MFC731cdw wakes up and scans randomly

[sjlee0]

My Canon MCF731cdw printer started doing something weird. It periodically wakes up and does a scan by itself although no scan was initiated or there is no paper on the glass plate. It seems to be doing it every few minutes.

I tried canceling the spurious scan job, but it doesn't seem to stop it. Power cycling it doesn't help. I also reset the entire settings of the printer, but this continues. Does anyone know why this is happening and how I can stop it? This is getting really annoying.

Thanks.

[dexman335]

Would it be possible to connect the printer to the network via an Ethernet cable as opposed to Wi-Fi? 🤔

Another step to try during downtime would be to default the unit and program it from scratch. Lastly, if all else fails, contact Canon Customer Support.

[vbaliukynas]

It is already on LAN. 
It seems that this happens then one of the clients joins the network. For example, yesterday morning the printer woke up at 9 am and started printing randomly only at 9:56 am. That is why logs would be amazing in this case.  

I have already contacted the vendor I have acquired this device from. 

[dexman335]

Canon Customer Service could be another go-to for technical support.

My church's 733 and my personal 743 both operate as expected, thus I'm scratching my head over this unusual behavior. 🤔

[theroman]

I know this is an old thread, but I've been having this same issue with my new Canon ImageCLASS MF656Cdw and I think I figured out an acceptable solution. In the printer menu, I went to Function Settings -> Common -> Scan Settings -> Auto Online and turned it from On to Off. This seems to have stopped the regular awakening and remote scanning. As far as I can tell, this now requires that I need to manually put the printer into remote scanning mode before commencing scanning, which I guess is fine. Better than keeping the printer off by default, which is what I've been doing for some time.