BEFORE YOU START: Make sure that the print driver has been installed properly on the customers software then attempt to print to a known-good Imagewriter.
CAUSE: The Option card is bad (even though the self-test generates no errors).
CURE: Remove the 32K Option Card and test the printer with the Macintosh connected to the ImageWriter II. Boot a program such as MacWrite and print to the ImageWriter II. Swap the Option Card with a known good one and try to print with MacWrite again.
Refer to General Troubleshooting for the ImageWriter II if the printer still does not print.