Brother HL-2600CN Service Manual page 259

4.3.13 Toner Sensor ASSY (TTR)
1) Remove the set screws ST3X6 (2 pcs.) from the toner sensor.
2) Disconnect and remove the toner sensor.
Toner Sensor ASSY
(TTR)
4.3.14 Toner Key Sensor 2 (TNK)
1) Remove the set screws ST3X6 (2 pcs.) to remove the toner key sensor 2 from the
frame.
Toner key sensor 2
Fig.7-64
Fig.7-65
VII-47