Brother MFC-9320CW Service Manual page 111

■ Error code 73
Print Unable 73
Turn the power off and then back on again.
Recording ASIC read/write error
Step
1 Harness connection failure of
LED head control PCB ASSY
2 LED head control PCB failure
3 Main PCB failure
■ Error code 74
(This error can be found out only in
Replace Toner
Open the Top Cover, replace Toner Cartridge. #
Toner of the color which is being used reaches the end of life while printing.
(The counter value of the develop roller reaches the end of life, or the toner sensor detects
toner empty.) This error is not recorded in the error log.
Error code 87
Calibrate
Calibration failed. Insufficient Toner for Calibration.
Toner of the color which is being used reaches the end of life when implementing adjustment
of color density from the control panel cover ASSY. (The counter value of the develop roller
reaches the end of life, or the toner sensor detects toner empty.)
Error code 9E
Registration
Registration failed. Insufficient Toner for Registration.
Toner of the color which is being used reaches the end of life when implementing adjustment
of color registration from the control panel cover ASSY. (The counter value of the develop
roller reaches the end of life, or the toner sensor detects toner empty.)
<User Check>
- If any of the toner cartridges reaches the end of life, replace it with a new one.
Step
1 Toner/new sensor PCB failure
2 Engine PCB failure
Cause
Cause
3-30
Remedy
Check the harness connection between
the main PCB ASSY and LED head
control PCB ASSY, and reconnect them.
Replace the LED head control PCB ASSY.
Replace the main PCB ASSY.
"Function code 82".)
Remedy
Check the sensor performance following
the procedure described in
32". If any problem occurs, replace the
toner/new sensor PCB ASSY.
Replace the engine PCB ASSY.
"Function code
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