Table 1-9 DC controller controlled components (continued) Component Designator Description Photointerrupter PS1 Face-up sensor PS2 Fuser delivery sensor PS3 Cassette media presence sensor PS4 Face-down tray (output bin) media-full sensor PS205 Tray 1 (multipurpose tray) presence sensor PS215 Top-Of-Page (TOP) sensor PS225 Media width sensor PS451 Paper feeder cassette media-presence sensor NOTE: PS451 is used in Tray 3, and Tray 4 PS502 Duplex media-feed sensor (duplex models only) PS8001 Rear door sensor PS8008 Paper feeder media-feed sensor Switch SW235 Cassette-presence switch NOTE:
PS8008 is used in Tray 3, and Tray 4 SW240 Power switch SW250 Test Print switch SW501 Cartridge-door switch ENWW Engine-control system 15