Sensors

Table 1-5 Sensors

Component abbreviation Component name

SR1

Drum home position sensor 1

 

 

SR2

Drum home position sensor 2

 

 

SR3

Drum home position sensor 3

 

 

SR5

Fuser output sensor

 

 

SR6

Output bin full sensor

 

 

SR7

Fuser pressure release sensor

 

 

SR8

Registration sensor

 

 

SR9

Fuser pressure release sensor

 

 

SR11

Developer alienation sensor

 

 

SR13

Tray 2 cassette sensor

 

 

SR14

Fuser loop 1 sensor

 

 

SR15

Fuser loop 2 sensor

 

 

SR17

ITB alienation sensor

 

 

SR20

Tray 2 paper sensor

 

 

SR21

Tray 1 paper sensor

 

 

SR22

Duplexer refeed sensor (HP LaserJet Enterprise 500 color M551dn and HP LaserJet Enterprise

 

500 color M551xh only)

 

 

 

OHT sensor (in)

 

 

 

OHT sensor (out)

 

 

 

RD sensor (front)

 

 

 

RD sensor (rear)

 

 

 

Environmental sensor (temperature and humidity)

 

 

 

Yellow toner-level sensor

 

 

 

Magenta toner-level sensor

 

 

 

Cyan toner-level sensor

 

 

 

Black toner-level sensor

 

 

 

Toner collection-box-full sensor

 

 

Motors and fans

ENWW

Engine control system

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