Clutch for rotational synchronization between input and output e

Details Clutch for rotational synchronization between input and output e Clutch for rotational synchronization between input and output e

1996-12-30

1999-06-22

Burr, Edgar

Typewriting machines

Sheet or web

For feeding plural record media concurrently or selectively

4006081, B41J 1150

Patent

active

059136227

ABSTRACT:
In a printer having multiple paper paths, each path is provided with a clutch and a tractor to advance paper between a printhead and a striker bar, the paper being selectively advanced along the paper paths. Each clutch has a timing pulley driven by a cog belt, in turn driven by a stepper motor. The input pulley and the output gear driving the tractor are synchronized during repeated engagement such that the clutch reengages the input and output elements at a rotational position corresponding to the rotational position of the input element when previously disengaged from the output element.

REFERENCES:
patent: 5051010 (1991-09-01), Stephens et al.

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