Look this solution http://my.okidata.com/oki-faq.nsf/FAQCentral/C384D8F74A91CF6E8525765E0065F636?OpenDocument here the solution for your problem i hope that it's helpful .... bye
Was the toner a Oki toner or a after market toner? If it was not an Oki toner get a Oki toner and try that. The toner could be defective or yo may have a drum or board problem
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Look this solution http://my.okidata.com/oki-faq.nsf/FAQCentral/C384D8F74A91CF6E8525765E0065F636?OpenDocument
here the solution for your problem
i hope that it's helpful .... bye
BYE AND GOOD LUCK
Was the toner a Oki toner or a after market toner? If it was not an Oki toner get a Oki toner and try that.
The toner could be defective or yo may have a drum or board problem