Brother HL-5590DN

3-86
Confidential
9.24 Toner amount detection sensor PCB ASSY
(light reception)
(1) Release the toner amount detection sensor PCB harness (light reception) from the
securing fixtures.
(2) Release the two hooks, and remove the toner amount detection sensor PCB ASSY (light
reception) from the main frame L ASSY.
(3) Release the two hooks, and remove the toner LED holder from the toner amount
detection sensor PCB ASSY (light reception).
Fig. 3-75
Harness routing: Refer to “3. Left side of the machine (Common to all models)”.
Toner amount detection sensor PCB ASSY (light reception)
Hook
Toner LED
holder
Hook
Toner amount detection sensor
PCB ASSY (light reception)
Toner amount detection sensor
PCB harness (light reception)
Main frame L ASSY
Hook
Hook