Canon PIXMA TS6250 Online Manual page 31

11. Click Browse (J) in From computer: and select folder with photos you want to print.
12. Click photos (K) you want to print and select Open (L).
For Windows:
To select two or more photos at a time, click photos while pressing the Ctrl key.
For macOS:
To select two or more photos at a time, click photos while pressing the command key.
13. Specify number of copies and other options under Print Settings (M).
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