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Chapter 16: OperationsChecking Consumable SuppliesIf you run out of the magnetic toner cartridge for the check printer, you will not be ableto generate checks out of the system. At this point, either you cannot print checks to payyour vendors, or you have to manually type the checks (if you have blank manual checkstock on hand).Special or custom supplies such as the following require special consideration: Special magnetic ink toner cartridges to print the MICR characters on checks.Not every computer supplier will stock these special cartridges. Preprinted forms (with company header, instructions, or other custom printing).Due to the customized nature of these items, there is usually a significant lead time torestock these items.If it is a critical item, stock extras, the first spare may be bad or defective.Murphy says: “When you need something immediately, it will be Friday evening andvendors and stores will be closed.”To check consumable supplies: Check the expiration date on supplies that are subject to aging.This check applies to supplies currently being used and those in inventory (not yet inuse). Check supplies that have a “time in service” expiration, such as hours, cycles, etc.Certain DAT tapes are rated for 100 full backups. After that they should be discardedand replaced with new tapes. (This usage limit can be entered into the SAPDBA controlfile for Oracle.) Keep in touch with your purchasing agent and the market place.Market conditions may make certain supplies difficult to purchase. In such conditions,the lead time and quantities to be purchased need to be increased.For example, at one time, 120 meter DAT tapes cartridges were difficult to buy, at anyprice. Track usage rates and adjust stocking levels and purchasing plans as needed.System Administration Made Easy16–43