KONICA 7020 - Blank copy

Question

Hi I am jane from the Philippines please help me with my konica 7020 Unit my technician cannot locate what really the problem but he says that the developing unit moves backward.I encountered some prob listed below:1. Blur copy (After I turn on the unit)2. Blank copy (after 2-3 copies)3. Warming up ( hanging)Hope you could help [e-mail]