HP Color LaserJet Professional CP5220 Service Manual - Page 68
Duplex block (duplex models only),
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Duplex block (duplex models only) The duplex reverse control reverses the paper after the first side is printed. The duplex feed control feeds the paper to the duplex block to print the second side of the page. Figure 1-43 Duplex operation DC controller M4 Fuser motor SL3 Duplex reverse solenoid 1 SL7 Duplex reverse solenoid 2 M5 Pickup motor Delivery roller Duplex feed roller Duplex block Duplex media path 1. The DC controller controls the duplex reverse solenoid 1 and duplex reverse solenoid 2 at a specified timing after the first side is printed. Duplex reverse solenoid 1 Off On On Duplex reverse solenoid 2 Off Off On Delivery roller Rotates Stops Reverses 2. The DC controller reverses the delivery roller and the paper is reversed. 3. The duplex feed roller feeds the paper. 56 Chapter 1 Theory of operation ENWW