The error message you are getting:
"Your request <print job name> destined for <printer name> encountered an error while printing on printer <printer name>. Printing stopped with an exit code of 2." (Error code 2 is file not found.)
Solution
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Step 1
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Replace the /etc/printcap file with an original copy
Step 2
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Reinstall the LaserWriter 810 software to a directory called /usr/apple
Step 3
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Rerun the software installation (enstall -b)
Running from the hard wired /usr/apple location appears to make the correct printcap entries, so no errors are reported.