2. BLOWN FUSE CONDITIONS
Fuse
Rating
Symptom (Main Switch: ON)
110 - 120 V 220 – 240 V
DC Power Supply Board
FU801 8A/125 V 5 A/250 V No response (Dead machine)
FU802 6.3 A/125 V
SC121 (Scanner HP sensor abnormal - stays on) or
SC120 (Scanner HP sensor abnormal - stays off)
FU803 6.3 A/125 V SC900 (Bk-total counter not on)
FU804 6.3 A/125 V
SC900 when the Start key is pressed, or misfeed
occurs before registration when copy mode without
black is selected.
Trouble -
shooting
SM 6-29 A172/A199
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