You can print your own checks from your computer and printer using a regular printer.
You'll need some check printing paper though to print the checks on otherwise the checks won't be accepted by the banks.
So you'll need to buy some check printing paper and also you'll need some check printing software for your computer that you can buy online and download and install on your computer.
Then you can print the checks out with your routing number and checking account number and name and address on your checks.
Then the checks can be used like normal.
Or you can just go online and order checks cheaper than the bank and they will send you the checks and print them out for you.