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I suggest that you clear out the printer queue of any print jobs that are in it, do a restart of your computer, and also shut off the printer while doing so, until the computer has fully restarted. (If more than one computer prints to this printer, I advise clearing the queues on every such computer, and restarting them also.)
Then, you might (if that does not clear up the problem) need to do an uninstall, restart and reinstall, of the printer driver on the computer(s) that are producing this problem or that were found to have documents in the queue for this printer.
To give you instructions on how to go about a proper uninstall-restart-and-reinstall, please tell me what Windows version is on the computer, and whether it is the 32-bit or the 64-bit system type.