EP 0160053A1 EP 19840903937 EP19840903937 EP 19840903937 EP 84903937 A EP84903937 A EP 84903937A EP 0160053 A1 EP0160053 A1 EP 0160053A1
Authority
EP
European Patent Office
Prior art keywords
plate
supporting plate
document
plate arrangement
thick
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Withdrawn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
EP19840903937
Other languages
German (de)
English (en)
Inventor
Michael John Ellis
Anthony Edward Ellis
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0160053A1 publication Critical patent/EP0160053A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B41J11/02—Platens
    • B41J11/06—Flat page-size platens or smaller flat platens having a greater size than line-size platens
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
    • B41J3/283—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers on bank books or the like

Definitions

  • This invention concerns the printing of documents. More particularly, it concerns a supporting arrangement for documents which are to be printed. It is particularly applicable, • but is not restricted to, supporting arrangements for pre-assembled booklets of a standard size (such as passports, savings bank pass books, multi-page driving licences, and the like) upon which information-containing indicia have to be printed in precise locations.
  • a standard size such as passports, savings bank pass books, multi-page driving licences, and the like
  • the required information is applied to the relevant page or pages of the pre-assembled booklet in one of the following ways: a) the information is handwritten; b) the booklet is inserted into a typewriter and the information is typed; c) • the information is handwritten or typed on to a sheet which is stuck on to the page or pages.
  • the supporting arrangement for the document which can be used to position the document accurately in a required location relative to a printing head.
  • the supporting arrangement consists of a flat plate which is positioned in a supporting framework or carriage and which can be moved relative to the framework or carriage in a direction perpendicular to the plane of the plate.
  • the position of the framework relative to the head of a fixed head printer (for example, a dot matrix printing head) can be
  • a document supporting plate arrangement for a document printer comprising a) a rectangular thick plate having a flat front surface and a rear surface; 10 b) a rectangular plate supporting carriage, said carriage having an upper frame member and a lower frame member, a pair of side members and a planar back member; said frame members extending across the carriage, said " 15 planar back member being connected to said frame members and said side members; the dimensions of the thick plate being such that the thick plate is a close but sliding fit between said frame members and the thick 20 plate covers at least part of each said side member; c) a plurality of shafts extending from the back of said thick plate in a direction perpendicular to the plane of said flat
  • each said shaft being positioned within respective guide means mounted on said planar back member; d) biasing means acting on the rear surface "of said thick plate to bias the thick plate
  • the biasing means is a plurality of tension springs connected to both the planar back member and the rear surface of the thick plate
  • the means for applying a force to the thick plate is a solenoid-controlled piston
  • the guide means are linear bearings.
  • the lower frame member will extend further from the planar back member than the upper frame member (to provide a ledge upon which a document can be supported), (ii) the flat front surface of the thick plate will be coated with rubber or a similar composition, (iii) the carriage will be provided with at least one vertically-extending rack, so that it can be positioned relative to the printer head using a motor-driven pinion in co-operation with the or each rack, and (iv) a pair of flat, elongate plates will be fixedly located above and below the printing head, to hold the document being printed at precisely the required distance from the front of the printing head.
  • Figure 1 is a perspective sketch, partly schematic, showing the thick plate and its supporting carriage, with the thick plate removed from the carriage, and an optical sensing arrangement.
  • Figure 2 is a side view, partly schematic, of the document supporting arrangement and the printing head of a document printer.
  • Figure 3 is a vertical sectional view through the centre of the thick plate and its supporting carriage, when positioned ready for printing a document.
  • Figure 4 is a perspective view showing the bottom 5 edge and the underside of the thick plate featured in Figures 1 and 3.
  • the plate 10 is approximately 6.5 mm thick, and is made of aluminium. Other plate thicknesses can be used, and the plate can be fabricated from other materials.
  • the plate to withstand, without distortion, an impact from a printing head that is applying characters to a document held against the front face 11 of the plate.
  • the front face of the plate must be flat to within about 0.05 mm. To prevent the possibility of a document sliding on the front face
  • the supporting carriage 20 has an upper frame member
  • VA IPO * " PW ⁇ rAATT'l nO « " 8 could have been produced separately and connected together in the illustrated configuration.
  • a planar back member of the carriage, in the form of a steel plate 24, is rigidly attached to the frame members and to the side members.
  • Affixed to the steel plate 24 are three guides 25, which receive correspondingly located shafts 15 affixed to the rear face of the thick plate 10.
  • the shafts 15 and guides 25 in the apparatus constructed by the present inventors are linear bearings. These linear bearings ensure that movement of the plate 10 away from the carriage can only occur in a direction that is perpendicular to the plane of plate 24 (and also perpendicular to the plane of the front surface 11 of plate 10) .
  • Such movement of plate 10 is effected by a piston 30 which is located within an aperture 26 in plate 24.
  • piston 30 When piston 30 is moved towards plate 10, the front surface of piston 30 bears against the inside surface of a dished member 16 mounted on the rear of plate 10, to apply a force to move plate 10 away from the carriage 20.
  • Movement of the plate is constrained by a pair of tension springs 27 which are connected to both the rear of plate 10 and the front of plate 24. In the absence of the application of a force upon plate 10 by piston 30, the tension springs 27 bias the plate 10 into a position where the side regions of the rear of plate 10 are held in contact with the front surfaces of the side -members
  • tension springs 27 are connected to the plate 10 by being affixed to spring mounting points 14 at each end of a support plate 17 that is held firmly against the rear surface 13 of plate 10 by the dished member 16
  • the piston 30 had a diameter of about
  • the dished member 16 was formed by machining a dish shape into the head of a stud or bolt. The threaded shaft of the stud or bolt was then passed through an
  • the movement of piston 30 is controlled by a solenoid which is mounted in a solenoid housing 31, which is positioned 20 above the upper frame member 21 of carriage 20.
  • a linkage 36 connects the solenoid to piston 30.
  • the linkage 36 may be any one of many alternative suitable forms of linkage known to practising engineers.
  • Such alternatives include hydraulically-controlled pistons and direct mechanical linkages to the rear of plate 10.
  • the distance d. is greater than
  • distance d 3 is greater than distance d 2 to provide a ledge 28 to support a document to be printed.
  • the forward-most edge of frame member 22 is turned up to provide a lip 29 (shown exaggerated in the drawings) which prevents a document 33 from slipping off ledge 28 before or after the document has been printed.
  • a pair of racks 34 are mounted, one at each side, on the rear of steel plate 24.
  • Each rack 34 has an associated pinion 35.
  • the pinions 35 are mounted coaxially and are driven by a common electric motor (not shown).
  • Limit switches actuated by the upper and lower frame members 21 and 22, ensure that the movement of the carriage 20 is such that the pinions 35 do not reach the end of the racks 34.
  • Guides ensure that the movement of carriage 20 is vertical.
  • the electric motor driving the pinions may.be controlled by a microprocessor which is programmed so that once a new document has been positioned on ledge 28, the height of the carriage is adjusted so that each printing location becomes adjacent the printing head in turn. In this way, the required printing can be rapidly effected, and a large number of the documents can be printed upon in a short time period.
  • the thick plate 10 of the unit produced by the present inventors is provided with a pair of grooves 18 in its lower edge and a pair of slots 19 are milled into the upper surface of lower frame member 22.
  • the grooves 18 and the slots 19 are in corresponding positions on the plate 10 and frame member 22, respectively.
  • Two generally U-shaped brackets 50 are provided, each with an optical source 51 mounted on the top of one vertical arm of the bracket and an optical sensor 52 mounted on the other vertical arm of the bracket.
  • the optical source 51 was an off-the-shelf infra-red emitter having a generally cylindrical form, being about 6 mm tall and about 3 mm in diameter
  • the optical sensor 52 was an infra-red sensor having similar shape and dimensions, which was also purchased as an off-the-shelf item.
  • the connecting (lower) arm 53 of each bracket 50 was dimensioned to fit within a slot 19 with the optical source 51 adjacent to, but spaced from, the steel plate
  • the optical source need not be an infra-red source, and the sensor 52 may be any suitable photo-sensitive detector for use with the selected optical source.
  • the present invention is adapted for the printing of any type of document. It is particularly useful (as noted already) for the printing of machine-readable characters on documents such as passports, savings pass books, and identity cards.

Landscapes

  • Common Mechanisms (AREA)

Abstract

Un agencement de plaque de support de documents est destiné au positionnement précis d'un document (33) par rapport à une tête imprimante (40). Cet agencement possède une plaque rectangulaire épaisse (10) et un chariot (20) qui supporte et commande la position de cette plaque. Un système de guidage (15, 25) assure un mouvement horizontal précis de la plaque épaisse (10) entre une position le plus en arrière en contact avec des organes latéraux (23) du chariot (20) et une position le plus en avant où le document (33) est en contact avec des plaques s'étendant horizontalement (41) adjacentes à la tête imprimante (40). Des moyens de sollicitation (27) maintiennent la plaque épaisse (10) en contact avec les organes latéraux (23) lorsque aucune force n'est appliquée sur la plaque épaisse (10) pour la déplacer vers la tête imprimante (40). Un piston commandé par solénoïde (30) peut appliquer une telle force sur la plaque épaisse (10). Un agencement de détection optique (50, 51, 52) peut détecter la présence d'un document à imprimer. L'ajustement vertical de l'agencement de plaque de support peut se faire par crémaillère (34) et pignon (35).
EP19840903937 1983-10-28 1984-10-26 Agencement de plaque de support pour impression de documents Withdrawn EP0160053A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2096/83 1983-10-28
AU209683 1983-10-28

Publications (1)

Publication Number Publication Date
EP0160053A1 true EP0160053A1 (fr) 1985-11-06

Family

ID=3692611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840903937 Withdrawn EP0160053A1 (fr) 1983-10-28 1984-10-26 Agencement de plaque de support pour impression de documents

Country Status (2)

Country Link
EP (1) EP0160053A1 (fr)
WO (1) WO1985001915A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8604006D0 (en) * 1986-02-18 1986-03-26 Halo Retail Systems Ltd Information recording devices
DE19740396A1 (de) 1997-09-05 1999-03-11 Francotyp Postalia Gmbh Druckeinrichtung und Verfahren für den Druck auf einen Druckträger
DE19740395A1 (de) * 1997-09-05 1999-03-11 Francotyp Postalia Gmbh Vorrichtung zum Transport und zum Bedrucken von Druckträgern

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942622A (en) * 1974-11-06 1976-03-09 Victor Comptometer Corporation Document stop and position indicator mechanism
US4029010A (en) * 1975-01-31 1977-06-14 Pitney-Bowes, Inc. Electromagnetic printing device
US4027591A (en) * 1975-03-26 1977-06-07 Hans Gubela Apparatus for positioning a pad or book of sheets on the work table of printing apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8501915A1 *

Also Published As

Publication number Publication date
WO1985001915A1 (fr) 1985-05-09

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19851001