Patrick, Thanks for your input. I finally discovered that the multiple ink tanks of the same type, (small BK) was not a conflict between the small BK and large PGBK, but between the small BK and the small GY tanks. I had inserted a BK tank into the...
I have the same printer MG7520 and have the same error code 1681 "more than one ink tank of the same color" mine is the black ink tank. I cannot get to any other screen to do maintenance or restart. Turning the machine on and off, holding the start...
My problem comes out of a clear blue sky but only one ink tank seems to be not recognizable, the small black tank. The forum seems to have multiple reports of the problem but no solutions. I can do nothing with my MG7520 now that it is in the error m...
