No.
Sorry to be blunt, but even though ink-jet printers use the same CMYK ink model that our printing presses use the actual inks are far from identical. If you printed your design on an Epson inkjet, an HP inkjet, and a Canon color laser printer, they would all look at least a little different, because each company manufactures their inks a little differently. Since your printer and our press are not calibrated to each other, we cannot accept your printout as an accurate color guide.