Apple has no documented specifications for paper or ink requirements when
working with preprinted letterhead and logos, beyond the information in the
"LaserWriter II Owner's Guide". Below is a copy of this specification.
"16-lb. to 20-lb. photocopy or typewriter bond (60 to 80 g/m2) in normal
mode; up to 36-lb. (135 g/m2) stock in manual mode with face-up tray open.
Accepts most letterhead and colored stock. Accepts medium-weight photocopy
transparencies. Envelopes can be printed with manual feed or from the
envelope cassette. Labels can be printed using manual feed."
However, any paper or ink used with the LaserWriter must be able to
withstand the temperature of the fuser roller. This temperature varies
between 165 and 180 degrees centigrade. It takes an 8.5-inch by 11-inch
piece of paper approximately 5.8 seconds to travel over the fuser roller or
approximately 1.5 inches per second.