Stacker Motor Encoder (Sme), Elevator Motor Encoder (Eme - Printronix L5000 Series Maintenance Manual

Stacker motor encoder (SME), Elevator motor encoder (EME)

These sensors detect abnormal DC motor revolution. They consist of a mask attached
to the motor axis, light emitters, and light receptors. The motor revolution is
monitored by the length of time that blockages of light occur between the light
emitter and receptor.
Optional Power Paper Stacker E–23