Oki ML420 - Page 103

42113901TH01 Rev.3 103 /
Oki Data CONFIDENTIAL
Pin No. 20 19 18 17 16 15 14 13 12 11 10 9 8 7 4 3 1
Signal 50V 0V +5V 0V +12V -8V
No Yes
Replace Control Board.
Replace Transformer assy.
Remedied?
No Yes
End
Replace Power Supply Board.
Control Board
CN2
20 1