FujiXerox C1000 print issue on 4C image over CMYK vector

Hi,

When our POD printed this book, the Images came out muddy (see scanned of printed book).
Unfortunately, the first lot was shipped and rejected.

I have attached some reduced sized Sample pages from the original files.

The Order was for 40 books (160 pages Cover + Text)

When we tried to print 1 copy, it printed fine. Have not tried to reprint the 40 copies.

Is this possibly an issue with the memmory on the C1000 ?

thanks in advance for any input

cheers,
Larry