Oki OKIPAGE 8c Plus Maintenance Manual page 117

1
The printer does not work normally after turned on the power of rhe printer.
• Turn off the power of the printer, wait a few seconds, then turn on power again.
• Is
• No Is the AC cable connected correctly?
No Connect the AC cable correctly.
• Yes Does a voltage of +5V are being supplied on the panel connector of the main board (PCE PCB)?
Pin 5: +5V
Yes Is the operator panel cable connected correctly?
No
Yes Replace the operator panel cable. Recovered?
No
Yes End
• No Check the connection of the PU connector. Does a voltage of +5V are being supplied on
the PU connector of the main board (PCE PCB)?
Pin 6, 15, 26, 35: +5V
Yes Replace the main board.
• No Does a voltage of +5V are being supplied on the Power connector of the engine board (PX4 PCB)?
Pin 11,12, 13, 14: +5V Pin 3, 4, 5, 6, 23, 24, 5, 26, 27, 28, 29, 30: 0V
No Check the connection of the power connector or replace the low-voltage power supply
unit.
• Yes Replace the engine board.
• Yes Do the following voltages are being supplied on the PU connector of the main board?
Pin 6, 15, 26, 35: +5V
Pin 23: -12V Pin 25: +12V
Yes Replace the main board.
• No Do the following voltages are being supplied on the power connector of the engine board?
Pin 11, 12, 13, 14: +5V
Pin 1: +12V
Pin 3, 4, 5, 6, 23, 24, 25, 26, 27, 28, 29, 30: 0V
Yes Replace the engine board.
• No Replace the low-voltage power supply unit.
41057601TH Rev.1
displayed on the LCD (for about 1 second)?
Pin 2: 0V
Connect the cable correctly.
Replace the cover assembly operator panel.
Pin 1, 3, 5, 11, 20, 21, 40: 0V
Pin 2, 22: +3.3V
Pin 1, 3, 5, 11, 20, 21, 40: 0V
Pin 15, 16, 17, 18: +3.3V
Pin 2: -12V Pin 7, 8, 9, 10: +32V
117/