Causes: • Check centronics cable connection. • Check what type of print driver has been installed. • Check I/F part of parallel port. 1 Check the initial state of J2 print control signal of CON8.: No.1, 10 - 14, 31, 32, 36 2 Check input and output signal of U4. 3 Check input and output signals of U16-43 - 51 and U16-53 - 61.
Remedy: • Connect it correctly. • Install the print driver again and reboot the system. • Replace the main PBA.