Ricoh C211 Service Manual page 131

3.1.8 White Level Adjustment
J
A: 2. OkO,lV
A
Purpose: To set the white level so that the background of the test chart is not
copied.
1. Position the test chart so that the background area (white area) of the test
2
3
chart can be read,
Press the Print Start key to turn on the fluorescent lamp.
Adjust VR 600 forVT2100/VT2130/VT2150 (VR-1 for VT2300~2500) on
the A/D conversion PCB so that the maximum level is 2,0 *O. 1 V.
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