Hello, Mullen.
I'm here to provide information about the print checks set up functionality in QuickBooks Online.
Generally, Epson printers have models that are well-suited for check printing. I recommend collaborating with an IT expert, as they can confirm whether the Epson WF-4830 is suitable for check printing in QBO. They can also assist in configuring your printer and determining if it supports Magnetic Ink Character Recognition (MICR) toner or ink, which is required for printing checks.
Since these are bank-issued checks, please know that we can't guarantee compatibility with any other check stock and you can consider checking out Intuit's Standard Checks compatible with QBO.
You'll want to visit this article to learn more about setting up your print settings: Configure your print settings for printing checks in QuickBooks Online.
Feel free to reply anytime if you still have questions or concerns about setting up your checks. I would be more than willing to provide my support, Mullen.