Ricoh C211 - Black Level Adjustment; Shading Adjustment

1.2 BLACK LEVEL ADJUSTMENT
Adjust VR601 until the black level at TP603 is the same as the standard
black level (1.4 V
±
0.03 V).
1.3 SHADING ADJUSTMENT
Adjust the shading plate position until the wave is shaped as shown above.
TP604 standard black level
TP603 wave shape
TP604 standard black level
TP603 wave shape
A
B
B/A
≥
60%
SM 5-3 C224