It was the C.Itoh 8510. NEC made a model just like it, they called it the 8023. I fixed many, many of them. The first C.Itoh Apple used they called the DMP, had a parallel port, like the 8510. Then they decided to go serial port, redesigned and called it the Imagewriter. Even had a 15" wide version, of which I owned a couple at one time. Raymond