B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
197/106, 197/109
B41J 19/62 (2006.01) B41J 29/36 (2006.01) B41J 31/10 (2006.01) B41J 33/02 (2006.01)
Patent
CA 1050465
AUTOMATIC FUNCTION MECHANISM FOR TYPEWRITERS ABSTRACT OF THE DISCLOSURE A method and mechanism for automatically performing a typewriter function such as backspacing a carriage where the backspace mechanism is actuated upon removal of an insertable and removable ribbon cartridge. Particularly adaptable to correcting typing errors, the present invention will automate the final backspacing operation that is necessary before the correct character is typed and normal typing can be continued. A modified ribbon cartridge containing error correction ribbon carries at least one abutment that engages a backspace coupled actuating mechanism upon removal of the ribbon cartridge. Therefore, automatic backspacing of the typewriter carriage occurs after a modified ribbon cartridge is inserted into the typewriter to perform an error correction operation simply by removing the error correction ribbon cartridge. Although a backspace function has been selected as the most appropriate function for actuation by the modified cartridge, other selected functions may also be actuated by the modified cartridge.
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