Brother FAX-2840 Service Manual page 81

Error code 9C
Replace Toner
Received faxes are also stored in memory until the toner cartridge is replaced
or the memory is full.
The number of rotations of the developer roller will reach the upper limit soon when Continue
Mode is set for the toner cartridge.
<User Check>
• Replace the toner cartridge with a new one.
Step
New toner actuator catching on
1 some position (when the error
message does not disappear)
Connection failure of the new
toner sensor harness (when the
2
error message does not
disappear)
New toner sensor PCB failure
3 (when the error message does
not disappear)
4 Main PCB failure
Error code 9D and 9E
These errors do not usually occur in the normal use. The conceivable causes are noise
around the installation site, fluctuation of the power supply voltage, and failures in the
software.
---
An unidentified error occurred.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Cause
Correct the position of the new toner actuator.
Reconnect the new toner sensor harness.
Replace the new toner sensor PCB ASSY.
Replace the main PCB ASSY.
Cause
Replace the main PCB ASSY.
2-44
Remedy
Remedy
Confidential