OKI B430
Troubleshooting. Printer does not work normally after tuning on the power
| Turn off the power and then, turn on the power again. | ||||
| Are messages in the display of LCD all in black? | ||||
| NO Is the AC cord properly connected? | ||||
| NO Connect the AC cord. | ||||
| Yes Is the cable to connect the main board with the low-voltage power correctly connected? | ||||
| • No Connect the cable. | ||||
| Yes Is +5V supplied to the main board? (Check with 18 pins and 35 pins of CENT connector) | ||||
| No Do+5V of the main board and GND short out? (Check with 18 pins and 35 pins of CENT connector) |
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| No Replace the low-voltage power. | ||||
| Yes Replace the main board. | ||||
| Yes The flexible cable of the operator panel Assy is appropriately connected to the LCDPNL connector of the main board and Connector CN1. | ||||
| No Connect the flexible cable appropriately. | ||||
| Yes Replace the operator panel Assy or the flexible cable. | ||||
| Has the problem been solved? | ||||
| No Replace the main board. | ||||
| Yes Completed | ||||
| Yes Is the message of "INITIALIZING" displayed on the LCD? | ||||
| No Replace the main board. | ||||
| Yes Is the message of "ONLINE" is displayed on the LCD? | ||||
| No Take action according to the LCD status message/ Trouble List. | ||||
| Yes Completed. | ||||