Page: 127Service Guide ML390/391Chapter B Illustrated Parts ListingB.1.02 Definitions of TermsRSPLOkidata recommends that this part/assembly be on hand for servicing.ConsumableA consumable is a supply item which has a specified life and needs to be replaced periodically. It ispurchased and installed by the end user. Okidata machines are designed to workexclusively with Okidataconsumables. By using genuine Okidata consumable products, the investment made in the equipment willbe protected.OptionAn option is a part/assembly which is added to a product and expands the products functionality. Anoption may or may not be installed by the end-user. Instructions for installation accompany each option.Option RSPLOkidata recommends that this part/assembly be on hand for servicing installed options.DocumentA document is a printed item which supports the service and marketing of a product. Various documentsare available from Okidata.BlankOkidata does not recommend stocking this item. This item should be purchased on an As RequiredBasisonly. The availability of this item is NOT guaranteed by Okidata.390This part is found ONLY in the Microline 390 printer.391This part is found ONLY in the Microline 391 printer.390 +This part is found ONLY in the Microline 390-Plus printer.391 +This part is found ONLY in the Microline 391-Plus printer.BothThis part is found in both the Microline 390 and 391 printers.Both +This part is found in both the Microline 390 and 391-Plus printers.Both 90This part is found in both the Microline 390 and Microline 390-Plus printers.
