I just purchased a Imageclass MF264dw a couple days ago.
When the printer enters energy saver mode it emits a high-pitched electronic vibrating sound from somewhere near the back of the printer. It does not stop emitting this noise while it is in energy saver mode. Exiting energy saver mode stops the noise. All other fuctions work perfectly.
I have tried plugging it into serveral different outlets to confirm that is not a grounding issue or noise on that circuit.
I spoke to Canon technical support about the issue. He thought that the issue may be caused by vibrations of a partially defective transformer on the power board. We thought we had a work-around by placing the computer in quiet mode. Unfortunately, right after I hung up with support, I learned that the energy saver timer overrides quiet mode.
The tech had told me that there is no way to permanently disable energy saver mode on this model. As far as I can tell this is true. I don't really want to go through the hassel of sending this printer back, but I can hear that noise from across the room.
Any ideas?
