Olivetti CMS 140 B euro, Руководство по обслуживанию

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2-4 Service Manual 686770R
Reduction gear series
(See Fig. 2-2 and 2-3)
The reduction gear train consists of the motor gear,
reduction gear, planet gear, selective drive gear,
selective gear assembly, selective pawl, and print
changeover cam. When the motor rotates (2), the
rotational force is sequentially reduced from the motor
gear (3) on the same shaft through the gear train to the
selective gear assembly (7).
Fig. 2-3 Reduction Gear Series
The rotation of the print changeover cam is locked by
the action of the selective pawl, so the paper feed
ratchet wheel (8) on the same shaft as the selective
gear assembly, the print wheel, and the detection
wheel also rotate at the same time.