https://community.usa.canon.com/t5/Professional-Photo-Printers/Serial-number-anomaly/m-p/163319#M2846 <P>Just in case it helps others:</P><P>&nbsp;</P><P>After installation I tried to register my new Pixma Pro 10s using the serial number that its Windows properties box displays. &nbsp; This serial number does not work to register and I had to use the number on the packing box. &nbsp; (Just too awkward to 180degree turn the printer just now to see the tiny serial label on the back)</P><P>&nbsp;</P><P>So why two different numbers?</P><P>&nbsp;</P><P>Ian</P> Tue, 02 Feb 2016 13:54:58 GMT beemer 2016-02-02T13:54:58Z https://community.usa.canon.com/t5/Professional-Photo-Printers/Serial-number-anomaly/m-p/163319#M2846 <P>Just in case it helps others:</P><P>&nbsp;</P><P>After installation I tried to register my new Pixma Pro 10s using the serial number that its Windows properties box displays. &nbsp; This serial number does not work to register and I had to use the number on the packing box. &nbsp; (Just too awkward to 180degree turn the printer just now to see the tiny serial label on the back)</P><P>&nbsp;</P><P>So why two different numbers?</P><P>&nbsp;</P><P>Ian</P> Tue, 02 Feb 2016 13:54:58 GMT https://community.usa.canon.com/t5/Professional-Photo-Printers/Serial-number-anomaly/m-p/163319#M2846 beemer 2016-02-02T13:54:58Z