Help with Canon MX870 - scanner stopped working

My MX870 also just stopped working over the network. I also deleted the printer and reinstalled and can now print, but it does not recognize the scanner. I have not been able to fine a fix.

Hello again.

Navigate to the menubar and click the Canon Network Scanner icon

This will open the 'Scan from PC' window as shown below. Ensure that the MX870 as a networked device (shown with the MAC address) is selected.

Marlinespike wrote:

However, I went to take a screenshot and something very weird happened. It popped up a dialog box where the scanner was checked as shown in your screenshot with an 80.????? IP address (the ? are because I don't recall)

The 80 number would have been the MX870 wifi network address - not the IP address. The scanner selector tool does not show the device IP address, only the network address.

...asking if "Canon IJ Network Scanner Selector 2" could accept incoming connections from the network and there was a 3rd choice listing the scanner as "Canon MX870 series_3DXXXXX (where I am putting in Xs because I suspect it is a serial number).

Based on this I would guess that the firewall is enabled on your Mac and the prompt is to add an exception to for the networked MX870 (and the X's are the last digits of the wifi network address shown in the selector tool) so that communication can flow between both devices.

My MX870 is now working over the network ok. We lost power yesterday, which I assume caused the Time Capsule router to reset. I assume that the router was the real cause of the problem

Thank you Pahu. . I was struggling with the same problem so well described by Marlinespike. Your advice was invaluable. I wonder why this stuff can't be found in the Canon literature?

I too have now just got a new router and have set up my mx870 to print but can't find the scanner now. I have used the scanner utility and have highlighted what i need but can't add the scanner to the print/scan list. Any thoughts from anyone?

If the scanner component does not appear in the Default Add Printer view, then disable the WSD setting in the MX. This has been known to interfere with the Bonjour protocol, which is used by the scanner component of the Canon AIO's.

Thanks Pahu. I disabled the WSD setting and the scanner selector shows that the scanner is there and I have checkmarked it but i still can't see the scanner to add to the print/scan in systems. Any thoughts? Printer is working fine now for all the networked printers, just no scanning.

Thanks

If you open Safari and select the Bookmarks link in the toolbar, and then select Bonjour in the Bookmarks sidebar, do you see the MX870 in the top right pane?

Thanks for getting back to me. When i open safari and then click on bonjour on the right I do not see mx870 anywhere on the page i just see about bonjour.

Thanks for checking that. With no MX870 in the Bonjour view the first thing to do is check that it is enabled in the MX. If you know the IP address of the MX then you can connect to its internal web page by typing its IP address as the URL in a web browser. If you don't know its IP address then on the MX you can go to Setup and select Device Settings > LAN settings > Other. Bonjour should be listed in here and you can enable or re-enable it. Then turn the power off for a minute and back on and check the Bonjour view in Safari again.

Thanks PAHU,

I did both of the above and did type in the IP address which did take me to the MX870 page. I am able to print from all of the networked printers so the connection is there (btw I still couldn't see the MX870 in the Bonjour). I just can't seem to get the scanner to appear in the print/scan preferences. When I do the IJ network scanner it seems like it sees the scanner there but i can't get that as a choice to add to scanners. Also just to be clear, given the name of this thread, i am using Lion, not snow leopard. Any other ideas you have would be fantastic. I have also tried downloading all of the latest drivers. I have also taken the printer off and put it back on without success. The router I am using is a cisco EA4500.

Thanks again.

With regards to the internal web page of the MX, when you connect and select the Advanced button and then select the Other Settings menu, was the Bonjour setting shown as Enabled?

Because if it is Enabled, then when you open Print & Scan and click the plus button, you normally see a drop menu showing Nearby Printers and Nearby Scanners. And here you should see the Canon MX870 series appearing under both headings.

With Bonjour enabled but the scanner not showing, then other causes could be the mDNSResponder service not running the Mac (which you can check via Activity Monitor) or a firewall blocking the 5353 port used by Bonjour.

The Bonjour is enabled. But i just realized that the printer is printing through canonijnetwork rather than bonjour. The printer is not recognized through bonjour. I still can't see the scanner. There is no mDNSResponder service that i can see on the activity monitor. I am unsure how to check the firewall?