Oki ML420 - Page 112

42113901TH01 Rev.3 112 /
Oki Data CONFIDENTIAL
0 Data receiving failure
Is the SEL LED blinking?
No Yes
Printer went into the print suppress mode.
Wait until printer to receives DC1 code, or change the menu item “Print sup-
press-Ineffective” when the function is not required.
Is the I/F RS232C?
No Yes
To step 10-2
Does the SEL LED light up?
Yes No
Press SEL key.
Remedied?
No Yes
Does the printer receive data properly?
No Yes
To step 10-1 End
Disconnect I/F cable.
Does the SEL LED light up?
No Yes
Change menu item I-prime to invalid, or check for defective cable.
Replace Control Board.
Remedied?
No Yes
End
Replace I/F cable.
10-1