Canon PIXMA MX472 Scanner issues

Try Applications/Image Capture and/or VueScan.

VueScan

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juslill wrote:

Have a Canon PIXMA MX472 wifi printing works perfectly, scanner will not work.

If you are trying to use Image Capture to scan, then this requires an ICA driver. To check if the supporting ICA driver for the MX470 series is installed open System Information (located under Applications > Utilities) and in the left column under the heading of Software you will see an entry called Printer Software. Select this and you will see in the top right pane an entry of Image Capture Devices. Select this and in the bottom right hand pane should be 3 entries showing CanonIJScanner14s.app and a version of 4.0.0. If these are present then this confirms that the supporting ICA driver has been installed.

Then with Image Capture open, a networked device will appear under the heading of Shared. Do you see the MX? If not, then you could have an issue with the Bonjour protocol on this Mac, which other Yosemite users have experienced. When you added the printer, did it appear as Bonjour Multifunction or Canon IJ Network. If this former, then this would suggest that Bonjour is okay on your Mac. If you cannot remember, open Printers & Scanners and click the plus button to add. With the Default view selected the MX should appear. What does it show in the Kind column?

juslill wrote:

The printer appears as Canon IJ Network. I don't see anything about Bonjour. Now what should I do?

Thanks for checking this. So you also have a Bonjour issue with the OS. I'm not sure how to resolve this for scanning. For printing you have the alternate protocol you see or you can create a direct connection to the IP address used by the MX. But for the scanner component, the supporting software relies on Bonjour.

Have you tried using the Canon IJ Scan Utility for the MX? I don't have a Canon device here at home that uses this software so I'm not sure if it also relies on Bonjour to discover the network device or uses some other protocol like SNMP to locate the MX.

Thanks for testing that. At work I have access to other Canon models that use the same utility so I will do some testing tomorrow and report back here.

Testing today has shown that the Canon IJ Scan Utility relies on Bonjour to discover the networked scanner. So with Bonjour not working on your Mac, you are not going to be able to scan via the network. If you don't scan often then you could connect the MX to the Mac via USB cable when you do need to scan. But if you scan a lot then you may need to make a backup of your date and wipe the Yosemite partition and install from the Recovery partition or create a Yosemite boot USB stick.

As I don't have a Mac where Bonjour is not working, could you check a couple of things?

1. Open Activity Monitor and select View > All Processes. Do you see the entries "discoveryd" and "discoveryd_helper"?

2. Open Console and with All Messages selected type discoveryd in the filter section in the top right of the window. This will filter and only show entries that mention the discoveryd process. Do you see anything mentioning that the process has failed?

i have the same problem with Canon MG 7120

i have been on the phone with canon and tried every thing

only the printer work wirelessly

the scanner work only if i connect USB

juslill wrote:

Just found this reference to Bonjour:

3/11/15 10:11:11.234 AM discoveryd[49]: Basic Bonjour,Warn Warning: IPv6 listener multicast send failed en1, 49

3/11/15 10:11:13.509 AM discoveryd[49]: Basic Bonjour stop listening on en1

Ok. This does appear to be the issue. If Bonjour has stopped listening on en1, which is your wifi connection, then you are not going to see the scanner component of the MX.

I do want you to check another thing. You can see in the first line a mention of IPv6. Can you open System Preferences > Network and select the wireless connection in the left column. Then in the right pane click the Advanced button. In the next window under the TCP/IP tab, you will see the IPv4 address being used by the Mac. Is there any information set for the IPv6 address?

fahdfrommontreal wrote:

i have the same problem with Canon MG 7120

i have been on the phone with canon and tried every thing

only the printer work wirelessly

the scanner work only if i connect USB

If you open the Console application, ensure that All Messages is selected in the left column and then enter Bonjour in the Search section in the top right corner of Console, do you see similar results to juslill about Bonjour stopping.

PAHU wrote:

fahdfrommontreal wrote:

i have the same problem with Canon MG 7120

i have been on the phone with canon and tried every thing

only the printer work wirelessly

the scanner work only if i connect USB

If you open the Console application, ensure that All Messages is selected in the left column and then enter Bonjour in the Search section in the top right corner of Console, do you see similar results to juslill about Bonjour stopping.

Yes I have the same last one

Basic Bonjour stop listening on en1

Is there any other data next to the entries of Router, IPv6 Address and Prefix Length? Or all these fields empty? If they are empty then it shows that IPv6 is not being used and only IPv4 is being used for your wireless connection.