HP M5025 - LaserJet MFP B/W Laser - 1 x 500-sheet and 3 x 500-sheet high-capacity input feeder

DC controller PCA
The DC controller PCA controls the sequence of operation.
1. Device is turned on.
2. Low-voltage power-supply PCA supplies power to the DC controller.
3. The DC controller CPU begins controlling the device operation.
4. The device enters STBY mode.
5. The CPU receives input from the formatter and sends the appropriate signals to drive each load.
Figure 4-4 DC controller PCA
108 Chapter 4 Theory of operation ENWW