Apple 12/640PS manual Chapter

WARNING Don’t use envelopes that have fasteners, snaps, or windows when printing with the LaserWriter 12/640 PS printer. Also don’t use envelopes that seal with peel-off strips or pressure-sensitive adhesives, that are curled or wrinkled, or that are likely to discolor or melt at temperatures of about 400° F (204° C). Printing on such materials can damage the printer.

For best results when printing envelopes, be sure to position your address block properly in your word-processing document. You’ll need to print in landscape (horizontal) orientation and to adjust the top and left margins in your word-processing program’s page formatting controls.

Once you’ve set the top and left margins, type the return address, skip a few lines (the exact number depends on the font you’re using and the way you like your envelopes to look, so you’ll have to experiment), and type the address block.

Note: If the multipurpose tray and the optional envelope cassette have the same size envelopes when automatic tray switching is on, the printer will use the multipurpose tray first (if the multipurpose tray is set to the envelope size). To use the envelope cassette, do one of the following:

mPick the envelope cassette as the paper source in the Print dialog box.

mSet the multipurpose tray to a size other than the one used by the envelope cassette. (You can do this with the Apple Printer Utility or the Apple LaserWriter Utility for Windows.)

mChange the optional envelope cassette to “Installed and Preferred” in the Setup dialog box. (You can view the setup dialog box by selecting the desktop printer icon and choosing Change Setup from the Printing menu.)

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