• Code: 72-86
• Description: <When FS-534SD is installed> • The SD entrance sensor (PS1) is not turned OFF (unblocked) even after the set period of time has elapsed after it is turned ON (blocked). • When paper discharge control motor abnormality occurs during paper trailing edge control movement.
• Causes: • SD entrance sensor (PS1) • Paper discharge control motor (M2) • SD drive board (SDDB) • FS control board (FSCB)
• Remedy:

• Code: 72-87
• Description: <When FS-534SD is installed> The center staple/fold stacker paper detect sensor (PS3) is not turned ON even after the set period of time has elapsed after the SD entrance sensor (PS1) is turned ON (blocked) by the paper.
• Causes: • SD entrance sensor (PS1) • Center staple/fold stacker paper detect sensor (PS3) • SD drive board (SDDB) • FS control board (FSCB)
• Remedy:

• Code: 75-42
• Description: <When FS-534 or FS-534SD is installed> The RU entrance sensor (PS2) is not turned ON (blocked) even after the set period of time has elapsed after the copier's paper exit sensor (PS3) is turned OFF (unblocked) by the paper.
• Causes: • Paper exit sensor (PS3) • RU entrance sensor (PS2) • FS control board (FSCB)
• Remedy:

• Code: 75-43
• Description: <When FS-534 or FS-534SD is installed> The RU entrance sensor (PS2) is not turned OFF (unlocked) even after the set period of time has elapsed after it is turned ON (blocked).
• Causes: • RU entrance sensor (PS2) • FS control board (FSCB)
• Remedy:

• Code: 92-01
• Description: The registration sensor (PS1) is not turned ON (unblocked) even after the lapse of a given period of time after a duplex paper feed sequence has been started.
• Causes: • Transport motor (M1) • ADU transport clutch (CL6) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
• Remedy:

• Code: 92-02
• Description: For the second-side feed of paper in the duplex mode, loop forming has not been complete before the second side of a sheet enters the registration roller because the rise timing of load to perform registration is earlier than the rise timing of load to form a loop.
• Causes: • Transport motor (M1) • ADU transport clutch (CL6) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
• Remedy:

• Code: 92-40
• Description: For the second-side feed of paper in the duplex mode, the image write start signal permit continues to be disabled for a predetermined period of time after the timing of the image write start signal output.
• Causes: • Transport motor (M1) • ADU transport clutch (CL6) • Registration sensor (PS1) • Front side board (FRB) • MFP board (MFPB)
• Remedy:

• Code: 93-10
• Description: The ADU paper passage sensor/2 (PS41) is not turned ON (blocked) even after the set period of time has elapsed after the ADU paper passage sensor/1 (PS40) is turned ON (unblocked) by the paper.
• Causes: • Transport motor (M1) • ADU transport motor (M5) • ADU transport clutch (CL6) • ADU paper passage sensor/1 (PS40) • ADU paper passage sensor/2 (PS41) • Front side board (FRB) • MFP board (MFPB)
• Remedy: