Brother FAX-2840 Service Manual page 52

Error
Problem
codes
4F An unidentified error occurred.
The number of rotations of the
50 drum unit has reached the life
limit. (Printing does not stop.)
51 An unidentified error occurred.
52 An unidentified error occurred.
53 An unidentified error occurred.
54 An unidentified error occurred.
55 An unidentified error occurred.
The eject sensor detected that
56
the fuser unit cover was open.
57 An unidentified error occurred.
Any of errors 6A to 6D, 6F, 76 or 78
occurred when the power was
58
turned ON or the machine goes back
to the ready state from sleep mode.
Rechecking the error after the
power switch was turned OFF
59 and then ON again because an
error was detected by the center
thermistor of the fuser unit.
5A An unidentified error occurred.
5B An unidentified error occurred.
5C An unidentified error occurred.
5D An unidentified error occurred.
5E An unidentified error occurred.
5F An unidentified error occurred.
60 An unidentified error occurred.
61 An unidentified error occurred.
62 An unidentified error occurred.
The number of rotations of the developer
63 roller reached the upper limit when Stop
Mode is set for the toner cartridge.
64 An unidentified error occurred.
Refer Error
to codes
2-28 65 An unidentified error occurred.
2-28 66 An unidentified error occurred.
The number of rotations of the
developer roller will reach the
2-29 67
upper limit when Stop Mode is
set for the toner cartridge.
2-29 68 An unidentified error occurred.
2-29 69 An unidentified error occurred.
The center thermistor of the fuser unit
2-29 6A does not reach the specified
temperature within the specified time.
The center thermistor of the fuser unit
2-29 6B does not reach the specified
temperature within the specified time.
The center thermistor of the fuser
2-29 6C unit detected a temperature
higher than the specified value.
After the heat unit was heated
normally, the center thermistor of the
2-29 6D
fuser unit detected a temperature
lower than the specified value.
2-30 6E An unidentified error occurred.
The center thermistor or the side
2-30 6F thermistor of the fuser unit
detected a temperature error.
2-31 70 An unidentified error occurred.
Detected an error in the
2-31 71 synchronized signal of the
polygon motor for the laser unit.
Cannot detect the signal from the
2-31 72
beam sensor for the laser unit.
2-31 73 An unidentified error occurred.
2-31 74 An unidentified error occurred.
The internal temperature
2-31 75 thermistor detected a temperature
higher than the specified value.
The center thermistor of the fuser
unit detected a temperature rise
2-31 76
greater than the specified value
within the specified time.
The center thermistor of the fuser
unit detected a temperature fall
2-31 78
greater than the specified value
within the specified time.
Cannot detect the synchronized
signal of the main motor.
2-31 7A
The speed of the main motor does
not stabilize within the specified time.
2-31 7B An unidentified error occurred.
2-31 7C An unidentified error occurred.
2-15
Refer
Problem
2-31
2-31
2-32
2-32
2-32
2-33
2-33
2-33
2-33
2-33
2-34
2-34
2-35
2-35
2-35
2-35
2-36
2-36
2-36
2-36
2-37
2-37
Confidential
to