Step One
Enter the NFT's contract address. You can easily find this within the Opensea URL.
e.g opensea.io/assets/ethereum/0xContractAddress/tokennumber

Step Two
Enter the Token ID (without the #) and hit Create.

Step Three
Your image will generate. Scale the NFT if you like. Your QR code will display which links directly to the Opensea URL for the token.

Printing Resolution
NFTs are created a various resolutions and sizes. Files are downloaded in the original NFT's resolution and size. If you have questions regarding printing please reach out to the NFT Project.