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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.
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2. Check if the drum switching detection sensor (S19) is coming off its
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3. Check if the connector (CN339) on the LGC board is disconnected.
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4. Check if the LGC board is short circuited or open circuited.
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5. Check if the connector pins are disconnected or the harnesses are open
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6. Replace the drum switching motor.
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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)
NO
1. Check if the connector of the drum switching detection sensor and joint
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2. Check if there is any foreign matter such as grease in the detection area of
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3. Check if the connector (CN339) on the LGC board is disconnected.
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4. Check if the LGC board is short circuited or open circuited.
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5. Check if the connector pins are disconnected or the harnesses are open
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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
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2. Check the bracket in which the drum switching motor is installed. If it is
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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
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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.
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installation position.
circuited.
connectors are disconnected.
the drum switching detection sensor.
circuited.
slightly move away from the engaging gear.
deformed, replace it.
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e-STUDIO2020C/2330C/2820C/2830C/3520C/3530C/4520C
ERROR CODE AND TROUBLESHOOTING
6
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