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"An unknown error occurred while printing"

Posted: Sat Sep 07, 2013 5:33 pm
by MossyRock
I'm using doPDF on multiple machines successfully, and have been for years, but on a Lenovo laptop running Win 7 Pro 64-bit, it suddenly stopped working, giving the messages:

"Preparing..."

then:

"An unknown error occurred while printing".

Several times, I've uninstalled doPDF, rebooted, installed the latest version, rebooted, and still get this error. I don't know what to try next. doPDF is not set as the default printer. It doesn't matter what I try to print, or from where. There is nothing in Windows Event Viewer related to the error.

Any ideas?
Thanks.