https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Cannon-MP-recognizes-new-printer-but-defaults-to-old-printer-for/m-p/155233#M40850 <P>I had to replace my Cannon 2100 for a 2900. I can print just fine but cannot scan using the Cannon MP software. I can scan through my windows 7 software but the MP software is much easier with better results. When I hit the scan button it just says it can't find the device and is shutting down the driver. When I go into preferrences it shows both printers under printers with the 2900 (correctly) as default. The is the only scanner that appears 2100. &nbsp;</P> Thu, 29 Oct 2015 15:16:54 GMT mariefurmanski 2015-10-29T15:16:54Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Cannon-MP-recognizes-new-printer-but-defaults-to-old-printer-for/m-p/155233#M40850 <P>I had to replace my Cannon 2100 for a 2900. I can print just fine but cannot scan using the Cannon MP software. I can scan through my windows 7 software but the MP software is much easier with better results. When I hit the scan button it just says it can't find the device and is shutting down the driver. When I go into preferrences it shows both printers under printers with the 2900 (correctly) as default. The is the only scanner that appears 2100. &nbsp;</P> Thu, 29 Oct 2015 15:16:54 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/Cannon-MP-recognizes-new-printer-but-defaults-to-old-printer-for/m-p/155233#M40850 mariefurmanski 2015-10-29T15:16:54Z