Welcome to the Community forum, @schmidtfh. I'm here to ensure you can print standard checks in QuickBooks Online (QBO).

Let me walk you through the steps to configure your print settings for a seamless process:
 

1. In your QBO account, go to the +New, then select Print checks.
   
   
    
2. On the Print Checks page, click on Print setup.
   
   
    
3. Select standard as your check type.
   
   
    
4. Select View preview and print sample. Then select Print.
   
   
   
   
    
5. Follow the on-screen steps to finish printing your sample check.
6. Put the sample print under a blank check. See if they line up correctly.

For detailed steps, kindly visit: Configure your print settings for printing checks in QuickBooks Online.
 

Moreover, you may also want to check out this article to learn how to print paychecks or pay stubs in QBO Payroll: Print or reprint paychecks and pay stubs.
 

If you need further assistance or have any more printing-related questions in QuickBooks, please don't forget to mention me in your comment. I'll be here to provide the necessary support.