Brother MFC-9320CW Service Manual page 103

■ Error code 44 (K), 45 (Y), 46 (M), 47 (C)
No Toner
Open the Top Cover, then install Toner Cartridge. Black (K)
No Toner
Open the Top Cover, then install Toner Cartridge. Yellow (Y)
No Toner
Open the Top Cover, then install Toner Cartridge. Magenta (M)
No Toner
Open the Top Cover, then install Toner Cartridge. Cyan (C)
Toner cartridge is not installed into the machine.
(Non-installation is detected by the toner sensor.)
<User Check>
- Install the toner cartridge of the appropriate color.
Step
1 Harness connection failure of
toner/new sensor PCB ASSY
2 Engine PCB failure
3 Main PCB failure
4 Toner/new sensor PCB failure
■ Error code 48 (K), 49 (Y), 4A (M), 4B (C)
Replace Drum (K)
Replace Drum (Y)
Replace Drum (M)
Replace Drum (C)
Drum unit is at the end of life. (The drum counter value reaches the end of life.)
* When all four colors reach the end of life at the same time.
Replace Drums
<User Check>
- Replace the drum unit of the appropriate color with a new one.
- After replacing the drum unit with a new one, reset the counter using the control panel cover ASSY
on the machine. (Refer to
Cause
"2.1.3 Resetting the life counter of the drum unit" in Chapter
3-22
Remedy
Check the harness connection of the
toner/new sensor PCB ASSY and
reconnect it.
Replace the engine PCB ASSY.
Replace the main PCB ASSY.
Replace the toner/new sensor PCB ASSY.
7.)
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