Updating

System

Software

Macintosh

If the current print system software is not functioning, you must connect your Macintosh to the printer’s serial port to reinstall the system software. The downloading procedure will not work over the LocalTalk or CrownNet interface in this case.

»Note: This downloading procedure requires a connection from the Macintosh’s serial port (either the modem or the printer port) to the printer’s serial port. The cable must have a DIN-8 female connector on the Macintosh end. It must also must be wired as a null modem or it must have a null modem adapter. The type of connector for the printer’s serial port end of the cable depends on the type of null modem assembly. Your Macintosh vendor can provide you with this equipment, or you can use the “Cable Pinouts” section of appendix B, “Technical Specifications,” if you want to make your own cable.

1Connect the Macintosh to the printer’s serial port.

You can use either the printer or modem port on the Macintosh. However, the modem port provides the fastest download.

»Note: To use the printer port you must first disable AppleTalk in the Chooser.

2Turn on the printer.

3When the control panel indicators stop flashing (the mes- sage window will remain blank since the printer is non-func- tional), send the new system software file SYSTEM.DL to the printer.

a At the Macintosh, double-click the SystemLoader icon.

bIn the dialog box that appears, make sure the correct download port is selected, and then choose the Send button to start the download.

The downloading process takes about 10 minutes, depend- ing on the size of the file and the speed of your Macintosh. The Ready indicator blinks as the new system image is writ- ten to flash ROM. After the updated system software has been written to flash ROM, the message Download Com- plete! appears on the Macintosh screen, the printer

Printer Options

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