Brother HL 5030 - B/W Laser Printer Service Manual page 238

CHAPTER 7 SOFTWARE SERVICE SUPPORT
<HL-5040>
After checking of all 6 sensors, Toner LED is lit if no unusual states are detected.
After checking of all 5 sensors, Drum LED is lit if no unusual states are detected.
<HL-5050/5070N>
After checking of all 6 sensors, Toner LED is lit if no unusual states are detected.
After checking of all 6 sensors, Drum LED is lit if no unusual states are detected.
* Front registration sensor
* Rear registration sensor
* Paper eject sensor
* Front cover sensor
* Fixing unit cover sensor
* Toner sensor
* Tray 1 paper loading sensor
* Tray 1 cassette sensor
* Tray 2 paper loading sensor
* Tray 2 cassette sensor
* Tray 2 registration sensor
* Front registration sensor
* Rear registration sensor
* Paper eject sensor
* Front cover sensor
* Fixing unit cover sensor
* Toner sensor
* Tray 1 paper loading sensor
* Tray 1 cassette sensor
* MP paper loading sensor
* Tray 2 paper loading sensor
* Tray 2 cassette sensor
* Tray 2 registration sensor
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