Error code 6901Error code 6901
An error occurred in the fuser uAn error occurred in the fuser unit when the power switch nit when the power switch was turned ON or sleep was turned ON or sleep mode wasmode was
ended.ended.
Error code 6902Error code 6902
Rechecking the error after the power switch was turned OFF and then ON again because anRechecking the error after the power switch was turned OFF and then ON again because an
error was detected by the fuser unit.error was detected by the fuser unit.
(This message is displayed for approximately 15 minutes when (This message is displayed for approximately 15 minutes when the machine is restarted afterthe machine is restarted after
error code 6901 has occurred.)error code 6901 has occurred.)
Cooling DownCooling Down
Wait for a whileWait for a while
<User Check><User Check>
•• LowLower the rer the room teoom tempemperatrature.ure.
•• Keep the Keep the machinmachine away fre away from heatom heating appling appliancesiances..
SStteepp CCaauussee RReemmeeddyy
11
Connection failure of theConnection failure of the
internal temperature thermistorinternal temperature thermistor
harnessharness
Reconnect the internal temperature thermistorReconnect the internal temperature thermistor
harness.harness.
22
Internal temperature thermistorInternal temperature thermistor
failurefailure
Replace the Internal temperature thermistor.Replace the Internal temperature thermistor.
33 MMaaiin n PPCCB B ffaaiilluurree RReeppllaacce e tthhe e mmaaiin n PPCCB B AASSSSYY..
Self-DiagnosticSelf-Diagnostic
Turn the power off, then on Turn the power off, then on again. Leave the machine for 15 min.again. Leave the machine for 15 min.
Self-DiagnosticSelf-Diagnostic
Will Automatically Restart within 15 minutes.Will Automatically Restart within 15 minutes.
SStteepp CCaauussee RReemmeeddyy
11
Connection failure of the fuserConnection failure of the fuser
unit harnessesunit harnesses
Reconnect each harness of the fuser unit.Reconnect each harness of the fuser unit.
22 FFuusseer r uunniit t ffaaiilluurree RReeppllaacce e tthhe e ffuusseer r uunniitt..
33
Low voltage power supply PCBLow voltage power supply PCB
failurefailure
Replace the low voltage power supply PCBReplace the low voltage power supply PCB
unit.unit.
44 MMaaiin n PPCCB B ffaaiilluurree RReeppllaacce e tthhe e mmaaiin n PPCCB B AASSSSYY..
Note:Note:
•• Turn OFF the Turn OFF the power switch. After power switch. After the fuser unit has the fuser unit has cooled sufficientlycooled sufficiently, turn ON , turn ON thethe
power switch again and leave the machine for ten minutes. This problem may then bepower switch again and leave the machine for ten minutes. This problem may then be
cleared.cleared.
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