Canon 7250 print blur on black

[roeibi]

i have canon 7250 printer for some months

the print on the black PGBK print head print blur

i dont know if its even the right word to describe it.

i've uploaded a photo so you can see

i use original cartridges and i tried switching them

also i tried deep cleaning and cartridge alignment.

any other idea?

any support or suggestion will be thankful.

[Isus]

I have the same problem, cleaned the head in the printer and manually.

No improvent it´s the same head as in the MG7520.

I´m already thinking of buying a new herad or a new