HP LaserJet Enterprise 500 Solenoids, Clutches, Switches

Solenoids

Table 1-2 Solenoids

Component abbreviation Component name

SL1	Primary transfer roller disengagement solenoid
SL2	Duplex reverse solenoid (HP LaserJet Enterprise 500 color M551dn and HP LaserJet Enterprise
	500 color M551xh only)
SL3	Multipurpose-tray pickup solenoid
SL4	Cassette pickup solenoid

Clutches

Table 1-3 Clutches

Component abbreviation Component name

CL1	Duplex re-pickup clutch (HP LaserJet Enterprise 500 color M551dn and HP LaserJet Enterprise
	500 color M551xh only)

Switches

Table 1-4 Switches

Component abbreviation Component name

SW1, SW2	5V interlock switch
SW3	24V interlock switch
SW4	Power switch
	Test print switch

6 Chapter 1 Theory of operation ENWW