Separate names with a comma.
Sounds like the head or slider board is faulty
H650 or T660
The best option is to initiate a nozzle wash from the maintenance menu and fill the cap with liquid. When it asks how long to want to leave it set...
If the end key is not working press the function key and go to setup. In setup look for mark Detect and click enter. Make sure mark end key start...
If you feel confident removed the damper on the cyan and magenta head and with a syringe push cleaning fluid gently through the head manifold to...
Might look slightly better but still going to get overspray on magenta and banding in the print. If you want it looking perfect it’s a new print head.
Damage to nozzle surface, possible head strike on media
100% head failure unfortunately