Hi, i´m a canon CBS techie and i have a customer with an IR2570C (similar to the IR3170c for coutries who dont have this model) with faulty print and copy, the machine does a kind of lighter lines about 3mm to 4mm wide with 2 to 3 mm interval along the entire copy or print from the front door to the back of the machine, it does the same in all colors and even in service mode tests, already changed ITB, drum, developers and toners, cleaned laser wich looked normal and o succsess, changed electric conectors behind developers rolling stand too, have ran out of ideas, any ideas on this problem? sugestions are very welcome, thanks in advance from the azores , athached is a scan of a test in service mode, does the same in all colors

IR2570c.pdf