31 August 1989
13.2 EXIT ROLLER DRIVE MECHANISM
The main motor [A] drives the exit relay rollers [B] and exit rollers [C] through the timing belt
[D] and the exit drive chain [E].
For safety purposes, the lower exit roller is driven through a slip clutch [F]. This slip clutch
ensures that the roller turns when operating normally, but it slips when excessive force exists
between the lower and upper exit rollers.
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