Canon MP620 poor signal and slow printing

Hi, I have a Mac Pro which is hooked directly up to my Time Capsule. I also have a Canon MP620 which is in another room. It communicates with my Time Capsule wireless and allows all my computers to print to it. My Canon MP620 has been working perfectly for a couple of months without any issues.
recently my wireless computers (3 PC's) which are upstairs were having slower then normal internet. It wasn't that much slower but I noticed that when I went to youtube to watch a video, the video continuously stopped.
My mom's computer was the worst though. The internet was very slow, pages took a very long time to load, similar to being on a 56k modem. Sometimes it was getting 1 mbps.
This would be intermittent though, sometimes the internet would be fast and other times it wouldn't be slow and sometimes my mom wouldn't be able to get on the internet.
I was having no problems printing to my Canon MP620 from any computer, it was instantaneous. To try to fix the internet for my mom's computer I tried changing the network password. So I had to go on each of my PC's and reconnect with the new Network Password.
But I couldn't print to my Canon MP620. It was labeled as inactive. I believe that changing the network password caused the printer to not be recognized by my Time Capsule. I unplugged my Printer and hooked it directly up to my Mac Pro like I did months ago.
I then put the Setup CD in, followed the onscreen instructions, It then asked me for my Network password which I gave it, it then asked me to unplug the printer and place it where it's going to stay. It then took 2 minutes to check the signal connection.
When it was done it said the signal was poor, it said that it could print but it may be slow. I'm confused why it was getting a poor signal. The printer is located in the same place that it's been for a couple of months.
When I first setup the Canon MP620 it had an excellent signal. I can print to the printer but it's very slow. Printing takes a long time for each page. I'm really frustrated, please help.

This is more of an Airport issue than a printing issue. Printers require a good connection because a lot of data is being sent, so it's to be expected that a poor connection will result in slower printing.
The reason for the sudden drop in connection quality could be radio interference. Perhaps someone in your neighborhood is using a wireless phone that interferes, or a microwave could interfere. Try to change the Time Capsule to a different channel (from within Airport Utility).

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Hi,
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Hi y'all
This is simply a summary of the steps outlined by PAHU and Kappy on the tiger print & fax page who are the big brains here that explained the steps that worked for me on Mac OS 10.5.6. Thanks and respect to those guys.
First thing to understand is the printer doesnt create its own wifi signal for the mac to pick up ( which is what I was expecting) it hooks up via your home wifi set up for which you need a wireless router. If you don't have that you are in a no go situation and will probably want to kill someone.
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4) Connect the switched on printer via USB.
5) Go to System Preferences>Print & Fax
and if no Canon MP620 shows up add the printer (click +) and choose Canon MP620 and then click on Open Print Queue. Click Utility in the top right hand quadrant.
6) Choose the USB pane and the printer should show up in the window. Click on it and click Network Settings button. Now you are in Canon IJ Network Tool - whether you realised it or not.
7) It should ask you to set up the printer for the network. Choose your home wifi name (SSID) from options and enter the password you normally use. I have a WPA and used TKIP (Basic Encryption).
8) Now you need to manually set the IP address for the router and the printer. In the TCP /IP section of Canon IJ Network Tool set the Router address to be the same as you found in Network Utility - in my case 192.168.0.1. Set the subnet mask to be 255.255.255.0 (you can double check this by looking in System Preferences>Network>Airport>Advanced>TCP/IP). Still in the TCP /IP section of Canon IJ Network Tool set IP Address to something that is the same as your router address except change the last digit eg I put 192.168.0.10 instead of 192.168.0.1. This will be the IP address allocated to your printer. Click OK and it will tell you it is sending these settings to your printer.
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BTW Canon support had absolutely no idea at all to do this although endearingkly the guy admitted that the manual wasnt very helpful........they escalated me to a higher level enquiry and said someone should phone me back. When or if they do I will email them this post!!

OK
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(assumes Mobile Me membership)
Set up Apple Mail in your Mac Pro, iMac, ... and set preferences in Mobile Me to include email stuff
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Canon MP620 simply wont go WiFi

Hey
I've been googling like a mad and reading through all MP620 topics in the Apple Discussions forum without any luck. I'm beginning to wonder if my Canon MP620 is defect.
The printer works when plugged directly to my MacBook via USB. The printer does not work via WiFi after I've put in the info for my Airport Express (802.11n & WPA/WPA2 Personal security) via the print utility tool - I can enter the info but when I try to establish the connection afterwards via the Setup tool I get a "Could not connect to access point".
Since the printer is close to my Airport I figured that I'd give up on the wireless function and just plug it in to the USB on my Airport - but that doesn't work either!! The Airport registers it, I can find the printer when I search for it on my Macbook, but when I try to connect I get an unkown error (-XXXX).
The firewall is disabled on my MacBook and after running through several setup guides I'm getting close to just returning the printer. I haven't had this much trouble with any software or hardware since I was on PC
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Hi y'all
This is simply a summary of the steps outlined by PAHU and Kappy who are the big brains here that explained the steps that worked for me on Mac OS 10.5.6. Thanks and respect to those guys.
First thing is the printer doesnt create its own wifi signal for the mac to pick up ( which is what I was expecting) it hooks up via your home wifi set up for which you need a wireless router. If you don't have that you are in a no go situation and will probably want to kill someone.
So here goes (this may take a while!!)
1) Got to System Preferences>Internet&Network>Sharing
check internet sharing
2) Open Network Utilities in Applications when you are attached to your WiFi network, choose Info (the left most pane) and check what the IP address assigned to your wireless router for your home network. mine came up under Network Interface (en1) and was 192.168.0.1 for the router. You can also check this in System Preferences>Network>Airport>Advanced>TCP/IP. Check the subnet mask there too.
3) Install the drivers for the Canon MP620 (i tried at first having used the Cd and then downloaded ones from he canon website. Now it works - this is probably relevant. PAHU says you need the Canon IJ Network tool v 2.66 to work!!
4) Connect the switched on printer via USB.
5) Go to System Preferences>Print & Fax
and if no Canon MP620 shows up add the printer (click +) and choose Canon MP620 and then click on Open Print Queue. Click Utility in the top right hand quadrant.
6) Choose the USB pane and the printer should show up in the window. Click on it and click Network Settings button. Now you are in Canon IJ Network Tool - whether you realised it or not.
7) It should ask you to set up the printer for the network. Choose your home wifi name (SSID) from options and enter the password you normally use. I have a WPA and used TKIP (Basic Encryption).
8) Now you need to manually set the IP address for the router and the printer. In the TCP /IP section of Canon IJ Network Tool set the Router address to be the same as you found in Network Utility - in my case 192.168.0.1. Set the subnet mask to be 255.255.255.0 (you can double check this by looking in System Preferences>Network>Airport>Advanced>TCP/IP). Still in the TCP /IP section of Canon IJ Network Tool set IP Address to something that is the same as your router address except change the last digit eg I put 192.168.0.10 instead of 192.168.0.1. This will be the IP address allocated to your printer. Click OK and it will tell you it is sending these settings to your printer.
9) If you have been struggling with this for a while you may need to enter the printer Settings section choose Device Settings and then LAN settings and choose reset LAN settings to start again.
10) You know you are winning when you chooses Wireless LAN settings list and things look similar to what you entered on the mac. So unplug the USB and on the printer choose change wireless/wired to wireless.
11) Now go back to System Preferences>Print & Fax and delete the Canon MP620 entry by pressing -. Then press + choose More Printers, wait a while and select MP620 in Canon IJ Network when it shows up or choose Canon IJ Network if you get the option . The printer should be there as MP620 with a numerical address next to it. Choose that. You should be off. (NB Repeat step 11 for any other macs on the network after downloading and installing the printer driver to that mac)
12) Now when you chooses Wireless LAN settings list on the printer it should say active.
Print away.
BTW Canon support had absolutely no idea at all to do this although endearingkly the guy admitted that the manual wasnt very helpful........they escalated me to a higher level enquiry and said someone should phone me back. When or if they do I will email them this post!!

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When I want to use the printer the "Canon IJ Network" is not available. This option should be present when I click on "More Printers" in the "Printer Browser" (others protocol like AppleTalk are listed).
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I reinstalled, download the last version from Canon web site, repaired authorizations, ... without success.
Any idea and help are welcomed !

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My Canon MP620 appears to be connected, yet every time I try to print something, it says error. I have tried to unplug and track the error, but I cannot figure out why. Please help! this is such an inconvenience!

What Mac model? What Mac OS version?
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