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e-STUDIO2020C/2330C/2820C/2830C/3520C/3530C/4520C
ERROR CODE AND TROUBLESHOOTING
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[CE70] Drum drive switching abnormality
Is the drum switching motor (M11) operating properly? (Perform the output check: 03-240)
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NO
1. Check if the connector of the motor and joint connectors are disconnected.
2. Check if the drum switching detection sensor (S19) is coming off its
installation position.
3. Check if the connector (CN339) on the LGC board is disconnected.
4. Check if the LGC board is short circuited or open circuited.
5. Check if the connector pins are disconnected or the harnesses are open
circuited.
6. Replace the drum switching motor.
7. Replace the LGC board.
YES
Is the drum switching detection sensor (S19) working? (Perform the input check:
03-[FAX]ON/[0]/[E]…Highlighted in the color mode)
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NO
1. Check if the connector of the drum switching detection sensor and joint
connectors are disconnected.
2. Check if there is any foreign matter such as grease in the detection area of
the drum switching detection sensor.
3. Check if the connector (CN339) on the LGC board is disconnected.
4. Check if the LGC board is short circuited or open circuited.
5. Check if the connector pins are disconnected or the harnesses are open
circuited.
6. Replace the drum switching sensor.
7. Replace the LGC board.
YES
Is the drum switching motor assembled in the drum drive unit able to be rotated smoothly by
hand?
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NO
1. While reinstalling the drum switching motor, push it so that its gear will
slightly move away from the engaging gear.
2. Check the bracket in which the drum switching motor is installed. If it is
deformed, replace it.
YES
Is the drum switching guide able to be moved smoothly by hand after the drum switching motor
has been removed?
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NO
Check if the slide area (guide, plate) of the drum switching guide is deformed
or any foreign matter is attached to it. (Replace it if there is.)
1. Check if the LGC board is short circuited or open circuited.
2. Replace the LGC board.