I lost the disk to install my cannon pixma mp830 all in one printer and when i connect it to the computer i am currently using and try to print all the pages print out small at the top right corner. where can i download the installation software and how do i change the settings so it prints the full paper size?

Drivers for your printer and operating system can be downloaded here:

http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_mp_series/pixma_mp830#DriversAndSoftware

Sounds like something has altered your Printing Preferences rather than a problem with the printer. For Windows 7, go to the Start Menu, open Device and Printers, right click on your printer icon and choose Printer Preferences, got to Features and check the setting Resizing Options; should be set to Letter.

If you need a Guide or manual for your printer it is available here.

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