1/05
10-130
DocuColor 12/DCCS50
Air Flow
Reissue
Principles of Operation
The Suction Blower, Rotary Fan, Fuser Intake Fan and Charge Corotron Fan are all controlled
by the IOT CPU and Drive PWBAs. +12 VDC, +24 VDC and +5 VDC power originates at the
IOT Low Voltage Power Supply, but is routed through the IOT Drive PWBA. Fan power is not
interlocked. Therefore, when machine doors are open, the fans still run.
Figure 1 IOT Fans Simplified Block Diagram
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