Hi completeaccessfl,
At this time, we're unable to print checks in QuickBooks Online (QBO) Mobile app. You'll want to log in to your account through a web browser on your device and create a check from there. However, a check number is required to print the form.
Then print the check directly to your wireless printer. Just make to install an Adobe Reader on your mobile phone.
- Click on the + New button and choose Check.
- Enter all the information.
- Click on Print check and select Preview and print.
- Follow the onscreen instructions to print the check.
I've added an article that will help align your checks when printing.
We'll be around if you have further questions. Have a good day.