Does the Printer have a ITB Sensor?

Does the printer have a ITB sensor, I have the m281fdw model, and after bad third party towner, I can no longer print magenta. I have tried two new HP cartridges , but the internal logs are showing “Magenta Density Range Error”, and “Color plane registration sensor error”.
from what I have found online, they talk about cleaning the ITB sensor, but I have been unable to locate it on this printer, or find a service manual.

Does anyone have any advice?