I have a serial cable attached and the printer sends only the ??????? character rather than actually sending any print to the Epson printer. I have the code correct, and even tried to test it out on wordpad but still the same results. The test print from the printer itself is ok, but the test print from the PC to the printer again shows the ???? characters. The HEX dump says hex dump, but nothing else shows up. I have an XP os and the correct Driver for this partial cut Printer.