Kyocera M5526 Vertical Print Defects

[Heisenburg]

Hi All, I'm hoping to get an opinion from some of the experts here. I've got a Kyocera M5526 printer that seems to need constant cleaning and continues to print vertical lines and smudges on one or more colors. There always seems to be fused toner on some the drums as well.
50K prints
ITB appears fine & clean
Cyan drum changed a month ago
Printer always uses Kyocera toner

Thanks in advance.

[Fabricio]

Comentarte que tu equipo tiene problemas en la unidad de imagen, revisa si la cuchilla de limpieza no este amarilla