The error you are getting (-27949 internal_font_error) is caused by a corrupted or GX-incompatible font. One way to troubleshoot this error would be as follows:
Step 1
Drag the Fonts folder from the System Folder to the desktop and restart the computer.
Step 2
Try to print the desktop. If successful, go to step 3; if not, perform a clean install of System Software.
Step 3
Move 5-10 fonts back into the System Folder and restart.
Step 4
Try to print the desktop. If successful, repeat steps 3-4; if not, one of the last fonts installed is the problem. Isolate the bad font and remove it.
Once the bad font is found, reinstall a clean copy. If problem persists with the fresh copy of the font, contact the developer of that font for a GX-compatible update.
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