HP M254dw wrong printing

[Profibastler]

Hello,
can anybody help for printing problem?
There are original Toner in use.
ITB i have changed.
Firmware is updated.
Printing with bars and stripes.
Problem same with new Toners.
Calibration doesn`t fix.
See att. picture

[tmw]

There are a couple possibilities. The vertical smears/lines I see at the top of the page look similar to a backed up waste compartment or dirty charge roller. For horizontal lines, it's possible that the contacts at the rear door to the transfer may be dirty or deformed. Less likely but possible is a bad formatter. Usually they make a solid yellow background if malfunctioning.