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Ricoh D093 - CGB PP (Charge, Grid Bias Power Pack); PSU (Power Supply Unit); SIF (Scanner Interface Board); VDB (Video Drive Board)

Ricoh D093
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Overview
D093/D094 2-32 SM
PSU
The PSU (Power Supply Unit) supplies DC power for all electrical components in the machine,
and controls AC input to the fusing lamps and anti-condensation lamps.
VDB, SIF
VDB (Video Drive Board)
The VDB controls the LPH and the algorithms to convert video data.
SIF (Scanner Interface Board)
The SIF controls the CIS (Contact Image Sensor) and changes analog data to digital data (A/D)
for scanned images.
CGB PP (Charge, Grid Bias Power Pack)
Supplies the high voltage power for the charge corona wire (C), development bias (B), and
charge corona grid (G).

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