The typical facilities management contract is structured with either a “zero based plan” or a “minimum allowance” for impressions”. A zero-based plan only requires you to pay for impressions made. With a “minimum allowance”, you are allotted a certain number of impressions per month/quarter and, if you do not meet that minimum, then you are paying for unmade impressions.
One way to avoid this is to structure a “minimum allowance” contract with an underage mechanism and a monthly/quarterly reconciliation process to obtain credit for unmade impressions. In addition, before committing to a “minimum allowance” contract, you should first take good, reliable measurements of your printer and copier usage.