Hi Folks. I have a Canon G4210 printer operating off a MAC Catalina operating system. The G4210 Nozzle Check Pattern is starting to have black printing issues. When I print a Nozzle Check Pattern, I notice two problems with the black section. The first condition that I notice is that the two vertical black bars on either side of the BK, are blurry at the top and bottom. The second problem is with the BK pattern grid having bent vertical spikes on the top and bottom. I've completed cleaning, deep cleaning and roller cleaning. Any ideas? Thanks in advance for any and all assistance you may provide.
I have a photo of the issue in question, but this media seems to prevent me from inserting it into this message.
