SC No. Level Error Name/Error Condition/Major Cause/Solution
SC204-00 D Polygon Motor: XSCRDY Signal Error
During polygon motor rotation, the XSCRDY signal was inactive (H) for
longer than one rotation of the polygon.
• The interface harness to the polygon motor driver damaged or not
connected correctly.
• Polygon motor or polygon motor driver defective
• Turn the power off/on
• Replace the LSU or polygon motor
• Replace the polygon harness
• Replace the IPU board
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC220-01 D Leading Edge: LD1 synchronization detection error: Bk
SC220-04 D Leading Edge: LD1 synchronization detection error: Ye
The leading edge LD0 synchronization detection signal of the
corresponding color was not output within T1 sec. while the polygon
mirror motor was operating at normal speed.
• The interface harness to the synchronization detection unit damaged
or not connected correctly.
• Synchronization detection board defective
• Beam does not enter photo detector.
• Abnormality around GAVD
• IDB (LED driver) defective
• LDB defective
• BCU defective
• Turn the power off/on
• Replace the LSU or polygon motor
• Replace the polygon harness
• Replace the IPU board
Service Call 201-285
459
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