When the Lantastic spooler gets corrupted, graphic information does not get sent to the printer. You need to contact Artisoft to get instructions on how to regenerate the spooler.
The LaserWriter 16/600 PS printer requires a CTRL-D at the end of a print job to flush the buffer and cause the job to print. The CTRL-D is not being placed at the ends of your print jobs, this is why it sometimes takes two tries to print. You can manually flush the printer but pressing the combination of CTRL-ALT-PRTSCN keys.
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