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Table 1-4 Sensors
Component abbreviation Component name
NPLED Media sensor
SR1 Yellow drum home position sensor
SR2 Magenta drum home position sensor
SR3 Cyan drum home position sensor
SR4 Black drum home position sensor
SR5 Fuser delivery sensor
SR6 Output bin full sensor
SR7 Fuser pressure release sensor
SR8 MP-tray-media-presence sensor
SR9 Primary-transfer-roller disengagement sensor
SR10 New ITB sensor
SR11 Developer alienation sensor
SR14 Loop sensor 1
SR15 Loop sensor 2
SR20 TOP (top of page) sensor
SR22 Duplex re-pickup sensor (HP Color LaserJet CP4525dn, HP Color LaserJet CP4025dn, and
HP Color LaserJet CP4525xh only)
SR23 Tray 2 paper surface 1 sensor
SR24 Tray 2 paper surface 2 sensor
SR25 Tray 2 paper present sensor
RD sensor
Environment sensor (temperature and humidity)
Yellow toner-level sensor
Magenta toner-level sensor
Cyan toner-level sensor
Black toner-level sensor
Residual toner full sensor
TH4 Laser scanner temperature sensor
ENWW Engine-control system 7