Table 1-2 Electrical components
Component type Abbreviation Name
Switch SW1 Power switch
SW2 24V interlock switch
SW3 5V interlock switch 1
SW4 5V interlock switch 2
SW5 Primary transfer disengagement switch
SW6 Toner collection unit switch
SW7 Tray 2 cassette media end guide position switch
SW8 Tray 2 cassette media width guide position switch
Solenoid SL1 Tray 2 cassette pickup solenoid
SL2 Tray 1 pickup solenoid
SL3 Duplex reverse solenoid 1 (duplex models only)
SL5 Primary transfer disengagement solenoid
SL7 Duplex reverse solenoid 2 (duplex models only)
Fan FM1 Power supply fan
FM2 Fuser fan
FM3 Formatter fan
Photointerrupter (sensor) PS1 Tray 2 cassette paper-presence sensor
PS2 Tray 1 paper-presence sensor
PS3 Last-paper sensor
PS4 Tray 2 cassette paper-stack surface sensor
PS5 Top-of-page (TOP) sensor
PS6 Fuser delivery sensor
PS7 Loop sensor 1
PS8 Loop sensor 2
PS9 Fuser pressure-release sensor
PS10 Output bin full sensor
PS11 Developing disengagement sensor
PS12 Black drum home-position sensor
PS13 YMC drum home-position sensor
PS14 Front door sensor
PS15 Right door sensor
10 Chapter 1 Theory of operation ENWW