(19)
(11) EP 0 398 556 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.11.1994 Bulletin 1994/46

(43) Date of publication A2:
22.11.1990 Bulletin 1990/47

(21) Application number: 90304826.2

(22) Date of filing: 03.05.1990
(51) International Patent Classification (IPC)5: B41J 11/00, B41J 15/04, B41J 11/26, B41J 13/18
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 09.05.1989 US 349361

(71) Applicant: TEXAS INSTRUMENTS INCORPORATED
Dallas Texas 75265 (US)

(72) Inventors:
  • Grimm, Thomas R.
    Troy, Texas 76579 (US)
  • Oliver, Luther L.
    Austin, Texas 78729 (US)
  • Treszoks, Erik A.
    Temple, Texas 76504 (US)
  • Vinson, Sam
    Temple, Texas 76502 (US)
  • Rodriquez, Jose I.
    Garland, Texas 75040 (US)
  • Arndt, Donald J.
    Georgetown, Texas (US)
  • Rendon, Mark A.
    Belton, Texas 76513 (US)
  • Dodson, Dan
    Temple, Texas 76502 (US)

(74) Representative: Abbott, David John et al
Abel & Imray Northumberland House 303-306 High Holborn
London, WC1V 7LH
London, WC1V 7LH (GB)


(56) References cited: : 
   
       


    (54) Portable printer


    (57) A portable printer (20) including paper feed apparatus for utilizing sheet, roll or continuous form paper. The paper feed apparatus having paper feed roller (46) and friction idlers (52) for feeding all three forms of paper. The printer also includes apparatus for selecting printing different character pitches to reduce the memory capacity required. A method is provided for operating the printer to obtain alignment of the paper feed drive motor prior to printing.







    Search report