Specifications

Troubleshooting Printing with 8.3 Driver/EPOST Error Codes - 14
Printing with 8.3 Driver
For purposes of troubleshooting paper feed, you can print with the
LaserWriter 8.3 driver from Mac OS computers. Simply copy the
PPD for the LaserWriter 12/640 PS into the Printer
Descriptions folder in the System Folder, select the printer
through the Chooser, and click on Setup.
You can print duplex jobs by clicking on the Options button in the
print dialog and making the appropriate selection. However, you
cannot print to the face-up tray with the 8.3 driver.
Note : The LaserWriter 12/640 PS PPD is available on the June
1996 Service Source CD (path: Service Source:Service
Manuals:Clips).