US3553715A - Facsimile printer contact assembly - Google Patents

Facsimile printer contact assembly Download PDF

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Publication number
US3553715A
US3553715A US653723A US3553715DA US3553715A US 3553715 A US3553715 A US 3553715A US 653723 A US653723 A US 653723A US 3553715D A US3553715D A US 3553715DA US 3553715 A US3553715 A US 3553715A
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US
United States
Prior art keywords
printer
assembly
contact
printer contact
facsimile
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
US653723A
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English (en)
Inventor
Frans Brouwer
Frank L Sobchak
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.)
Stewart Warner Corp
Original Assignee
Stewart Warner Corp
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 Stewart Warner Corp filed Critical Stewart Warner Corp
Application granted granted Critical
Publication of US3553715A publication Critical patent/US3553715A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction

Definitions

  • a printer contact assembly comprised of an elongated strip with a Contact element secured thereon, and wherein the strip is formed with an aperture adjacent the contact element to prevent fibers of paper from accumulating on the assembly as the contact element is moved across recording paper during print-out of graphic data in facsimile apparatus.
  • the present invention pertains generally to facsimile apparatus for recording on paper graphic data transmitted by wire, and more particularly to improved printer contact means for use in such apparatus.
  • the present invention is concerned with improved printer contact means for facsimile recorder apparatus of the general type described above.
  • This invention contemplates the provision of a printer contact assembly comprised of elongated strip means, a contact element secured to the strip means transversely thereof, and an aperture formed in the strip means adjacent the contact element.
  • the aperture in the strip means serves to prevent the accumulation of fibers of paper on the assembly as the contact element is moved across recording paper lengthwise of the associated printer bar.
  • FIG. l is a view, partly in section and partly in elevation, of the front portion of a facsimile transceiver incorporating the principles of the present inventori;
  • FIG. 2 is a perspective view looking toward the front Patented Jan. 5, 1971 ICC of the scanner assembly of the facsimile transceiver of FIG. l;
  • FIG. 3 is an elevational View, on an enlarged scale, of the printer contact assembly of the present invention and portions of the supporting and cooperating elements of the transceiver associated therewith;
  • FIG. 4 is a plan view, on a further enlarged scale, of the printer contact assembly of FIG. 3;
  • FIG. 5 is a side elevational view of the printer contact assembly of FIG. 4.
  • FIG. 1 there is indicated generally by the reference numeral 10 one type of facsimile apparatus-a facsimile transceiver-in which the printer contact assembly of the present invention may be incorporated.
  • the facsimile transceiver 10 comprises a main frame 12 enclosed by a cover assembly 14 and a top door assembly 16.
  • the copy feed mechanism 18 includes a transverse power driven copy feed roller 22 which draws copy material from a copy feed tray 24, feeds the copy material past a longitudinal scanning slot 26, and discharges the same onto a tray 28.
  • the scanner assembly 20 extends parallel to the copy feed roller 22, and as shown in FIG. 2, includes frame means 30, drive and idler pulley assemblies 32 and 34, a timing belt assembly 36 trained about the pulley assemblies 32 and 34, combined scanner and printer contact units 38 carried by the timing belt assembly 36, and associated synchronizing and electrical transmission means.
  • Each scanner and printed contact unit 38 includes a lower optical scanner carriage assembly 40, and an upper carriage and contact essembly 42 comprised of a carriage block 43 and a printer contact assembly 44 of the present invention to be described hereinafter.
  • the combined scanner and printer contact units 38 are adapted to be connected to other electrical cornponents of the transceiver 10 by means of a ribbon tape 46 and a rotor assembly 48.
  • the rotor assembly 48 includes a commutator assembly 50 and is adapted to be driven from the drive pulley assembly 32 by means of a belt 52.
  • a motor 54 (FIG. l) is arranged to drive a gear 56 at the lower end of the drive pulley assembly 32.
  • the print-out mechanism comprises a transverse power driven combined drive and heat roller assembly 58 and an associated pressure roller 60 which together serve to withdraw moist electrolytic recording paper from a roll 62, move the paper beneath a transverse linear printer bar 64, and issue the paper with reproduced data for viewing.
  • a transverse power driven combined drive and heat roller assembly 58 and an associated pressure roller 60 which together serve to withdraw moist electrolytic recording paper from a roll 62, move the paper beneath a transverse linear printer bar 64, and issue the paper with reproduced data for viewing.
  • Arranged for cooperation with the printer bar 64 are the above described printer contact assemblies 44.
  • each printer contact assembly 44 is comprised of elongated strip means in the form of an elongated strip or leaf spring member 66.
  • a depending generally L-shaped leg portion 68 is struck therefrom whereby to define a generally rectangular aperture 70 which extends lengthwise of the strip 66 centrally thereof and is open at the one end of the strip.
  • the same end of the strip 66 is also formed with semi-cylindrical depressed portions 72 extending transversely thereof in alignment on each side of the aperture 70.
  • a contact element 74 Secured at its ends in the depressed portions 72 is a contact element 74 in the form of a cylindrical pin member.
  • the other end of the printer contact 'block 43 is also, extending through the depending arm portion 7 S.
  • the printer contact strip 66 extends along the top side of the carriage block 43, and is secured to an inclined top surface thereof by means of screws 80 projecting through the slots 76 and into the ⁇ block 43. Also, extending through the depending arm portion 78 is an adjustment screw 82 which is threaded into the adjacent wall portion of the carriage block v43.
  • the free end of the contact assembly 44 is normally biased upwardly by a coil spring 84, and the leg portion 68 is engageable with a lateral limit pin 86.
  • the printer bar 64 (FIG. 1) is disposed vertically above and in the straight line path of travel of the scanner and printer Contact units 38 along one side of the scanner assembly 20. In the receiving mode, the printer bar 64 is biased downwardly and presses the paper from roll 62 downwardly into contact with the printer contact element 74 of the adjacent printer contact unit 38. As the timing belt assembly 36 is rotated, the printer contact units 38 are moved in the aforementioned continuous closed path and the printer contact elements 74 are successively moved lengthwise of the printer barV 64. Printing current is passed through the associated printer Contact elements 74, the recording paper, and the printer bar 64, and iron from the printer bar 64 is deposited on the recording paper and reacts with chemicals therein to produce an image of the transmitted copy. In this manner, copy is reproduced, line-by-line, an elemental area at a time, in synchronism with another transceiver or suitable transmitter in which copy material is being scanned.
  • each printer contact strip 66 accommodates movement of such fibers away from the printer contact element 74 and thereby prevents the accumulation of ibers at the contact element.
  • the printer contact assembly of the present invention is thus self-cleaning. By eliminating the buildup of fibers about the printer contact elements 74, interference by the fibers with proper contact between the contact element and the recording paper is eliminated.
  • a self-cleaning printer contact assembly adapted to be repeatedly drawn along the printer bar to mark recording paper therebetween in accordance with electriccurrent passing therethrough comprising a cantilevered leaf spring strip, an elongated contact element on said strip at its free end and positioned transversely thereof for contacting the recording paper at its mid-portion along the printer bar, and said strip being formed with an aperture adjacent the leading edge of said contact element at its mid-portion to permit paper fibers to pass therethrough.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Recording Measured Values (AREA)
  • Facsimiles In General (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Handling Of Sheets (AREA)
US653723A 1967-07-17 1967-07-17 Facsimile printer contact assembly Expired - Lifetime US3553715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65372367A 1967-07-17 1967-07-17

Publications (1)

Publication Number Publication Date
US3553715A true US3553715A (en) 1971-01-05

Family

ID=24622070

Family Applications (1)

Application Number Title Priority Date Filing Date
US653723A Expired - Lifetime US3553715A (en) 1967-07-17 1967-07-17 Facsimile printer contact assembly

Country Status (6)

Country Link
US (1) US3553715A (en:Method)
BE (1) BE717851A (en:Method)
DE (1) DE1762586A1 (en:Method)
FR (1) FR1576684A (en:Method)
GB (1) GB1222114A (en:Method)
NL (1) NL6807201A (en:Method)

Also Published As

Publication number Publication date
BE717851A (en:Method) 1968-12-16
NL6807201A (en:Method) 1969-01-21
DE1762586A1 (de) 1970-10-01
FR1576684A (en:Method) 1969-08-01
GB1222114A (en) 1971-02-10

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