I can walk you through on how to print checks in QuickBooks.
Go to the + New.
Select Print Checks.
Load your checks into the printer.
Choose the bank account containing the checks you wrote that need to be printed.
In the Starting check no. field, enter the check number of the first check in the printer. The check number is found to the right of the account number at the bottom of the check.
Select Preview and print.
If everything is correct, select Print.
If your checks printed OK, select Done.
You can read through this article for more detailed insights: Print checks.
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