Ricoh Beluga-C1 Training page 160

Three LED heads shine directly on the drum.
There are no mirrors.
Resolution: 600 dpi
Slide 160
The main points are on the slide.
Illuminated areas of the drum drop to - 50 V (with a tolerance of +20V and -30V).
Un-illuminated areas are at -900 V ±40V.
Overview
160
Beluga-C1/C1.5 Training