User blog comment:Majestic Soaring Cloud/Ichigo's destiny/@comment-10630156-20130710053807/@comment-11051098-20130716201012

I think the last part about having no Zanpakutô for "fake" Shinigami, was because of the fact that Ichigo manifested a Zanpakutô by himself when he got Rukia's powers the first time. He's the son of a real Shinigami, and that might be what Grand Fisher meant. He said that when he discovered that Isshin, a real Shinigami, was Ichigo's father, so I assume that's what he meant with "true blood".

Ichigo was born as a human, but he had Quincy powers that was dormant, and his soul/"soul form" was always a Shinigami with traces of a Hollow. I guess you could say that he was a Shinigami/Hollow with Quincy powers born in a gigai. Sort of.