B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
B41J 5/20 (2006.01) B41J 7/48 (2006.01) B41J 23/02 (2006.01)
Patent
CA 2060675
(Figure 2) ABSTRACT ELECTRONIC TYPEWRITER An electronic typewriter (11) has a line spacing device (29) for rotating a platen roller (16) and a transport device (28) for moving a printing carriage (19) in both directions. The line spacing and transport devices are driven from a single motor (32) via an intermediate gear (40) mounted on a shift member (35). The shift member (35) is displaceable between two operative positions for connecting a driveshaft (33) to the transport device (28) or to the line spacing device (29). A servomechanism (36) which is motorized by the shaft (33) displaces the shift member (35) between the two positions by means of a shift electromagnet (81) which actuates a lever (79) to lock the gear (40) by means of teeth (88) on a slide member (43). Positioning means (44) hold the shift member (35) in each of the two operative positions, and an electronic control means (22) controls the motor (32) and the electromagnet (81). The system is of low cost, and is simple, functional and reliable.
Crotti Alessandro
Mazini Daniele
Ing. C. Olivetti & C. S.p.a.
Ridout & Maybee Llp
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