Neat gears from an HP printer

[amcalpine]

This is neat, it is an explanation of the reversing mechanism of an HP printer duplexer. There must be very smart engineers over at HP, well at least ten years ago.. It's an old machine.
Lots of gears.

http://www.brainlubeonline.com/HP

Sorry I posted this in the wrong place at first

 

[hydtools]

Clever application of one-way clutches.

Ted