I am using a YMAHA guitar RGX-A2 and when I plug in my guitar, the computer can't 'see' my guitar....

Help Me!!! I need to use the computer as an amp for the guitar test....

You didn't mention any color calibration being done on your monitor.  This is an essential part of any color-correct workflow.  What are you using to calibrate your monitor (and your printer)?
Print profiles (for soft-proofing as well as printing) are for specific combinations of paper & printer.  The nine you have are each, most likely, for a common paper (perhaps mfr'd by Canon) to be used with your printer.
I don't know what you mean when you say "I choose a high standard print option".
Have you read the User Manual chapter on printing?
Printing Your Images
There is also a good appendix on calibration:
Calibrating Your Aperture System

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