26 July 2002 SERVICE CALL
4-13
Trouble-
shooting
No.
Definition
Symptom Possible Cause
Interchange unit error 793 D
The machine recognizes the duplex
unit/1-bin tray unit, but does not
recognize the interchange unit.
• Incorrect installation
• Defective connector
• Defective cable
Startup without video output end error (K) 800 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the engine
within the specified time.
• Defective controller board
Startup without video output end error (Y) 801 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the engine
within the specified time.
• Defective controller board
Startup without video output end error (M) 802 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the engine
within the specified time.
• Defective controller board
Startup without video output end error (C) 803 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the engine
within the specified time.
• Defective controller board
Startup without video input end error (K) 804 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the
scanner within the specified time.
• Defective controller board
Startup without video input end error (Y) 805 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the
scanner within the specified time.
• Defective controller board
Startup without video input end error (M) 806 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the
scanner within the specified time.
• Defective controller board
Startup without video input end error (C) 807 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the
scanner within the specified time.
• Defective controller board
Startup without video input end error (R) 808 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the
scanner within the specified time.
• Defective controller board
Startup without video input end error (G) 809 B
Video transfer to the engine is
started, but a video transmission end
command is not issued by the engine
within the specified time.
• Defective controller board
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