My printer doesn't respond correctly to the HP 95LX print commands. What do I do?

First make sure that the HP 95LX and the printer are both set to the same baud rate. Then check that the HP 95LX printer driver being used is one that the printer is able to emulate. To check this on the HP 95LX, start the SETUP application by pressing <Shift>-<FILER> and then press printer. This will display the set-tings that the HP 95LX is using. Use the Serial Cable Adapter Kit, part number HP 82224A, to connect the HP 95LX serial cable to a serial printer.

Next, check to see that hardware handshaking is disabled on the printer. This is often done with DIP switches on the printer. Look in your printer manual for instructions. Hardware handshaking is usually done with pins 4, 5, and/or 20. These are not available on the HP 95LX serial port. By disabling the use of these pins, printers are forced to look to pins 2 and 3 for software handshaking-based communication with the HP 95LX.

Finally, check to see that the printer is set up to receive data in the format that the HP 95LX sends it: 8 bits, 1 stop bit, 1 start bit, and no parity bit.