(19)
(11) EP 0 449 392 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.11.1991 Bulletin 1991/47

(43) Date of publication A2:
02.10.1991 Bulletin 1991/40

(21) Application number: 91201459.4

(22) Date of filing: 30.11.1988
(51) International Patent Classification (IPC)5: B41J 32/00, B41J 35/23
(84) Designated Contracting States:
CH DE FR GB IT LI

(30) Priority: 30.11.1987 US 126152
05.07.1988 US 214982

(62) Application number of the earlier application in accordance with Art. 76 EPC:
88311368.0 / 0319285

(71) Applicant: SMITH CORONA CORPORATION
New Canaan Connecticut 06840 (US)

(72) Inventors:
  • Mueller, Hans W.
    Cortland, New York 13045 (US)
  • Cappotto, Samuel D.
    Syracuse, New York 13203 (US)

(74) Representative: Crawford, Andrew Birkby et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE
London WC1V 7LE (GB)


(56) References cited: : 
   
     
    Remarks:
    This application was filed on 13.06.1991 as a divisional application to the application mentioned under INID code 60.
     


    (54) System including ink ribbon and correction tape cassettes having a compatibility arrangement


    (57) An arrangement for assuring cassette compatibility in a device which utilities a first (2,2a) and second (10,10a) cassette in the operation thereof, the arrangement including engaging formations (8,44,16,46) located on the first and second cassettes which ensure that the cassettes are functionally compatible with each other when inserted in the device.
    The arrangement may be further configured, to assure cassette compatibility in a device having a switch means controlling the on-off condition thereof, so as to activate the on-off switch (60) of the device only when functionally compatible cassettes are present therein.






    Search report