Hi Barbara. My name is***** am a computer professional with over 15 years of experience with both Mac and Windows computers, phones, tablets, and printers. It would be my pleasure to assist you with this.
In order to provide the best possible help, I will need to know what operating system you have on your computer. If you're not sure, please click this link and tell me what you see:
My guess is that you need to select your MG7100 printer before you click print. If you will tell me what your OS is, I can provide detailed instructions for you.