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Sorry for the delay - you were not online when I first responded to your question, and I have been offline since.
In the Print Settings menu, go to Print Size. Select Actual Size from the drop-down menu.
Let me know if that works?
Where are you making this selection?
Would you prefer remote assistance with this question?
Hello Annette, my name is ***** ***** I will do my best to assist you.
To get started, I need to know what type of computer you're using.Windows XP, Widows Vista, Windows 7, Windows 8, Or a Mac.If it's a Mac, please check the OSX version as follows.Click the apple sign at the top left of your screen, then click about this mac. And then where it says version, send that to me as a reply.
Allright, part of whats probably happening here is that the printers driver settings are over riding the settings you are setting manually when you try to print through photoshop.
Another issue youre facing is that printer does not have a windows 10 driver listed on the canon website.. You can see by checking the driver downloads on this page
So what version of windows driver are you using.. Windows 7.. Windows 8 ?
One thing I can say, and it isnt exactly clear from that message but this may help with the initial issue you mentioned.
Is that when you choose borderless printing, the software will artifically enlarge the printed image to make it "borderless" This is from canons FAQ on borderless printing.
""In borderless printing, an image will be slightly enlarged. Thus, the edges of the image will not be printed since they are extended off the paper.""
If you want true to size pictures printed, you dont want to choose borderless printing as that will extend and increase the size of the pictures you are selecting.. This is true regardless of what program you are printing from or what settings you choose after you choose borderless printing..