Electrical systems Power distribution The low-voltage power distribution circuit transforms the AC input voltage to supply the DC power sources, +24VB and +5V, on which the printer operates. The +24V source feeds the various motors, solenoids, and exhaust fans within the printer, while the +5V source feeds the controller board and image processor. Figure 44. Power distribution circuit diagram 164 Chapter 5 - Theory of operation EN High-voltage power supply/ Separation discharge high- voltage converter PCA