Ricoh BR-C1a Basic Service Training page 290

 Potential control adjusts drum charge,
development bias, and laser output.
 Gradation patterns are created on the drum and
ITB belt at fixed times (described below) and read
by the ID sensor.
 The potential sensor also reads the image on the
drum surface, and these readings are used to
determine the development capacity
(development gamma).
 Based on these readings, the machine adjusts
processing conditions around the drum to
achieve the best image quality.
Slide 290
 Katana-series models do not make a gradation pattern for potential control.
Potential Control
Overview
290
BR-C1 Training