Clutches Component abbreviation Component name CL1 Duplex re-pickup clutch (HP Color LaserJet CP4525dn, HP Color LaserJet CP4025dn, and HP Color LaserJet CP4525xh only) Switches Table 1-3 Switches Component abbreviation Component name SW1 5V interlock switch SW2 24V interlock switch SW3 Power switch SW4 Cassette media size switch SW5 Front door switch SW6 Right door switch Test print switch 6 Chapter 1 Theory of operation ENWW