topic Re: MFC731cdw wakes up and scans randomly in Office Printers

MFC731cdw wakes up and scans randomly

sjlee0 — Sun, 21 Aug 2022 00:22:34 GMT

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.

Re: MFC731cdw wakes up and scans randomly

sjlee0 — Tue, 23 Aug 2022 03:08:36 GMT

I decided to turn off the printer for the most part and turn it on only when I need it. Not really what I want to do but we don't want to get annoyed all day...

Re: MFC731cdw wakes up and scans randomly

dexman335 — Wed, 24 Aug 2022 02:36:06 GMT

If the unit doesn't have any complex programming, try defaulting the printer and see if that resolves the issue. If that doesn't work, consider reaching out to Canon Customer Support. If they can't fix the problem, either turning it off when not in use or sending it out for repair would likely need to be next step.

Re: MFC731cdw wakes up and scans randomly

sjlee0 — Wed, 24 Aug 2022 03:17:06 GMT

Thanks. I've already tried resetting it to the factory default, but amazingly it still does it.

Re: MFC731cdw wakes up and scans randomly

dexman335 — Wed, 24 Aug 2022 04:23:18 GMT

1 more test. If the unit is connected via Ethernet, try disconnecting the cable and see if it still wakes itself up. If it is connected via WiFi, disable it and see if that changes anything. The idea is to isolate the printer from everything to see if it is receiving some sort of signal from a device. 🤔

Re: MFC731cdw wakes up and scans randomly

sjlee0 — Fri, 26 Aug 2022 03:33:13 GMT

Well, that did it. Interestingly when I disconnected from wireless connection and reconnected it, that seems to have fixed the problem. Thanks!

Re: MFC731cdw wakes up and scans randomly

dexman335 — Fri, 26 Aug 2022 03:41:44 GMT

Thank you for the update! Hopefully this resolved the issue. 🙂

Re: MFC731cdw wakes up and scans randomly

vbaliukynas — Tue, 26 Sep 2023 08:48:57 GMT

To be honest, that's not a solution. I have the same issue at the office. Putting printer offline is not a solution because people are using it.

Re: MFC731cdw wakes up and scans randomly

dexman335 — Tue, 26 Sep 2023 09:56:12 GMT

The solution from last year resolved the problem for the other user. What troubleshooting steps have been taken to attempt to resolve the problem for your printer?

Re: MFC731cdw wakes up and scans randomly

vbaliukynas — Tue, 26 Sep 2023 10:09:14 GMT

Updated firmware
Reconnected device to the network

Also I did try to look for Scanning logs but such thing does not exist on this device. I could suspect a device on the network is attempting to scan every once in a while but without logs how the f*** I am supposed to know?

Re: MFC731cdw wakes up and scans randomly

dexman335 — Thu, 28 Sep 2023 02:06:46 GMT

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.

Re: MFC731cdw wakes up and scans randomly

vbaliukynas — Thu, 28 Sep 2023 04:18:40 GMT

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.

Re: MFC731cdw wakes up and scans randomly

dexman335 — Thu, 28 Sep 2023 07:42:27 GMT

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. 🤔

Re: MFC731cdw wakes up and scans randomly

theroman — Tue, 27 Feb 2024 21:36:12 GMT

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.