http://i42.tinypic.com/nbt2ci.jpg
http://i43.tinypic.com/10rpd3d.jpg
http://i39.tinypic.com/28gtmvs.jpg

How can I find a source for this component (in the US, or anywhere)? It's a
rotary encoder used as an input to a microcontroller to rotate a motor shaft
in small increments in a 10-year old German printing machine.

There are 32 detents per revolution. The unit includes a momentary pushbutton
(when you push on the shaft there is click and tactile feedback).

I presume it's a gray-code quadrature output encoder. Optical? Mechanical?
Only 5 of the pins are used. (Typically power, ground, channel 1, channel 2,
.... ?)

Source? Data sheet?

Does this look like Klockner-Moeller? Or it may be Japanese -- the LCD
display for this equipment is Hitachi.

Thanks,
Dave