How to unvoid void Checks

Hello All - Can you pls let me know if it is possible to unvoid the void checks and reuse them.

Our User voided the Checks (FCH8) around 100 Checks as Checks were not printed due to printer issue.

As these are Pre printed Checks and did not use Physical Checks, but voided only in SAP, User is checking if these can be reused.

I have tried to delete void data for these Checks from FCHG, It is not happening.

Pls share your inputs.

Thanks