Which check printing option requires ordering check stock in advance and using separate stock for each checking account?

The option requiring ordering check stock in advance and using separate stock for each checking account is pre-printed check stock. This method involves purchasing checks that already have the company's logo, bank information, and sometimes a unique check number printed on them. Each checking account must have a distinct set of checks since the bank account information is embedded in the pre-printed checks.

In contrast, digital check printing and blank check printing offer more flexibility in terms of design and account management, as they typically do not necessitate pre-ordered stock specific to each account. Manual check printing does involve printing checks on standard paper but does not require pre-specific stock for different accounts. Thus, the requirement for ordered and separate pre-printed check stock for each account distinctly aligns with the nature of the pre-printed check stock option.