Quenching - Ricoh A156 Service Manual

10. QUENCHING

[A]
In preparation for the next copy cycle, light from the quenching lamp [A]
neutralizes any charge remaining on the drum.
The quenching lamp consists of a line of nine LEDs extending across the full
width of the drum.
Red LEDs are used to reduce ultra violet light which would cause light
fatigue of the OPC drum.
A156/A160/A162 2-76 STM