Canon Maxify Ib4020 User Guide
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6911Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.601

6920Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.602

6921Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.603

6930Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.604

6931Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.605

6932Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.606

6933Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.607

6940Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.608

6941Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.609

6942Cause Printer error has occurred. Action Turn off the printer, and unplug the power cord of the printer from the power supply. Plug the printer back in and turn the printer back on. If the problem is not resolved, contact the service center.610