Resolve LED Head Unit problem of OKI Printer B-412

It is very interesting and informative that how to replace OKI Printer&LED Head Unit/ Laser Assembly in an easy way. Translated titles: Resuelva el problema de la unidad principal LED de la impresora OKI B-412 Beheben Sie das Problem mit der LED-Kopfeinheit des OKI-Druckers B-412 Résoudre le problème de l&de tête LED de l&OKI B-412 Resolva o problema da unidade principal de LED da impressora OKI B-412 OKI प्रिंटर B-412 की LED हेड यूनिट समस्या का स حل مشكلة وحدة رأس LED لطابعة OKI B-412 Mengatasi masalah Unit Kepala LED Printer OKI B-412 Risolvi il problema dell&principale LED della stampante OKI B-412 Устранение проблемы светодиодного головного блока пр