Oki ML6300 User Guide - Page 49

PROBLEM CAUSE ACTION Printing slows down Print direction changes suddenly to unidirectional . PE warning The print carriage does not operate. Print blurring The characters are too pale to display properly on the paper. A line of print is missing. When the print head overheats, the printer automatically starts unidirectional split printing. There is contamination on the carriage shaft. The Paper Thickness lever position does not match the paper. The printer is set to print at high speed. The ribbon has reached its end of life. The ribbon cartridge is not installed correctly. The ribbon has been wound incorrectly. The ribbon is not transferring properly. Broken wire pins. When the print head temperature drops sufficiently, the printer will return to its original operation. Clean any paper dust and contamination from the carriage with a dry cloth. Correct the Paper Thickness lever setting. Set the speed to normal. Replace the ribbon by a new one. Reinstall the ribbon cartridge correctly. Replace the ribbon cartridge by a new one. Replace the ribbon cartridge by a new one. Contact your dealer. Troubleshooting > 49