you have any doubts about the envelopes you are considering using, check with the envelope supplier.l Adjust the width guide to fit the width of the envelopes.l Load an envelope with the flap side down and with the stamp area on the top left side. The end of the envelope with the stamp area enters the Multi-purpose Feeder first.See "Using the Multi-purpose Feeder" for instructions on loading an envelope.LabelsYour printer can print on many labels designed for use with laser printers. These labels are supplied in letter-, A4-, and legal-size sheets. Label adhesives, facesheet (printable stock), and topcoats must be able to withstand temperatures up to 195° C (383° F) and pressure up to 25 pounds per square inch (psi). Youcan load one label sheet at a time in the Multi-purpose Feeder.Try a sample of any label you are considering using with the printer before purchasing a large quantity:l Use full label sheets. Partial sheets may cause labels to peel off during printing, resulting in a jam. Partial sheets also contaminate your printer and yourcartridge with adhesive, and could void your printer and cartridge warranties.l Use labels that can withstand temperatures up to 195° C (383° F) without sealing, excessive curling, wrinkling, or releasing hazardous emissions.l Do not print within 0.04 in. (1 mm) of the edge of the label, of the perforations, or between die-cuts of the label.l Do not use label sheets that have adhesive up to the edge of the sheet. We recommend zone coating of the adhesive at least 0.04 in. (1 mm) awayfrom edges. Adhesive material contaminates your printer and could void your warranty.l If zone coating of the adhesive is not possible, a 0.125-in. (3-mm) strip should be removed on the leading and driver edge, and replaced with a non-oozingadhesive.l Remove a 0.125-in. (3-mm) strip from the leading edge to prevent labels from peeling inside the printer.l Portrait orientation is preferred, especially when printing bar codes.l Do not use labels that have exposed adhesive.Card StockCard stock is single ply and has a large array of properties, such as moisture content, thickness, and texture, that can significantly affect print quality. See"Identifying Print Media Sources and Specifications" for information on the preferred weight and grain direction of print media.Try a sample of any card stock you are considering using with the printer before purchasing a large quantity:l Be aware that preprinting, perforation, and creasing can significantly affect the print quality causing print media handling or jamming problems.l Avoid using card stock that may release hazardous emissions when heated.l Do not use preprinted card stock manufactured with chemicals that may contaminate the printer. Preprinting introduces semi-liquid and volatilecomponents into the printer.l We recommend the use of long grain card stock.NOTE: A combination of high humidity (over 60%) and high printing temperatures may seal the envelopes.