account-financial-tools/account_check_deposit/readme/USAGE.md

When you receive a check that pays a customer invoice, you can go to that invoice and click on the button Register Payment and select the Checks Received journal as Journal.

When you want to deposit checks to the bank, go to the menu Invoicing > Customers > Checks Deposits, create a new check deposit and set the journal Checks Received and select the bank account on which you want to credit the checks.

Then click on the button Get All Received Checks if you want to deposit all the waiting received checks, or select the checks one by one by clicking on Add a line.

Eventually, validate the deposit and print the report (you probably want to customize this report).