Table 1-2 Electrical components (continued)
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 (T1) disengagement switch
SW6 Toner collection unit switch
SW7 Tray 2 cassette media end switch
SW8 Tray 2 cassette media width switch
Fan FM1 Power supply fan
FM2 Fuser fan
FM3 Formatter fan
FM4 Cartridge fan
FM5 Sup power supply fan
Photointerrupter (sensor) PS1 Tray 2 cassette paper out sensor
PS2 Tray 1 (MP Tray) paper out 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 Face-down output bin paper full sensor
PS11 Developing disengagement sensor
PS12 K drum home-position sensor
PS13 Y/M/C drum home-position sensor
PS14 Front door sensor
PS15 Right door sensor
10 Chapter 1 Theory of operation ENWW
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