Brother GTX-4 Service Manual page 454

Error Error message
6221 [Machine Error]
6230 [Machine Error]
6231 [Machine Error]
6240 [Machine Error]
6241 [Machine Error]
Description
The white heads' temperature
level is abnormal.
It refers to abnormal voltage
in the color heads.
It refers to abnormal voltage
in the white heads.
It refers to FFC failure in the
color heads.
It refers to FFC failure in the
white heads.
8-37
Remedy
Items to be checked:
(1) Check the connection of the head connector.
(2) After making the color/white head connection
crossed, reactivate the device and replace the
head if the error 6220 appears.
Electric components as candidate for replacement:
Carriage circuit board and Main circuit board
Items to be checked:
(1) Check the connection of the head connector.
(2) Clean the carriage surroundings, carriage belt,
pulley, and encoder strip.
(3) After making the color/white head connection
crossed, reactivate the device and replace the
head if the error 6231 appears.
Electric components as candidate for replacement:
Carriage circuit board and Main circuit board
Items to be checked:
(1) Check the connection of the head connector.
(2) Clean the carriage surroundings, carriage belt,
pulley, and encoder strip.
(3) After making the color/white head connection
crossed, reactivate the device and replace the
head if the error 6230 appears.
Electric components as candidate for replacement:
Carriage circuit board and Main circuit board
Items to be checked:
(1) Check the connection of the head connector.
(2) Clean the carriage surroundings, carriage belt,
pulley, and encoder strip.
(3) After making the color/white head connection
crossed, reactivate the device and replace the
head if the error 6241 appears.
Electric components as candidate for replacement:
Carriage circuit board and Main circuit board
Items to be checked:
(1) Check the connection of the head connector.
(2) Clean the carriage surroundings, carriage belt,
pulley, and encoder strip.
(3) After making the color/white head connection
crossed, reactivate the device and replace the
head if the error 6240 appears.
Electric components as candidate for replacement:
Carriage circuit board and Main circuit board
Error code list