NETWORK SCANGEAR 2 TOOL CAN NOT FIND CANON IR2520i connected to the computer by usb cable

Is the copier connected in the network or thru USB? Because Colour Network ScanGear is used when copiers are connected to the network.
If it is connected to the network, run Network ScanGear Tool and search for connected scanner in the network. Or you can use the IP Address of the copier to find it on the network.
Use 3rd party software or any other software that have scanning/import function (e.g. Photoshop).

The Machine must be connected to a network.Download Network Scangear software driver from the Canon webside,install it on your destop.After installation open the Scangear tool and select the discover button.The scangear will search for the machine on the network.As soon as it has discover the machine the ip address will show in the tool.Select the Machine and close the scangear tool.Select the scan button and set it to online.
Now you can scan in to a program like word or exel by Insert a picture from scanner.

maybe <url=http://printmail.oregonstate.edu/ocp/pdf/NetworkScanGear.pdf>this</url> can help.

Had the same problem with my Canon IR2018i... After spending about all day stuffing around and ready to give up... I read in the Color Network Scangear User Manual that
"Only scanners on the same subnet (network with the same network ID) as your computer are displayed in the list"
So I went the the TCP/IP settings on my copier and changed my subnet mask from 255.255.255.0 to 255.255.255.255 and magically my scanner appeared....
Give it a go...

Read the Manual (comes with Tool). If you don't have the Tool download it from the Canon site. Go to the copier and press the System/Options button next to Copy/Mailbox/Fax. Press Online. Then try scanning. Go back to copier and press Offline so can photocopy again.

the scangear by network is not for this machine .only for usb.

Download the network scangear from the canon web site.
Install the scangear on all the computers you want to scan to.
On the scangear tool there is a discover icon,click that icon and wait till the ir 5000 is picked up by the network.Select the machine in the scangear tool.Now you will be able to scan to mirosoft word and exel like you normally do with a scanner.
If the scangear tool was unable to discover the machine,the network settings of the IR must be checked.
Hope this help.

run the network scangear utility from the start menu. Click "discover scanner", when the discovery is finished select your copier and then click apply.

Sorry that was actually me...after i posted...it asked me to register...so i did.

Okay, you need to download Canon Network scangear from the Canon website. then take your document...put it on the top feeder...turn you scanner online...open up microsoft word 2003..insert, picture....from scanner or camera select network scangear....custom insert....then scan. The machine needs to be hooked up to a network...but note...a simple cross over cable or usb between pc and the photocopier will not work.

It looks like the computers have a hard time communicating with the scanner it will be advisable to download all the current firmware available, her is the link:
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=235&modelid=13810#DownloadDetailAct
This should take care of the problems.