Hello @info18
Welcome to the Community. I'd be glad to assist you with printing your deposit slip.
Although you didn't print the deposit when you originally made it, this transaction can be printed anytime. All you will need to do is open the deposit, select Print at the bottom of the screen, choose what to print, and then select Print again. I've included a brief video to serve as a reference:

For more information on deposits, @Anonymous has a thread in the Community that I recommend: How to Record Bank Deposits in QuickBooks Online.
That's it. I'm sure that you'll have the deposit printed in just a few clicks.
Please know that I'm here if I can be of additional help. Wishing you a wonderful week ahead.